The document discusses network time synchronization solutions developed by Meinberg, emphasizing the importance of accurate time for security systems like CCTV for evidential purposes. It outlines various models of Meinberg's time servers, such as Lantime M300, M600, M1000, M3000, and M4000, detailing their features like multiple reference sources and modular designs to cater to diverse synchronization needs. Additionally, it highlights the capabilities of the servers to ensure reliable time synchronization while minimizing security risks associated with internet-based time information.

1. Network Time Sync Solutions
for Security
.
The ability to synchronise security equipment is becoming ever more important.
This is not only for ensuring consistency, but also for evidential purposes.
Digital images captured from CCTV must have legally traceable time and accurate
time and date stamps to be admissible as evidence in court proceedings.
Many existing systems rely on internal PC clocks which drift over a period of time,
becoming increasingly inaccurate.
Other systems use time information available from the Internet, but this allows data
to travel through a firewall, increasing the potential risk of hackers or viruses
obtaining access into the network. Also, there are few or no guarantees that the
information being provided is accurate or reliable.
Meinberg has addressed this by developing systems that provide satellite signals
(e.g. GPS, BEIDOU, GLONASS, etc.) or analogue time code signals (e.g. IRIG-B,
AFNOR, etc.) to the surveillance computer network. This results in a very cost-
effective way to provide legally traceable time.

2. Meinberg Products for Security
• LANTIME M-Series: M300, M600
• LANTIME IMS Series: M1000, M3000, M4000

3. LANTIME M300: NTP Server in 1U Case
for Server Rackmount
The Meinberg LANTIME M300 time server provides accurate time to networks of
any size. It synchronizes all NTP- or SNTP-compatible systems. The M300 time
server uses as a reference time source either any compatible external or built-in
Meinberg reference clock (Stratum 1 mode) or up to 7 NTP servers (Stratum 2
mode).
LANTIME M300 Physical Dimensions NTP server backplane with programmable
pulse outputs and RS232 COM port

4. Key Features of LANTIME M300
• Selectable Reference Time Sources:
1. GPS: Satellite receiver for the Global Positioning System
2. GNS: Combined GPS/GLONASS/Galileo/BeiDou satellite receiver (L1 frequency
band), can also be used for mobile applications
3. PZF: DCF77 correlation receiver for middle europe
4. MSF: Long wave receiver for Great Britain
5. WWVB: Long wave receiver for the US time signal
6. TCR: Time code receiver for IRIG A/B, AFNOR or IEEE1344 codes
7. MRS: (GPS, PPS, 10MHz, NTP): Multi Reference Source - several reference
sources, adjustable following priority of signal
8. RDT: (external PPS or NTP): Time Server without internal receiver module
• Synchronization of NTP and SNTP compatible clients
• Web-based status and configuration interface (Demo) and console-based
graphical configuration utility

5. • Supported net protocols: IPv4, IPv6, NTP, (S)NTP, DAYTIME, DHCP, HTTP, HTTPS,
FTP, SFTP, SSH, SCP, SYSLOG, SNMP, TIME, TELNET
• Alert-Notification system of status change by Email, Win Mail,
SNMP or an external connected display.
• Full SNMP v1,v2,v3 support with own SNMP-daemon for status and configuration
and SNMP Trap messages
• USB Port for installing firmware updates, locking front panel menu access and
backup/restore of configuration and log files
• Meinberg GPS Antenna/Converter Unit connected with up to 300m of standard
coaxial cable RG58
• Meinberg's LANTIME time server is available with a variety of additional output
options: IRIG Time Code, frequency synthesizer and programmable pulse outputs
illustrate some of the many expansion options for your NTP server
• Two (standard) or optional up to six independent RJ-45 Ethernet interfaces 10/100
Mbit.
NTP server M300 with different receiver options (GS,WWVB,MSF...) Rear view M300RDT NTP Time Server with
1 x 10/100 Mbit and 3 x10/1000 Mbit Ethernet

6. LANTIME M600: High End NTP Time Server
The Meinberg LANTIME time server is used around the world to provide accurate
time to networks of any size. It synchronizes all systems either NTP- or SNTP-
compatible and uses an integral Meinberg reference clock as its time source to
synchronize all timing outputs with the utmost accuracy. The front panel includes a
VF Display and keypad for easy configuration, and indication of the receiver and
NTP subsystem status. A high quality precision OCXO is standard in the M600, to
allow this time server to meet the stringent holdover requirements.
LANTIME M600 Physical Dimensions LANTIME M600 with VFD,menu buttons,
status LED's and the serial Console port and front USB port

