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Updated:February 15, 2006
Document ID:1518708346603998
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Data Sheet
The Cisco® ONS 15454 Multiservice Transport Platform (MSTP) provides a comprehensive, intelligent dense wavelength-division multiplexing (DWDM) solution for expanding metropolitan-area (metro) and regional bandwidth.
Product Overview
The Cisco ONS 15454 MSTP offers a fully integrated reconfigurable optical add/drop multiplexing (ROADM) solution, shown in Figure 1, for delivering any wavelength to any location in a metro or regional network. The ROADM cards are part of the Cisco ONS 15454 MSTP intelligent DWDM architecture engineered to reduce DWDM complexity and speed the deployment of next-generation networking solutions.
Figure 1
Reconfigurable Optical Add/Drop Multiplexing Units
Plug-in modules that deliver flexible access to network bandwidth from a single DWDM channel all the way to 32 channels, Cisco ONS 15454 ROADM cards support the requirements of service provider and enterprise networks. Table 1 outlines the ROADM module types available for the Cisco ONS 15454 MSTP with the applications they are designed to support.
Table 1. ROADM Units with Applications
Component
Deployment Application
32-channel wavelength selective switch (WSS) - C
band
This unit is the key unit for the ROADM solution operating in the C band. It can remotely and automatically control assignment of a wavelength to a network node. Dynamic Gain Equalization (DGE) is an automatic per-channel power control capability, allowing this unit to be deployed also in selected line amplification sites in the network to improve overall system performance.
32-channel demultiplexer - C band
This unit operates with the 32-channel WSS in C band ROADM nodes to provide access to channels to be dropped locally. Embedded automatic power control mechanisms enable it to interface with different types of DWDM units without requiring external attenuators.
32-channel WSS - L band
This unit is the key unit for the ROADM solution operating in the L band. It can remotely and automatically control assignment of a wavelength to a network node. DGE allows this unit to be deployed also in selected line amplification sites in the network to improve overall system performance.
32-channel demultiplexer - L band
This unit operates with the 32-channel WSS in L band ROADM nodes to provide access to channels to be dropped locally. Embedded automatic power control mechanisms enable it to interface with different types of DWDM units without requiring external attenuators.
The Cisco ONS 15454 ROADM cards operate on the ITU 100-GHz wavelength plan. Each card integrates automatic per-channel optical power control capabilities, providing automatic node- and network-based power level management. Per-channel optical path selection is also done automatically through Wavelength Path Provisioning (WPP) at network level, featuring GUI-based wavelength provisioning and easy SONET/SDH-like wavelength management.
The ROADM node architecture provides:
• High reliability - Complete independence between west- and east-facing units allows units to be housed in two separate shelves.
• Automatic optical power balancing - Per-channel automatic power control allows a unique "self healing" intelligent approach to DWDM.
• Low insertion loss - Direct integration of different functionalities in the same optical module reduces optical connections to the bare minimum.
• Fast switching - Currently deployed units can provide shared optical protection directly in the optical domain with a protection time comparable with what SONET/SDH guarantees.
The optical cards incorporate LEDs on the faceplate to provide a quick visual check of the card's operational status. An icon on each faceplate is mapped to shelf-slot icons indicating the shelf slot where the card can be installed. The cards are supported by the integrated Cisco Transport Controller craft manager, which provides access for operations, administration, maintenance, and provisioning for the system. Utilizing the embedded units capabilities, Cisco Transport Controller can also provide a per-channel graphical representation of the optical power levels associated with each individual path in the ROADM nodes (Figure 2).
Figure 2
Cisco Transport Control Per-Channel Optical Power Monitoring
The flexibility provided by the ROADM unit simplifies the design of optical networks. With the Cisco MetroPlanner optical design tool, you can design DWDM networks based on ROADM functions and verify all possible optical paths and DWDM interface types. This fully flexible method of network design allows you to compare different solutions and create "what-if" scenarios in a simple and effective way.
Figures 3 shows a sample signal-flow diagram for a Cisco ONS 15454 MSTP C-band ROADM node, outlining the use for each unit type.
Figure 3
MSTP C-band ROADM Node
Product Specifications
Tables 2 through 5 give specifications of the Cisco ONS 15454 ROADM cards. Figures 4 and 5 are functional diagrams for the Cisco ONS 15454 ROADM cards.
