Dmrc training report

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DELHI METRO RAILWAYCORPORATION 2019
E L E C T R I C A L A N D E L E C T R O N I C E N G I N E E R I N G Page 1
2019
ASHUTOSH KUMAR HAPPY
ELECTRICAL AND ELECTRONIC ENGINEERING
1/1/2019
DELHI METRO RAILWAY CORPORATION

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ACKNOWLEDGEMENT
It is indeed a great pleasure for me to get a chance to
get an insight into working of a massive and a prestigious
organitation like DELHI METRO RAILWAY CORPORATION.
I am greatful to for providing me this opportunity.
I express my sincere thanks and regards to MR.
LOKENDRA SINGH SIR for his guidance and support
throughout.
Thanks to all technicians,staff, and worker of DMRC for their
whole hearted corporation extended to me, without which it
would not have been possible to get all practical knowledge of
work at such a prestigious organitation.

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DMRC
(DELHI METRO RAILWAY CORPORATION)
COMPANYPROFILE
The following section contains the details of DMRC as an organization.
Why it was created and how it has beenmaintained.
Introduction About Delhi Metro :-
The Delhi Metro has been instrumental in ushering in a new era in the sphere of
mass urban transportation in India. The swanky and modern Metro system
introduced comfortable, air conditioned and eco-friendly services for the first
time in India and completely revolutionized the mass transportation scenario not
only in the National Capital Region but the entire country.
Having constructed a massive network of about 373 Km with 271 stations in
record time in Delhi, NCR, the DMRC today stands out as a shining example of
how a mammoth technically complex infrastructure project can be completed
before time and within budgeted costby a Government agency.
The Delhi Metro Rail Corporation Limited (DMRC) was registered on 3rd May
1995 under the Companies Act, 1956 with equal equity participation of the
Government of the National Capital Territory of Delhi (GNCTD) and the
Central Government to implement the dream of construction and operation of a
world- class Mass Rapid TransportSystem (MRTS).
The DMRC opened its first corridor between Shahdara and Tis Hazari on 25th
December, 2002. Subsequently, the first phase of construction worth 65
kilometres of Metro lines was finished two years and nine months ahead of
schedule in 2005. Since then the DMRC has also completed the construction of
another 125 kilometres of Metro corridors under the second phase in only four
and a half years.
Presently, the Delhi Metro network consists of about 373 Km with 271 stations.
The network has now crossed the boundaries of Delhi to reach NOIDA and

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Ghaziabad in Uttar Pradesh, Gurgaon, Faridabad, Bahadurgarh and Ballabhgarh
in Haryana. With the opening of the Majlis Park to Shiv Vihar and Janakpuri
West - Botanical Garden Sections, new age trains equipped with the Unattended
Train Operation (UTO) technology have been introduced. These trains operate
with the Communication Based Train Control(CBTC) signaling technology
which facilitate movement of trains in very short frequencies. This network also
includes the NOIDA - Greater NOIDA Aqua Line. The Aqua Line has been
constructed by DMRC on behalf of the NOIDA Metro Rail Corporation and is
also being operated by DMRC currently. In addition, the 11.7 kilometre long
Rapid Metro also connects with the Delhi Metro network at Sikanderpur station
of Yellow Line. The Rapid Metro provides connectivity within the satellite city
of Gurugram.
The Airport Express link between the Indira Gandhi International Airport and
New Delhi has now propelled Delhi to the league of global cities which have
high speed rail connectivity between the city and the airport. The DMRC today
has over 300 train sets of four, six and eight coaches.
The Delhi Metro has also contributed tremendously on the environment front by
becoming the first ever railway project in the world to claim carboncredits for
regenerative braking. DMRC has also been certified by the United Nations
(UN) as the first Metro Rail and Rail based system in the world to get carbon
Credits for reducing Green House gas emissions as it has helped to reduce
pollution levels in the city by 6.3 lakh tons every year thus helping in reducing
global warming.
It has also set up roof top solar power plants at many of its stations. All stations
of the presently under construction corridors are being constructed as green
buildings. In the present phase of Delhi Metro’s construction, the DMRC is
nearing the completion of 160 kilometres of Metro lines which has woven a web
of Metro corridors along the city’s Ring Road besides connecting with many
other localities in NOIDA, Ghaziabad, Bahadurgarh and Ballabhgarh.
Apart from providing Delhites with a comfortable public transport option, the
Delhi Metro is also contributing significantly towards controlling pollution as
well as reducing vehicular congestion on the roads.

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Telecom
system
Fiber Optics
Transmission
system[FOTS]
Telephone
exchange/EPABX
PIDS/PAS
AFC
CCTV
RADIO
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
New Delhi-110001
TELECOMMUNICATION DEPARTMANT
It is the department of DMRC, which deals with the protection, supervision and
operation of the train. In short it the department that manages the metro traffic on the
rails. Transmission of information is possible through co-axial cables, wireless media, fibre
optics. Communication at a distance by electronics transmission of impulses, as by
telegraph, cable, telephone, radio, or television constitutes telecommunication.
Telecommunicationdepartment consistsof following systems

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SDH
MUX
NETWORKS
Metro Bhawan
New Delhi-110001
Fiber Optics Transmission system(FOTS)
It is the transmission system that uses optical fiber as communication media. Thus
optical fiber communication is the method of transmitting information through optical
fibers. FOTS can be termed as the backbone of DMRC telecommunication network. Fiber
optics eases up the data and voice communication or access to various systems at different
stations. This network is based on fiber optical cables on both sides of the track. The number
of fibers is determined in order to comply with redundancy. The fiber is redundant for
security and protection. In case of fiber optic failure, communication can take place via spare
fiber while the fiber that is down may be fixed.
FOTS is further differently prescribed in following ways.
Synchronous Digital Hierarchy(SDH)
Synchronous Digital Hierarchy (SDH) are standardized multiplexing protocols that transfer
multiple digital bit streams over optical fiber using lasers or highly coherent light from light-
emitting diodes (LEDs). At low transmission rates data can also be transferred via an
electrical interface. The method was developed to replace the Plesiochronous Digital
Hierarchy (PDH) system for transporting large amounts of telephone calls and data traffic
over the same fiber without synchronization problems
The STM-1 (Synchronous Transport Module, level 1) frame is the basic transmission
format for SDH—the first level of the synchronous digital hierarchy. The STM-1 frame is
transmitted in exactly 125 µs, therefore, there are 8,000 frames per second on a
155.52 Mbit/s OC-3 fiber-optic circuit.
The section overhead (SOH) of a STM-1 signal is divided into two parts:
the regenerator section overhead (RSOH) and the multiplex section overhead (MSOH).

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Metro Bhawan
New Delhi-110001
The overheads contain information from the transmission system itself, which is
used for a wide range of management functions, such as monitoring transmission quality,
detecting failures, managing alarms, data communication channels, service channels, etc.

DELHI METRO RAILWAY CORPORATION 2019
9
Metro Bhawan
New Delhi-110001

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Metro Bhawan
New Delhi-110001
In SDH, information is transferred through optical fiber. Through this technology we
are able to transmit data in terabytes using wavelength 1310 nm. There is no need to
demultiplex whole information coming from side by stations. Information to side by stations
is passed using STM-4 (Synchronized Transport Module) at 622.08 Mbps. 4 STM1
multiplexed in TDM (Time Division Multiplexing) forms STM-4. In this technology repeaters
are required at comparatively larger distances
Formation of E1 channel
0 1 2 3 4 5 ……………… 16 ………………… 31
1
:
:
7
E1 is the tributary signal for SDH to work.
256 such data packets give 65536 bps, approx. 64 kbps. 32 time slots of 64 kbps give E1
signal transmitting @ 2.048Mbps. E1 is bi-directional signal Out of these 32 channels 30 are
used as voice channel while 2 are used for control and signaling information.
0 16 31
0 – Control data
16 - Signalling data: Carries information about the path E1 goes through.
E2=4 E1
E3=4 E2=16 E1
E4=4 E3=16 E2= 64E1
STM1=63 E1

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MULTIPLEXER(MUX)
Metro Bhawan
New Delhi-110001
In telecommunications and computer networks, multiplexing (also known
as muxing) is a method by which multiple analog message signals or digital data streams are
combined into one signal over a shared medium.
The multiplexed signal is transmitted over a communication channel, which may be a
physical transmission medium. The multiplexing divides the capacity of the high-level
communication channel into several low-level logical channels, one for each message signal
or data stream to be transferred.
A device that performs the multiplexing is called a multiplexer (MUX).
In DMRC, the Time Division Multiplexing is used. The Time-division
multiplexing (TDM) is a digital technology. TDM involves sequencing groups of a few bits or
bytes from each individual input stream, one after the other, and in such a way that they
can be associated with the appropriate receive.
Consider an application requiring four terminals at an airport to reach a central
computer. Each terminal communicated at 2400 bit/s, so rather than acquire four individual
circuits to carry such a low-speed transmission; the airline has installed a pair of
multiplexers. A pair of 9600 bit/s modems and one dedicated analog communications circuit
from the airport ticket desk back to the airline data center are also installed.
If done sufficiently quickly, the receiving devices will not detect that some of the
circuit time was used to serve another logical communication path.