7. Key Features of LANTIME M600
• Selectable Reference Sources:
1. GPS: Satellite receiver for the Global Positioning System
2. GNS: Combined GPS/GLONASS/Galileo/ BeiDou satellite receiver (L1 frequency band), can also be
used for mobile applications
3. MRS: (GPS, PPS, 10MHz, NTP): Multi Reference Source - several reference sources, adjustable
following priority of signal
Optional Time Source GNS - GPS / GLONASS / Galileo / BeiDou Receiver:
The GNSS satellite receiver clock has been designed to provide extremely precise
time to its user. The clock has been developed for applications where conventional
radio controlled clocks can't meet the growing requirements in precision. High
precision available 24 hours a day around the whole world is the main feature of
the new system which receives its information from the satellites of the American
GPS (Global Positioning System), the Russian GLONASS (Global Navigation Satellite
System), the European Galileo and the Chinese BeiDou navigation service.
This GNSS receiver can be configured to use up to three GNSS constellations at the
same time: besides GPS and GLONASS, Beidou and Galileo are also available.

8. The GNSS board has several different optional outputs, including programmable
pulses, modulated / unmodulated time codes and RS232 COM ports, depending
on the hardware configuration.
Satellite receiver for mobile applications:
The GNSS timing board is designed for operating in mobile environments like cars,
trains or airplanes. An optimized active L1 antenna RV-76G with 10 meters coax
cable RG-58 for operation in mobile environment is still available.
The GNSS satellite receiver can determine its position under the following
conditions:
1. an acceleration of up to 5G
2. a speed of up to 500 m/s
3. an altitude of up to 18,000 meters
The variety of inputs/outputs makes this receiver the first choice for a broad
range of applications, including time and frequency synchronization tasks and the
measurement of asynchronous time events.

9. Technical specifications of the combined GPS / GLONASS receiver:
1. Number of channels: 72
2. Frequency band: L1
3. Standard accuracy: GNSS
Accuracy of pulses (depends on oscillator option):
• < ± 100ns (TCXO, OCXO LQ)
• < ± 50ns (OCXO MQ, OCXO HQ, OCXO DHQ)
Type of antenna: Combined GPS/GLONASS antenna
• Antenna with integral surge voltage protection
Frequency band:
1. GPS: 1575.42 ± 10 MHz
2. GLONASS: 1602-1615 MHz
3. Galileo: 1542.5 MHz
4. BeiDou: 1561.09 MHz
• Antenna gain: ≥ 3.5 dBic / ≥ 3 dBic
• Supply Voltage: 5 V
• Nominal impedance: 50 ohms
• Connector: N, female (bottom)
• Maximum length of antenna cable (without amplification): 70 meters (type Belden
H155)

10. • Synchronization of NTP and SNTP compatible clients
• Web-based status and configuration interface (Demo) and console-based
graphical configuration utility
• Supported networking protocols: IPv4, IPv6, HTTPS, HTTP, SSH,
TELNET, SCP, SFTP, FTP, SYSLOG, SNMP
• Alert-Notification system of status change by Email, Win Mail, SNMP or an
external connected display
• Full SNMP v1,v2,v3 support with own SNMP-daemon for status and
configuration and SNMP Trap messages
• USB Port for installing firmware updates, locking front panel menu access and
backup/restore of configuration and log files
• Meinberg GPS Antenna/Converter Unit connected with up to 300m of standard
coaxial cable RG58
• Meinberg's LANTIME time server is available with a variety of additional output
options: IRIG Time Code, frequency synthesizer and programmable pulse
outputs illustrate some of the many expansion options for your NTP server
• Four independent network interfaces (standard configuration)
• Option: 5 network ports and one IEEE 1588 interface (also see PTPv2
Grandmaster)
• One 10/100 MBit interface for LANTIME management and three network ports
with Gigabit Support (3GE)

11. IMS - LANTIME M1000: Time and Frequency
Synchronization Platform in 1U Rackmount-Enclosure
Versatile and Modular Solution for Time and Frequency Synchronization
Application in 1U housing
The 1U chassis has two power supply slots, optional two clock module slots, a CPU
slot and four (three in case of a second reference clock) slots for additional input
and output modules. Adding a second clock module and a second power supply
transforms the IMS - M1000 into a fully redundant solution. Both, wide range AC
and a 20-72 VDC power supply model can be mixed and matched as required.

12. Key Features of LANTIME M1000
Rear view LANTIME M1000 with redundant power Supply
• Optimized space usage.
• Synchronization of NTP and SNTP compatible clients.
• Web-based status and configuration interface,and console-based graphical configuration
utility.
• IMS - Intelligent Modular System platform.
• Up to 4 PTP (IEEE 1588-2008) modules.
• Redundant power and receiver option (eg GPS / GLONASS combination).
• Hot Plug.
• Arbitrary combinations of modules.
• Meinberg's LANTIME time server is available with a variety of additional output options:
IRIG Time Code, frequency synthesizer and programmable pulse outputs illustrate some
of the many expansion options for your NTP server.
• Up to 16 additional LAN ports.

