04 optix bws 1600g v100r002 equipment networking and application issue1.21

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Internal
OTC103102 OptiX BWS
1600G Equipment
Networking and Application
ISSUE 1.21

HUAWEITECHNOLOGIES CO., LTD. Page 2All rights reserved
How to use OptiX BWS 1600G to
construct the network?

Upon completion of this course, you will be able to:
 Explain different use of the common DWDM network
topologies.
 List the common components of OptiX BWS 1600G.
 Evaluate the network resilience.
 Gather necessary information about application for
OptiX BWS 1600G.

References
 OptiX BWS 1600G Backbone DWDM
Optical Transmission System Technical
Manual
 OptiX BWS 1600G Backbone DWDM
Optical Transmission System Hardware
Description Manual

Chapter 1Chapter 1 Node TypeNode Type
Chapter 2Chapter 2 Network ApplicationsNetwork Applications
Chapter 3Chapter 3 Key Factors in NetworkingKey Factors in Networking

Node type
 OptiX BWS 1600G can provide 5 types of node equipment:
 OOptical TTerminal MMultiplexer
 OOptical LLine AAmplifier
 OOptical AAdd/DDrop MMultiplexer
 RegRegenerator
 OOptical EqEqualizer

Optical Terminal Multiplexer
 The OTM of the OptiX BWS 1600G includes the following units:
 OTU (only for open DWDM system)
 Optical Multiplexer/Optical Demultiplexer (M40, D40…)
 Optical Amplifier (OAU, OBU, OPU…)
 Supervisory Channel Access Unit (FIU)
 OSC Processing Unit (SC1, TC1)
 System Control & Communications Unit (SCC, SCE)

 OTM composed of M40/D40
ITL
ITL
OAU
OAU
MCA-C
FIU
DCM
DCM
OTU
C-ODD
C-EVEN
L-ODD
L-EVEN
1
40
1
40
1
40
1
40
OTU
OTU
OTU
MCA-L
M40
M40
M40
M40
SC1

 OTM composed of M40/D40
1
1
1
1
D40
D40
D40
D40
ITL
ITL
MCA
FIU
DCM
DCM
OTU
C-ODD
C-EVEN
L-ODD
L-EVEN
OAU
OAU
40
OTU
40
OTU
40
OTU
40
SC1
·········
DWDM side
Client side

Optical Line Amplifier
 The OLA of the OptiX BWS 1600G includes the following
units:

Optical Line Amplifier
F
I
U
F
I
U
OAU
OAU
OAU
DCM
DCM
DCM
DCM
C-band
L-band
C-band
L-band
OAU
SC2

Optical Add/Drop Multiplexer
 The OADM of the OptiX BWS 1600G includes the following units:
 OTU (only for open DWDM system)
 Optical Add/Drop Multiplexer (M40, D40, MR2…)

F
I
U
F
I
U
C-ODD
M
R
2OAU I
T
L
OBU
M
R
2 I
T
L
M
R
2
M
R
2
C-EVEN
C-ODD
C-EVEN
OBU
OAU
1
O
T
U
O
T
U
2 n-1
O
T
U
O
T
U
n
1
O
T
U
O
T
U
2 n-1
O
T
U
O
T
U
n
OAU
OAU
L-band
L-band
n≤16
n
SC2
I
T
L
n≤16
 Serial OADM: composed of MR2

OTUOTU OTUOTU
OAU
OAU
OAU
OAU
M40
D40
D40
M40
service1 service2 service1' service2'
SC2
 Parallel OADM: composed of M40/D40
F
I
U
F
I
U

Regenerator
D40
D40
D40
D40
M40
M40
M40
M40
C-ODD
C-EVEN
L-ODD
L-EVEN
ITL OAU
F
I
U
OTU
OTU
OTU
OTU
OTU
OTU
OTU
OTU
OTU
OTU
OTU
OTU
OTU
OTU
OTU
OTU
ITL
ITL
ITL ITL
ITL
ITL
ITL
OAU
OAU
OAU
OAU
OAU
OAU
OAU
F
I
U
M40
M40
M40
M40
D40
D40
D40
D40
SC2

Optical Equalizer
F
I
U
F
I
U
OPU
C-EVEN
C-EVEN
OPU
SC2
OBUDGE
DSE
DGE
DSE
OBU

Optical Equalizer
M40 OA
OA
Line-sideODF
F
I
U
SC1
OTU
OTU
OTU
OTU
OTU
OTU
D40
Client-sideequipment
DGE
DCM MCA

Summary
 Node types of OptiX BWS 1600G
system:
 OTM
 OLA
 OADM
 REG
 OEQ

Chapter 1Chapter 1 Node TypeNode Type
Chapter 2Chapter 2 Network ApplicationsNetwork Applications
2.1 Networking Capability2.1 Networking Capability
2.2 System Protection2.2 System Protection
Chapter 3Chapter 3 Key Factors in NetworkingKey Factors in Networking

Networking Capability
 Point to point
 Chain
 Ring

Point to Point
OTM OLA OLA OTM Client-side
equipments
Client-side
equipments

Chain
OTM OTM
OADM
Client-side
equipments
Client-side
equipments
Client-side
equipments