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Metro Bhawan
New Delhi-110001
If data rate is less than 64 Mbps then, it is termed as sub-rate. If data rate is more than
64 Mbps then it is termed as super rate. Access-MUX is used for systems requiring transfer
rate below 2.048 Mbps. It multiplex the data from the systems operating at the data rates
lower than 2 Mbps into E1 lines. Since no single node will be able to use all the bandwidth
therefore, all the data i.e. audio and video signals are multiplexed in order to make
maximum use of available bandwidth.

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Metro Bhawan
New Delhi-110001
Optical DistributionFrame (ODF)
GSS and FPS together forms ODF (Optical Distribution Frame). At each node (or
station), optical fiber cables are terminated in the GSS (Generic Splicing Self) and are
distributed to the system through FPS (Fiber Patching Shelf). From the FPS patch cords, both
ends have connectors for connection, are sent to the SDH where apart from being
converted to electrical signal, the signals required at the particular node dropped (or
extracted) and multiplexed into E1 lines at 2.048 Mbps which are terminated at DDF (Digital
Distribution Frame). The DDF basically provides a flexible way of connecting equipment side
to cable side. From the DDF the system working at 2 Mbps rate is directly provided the
connections with required number of E1 lines. The systems working with lower rates than 2
Mbps access the network through FMX. The FMX demultiplexes the E1 lines coming from
DDF to the lines at the lower rates for use of various systems.
There are two GSS, one for up (in Depot direction) and other for down (opposite to
Depot). There are 48 trays in each GSS. All fibers coming from and going to adjacent stations
are passing through GSS. Fibers needed at particular station are connected to FPS in zero dB
connector (0.3dB loss) through pigtail cords, connector at one end only. These fibers are
then passed to SDH. And fibers not needed at particular station are spliced through.
Splicing is a technique for joining together individual fiber or optical cable sections to forms
continuous lines for these long distant links. Splicing can be done in two ways:
 Mechanical Splices: This aligns the axis of the two fibers to be joint and physically
hold them together.
 Fusion Splices: This is accomplished by applying localized heating (i.e. by electric arc
or flame) at the interface between two butted, pre-aligned fiber ends, causing them
to soften and fuse together.
In DMRC fusion splicing is used. Splicing loss is around 0.1dB.

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Metro Bhawan
New Delhi-110001
NETWORKING
It consists of two or more computers that communicates and share their resources.
Three types of network are:
1. LAN (Local Area Network): A LAN connects network devices over a relatively short
distance. A networked office building, school, or home usually contains a single LAN. LAN
are typically owned, controlled and managed by a single person or organization. They also
use certain specific connectivity technologies, primarily Ethernet and Token ring.
2. WAN: As the term implies Wide Area Network spans a large physical distance. WAN
is geographically dispersed collection of LANs. A network device is called a router connects
LAN and WAN. In IP networking, router maintains both a LAN address and a WAN address.
WAN differs from LAN in most of the ways. Like the Internet, most WAN are not owned by
one organization but rather exist under collective or distributed ownership and
management. WANs use technology like ATM (Asynchronous Transfer Mode), frame relay
for connectivity.
3. MAN: It implies Metropolitan Area Network. It is used to encompass larger areas,
usually that of entire city.
OSI Layers (Open System Interconnection):
OSI is the name for the set of standards for communicating among computers. The
primary purpose of OSI standards is to serve the structural guideline for exchanging
information between computers, workstations and networks.

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Metro Bhawan
New Delhi-110001
TELEPHONE EXCHANGE/EPABX
EPABX is stands for Electronics Private Automatic Branch Exchange. For purpose of
planting communication link between different stations, DMRC has its self-sustained
telephone exchange. This system works on -48 V DC from SMPS. Data is processed at a rate
of 64k bps.
EPABX System at OCC:
Telephone system shall interface to the radio system to enable radio users to initiate
and receive calls to/ from EPABX extension or to MTNL or TATA INDICOM telephones.
Centralized Digital Recording System: The telephone system is equipped with a CDRS for
recording of designed lines, emergency PAS announcements and designated conversion
system.
Network Management System: The telephone network including EPABX and DLTC system is
monitored, supervised and controlled by a NMS.
EPABX rack is divided in two shelves:
 Shelf 0
 Shelf 1
These shelves can be extended according to requirements.
Shelf 0 has CPU, which is comprised of following cards:
 2 Power cards: This card distributes power to whole rack. One is active and
another is redundant.
 SF2X8 card: This card provides LAN ports for monitoring of EPABX at other
stations.
 2 DXCXL cards: These are CPU cards used for networking purposes. One card
is active and other is not in use.
 ADP: Administrative Data Processor. This is also a CPU card performs
controlling information.
 HDMO card: Hard Disk Magneto Optical card used for all software
information backup.

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EXCHANGE MDF
PHONE
IDF
Metro Bhawan
New Delhi-110001
Shelf 1 comprises of following cards:
 2 SLMAC cards: This card is for analog phones. Maximum 24 phones can be
connected to each card.
 2 SLM02 cards: This card supports digital phones. Maximum 24 phones can be
connected to each card.
 LTUCA card: This card connects shelf 1 and 0 in EPABX rack.
 2 DIUN2 cards: This card takes E1 signal from DDF. Links one station to other
stations. There are 2 ports in each card, one for analog and another for digital. 2
cards for linking to both sides.
Connection of Phones at a Station:
MDF-Main Distribution Frame
IDF-Intermediate Distribution Frame
24 ports from each SLMAC and SLM02 cards are passed to MDF through cables.
From MDF to IDF through jumper wires and then to field, i.e., phones at different rooms.
KRONES are arranged in array form in both MDF and IDF. Connector RJ11 connects handsets
to field lines from IDF. KRONEs are connected in MDF and IDF in array form, connection to
phones are supported through them.1 KRONE can support 10 phones. KRONEs in MDF are
covered with IPM, a protecting module. 2 pair of wires are connecting to single phone for
redundancy.

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BX X
EPABEPA DDFSDHODFODFSDHDDF
Stations Connectivity:
Metro Bhawan
New Delhi-110001
DDF-Digital Distribution Frame
SDH-Synchronous Digital Hierarchy
ODF-Optical distribution Frame
DDF takes 4 E1 tributary signals from SDH, 2 from stations at both sides, 1 for analog phone
and 1 for digital phone and passes to EPABX. E1 consists of 32 time slots each of 64k bps.
Slot 1 has control data and slot 16 has signalling information, rest 30 slots are used as voice
channels. So, maximum 60 calls can be done at a time.
EPABX network is connected in 8 ring topologies so that communication link between
stations retain.
Station 2Station 1

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Metro Bhawan
New Delhi-110001
In DMRC, the two types of Phones are used:
 Digital: (work on 48-54V DC)
a) Digital phone
b) Direct line console
 Analog: (work on 38-40V DC)
 Priority of digital phones is kept higher than that of analog phones, that is, digital
phone can take channel from analog port if all digital ports are busy.