• TR-NWT-000332, Issue 4, Method 1 calculation for 20-year mean time between failure (MTBF)
Table 3. System Requirements
Component
Cisco ONS 15454 ANSI
Cisco ONS 15454 ETSI
Processor
TCC2P/TCC2
TCC2P/TCC2
Cross-connect
All (not required)
All (not required)
Shelf assembly
15454-SA-HD or 15454-SA-HD-DDR shelf assembly with FTA3 version fan-tray assembly
15454-SA-ETSI shelf assembly with SDH 48V fan-tray assembly
System software
Release 5.0.0 ANSI or greater for C-band units
Release 7.0.0 ANSI or greater for L-band units
Release 5.0.0 ETSI or greater for C-band units
Release 7.0.0 ETSI or greater for L-band units
Table 4. ROADM Card Specifications
Specification
32-Channel Wavelength Selective Switch - C Band
32-Channel Demultiplexer - CBand
32-Channel Wavelength Selective Switch - L Band
32-Channel Demultiplexer - LBand
Management
Card LEDs
Failure (FAIL)
Active/standby (ACT/STBY)
Signal fail (SF)
Red
Green/yellow
Yellow
Red
Green/yellow
Yellow
Red
Green/yellow
Yellow
Red
Green/yellow
Yellow
Operating environment
Temperature
-5 to 55°C
23 to 131°F
-5 to 55°C
23 to 131°F
-5 to 55°C
23 to 131°F
-5 to 55°C
23 to 131°F
Humidity
5 to 95% RH
5 to 95% RH
5 to 95% RH
5 to 95% RH
Storage environment
Temperature
-40 to 70°C
-40 to 158°F
-40 to 70°C
-40 to 158°F
-40 to 70°C
-40 to 158°F
-40 to 70°C
-40 to 158°F
Humidity
5 to 95% RH
5 to 95% RH
5 to 95% RH
5 to 95% RH
Figure 4
Functional Diagrams of 32-Channel WSS Cards
Figure 5
Functional Diagrams of 32-Channel DMX Cards
Table 5. Specifications for ROADM Cards
Specification
32-Channel Wavelength Selective Switch - C Band
32-Channel Demultiplexer - C Band
32-Channel Wavelength Selective Switch - L Band
32-Channel Demultiplexer - L Band
Optical parameters
Insertion loss (maximum at minimum VOA)
11.3 dB (EXP-RX - COM-TX)
1.6 dB (COM-RX - EXP-TX)
8.0 dB (Add 1-32 - COM-TX)
8.5 dB (COM-RX - DROP-TX)
5.8 dB
11.3 dB (EXP-RX - COM-TX)
1.6 dB (COM-RX - EXP-TX)
8.0 dB (Add 1-32 - COM-TX)
8.5 dB (COM-RX - DROP-TX)
5.8 dB
Minimum VOA dynamic range
20 dB (EXP-RX - COM-TX)
25 dB (Add 1-32 - COM-TX)
25 dB
25 dB
25 dB
Maximum input power
25 dBm
25 dBm
25 dBm
25 dBm
Filter type
Array wave guide (AWG)
AWG
AWG
AWG
Minimum transmit filter -1 dB bandwidth (all operating conditions and attenuation values)
±135 pm (EXP-RX COM-TX)
±160 pm (Add COM-TX)
±100 pm
±135 pm (EXP-RX COM-TX)
±160 pm (Add COM-TX)
±100 pm
Adjacent crosstalk (all operating conditions and attenuation values)
23 dB (minimum)
30 dB (typical)
25 dB (minimum)
23 dB (minimum)
30 dB (typical)
25 dB (minimum)
Non-adjacent crosstalk (all operating conditions and attenuation values)
30 dB (minimum)
42 dB (typical)
34 dB (minimum)
30 dB (minimum)
42 dB (typical)
34 dB (minimum)
Total crosstalk (all operating conditions and attenuation values)
20 dB (minimum)
27 dB (typical)
20 dB (minimum)
20 dB (minimum)
27 dB (typical)
20 dB (minimum)
Maximum polarization dependent loss (PDL) (all operating conditions and attenuation values)
3.5 dB (Add 1-32 - COM-TX)
0.2 dB (COM-RX - EXP-TX)
0.4 dB (COM-RX - DROP-TX)
0.6 dB
3.5 dB (Add 1-32 - COM-TX)
0.2 dB (COM-RX - EXP-TX)
0.4 dB (COM-RX - DROP-TX)
0.6 dB
Optical power setting accuracy (all operating conditions and attenuation values)
±0.7 dB
-
±0.7 dB
-
Minimum return loss
40 dB
40 dB
40 dB
40 dB
Connectors
Channel input/output ports
Composite ports
MPO
LC
MPO
LC
MPO
LC
MPO
LC
Power
Card power draw
Typical
Maximum
50W
65W
15W
25W
50W
65W
15W
25W
Physical
Size
2 slots
1 slot
2 slots
1 slot
Supported shelf slots
1-6, 12-17
1-6, 12-17
1-6, 12-17
1-6, 12-17
Ordering Information
Table 6 gives ordering information for the Cisco ONS 15454.
Table 6. System Ordering Information
Part Number
Description
15454-32-WSS=
32-Channel Wavelength Selective Switch, C-band, MPO connectors for add path, LC connectors for interconnection, includes two 2-m LC/LC fiber-optic cables
15454-32-WSS-L=
32-Channel Wavelength Selective Switch, L-band, MPO connectors for add path, LC connectors for interconnection, includes two 2-m LC/LC fiber-optic cables
15454-32-DMX=
32-Channel Demultiplexer 100 GHz (for use with 32-WSS), C-band, MPO connectors for drop path, LC connectors for interconnection, includes one 2-m LC/LC fiber-optic cables
15454-32-DMX-L=
32-Channel Demultiplexer 100 GHz (for use with 32-WSS), L-band, MPO connectors for drop path, LC connectors for interconnection, includes one 2-m LC/LC fiber-optic cables
1All compliance testing and documentation may not be completed at release of the product. Check with your sales representative for countries outside of Canada, the United States, and the European Union.
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