Ring
OADM
OADM
OADM
OADM1~160
1~160
1~160
1~160

Networking Classifications
 Typical spans with FEC: 5 × 20dB (72km), 2 × 24dB (87km),1 × 28dB (101km)
 Typical spans with FEC & Raman: 5 × 25dB (90km), 8 × 22dB (80km), 1 × 34dB
(120km)
 OptiX BWS 1600G-I
OM
/OA
OA
/ODOLA OLA
λ1
λn
λn+1
λ1
λn
λn+1OLA
OTS
OMS
LWF
LDG
TMX
LWC
LWF
LDG
TMX
LWC
OCh

Networking Classifications
 OptiX BWS 1600G-IV
 Typical spans with FEC: 5 × 22dB (80km), 3 × 25dB (90km),
1 × 30dB (109km)
 OptiX BWS 1600G-V
 Typical spans with FEC: 8 × 22dB (80km), 6 × 27dB (98km),
1 × 39dB (140km)
 OptiX BWS 1600G-VI
 Typical spans with HBA & Raman: 1 × 56dB (200km)
 Typical spans with HBA & ROPA: 1 × 64dB (230km)
 OptiX BWS 1600G-II
 Typical spans with FEC: 7 × 22dB (80km), 4 × 25dB (90km),1 × 32dB (116km)
 OptiX BWS 1600G-III
 Typical spans with FECFEC: 10 × 22dB (80km), 5 × 27dB (98km),1 × 34dB
(127km)
 Typical spans with FEC & Super WDMFEC & Super WDM: 25 × 22dB (80km), 10 × 27dB (98km)

Protection of NMS Information Channel - Ring
GNE
NE
Management Information
NE
NE NE
NMS

Protection of NMS Information Channel - Chain
NMS
ROUTE
R
Management Information
NMS
HUB
Router Router
DCN
GNE GNE
Traffic Channel / OSC standbyprimary
GNEGNE NENE

Protection of OptiX BWS 1600G
 Protection can be realized by following ways:
 Optical Channel Protection
− By SCS board
− By OCP board
 Optical Line Protection
− By OLP board
 Clock 1+1 dual-wavelength redundancy protection

Optical Channel Protection – By SCS Board
 Feature: OTU-level protection. One wavelength channel protects another.
Working channelProtection channel
Protection
OTU
Working
OTU
Client-side
equipment
SCS

 Feature: 1:8 OTU protection,
Optical Channel Protection – By OCP Board
Working channels
8
OTU
OTU
OTU
OTU
OTU
OTU
OTU
OTU
Protection channel
OTU
OTU
OTU
OTU
OTU
OTU
OTU
OTUD
4
0
O
C
P
8inputchannels
O
C
P
8outputchannels
M
4
0
λ
1λ
9λ 9λ
1λ
8λ
Working channels
Protection channel
OTU OTU

Optical Line Protection – By OLP Board
Site A Site B
OUT IN
IN OUT
splitter
switch splitter
switch
F
I
U
OLP OLPWorking channel
TI
RO
TO1
TO2
RI1
RI2
RI1
RI2
TO1
TO2
TI
RO
Working channel
F
I
U
Protection channel
Protection channel

Clock 1+1 Protection
 Concurrent Transmitting & Selective receiving (outputting two-channel clock)
Clock
TC
TC
FIU
1625nm
1510nm
To
BITS
TC
TC
FIU
1625nm
1510nm
 Concurrent Transmitting & Selective receiving (outputting single-channel clock)
Working channel
Protection channelProtection channel
Working channel
Clock
TC
TC
FIU
1625nm
1510nm
To
BITS
TC
TC
FIU
1625nm
1510nm
Clock Output
Working channel Working channel
Protection channelProtection channel

Summary
 Network Topology
 System Protection
 NMS Information Channel Protection
 Channel Protection
 Line Protection
 Clock Protection

Chapter 1 Node TypeChapter 1 Node Type
Chapter 2 Network ApplicationsChapter 2 Network Applications
Chapter 3 Key Factors in NetworkingChapter 3 Key Factors in Networking
3.1 Power (Attenuation)3.1 Power (Attenuation)
3.2 Dispersion Distance Limitation3.2 Dispersion Distance Limitation
3.3 Optical Signal-to-Noise Ratio3.3 Optical Signal-to-Noise Ratio
3.43.4 Nonlinear effects and other factorsNonlinear effects and other factors

 Span = (Pout-Pin)/a
 a: attenuation coefficient (dB/km)
Use 0.275dB/km according to ITU-T recommendations and
containing the effect of various factors, including connectors
and redundancy.
Power Budget
S R
Pout PinL
Site BSite A

Dispersion
 Dispersion Distance limitation = dispersion tolerance/dispersion
coefficient
 for G.652 fiber: dispersion coefficient = 20ps/nm.km
 for G.655 fiber: dispersion coefficient = 1~6ps/nm.km
OMS
Site BSite A

 Definition:
OSNR = optical signal power / noise optical power
 The ASE noise accumulation of the EDFA:
Optical Signal-to-Noise Ratio
G 1 G 2 G N-1 G N
EDFA 1
L1
EDFA 2 EDFA NEDFA N-1
L2 LN-1

Nonlinear Effects and Other Factors
 How to reduce the effects?How to reduce the effects?
 Use high-performance fiber.
 Control the optical power.
 Dispersion management.
 Advanced light source technology.
Nonlinear
effects-
Other factors-
SRS FWM SPM …
PMD …

 Node TypesNode Types
 Network ApplicationsNetwork Applications
 Key Factors in NetworkingKey Factors in Networking
Summary

04 optix bws 1600g v100r002 equipment networking and application issue1.21

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