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Metro Bhawan
New Delhi-110001
RADIO/ EBTS
EBTS stands for enhanced base transceiver system. EBTS is another important
equipment of DMRC. This system enables the access to the radio services while roaming
within the radio coverage. EBTS provides all the remote site functionality. EBTS has all
features of mobile communication and broadcasting of any information which are not
available with the telephone system. The radio communications system is designed for
providing system-wide voice and data communication to support the operation and
maintenance for Delhi Mass Rapid Transport System (DMRTS). It provides two-way voice
and data radio communication throughout the operational areas of DMRTS, to provide
efficient and effective train radio dispatching operation for Barakhambha OCC. One more
plus point of this system is that it adds to the level of redundancy to the communication
network of DMRC if FOTS (Fiber Optical Transmission system) breaks down as whole
communication between the source and destination does not takes place through FOTS.
This system transfers data at a rate of 128 kbps.
DMRC uses MOTOROLA DIMETRA (Digital Motorola European Trunk Radio) which is
sophisticated digital radio equipment having full benefit of TETRA (Terrestrial Trunked
Radio) standards and range is 380-400MHz. Receiving range is 380-390 MHz and
transmitting range is 390-400MHz. This system works on -48 V DC supply from SMPS.
Dimetra IP is Motorola’s TETRA-compliant digital radio system. The system provides services
to three groups of users:
 Radio Users – the mobile users in the system that can roam throughout the radio
coverage area provided by the system. The radio users access the system services
using Mobile Stations that communicate with the Base Stations in the infrastructure
using the TETRA air-interface protocol.
 Controllers – users at fixed locations that have access to advanced features and
facilities provided by the system. These features enable Controllers to efficiently
communicate with and manage fleets of mobile users.
 Network Managers – responsible for managing and maintaining the Dimetra IP
system. The system provides numerous applications that allow the network
managers to efficiently manage the system.

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Base
Station
Base
Station
Base
Station
Base
Station
Base
Station
Base
Station
Zone
Components
Base
Station
Mobile
Station
Mobile
Station
Mobile
Station
Mobile
Station
Base
Station
Base
Station
Base
Station
Base
Station
Base
Station
Base
Station
Base
Station
Base
Station
Base
Station
System
Level
Components
MSO
Components
Zone
Components
Zone
Components
Base
Station
Base
Station
Control
Site
Components
Mobile
Station
Mobile
Station
Mobile
Station
Mobile
Station
Mobile
Station
Mobile
Station
Mobile
Station
Mobile
Station
Radio Coverage Area
Base
Station
Control
Site
Components
Base Station Site
Mobile
Station
Radio Control Workstatio n (RCW)
Mobile
Station
Base
Station
Zone
Components
RemoteBBaasseeSStatatitoionnSSi tiete
Mobile
Station
F
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System Level
Components
Base
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MSO
Components
RemoteBBaaseseSStatatitoionnSSitiete
Mobile
Station
Mobile Switching Office
(MSO)
System
Interfaces
Base
Station Other
Systems
RemBotaeseBSastaetSSiotnatSSioitneSi te
Metro Bhawan
New Delhi-110001
The systemarchitecture of Dimetra-IP
Wireless transmission has the advantage of not having to install physical connections at
every point, but is limited to Line of Sight (LOS). EBTS sites are place 25 to 75 miles apart.
Thus, DMRC has total 15 EBTS sites out of which 9 EBTS sites are at line3. EBTS sites are
similar to an antenna except for one thing i.e., it requires GPS synchronization signal
through the GPS. Underground areas can not have EBTS sites hence, Leaky Co-axial Cables
(LCX) are used, with Bidirectional Antenna (BDA).
TETRA Trunking:
A method of traffic channel organization where a traffic channel is allocated for each call
transaction. Trunking facility provides a pooling of all radio channels which are then
allocated on demand to individual users.

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Metro Bhawan
New Delhi-110001
The radio users access the systems services via the Mobile Stations. The Base Stations (BSs)
provide the radio interface that allows the Mobile Stations to communicate with the system
infrastructure when moving within the system’s radio coverage area. The TETRA radio
system is a single zone system. All the BTS are controlled by two Zone Controllers in
redundant configuration. During operation, only one Zone Controller is active. The other
Zone Controller is in standby mode and not taking any load. There is also additional
equipment associated with the Zone Controllers. Each BTS is connected to a Mobile
Switching Office (MSO) and two Zone Controllers on a redundant configuration and
associated equipment are located at the MSO.
The Controllers access the system services via Communication Consoles that are located at
the OCC and the Control Rooms in Stations and Depots, or at a remote control sites such as
the Stations and Depots. Each remote control site also has some further equipment in
addition to the Dispatch Consoles.
Each base station consists of base radios. Each base radios are assigned a frequency which is
the physical channel. This physical channel is divided into four logical channels using TDMA.
The first BR would normally contain the control channel, a packet data channel and two
traffic channels. The next BRs are normally assigned with four traffic channels each. The
base station is linked to the MSO using E1 via FOTS. This E1 link transports all information
coming from and going to the base station including alarm information, audio, data and
control information
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ZDS/FV/ZSS
ATR
UCS
Term Server 1
Gateway Router
MTIGs
GGSN
PDR
RNG
SDR
Cluster DC
Primary DC
C
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Term Server 2
Gateway Router
Cluster DC
Secondary DC
CWR Panel
Core Routers
Zone Controller
Zone Controller
Echo
Canceller
Fan Out Switch
Collocated Control Site
NM Client
Printer
Data Elements
Base Stations and Control Rooms
ZDS/FV/ZSS
CWR Panel
Term Server 2 ATR
Core Routers
Gateway Router
Zone Controller
UCS
Term Server 1
Secondary DC
Zone Controller
Gateway Router
Cluster DC
Fan Out Switch
MTIGs
Printer
Echo
Canceller
Collocated Control Site
GGSN
PDR
RNG
SDR
Primary DC
Cluster DC
NM Client
Data Elements
Metro Bhawan
New Delhi-110001
MSO Component
The diagram below shows the various groups of components located at a Mobile
Switching Office (MSO)
Core Elements
Cluster Level Elements
Console Elements
Telephone Interconnect
Mobile Switching Office Component
CoreLANSwitch1
CoreLANSwitch2

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Metro Bhawan
New Delhi-110001
Types of Modes of Communication:
There are two types of modes of communication in DMRC network:
 Trunked mode operation:
This operation consists of four operation modes:
a) Group mode- It is a half duplex communication mode in which many user can
communicate with each other by selecting a common talk group. The operation is as
follows:
i) Select a talk group to communicate.
ii) Press PTT (Press to Talk) to speak.
iii) Release PTT to listen.
b) Private mode- It is a half duplex communication mode in which two users can
communicate with each other privately without interfering a talk group. The operation is as
follows:
 Select a private mode by using mode key.
 Dial private ID.
 Press PTT and release. A ring will be heard.
 Press PTT to speak.
 Release PTT to listen.
c) Phone mode- It is a full duplex communication in which radio user can talk to phone
number used within DMRC or external network connected to DMRC. It can also
communicate in reverse direction, i.e., from phone to radio. The operation is as follows:
 Select the phone mode by using mode key.
 Dial phone number.
 Press call/cancel key.
 Talk when call established.
 Press call/cancel key to end call.
d) Emergency mode-In emergency mode, TETRA in emergency mode has the highest
priority and every TETRA belonging to that group can listen the information.

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Metro Bhawan
New Delhi-110001
Base Station
The base station equipment is often known as a Base Transceiver System
(BTS). Each base station provides radio coverage in a specific geographic
area known as a cell and as the radio users roam around the systems
coverage area, they move from one cell to another. The radio users use
MSs that communicate with the BTSs using the TETRA air-interface
protocol. This protocol contains mechanisms to allow the MSs to select
the most appropriate BS for communication at any location without any
intervention from the radio user.
MTS4 has two E1 interfaces for easy ring configuration to promote high
redundancy. With ring configuration failure on one side of the ring will not
affect the working of any base station. MTS4 will be link to MSO using ring
configuration.
Ring 1 Azadpur L2e
Ring 2 Jor Bagh L2e
Haus Khas L2e
Chhatarpur L2e
Ring 3 Arjan Garh L2e
IFFCO Chowk L2e
Ring 4 Yamuna Bank Depot L3e
New Ashok Nagar L3e
Botanical Garden L3e
Ring 5 Karkarduma L4
Ring 6 Punjabi Bagh L5
PaschimVihar L5
Nangloi L5
Mundka L5
Ring 7 JLN Stadium L6
Mool Chand L6
Ring 8 Kalkaji L6
Sarita Vihar L6
Tughlakabad L6
MTS Ring Configuration