13. IMS - LANTIME M3000: Versatile and Modular
Time and Frequency Synchronization Platform
The new LANTIME M3000 is a field-upgradeable and extremely flexible system that
covers your synchronization needs - today and in the future.
The M3000 chassis has four power supply slots, two clock module slots, a seamless
switchover card slot, a CPU slot and ten slots for additional input and output
modules. Adding a second clock module and the required RSC switch module will
turn the M3000 into a fully redundant solution. Up to four power supplies can be
installed, offering protection against the failure of one or more power sources or
power supply failures. Both wide range AC and a 18-72VDC power supply model
can be mixed and matched as required.

14. The possibility to add input and output modules as well as specialized
communication cards for NTP and PTP/IEEE1588 network synchronization and
remote management ensures that a LANTIME M3000 will fulfill all your
synchronization requirements and the scalability and flexibility of the IMS platform
concept enables it to cope with the changing demands of your critical applications.
Key Features of LANTIME M3000
Front cover of the M300- easily retrofitting of an ACM module M3000 in redundant Configuration (receiver and power supplies)
• Optimized space usage.
• Synchronization of NTP and SNTP compatible clients.
• Web-based status and configuration interface (Demo), and console-based graphical
configuration utility.

15. • IMS - Intelligent Modular System platform.
• Up to 10 PTP (IEEE 1588-2008) modules.
• Redundant power and receiver option (eg GPS / GLONASS combination).
• Hot Plug.
• Arbitrary combinations of modules.
• Replacement or retrofitting of an ACM module (Active Cooling Module)
possible during operation.
• Meinberg's LANTIME time server is available with a variety of additional
output options: IRIG Time Code, frequency synthesizer and programmable
pulse outputs illustrate some of the many expansion options for your NTP
server.
• Up to 40 additional LAN ports.
Input and output XHE- Rubidium Expansion Chassis
modules-easy accessible on the rear panel of the system

16. IMS - LANTIME M4000: Ultra-Versatile
Platform
The Meinberg LANTIME M4000 has been designed to fulfill the synchronization
requirements of modern 4G/5G/LTE networks. It is capable to act as a Primary
Reference Time Clock (PRTC) and, because of its unmatched flexibility, can be
deployed in different scenarios. The modularity of the IMS platform (Intelligent
Modular System) allows the M4000 to be configured for all areas of a mobile
backhaul n etwork: in the core, metro or access network areas.

17. Key Features of LANTIME M4000
• Optimized for ETSI Rack (300mm / 21 inches) or 19 inch Rackmount
• Carrier Grade NTP Time Server with Hardware Time Stamping
• SyncE - Synchronous Ethernet In/Out
• Web GUI, CLI, SNMP, RADIUS, TACACS+ (Demo)
• GBit PTP Interface (SFP/RJ45)
• GNSS (GPS and/or GLONASS) synchronized PRTC (compliant to ITU-T
G.8272).
• Up to 10 PTP (IEEE 1588-2008) modules
• Redundant power and receiver option (eg GPS / GLONASS combination)
• IEEE 1588 Grandmaster (multi-profile, incl. ITU-T G.8275.1 and G.8265.1)
M4000-Physical Dimensions M4000 chassis for 19 inch rack mount

18. • E1/T1 BITS and Clock In/Out (ITU-T G.703)
1. 1PPS In/Out
2. 10 MHz In/Out
3. PTP and NTP Input
• Meinberg's LANTIME time server is available with a variety of additional
output options: IRIG Time Code, frequency synthesizer and programmable
pulse outputs illustrate some of the many expansion options for your NTP
server
• Up to 40 additional LAN ports
• Optimized for ETSI Rack (300mm / 21 inches) or 19 inch Rackmount.
M4000 with mounting brackets for ETSI racks Simple retrofitting of the active cooling module-ACM

19. Slaveclocks: Analog Wall Clocks
Analog Wall Clocks
Key Features
• Slave Clock for bipolar Minute Lines
• 30cm or 40cm in Diameter
• Metal Number Plate with or without numerals
• Analog wall / slave clock also available as NTP clock with PoE (Power over
Ethernet)

20. ANZ14: LED Display with DCF77 Radio
Clock Option (ANZ14/DCF77)
The 14-digit LE-Display shows the time, date and day-of-week. The displays
brightness is adjustable via the menu. RS232 or 20mA-interface, unlimited
series connection possible, with buffered hardware clock and integrated power
supply unit.
The Network option ANZ14/NET: can act as a slave clock for Meinberg LANTIME
NTP Time Server.

21. Key Features
• Stand Alone Radio Clock or Display for external Clock
• Adjustable display brightness
• Good visible LED Display for Time, Date and Day-of-the-Week
• Buffered hardware clock
• optional as Slave Clock for Meinberg LANTIME NTP Time Server
(ANZ14/NET)
• Integrated Power Supply (100 - 240VAC)
• Configuration with two push buttons and setup menu.