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Metro Bhawan
New Delhi-110001
The standard BTS will equip with 2 carriers (TX) Base station serving OCC and also for
two (2) of the underground station will be 4 carrier (TX)
The BTS will be installed in the TER room at the station to provide the area coverage
throughout the DMRTS network.
The basic configuration will consist of the following components:
 Tetra Site Controller (TSC)
 Base Radios (BR)
 Radio Frequency Distribution System (RFDS)
 Power Supply Unit
Base Radio (BR)
The Base Radio (BR) provides a high powered RF interface. It can provide up to 25
watts of RF power to the antenna system after RFDS losses.
Each BR utilizes TDMA technology to provide 4 channels on a 25 kHz carrier.
A single MTS 4 cabinet may hold up to four BRs.
The BR also incorporates diversity reception for increased talk-back range,
performance and reliability. A combined three-receiver board is provided with each BR
to allow for 2 or 3 branch antenna diversity.
Site Controller (SC)
The Site Controller (SC) is a PowerPC based computer. It communicates with the MSO
components over the E1 interface and controls the operation of the Base Radios. The
SC also contains a time and frequency reference module. The module includes a high
stability oscillator to provide the frequency reference and GPS receiver to provide the
timing reference.
Radio Frequency Distribution System (RFDS)
The Radio Frequency Distribution System (RFDS) uses hybrid combiner to combine the
outputs of the Base Radios into a one transmits antenna connection. The RFDS also
uses a receiver multicoupler to distribute the signal from each of the receive antenna
connections to each of the Base Radios.
Power Supply Unit (PSU)
The Power Supply Unit provides power to all of the units within the MTS 4. The PSU
accepts 220 V AC or -48V DC inputs. In addition the PSU also provides the facility to
charge an external battery supply and to revert to this power source in the event of
input power failure.

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HP2610
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lio o
er r
t tne e
tx x
P P
C C
Khyber Pass Depot
CSR / Remote
Border
CCG W Router
HP2610
CV V
lio o
er rt tne e
t x x
P P
C C
Shastr i Park Depot
MTS4
AVL
Server
ATS
Gateway 4
ATS
Gateway 1
Playback
& Admin
Playback
& AdminMain
CDRS
EBTS
X.21 Groomer
EBTS EBTS
X.21 Groomer
EBTS
Redn RCW
Server #1 (cold)
Redn RCW
Server #2 (cold)
Master
Clock
Master
Clock
BRKR OCC (Active MSO)
GR
GG SN
Redn
CR
ZC
ZC
UCS SDR PDR
NMTNMT
Print er
CWR mode
ATR
FVS
ZDS
ZSS
RNG
Main
CR
Redn
CR
Main
CR
Dimetra LAN Switch (4 x HP2610)
BR
MTIG
Clstr
DC
one
DC
Z
EC TS
GR
GG SN
Main
CR
ZC
ZC
UCSSDRPDR
NMTNMT
Print er
ATR
FVS
ZDS
ZSS
RNG
Redn
CR
Main
CR
Redn
CR
Dimetra LAN Switch (4 x HP2610)
BR
MTIG
Cls
DC
trZon
DC
e
ECTS
SHPK OCC (Standby MSO)
CWR mode
CWR mode CWR mode
CSR / Remote
Border
CCG W Router
HP2610
CV V
lio o
er rt tne e
t x xP P
C C
Ghitor ni Depot
CV
lio
ertnet xP
C
V
o
rte
x
P
C
CV
lio
ertnet xP
C
V
o
rte
x
P
C
CCGW
Remote
Border
Router
CCGW
CCGW
CV
lio
ertnet xP
C
V
o
rte
x
P
C
CV
lio
ertnet xP
C
V
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CV
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V
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CV
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V
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CV
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V
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x
P
C
CV
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C
V
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x
P
C
CV
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t x
P
C
V
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r
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xP
C
CV
lio
ertne
t x
P
C
V
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xP
C
CV
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t x
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C
V
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xP
C
CV
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t x
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V
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xP
C
CV
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t x
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V
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xP
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CV
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t x
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V
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xP
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CV
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t x
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V
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xP
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CV
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t x
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V
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xP
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CV
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t xP
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V
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CV
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t xP
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V
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CV
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t xP
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V
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CV
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t xP
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V
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CV
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t xP
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V
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CV
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t xP
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V
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CV
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t xP
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V
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C
CV
lio
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t xP
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V
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CV
lio
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t xP
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V
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CV
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t xP
C
V
o
rte
x
P
C
V
o
rte
x
P
C
CV
lio
ertne
t xP
C
RCW
Proxy
(hot)
CCGW
CCGW
Remote
Border
Router
V
o
rt
e
x
P
C
CV
lio
ertne
t x
P
C
V
o
rt
e
x
P
C
CV
lio
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t x
P
C
V
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x
P
C
CV
lio
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t x
P
C
V
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P
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CV
lio
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t x
P
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V
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C
CV
lio
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t x
P
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V
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CV
lio
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t x
P
C
V
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C
CV
lio
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t x
P
C
V
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P
C
CV
lio
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t x
P
C
V
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x
P
C
CV
lio
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t xP
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V
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CV
lio
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t xP
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V
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CV
lio
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t xP
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V
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CV
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t xP
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V
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CV
lio
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t xP
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V
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CV
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t xP
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V
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CV
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t xP
C
V
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C
CV
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C
RCW
Proxy
(cold)
A/B Switch #3 (8E1)
A/BSwitch#4(8E1+1LAN)
A/B Switch # 1 (9 E1 + 1 LAN)
AISAIS
AIS AIS
CSR
CSR
CSR / Remote
Border
CCG W Router
HP2610
CV V
lio o
er r
t tne e
tx x
P P
C C
NajafG ar h Depot
ATS
Server 1
Metro Bhawan
New Delhi-110001
Overall SystemConfiguration
BRKR OCC (Active MSO)
FVS
DMRC Phase II - Option A Configuration
SHPK OCC (Standby MSO)
PABX
EC MTIG ZC UCS ATR
ZDS
ZSS
SDR RNG PDR GGSN TS
TS GGSN PDR RNG SDR
FVS
ZDS
ZSS
ATR UCS ZC MTIG EC PABX
Dimetr a LAN Switch (4 x HP2610 )
NMT
BR Print er
Mai n
CR
Redn
CR
Mai n
CR
Redn
GR
CR
Clstr
DC
Zone
DC
Dimetr a LAN Switch (4 x HP2610 )
HP2626
CWR mode CWR mode
Zone
DC
Clstr
DC
GR
Main
CR
Redn
CR
Main
CR
Redn
CR Print er
NMT
BR
HP2626
CWR mode CWR mode
17 E1
2 LAN
Pro Switching
RAD MP
X.21 Groom er
MTS4
F
O
T
S
Total 19 MTS4 in 8 Rings
MTS4
A/B Switch #3 (8E1)
A/BSwitch#4(8E1+1LAN)
RAD MP
X.21 Groomer
Pro Switching
16 E1
1 LAN
AVL
Server
Mai n
CDR S
HP2626
EBTS
FOTS
x9
EB TS
RCW
Proxy
(hot)
Line 1e/2e/3e/4/5/6
RCW
Proxy
(cold)
EBTS
FOTS
x6
EBTS
HP2626
Main
CDRS
DLC 2E1
Line 3/3e/4/5/ 6
DLC 11--Ch
Line 1e/2e
Line 3 Line 1/2
DLC 2E1
Line 3/3e/4/5/ 6
DLC 11--Ch
Line 1e/2e
ST6000 L3/3e/ 4/ 5 L3/3e/ 4/ 5
BRKR OCC
Theat r e L1/L2 L1/L2
SHPK OCC Theat r e
Remote
Border
Router
CC FMC L3 TC1 L3 TC2 Main RCW
Server #1 (hot)
Redn RCW
Server #1 (cold)
CC FMC L1 TC1 L1 TC2 Remote
Border
Router
CSR
CCGW
CCGW
L4 TC3 L4 TC4 L5 TC5 L5 TC6
Main RCW
Server #2 (hot)
CER
Line 3/3e/4 Line 1/2e/2/2e
Redn RCW
Server #2 (cold)
L2 TC3 L2e TC4 L1e TC5 CER
CCG W
CCG W
CSR
CCGW
CCGW
L6 CC L6 TC1 L6 TC2 L6 TC3 L6 FMC
FOTS
AIS AIS
4 LAN
Line 5/6
3 LAN
CSR / Remote
Border
CCG W Router
AIS
FOTS
CSR / Remote
Border
CCG W Router
AIS
CSR / Remote
Border
CCG W Router
CSR / Remote CSR / Remote CSR / Remote CSR / Remote
Border
Border
CCG W Router
Border
CCG W Router
Border
CCG W Router
CCG W Router
HP2610 Shastr i Park Depot Khyber Pass Depot Ghitor ni Depot
HP2610 HP2610 HP2610
Yamuna Bank Depot Mundka Depot Sarita Vihar Depot NajafGar h Depot
FOTS
HP2610HP2610HP2610
ATS
Server 4
Playback
& Admi n
ATS
Server 5
Master
Clock
Master
Clock
ATS
Gatew a y 5
ATS
Gatew a y 1
ATS
Gatew a y 4
AVL
Client
Playback
& Admin
VortexPC
HP2610Vortex
ClientPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
Vortex
ClientPC
VortexPCVortexPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
Vortex
ClientPC
Vortex
ClientPC
VortexPCVortexPC
VortexPC
Vortex
ClientPC
HP2610
Vortex
ClientPC
VortexPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
VortexPC
Vortex
ClientPC
HP2626
LAN
4E1
AVL
SDTS,ATIA,CADIAPI
SDTS,ATIA,CADIAPI3E1
HP2610
8E1MTS4main
7E1Vortex
2E1EBTS
8E1MTS4redn
6E1Vortex
X.21
2E1EBTS
2E1
X.21
LAN
HP2610
8E1
MainLink
8E1
RednLink
LAN
X.21MTS4
2E1Vortex
EBTS
X.21
MTS4
Vortex
EBTS
AVL
SDTS,ATIA,CADIAPI
SDTS,ATIA,CADIAPI
3E1
3E1

e
CSR / Remote
Border
CCG W Router
HP2610
CV V
lio o
er rt tne e
t x x
P P
C C
Mundka Depot
CSR / Remote
Border
CCG W Router
HP2610
CV V
lio o
er r
t tne e
tx x
P P
C C
Sarita Vihar Depot
Option A:
• New Dimetra IP MSO supports the entire DMRTS Phase I and PhaseII network(Line1 to 6)
• Main/Standby MSO configuration for all lines
• One homogenous systemfor all lines - Full voiceand dataroaming for all radio users
Interface Switches
Main
CDRS
Interface Switches
EBTSAVL/APL
Redundant
ATS Radio
RCW Serv er
Gateway
Serv er 1
(Line 1/2e/2/2e)
SHPK OCC
Depot
RAU RCW RCW RCW RAU
Depot Depot
RAU RCW RAU RCW
Main ATS Radio ATS Radio
RCW Serv er Gateway Gateway
Serv er 4 Serv er 5
(Line 3/3e/4) (Line 5/6)
CER BRKR OCC
Theatre 1 Depot
RCW RCW RCW RAU RAU RCW
Depot
Depot Depot
RAU RCW
RAU RCW RAU RCW
EBTS
Redundant
CDRS
BRKR OCC
(Supports Line 1 to 6)
SHPK OCC
(Supports Line 1 to 6 When Main MSO Fails)
Opt
Opt
io
io
n
n
A:
A:
• New Dimetra IP MSO supports the entire DMRTS Phase I and PhaseII network (Line1 to 6)
• New Dimetra IP MSO supports the entire DMRTS Phase I and PhaseII network(Line1 to 6)
MTS MTS
BRKR OCC
(Supports Line 1 to 6)
SHPK OCC
(Supports Line 1 to 6 When Main MSO Fails)
Sub-syste m s to be provided by other contractor
Metro Bhawan
New Delhi-110001
POWER SUPPLY
The two redundant power supplies provide DC voltage power to the chassis. They
are front-loaded and come with a 6-foot (1.8-m) power cord. When both LEDs are lit, the
unit is functioning correctly.
Main and Standby MSO Switching Configuration
Dimetra MSO
(Main)
Dimetra MSO
(Standby)
Interface Switches Interface Switches
Main
CDRS EBTS MTS MTS
EBTS
Redundant
CDRS
Main
RCW Server
ATS Radio
Gateway
Serv er 4
(Line 3/3e/4)
ATS Radio
Gateway
Serv er 5
(Line 5/6)
Redundant
RCW Server
ATS Radio
Gateway
Serv er 1
(Line 1/2e/2/2e)
CER BRKR OCC
Theatre 1 Depot Depot
SHPK OCC
RCW RCW RCW
Depot
RAU
Depot
RAU RCW
Depot Depot
RAU RCW
Depot
RCW RCW RAU
RAU RCW
RAU RCW RAU RCW RAU RCW RAU RCW
Option A:
• New Dimetra IP MSO supports the entire DMRTS PhaseI and Phase II network (Line 1 to 6)
• Main/StandbyMSO configuration for all lines
• One homogenous system for all lines - Full voice and data roaming for all radiousers
Redundancy
The operation of a Megaplex system depends on three critical modules: the power
supply, the main link module, and the CL module. A failure in any one of these
modules could disable the whole system, whereas a failure in an I/O module affects
only a small part of the system, and can be generally overcome by using alternate
routes, putting unused capacity into service, etc.
The Megaplex system is designed to automatically put a redundant module in service
in case the corresponding module fails, thereby ensuring continuous system operation
in the event of any single module failure.
AVL/APL

e

e
MainDesignParameter
Metro Bhawan
New Delhi-110001
Description Parameter
Proposed System TETRA
Frequency：
Transmit (Downlink) – Range I
Range II
390 -394.999 MHz
395 -399.999 MHz
Frequency：
Receive (Uplink) – Range I
Range II
380 -384.999 MHz
385 -389.999 MHz
MTS4 RF output power 25W (44dBm)
Downlink Acceptance level –94dBm
Train Radio maximum RF output power 3 W (34.8 dBm)
Handportable maximum RF output power 1 W (30 dBm)
Train Body Loss 10 dB
TETRA Carrier spacing Minimum 25 KHz
DMO frequency band 380.5 MHz
Channel Spacing 25 KHz
Channel Bandwidth 25 KHz
Modulation /4-DQPSK
Modulation rate 36 Kbit/s
Transmitter-Receiver separation 10 MHz
Transmitter-Transmitter separation 150 KHz(min)
Voice Decoder ACELP
Multiple Access TDMA
Channels (time slots) per carrier 4

e
Ticket Office Machine
GATES
TOKENS
Emergency
Switch
EFO
Metro Bhawan
New Delhi-11001
AUTOMATIC FARE COLLECTOR (AFC)
AFC Department of DMRC deals with the fare collection system. DMRC uses automatic fare
collecting machines. The AFC machines are installed at the entry of the station.
DMRC classified AFC in various things. such as:-
Ticket Office Machine (TOM)
The Ticket Office Machine (TOM) is a ticket transport semiautomatic vending and
consulting machine, handling Contactless Smart Cards and Tokens.
The Ticket Office Machine is operated by an authorised operator to sell, add value, refund,
replace, analyse cards and eventually make adjustment in case of surcharge detection. At
the same time, passengers can follow the operations with help of the patron display.
This sale terminal is a semiautomatic machine manually operated by employees of DMRC.
The machine is a standard personal computer, connected to different appropriate
peripherals. The operation is basically done through a screen and a keyboard connected
with the PC.

e
Metro Bhawan
New Delhi-11001
Ticket Office Machine
TOM also divided in various items:-
 PASSENGER DISPLAY
 CSC READER/WRITER
 RECEIPT PRINTER
 TOKEN AUTO-FEEDER MECHANISM
TOM PASSENGER DISPLAY
The Passenger Display is a pedestal mounted vacuum
fluorescent graphic display capable of displaying messages in
English and in Hindi characters. It can be moved and oriented
towards the passenger in the best direction to indicate the relevant
information concerning the transaction or the processing taking
place. (Passenger display)
It is linked to the TOM CPU via a serial link and it exists only on TOM. The language displayed
depends on the language selected on vending operation (Hindi by default).

e
Metro Bhawan
New Delhi-110001
TOM CSC READER/WRITER
The CSC module is constituted by a modem and an antenna
included in a plastic housing. This set is linked to the TOM CPU via a
serial link. The CSC reader is powered up with a 12 V DC. The
antenna is set under the top side of the box. This allows to put and
leave the card on the box during the transaction. The CSC module
reads and writes CSC data with secure access using diversified keys
mechanism for authentication and selection of CSC.
CSC reader/writer
TOM RECEIPT PRINTER
The receipt printer is a standard desktop dot matrix receipt
printer. It is linked to the TOM CPU via a serial link.
Receipt printer
TOM TOKEN AUTO-FEEDER MECHANISM
The token Auto-feeder is composed with 2 containers, 2
hoppers, one mechanical housing including the bowl and an
electronic board: power and communication to the TOM.
It is linked to the TOM CPU via a serial link and it exists only on
TOM.
Auto-feeder mechanism

e
GATES
Metro Bhawan
New Delhi-110001
Equipment which controls the access of patrons from free area to paid area & vice
versa according to business rules that device, which demarcates the paid & unpaid area, is
known as a Gate.
There are two types of gates:
 ENTRY ONLY
 EXIT ONLY
 BIDIRECTIONAL/ HYBRID
ENTRY ONLY
This gate is only used for the entry. From this gate passenger can’t exit or leave the
concourse
EXIT ONLY
This gate is only used for the Exit. From this gate passenger can’t take entry.
HYBRID/BIDIRECTINAL
This type of gate is used for physically challenged people. It is wider than the simple
gate and is appropriate for any standard wheel chair to pass through.

e
Metro Bhawan
New Delhi-110001
TOKENS
These are the advanced tickets used in DMRC. It is used for Travelling or Entry in the
Metro Stations.
There are two types of tickets by which we can do our journey:
 Contact less smart card
 Contact less smart token
Contact less smart token:
It is a coin like device, which has a chip in which read & write operation
can be performed. It also consists of a coil, which is charged through
electromagnetic induction on interaction with the gate. A special machine
known as R/W module is used for the R/W operation in token.
Contact less smart card:
The external structure of CSC is like an ATM card or a
credit card, in which R/W & processing operation take place. It
has an electromagnetic coil at its edges, which is used for taking
power through radio waves, which is in micro volts. Before using
it, it is initialized i.e. password is encoded by DMRC through bulk
initialization machine during manufacturing.
TOKEN TYPES
Contact less Smart Token Contact less Smart Card
 Single Journey Token Stored Value Type
 Return Journey Token Tourist Type
 Free Exit Token Agent Type
 Paid Exit Token

e
Metro Bhawan
New Delhi-110001
EMERGENCYSWITCH.
First Step for emergency is to use the GRCU in emergency mode. In case of problem
use the emergency switch in the EFO. But because gates‘ll be powered off you‘ll lose the
control of Gates. The Emergency switch located in the EFO in front of the gate array is used
to power off all the gate machines so that all the flap are automatically open to facilitate the
escape of patrons through the passages

e
ToCentral System
LMT
SC : Station
Computer
Station Control Room
PTD for Ticket
Inspector
DMRC WAN Report & Log Printer
PTD Commun ica tion Unit
1Switch
LMT
Lan/Wa n Router
LMT
(Laptop Mainten an ce Tool)
AGE Legend
PID
Printer
Receip
t
Token Capture Module
CSC Coupler & Antenna
Passenger Display
X: Exit CSC
Module
X X X X X X X
PID
Printer
Receip
t
Fencing
Metro Bhawan
New Delhi-110001
StationArchitecture
37 TrainingReport-“Delhi MetroRail Corporation"
EEE
TOM for EFO
Excess Fare
Office RoomEEEE
CSC
Module
Ticket Office Room1switch
Automatic Gate Equipments Barrier
TR
(Ticke t Reader)
1switch
SE(c)SM(b)SM(c)SM(a)SE(b)SWSE(a)SM(b)SM(c)SM(a)SE(b)
TOM nTOM 1E:Enter
Fencing

e
Metro Bhawan
New Delhi-110001
Passenger InformationDisplay System (PIDS)
The aim of the system is to display and announce traffic information and other
convenient information along the station and various platform areas .The PIDS allows the
data input, transmission and diffusion of information concerning the movements of trains in
real time to all station users and the same for the application in main center using Ultra
Bright LED Display Panels .The system has capability to control virtually unlimited no. of
stations which can be done by the configuration of the network design . The PIDS designed
for the DMRC’s network has several functions such as displaying train scheduling
information and data related to train circulation like arrival and departure time.
The system is divided into two main parts:
The Operational Control Center: this refers to all the equipments installed in the OCC.
the details are :
 Server
 Assistant to Chief Controller PIDS /PAS workstation
 PIDS Backup Control Panel
The Station System: this refers to all the equipments installed in the terminal stations.
the details are :
 WorkStation
 Ultra Bright LED Panels
Central Passenger Information System: it is located at OCC and includes the system
server and the Assistant Chief Controller Workstation.
The Remote Passenger Information System: It is located at each station and includes
the station server, the station MMI (Man Machine Interface) position and Ultra Bright LED
Panels. The station server located in each station receives periodic data at location
information from the OCC server. In this manner it manages and controls the local Ultra
Bright LED Panels.

e
Metro Bhawan
New Delhi-110001
Passenger Address System (PAS)
It is one of the systems that create a user friendly ambience in the DMRC computer
services and it plays a very important role as well. As of date this system receives
information from the TIMS (management software) which is something similar to train
timetable as per the present time it sends information to this system and the address is
made. This is one of the reasons that a universal clock is required and that is the reason the
network is incorporated with a master clock server.
The scheme is such that the train driver has information about the timings and he has to see
that the train reaches a particular station as per the time frame it has been allotted, which is
similar to normal railways. The thing that is making it a little bit different from the railway is
that this timetable is a static one and so fixed and is totally computerized while that in the
railways is a dynamic one and it is user controlled.
Screenlayout (StationPAS/PIDS)

e
Metro Bhawan
New Delhi-110001
PASSENGERINFORMATIONDISPLAYSYSTEM/ PUBLIC ADDRESS SYSTEM(PIDS/PAS)
The main purpose of the PAS and PIDS is to transfer information to the passengers at
concourses and platforms for notification of scheduled train arrivals and departures and
some special messages such as emergency or evacuation messages. This system takes 3
phase AC power supply from ACDB (AC Distribution Box). Each station has two PIDS at each
platform and 2 PIDS in concourse zone, so a total of 6 PIDS used.
UIM
UIM
MSU
RMU
DOM 1
AMPLIFIER 1 & 2
DOM 2
AMPLIFIER 1 & 2
DOM 3
AMPLIFIER 1 & 2
SERVER 1 SERVER 2
SYSTEM RACK

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Metro Bhawan
New Delhi-110001
SYSTEM RACK
Public announcement system consists of several modules which can be joined
individually and provide the opportunity to integrate external sources. It is expandable and
upgradeable.
It consists of:
 DOM (Digital Output Module)
 MSU (MAIN SWITCHING UNIT)
 UIM (UNIVERSAL INTERFACE MODULE)
 PA (POWER AMPLIFIER)
 RMU (Remote Monitoring Unit)
DOM (Digital Output Module)
This system converts digital to analog signals. The VARIODYN® D1 modules DOM4-8
and DOM4-24 are equipped with four independent audio channels, each one able to drive
one 100V power amplifier and to provide two (DOM4-8) or six (DOM4-24) switched 100V
loudspeaker lines. So PIDS/PAS has a total of 12 channels, four from every DOM. All power
amplifiers are permanently supervised. In case of an error one or more backup amplifier
(optional) can replace defective power amplifier units. Used loudspeaker lines are
permanently supervised for short circuits, ground leakage, or circuit interruption. Faulty
lines are disconnected if necessary. The built-in automatic volume control (AVC) feature
permits permanent automatic volume adaptation of broadcasted sound to environmental
sound levels for each of the four audio channels in real-time.
DOM4-24 Front DOM4-24 Back

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Metro Bhawan
New Delhi-110001
MSU (MAIN SWITCHING UNIT)
It converts 3-phase AC supply to 110V DC. MSU unit distributes the mains power
to all the components mounted in the rack. In addition the unit offers a socket for the
connection of a laptop for local/network wide maintenance purposes. Each of the 3 phases
can be loaded with up to 18A. The operating state is indicated with a green indicator. A
front side 230V standard equipment socket and a RJ45 socket are available for the
connection of a laptop PC to the VARIODYN® D1-Network; this connection enables the
possibility to check PIDS/PAS system at other stations.
MSU Front MSU Back
UIM (UNIVERSAL INTERFACE MODULE)
MSU can provide interface to components outside of the VARIODYN® D1
system. An UIM can be connected to a VARIODYN® D1 DOM. The UIM digitizes two
analogue audio inputs for instance from a CD-Player and an emergency or alarm message
system. Furthermore two analogue audio outputs are available for instance for recording to
tape.
UIM Front UIM Back

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Metro Bhawan
New Delhi-110001
PA (POWER AMPLIFIER)
Power Amplifier modules are equipped with two separate channels and 100V output
transformers and are controlled and monitored by VARIODYN® D1 System modules DOM4-8
or DOM4-24. Features like electronic protection against thermal overload and short circuit
as far as temperature controlled fans are integrated. Three types of amplifiers with different
output power are available (2x200W, 2x300W or 2x500W).
2x500W Front 2x500W Back
RMU (Remote Monitoring Unit)
This unit is used to monitor 10 channels remotely whether they are working properly
or not. It also shows dB level of announcement.
Servers: Each station has two servers, one in HOT mode (perform normal operation) and
other in STANDBY mode. Both servers send status signal via RS-232 to watchdog/relay
switch. If trigger signal is missing, the Switchover unit will switch to the other server within
15 seconds. STANDBY mode is more reliable than HOT mode because there is a high risk
that both Servers may crash in some environmental conditions as both are performing the
same task.
There is a manual switch at the unit, watchdog changeover, so the Relays can be
switched either to position 1 (normal closed contacts) or position 2 (normal open contacts)
or to “AUTO” (Watchdog controlled). Switchover unit is USB powered from servers and the
Display boards are controlled via RS485/RS422 serial lines, in case of failure it switches to
other workstation. Whenever changeover occurs an alarm indication (alarm pop-up window
and audio signal) is shown on the active MMI.
Server 1 is provided with PAS card but in server 2 it has PAS card only in underground
stations not at elevated stations.

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Metro Bhawan
New Delhi-110001
Operationof PIDS/PAS
Information about the train arrival is passed to OCC from interlocking station through
track circuits having sync loop. Every information from OCC server is sent with address bit,
so that, particular station for which information is sent, picks it up. Information sent will be
in code form, about announcement or display should take place in zone specified.
Display information goes directly to PIDS through bus-bar, but announcements from server
goes to universal interface module (UIM) through DVA (Digital Voice Announcements)
channel. UIM converts analog information to digital for use in amplifiers. DOM converts the
analog signal back to digital. After amplification information goes through defined channels.
SCR (Station Control Room): DMRC has one SCR at each station. Two MMI workstations
with digital call stations placed in SCR and controller in SCR manages the local PIDS/PAS
system of that station.
MMI Application:
MMI have remote access to the servers in TER. The Operator at SCR can initiate pre-
recorded messages or make live announcements from these MMI. The Operator at each
platform can also make announcements from a digital call station provided per each PSB.
The MMI is running on MMI PC workstation. First line contains DMRC name, Station
name, Username, name of the function, time and date. The second line contains pull down
menus for File, View and Help. The rest of the screen can be divided into 5 parts:
 Function selection line: Selection of display and functions.
 Station display: Different forms of station display with PIDS Display Board Content.
 Function window: Different windows for different PAS/PIDS system function.
 PA Input Status: Shows the in use status of PA sources.
 Error Status: Shows the most recent Error/Alarm of PA/PIDS system / allows LIVE PA
messages to selected PA zones.

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Metro Bhawan
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Screenlayout (OCC PAS/PIDS)

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Camera
Storage
Encoder
Server
Workstation
Metro Bhawan
New Delhi-110001
Closed-Circuit Television ( CCTV)
The main purpose of the CCTV surveillance system is to provide the real time
surveillance and recording system by using IP CCTV system Equipment .The CCTV monitoring
is done locally at every station as well as remotely at respective OCC. Facility for the Failover
mode of central management server (BOSCH VMS & VRM) at each OCC and failover
recording at each station is also provided. The system will cover platform area, concourse
area as well as certain area in car park at each station. The CCTV system is based on the
latest network video technology, making use of sophisticated computer controlled systems,
and high sensitivity colour CCD cameras both Fixed and PTZ.
The video management systems combine both latest IP CCTV technology and redundancy
features (failover concept) to provide powerful performance without compromising on the
stability of the system. Every station has two numbers of NAS system, one of these NAS
systems is being used for Failover mode. The video from cameras are also viewed remotely
at respective OCC. The station surveillance CCTV system consists of pan/tilt/zoom cameras
and fixed cameras at all elevated & underground station of DMRC Phase-II . The video from
the analog cameras is fed into multi channel encoders at each station. The central video
management server is at OCC, the client workstations will be placed in each station for local
monitoring. There are two NAS Box at each station - one is for Local recording of station,
other is used for Failover Mode. The station surveillance CCTV system will be accessed for
monitoring important areas by using the station surveillance CCTV control equipment
located in the TER at the each stations and the OCC for the following locations -
 Key areas of the concourse such as the ticketing area, AFC etc.
 Monitoring entraining and detraining of passengers at the platform.
 Monitoring the car parking area.
The CCTV system will be synchronised with the master clock system. In case of failure of one
OCC, the backup servers at other OCC will take over the complete control thus allowing all
the operators/station to continue working with full control of the system. There is one video
wall in each OCC. There are workstations (MMI’s) with the Chief controller, traffic controller.
A work station in the security control room for Security Controller. A Nortel core switch is
provided & configured at each OCC by FOTS contractor.

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Metro Bhawan
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Basic Block Schematic for CCTV System for DMRC
CCTV System

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Metro Bhawan
New Delhi-110001
MMI for Operators onElevatedStations
For local monitoring at station, MMI will be provided at:
 Station Control Room ( SCR)
 Police Control Booth (PB)
The MMI Comprises of:
 Workstation with Dual 22” LCD monitors
 PC Keyboard & Mouse
 CCTV Keyboard with Joystick.
Using the configuration client software the MMI can be customized for each type of
operators.
5.3.2 The Client MMI on LCD monitor will have a tree like structure giving the list of cameras
for which the operator currently logged-in is authorized to see as well as the maps of the
platform with cameras seeded on the actual locations. The video can be dragged and
viewed in any of the video windows available within the GUI. The Second LCD can be used
as spot monitor where normally a set of important cameras is always viewed and in case of
alarm the alarm cameras can be popped up in full screen mode

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Metro Bhawan
New Delhi-110001
Man Machine Interface (MMI)
In operations control room, the MMI’s with PC workstation & one LCD monitor with
keyboard are provided for each operator such as the Traffic Controller (TC–1 to TC–6), Chief
Controller & two no. of MMI each having dual LCD monitors for Security controller to view &
control any camera from any station of Phase – II & Phase-I.
Video Wall for OCC-Barakhamba Road
A 4x2 Overview Display Wall consisting of 50” SXGA+ Rear Projection Modules.
The overall screen size in the matrix will be 4000 (w) x 1500 (h) mm with an overall
resolution of 5600 x 2100 pixels. The transform A controller to drive these 8 rear projection
modules is kept below the mechanical structure of the Graphics Wall and the connecting
cables between the Transform A & the Rear projection Modules run internally.
In the solution, the 4x2 matrix of 8 rear projection modules will behave as a single
logical screen using the Display Controller, Transform A, which will be running on WINDOWS
XP professional operating system and is connected to the Operator Workstations in the
Control Room through the Ethernet (10/100/1000 Mbps).
One can always load / install various WIN based applications on the Display
Controller and can run them from there to show the display of the same on the 4x2 Display
Wall.
Display Controller can also take various Analog inputs e.g. RGB, s-video, composite
video or streaming input from IP Camera by putting in separate input cards in the controller.
The solution enables the users to show any 87 IP video sources simultaneously in separate
windows freely scalable and moveable on the display wall. Each window represents one
station. Different cameras of that station are shown sequentially in this window.
In the solution, 1 no. of Dual Multi standard Input card has been considered which
enables the user to show 2 sources like analog video source (composite or s-video), RGB
input source, DVI input etc. in separate windows freely scalable and moveable on the
display wall. One can also show the mirror images of the monitors of the WIN XP based OS /
PC connected with Display Controller over LAN.
Using the Wall Management Software, operator can pre configure various
display layouts to be displayed any time with a simple mouse click. The applications defined
in a particular layout are automatically opened, sized and positioned accordingly on the
Display Wall as soon as that particular layout is launched. Using the Remote Pointer
functionality, the control of the keyboard and mouse of the Display Controller, can be taken
over by any WINDOWS XP OS’s keyboard and mouse if the same is connected with Display
Controller over the LAN.

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Metro Bhawan
New Delhi-110001
CAMERAS
Fixed Indoor CCTV Camera
The BOSCH LTC 0455/11 provided at the underground and elevated stations are
compact rugged, 1/3-inch image format digital color CCD cameras. Their superior sensitivity,
resolution and picture quality provide optimal performance in virtually all situations. This
fully automatic camera is ready to work for you, and is easy to install in even the most
demanding applications. On-screen Displays (OSD) provide quick and easy access to all
camera features.
The LTC 0455/11 cameras also comes with a lens wizard that automatically detects
the type of lens installed and provides an OSD guide that allows the installer to easily adjust
the lens level and focus without special tools or filters.
The automatic black level feature, now introduced in color cameras, enhances contrast
by removing veiling glare from the picture. Night Sense is used to further extend the
excellent sensitivity by a factor 3 in monochrome operation. This mode can be automatically
activated under low light situations.
Automatic sensing for tracking white balance provides true to life color images in
indoor and outdoor applications.
The ability to operate on AC or DC provides added flexibility to system designs and
reduces the amount of training and support items to keep on-hand.
Easy Installation, digital signal processing, on screen displays, superior picture quality
and reliability brings the video performance of high resolution colour cameras to a level
never reached before and makes the LTC 0455 series the best choice for first time and
professional users.

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Metro Bhawan
New Delhi-110001
PTZ/ Dome CCTV Camera
The VG4-313-ECS0P Day/Night Auto Dome camera with housing mounting provided
at the underground and elevated stations offers all of the features needed for any
surveillance application. Auto Dome lets you focus on details missed by other cameras.
Image control and quality are integral aspects of any indoor surveillance system. The
VG4-313-ECS0P Day/Night Auto Dome camera offers 26X optical zoom lenses and a full 12x
digital zoom once the end of the optical zoom is reached. In addition, the patented scaling
feature ensures that you have optimal control for viewing at all zoom settings.
Effective surveillance cameras must also perform well under a range of lighting
conditions. To enhance sensitivity when night falls, the VG4-313-ECS0P Day/Night Auto
Dome camera automatically switches from color to monochrome by removing the infrared
filter. Whether you program the camera to switch automatically, or use the manual switch,
the result is optimal camera function, day or night. For operation in the darkest conditions,
the slow shutter control feature automatically reduces the shutter speed to as little as 1
second. This increases sensitivity by more than 50 times.
In answer to concerns about personal privacy, the VG4-313-ECS0P Day/Night Auto
Dome camera provides sector blanking and privacy masking. These features allow
customization to ensure privacy for diverse needs.

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Metro Bhawan
New Delhi-110001
iSCSI NAS Box/STORAGE
Designed as a scale-out system, the DSA‑N2B40 allows connecting up to six disk
shelf expansion units to one base unit. The base unit provides a maximum of 12 x 1 TB
SATA‑II hard disk drives and each disk shelf expansion unit will provide a maximum of 14 x 1
TB hard disk drives.
The DSA-N2B40 is a fully featured RAID protected disk array which provides RAID‑4
protection for capacity-oriented environments and RAID‑DP protection for availability
oriented environments. RAID-DP (Double Parity) is a form of RAID-6 without any
performance penalty. RAID-DP is strongly recommended if the system will be used with disk
shelf expansion units.
With redundant hot-swap power and cooling, four Gigabit Ethernet ports, NVRAM,
and protection from double-disk failure and single bit errors during RAID rebuilds with
RAID‑DP, the DSA-N2B40 keeps your data safe and available.

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Metro Bhawan
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Encoder
The Bosch VIP X1600 XF is a modular, high-performance CCTV video encoder and
decoder system. Each VIP X1600 XF is a 4 x 4 unit that accommodates up to four hot-
swappable modules, allowing modules to be added or exchanged at any time without
interrupting transmission to the existing channels.
The VIP-X1600-XFB base system provides two no’s of 1 Gbps Ethernet ports. This
provides a greater choice of network connectivity and allows for easier inside-rack cabling
like, for example, direct connection to an iSCSI storage array.
View the video on a PC using Bosch’s comprehensive video management system,
with or without Bosch’s IntuiKey keyboard. Alternatively, use a Web browser. These high
performances, multi-channel devices with iSCSI Recording at- the-Edge, offer top-of-the-line
Video-over-IP performance for CCTV today. Designed for reliability, the VIP X1600 XF
features hot-swappable video modules, dual redundant power supply inputs, and redundant
network ports.

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Metro Bhawan
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Server
The HP ProLiant DL380 G6 Server is a versatile 2U rack server that is designed to
meet a wide range of deployment needs. It combines increased performance, durability,
availability and energy efficiency. The HP ProLiant DL380 G6 delivers engineering excellence,
increased flexibility, enterprise-class uptime, advanced management features making it
well-suited for a variety of rack deployments and applications.
Key features and benefits
 Proven performance: - A powerful and versatile server, the HP ProLiant DL380 G6
delivers outstanding performance.
Manageability: - The HP ProLiant DL380 G6 comes with powerful management tools
to program and control all aspects of your dynamic environment.
 Greater versatility: - The DL380 G6 is designed to provide deployment flexibility.
The CS provides management, monitoring, and control of the entire system. The
Central Server software is installed on central server where in each server can take care of
500 cameras. For CCTV contract there is total 17 server installed in OCC BRKR for phase 2
stations, RSS, Depots & OCC BRKR, there shall be 6 servers installed at OCC SHPK for existing
stations of Phase 1 (Line 1, Line 2 & Line 3).The BOSCH VMS CS is responsible for following
functions in the BOSCH VMS architecture:
Management, monitoring, and control of the entire system.
The central server shall also maintain data stream management, alarm management,
priority management, central logbook and user management. The BOSCH VMS CS is
installed on a Server grade machine.

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Metro Bhawan
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WorkStation
Workstation is designed and engineered to give you and your business a professional
edge. With outstanding price/performance, the HP xw4600 is an affordable workstation
solution based on the new Intel® X38 Express performance chipset and the latest
workstation-class Dual and Quad-Core Intel processors.
Figure No. – 35
The computing horsepower of the HP xw4600 allows you to meet the increasingly
demanding requirements of graphics and other data-intensive professional applications. With
more ports and expandability than before, it is easy to add memory, peripherals and storage
as your future requirements change. Like all HP Workstations, the HP xw4600 offers a tool-
less chassis design for simple serviceability as well as free remote management software and
optional Remote Graphics Software to assist in making your work life easier.

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Metro Bhawan
New Delhi-110001
OCC BarakhambaRoad

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57 TrainingReport-“Delhi Metro Rail Corporation"
Metro Bhawan
New Delhi-110001
CONCLUSION
Experience:
The period of 6 weeks of training in Delhi Metro Rail Corporation was a learning experience.
It presented an opportunity of seeing how engineers work and co-ordinate in an
organization. The study of various Hierarchies in a Delhi Metro Rail enriched the knowledge
regarding the various levels of government organization.
The review of the Signal & Telecommunication where the collection of Communication
through respective Stations and track of Delhi Metro were compiled and summarised to
prepare the Signal & Telecommunication and to know the process of working in an
organization in co-ordination.
It also helped to gain an opportunity to study the various community/stakeholders
participations of various Signal & Communication units. This enhanced the report writing
skills and presentation techniques for the future.
It raised up the knowledge regarding Signal & Telecommunication and also the participation
of Communication company’s of different associations like BEL, BHEL, HCL etc are involved
in Electronics and Communication field.
Thus, the Signal & Telecommunication Department helped us to review the various
techniques and inventions which are required to be implemented properly to make the
vision of Electronics world of future successful.

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