Data Sheet
Cisco ONS 15216 Metropolitan Dense Wavelength
Division Multiplexing 100-GHz FlexLayer Filter Solution
The Cisco ONS 15216 Metropolitan Dense Wavelength-Division Multiplexing (DWDM) FlexLayer filter solution is an ultraflexible filter architecture that allows cable multiple system operators and service providers to build "pay-as-you-grow" networks with the flexibility to upgrade in-service without preprovisioning channels that are not required. This approach creates a more desirable per-wavelength cost.
Figure 1
Cisco ONS 15216 8-Channel Filter Module
The FlexLayer architecture allows for deployment of point-to-point, point-to-multipoint, ring, bus, and tree-and-branch architectures. These networks can be deployed as unprotected or protected networks, and they may also be deployed in transmit-only applications for broadcast networks. This flexibility is inherent in the design of the FlexLayer architecture.
Cisco ONS 15216 FlexLayer Chassis
All Cisco ONS 15216 FlexLayer modules can be populated in a 1-rack-unit 19- or 23-inch rack-mountable chassis. This unit offers four module slots arranged horizontally. Each slot can accommodate one multiplexer, demultiplexer, combiner, or splitter module. Two slots, either the two rightmost or two leftmost, can accommodate a variable optical attenuator (VOA) module.
Cisco ONS 15216 FlexLayer 8-Channel Filter
The Cisco ONS 15216 8-channel filter assembly (Figure 1) is a passive unit comprising a 100-gigahertz (GHz) 8-x-1 wavelength unidirectional multiplexer or a 100-GHz 1-x-8 wavelength unidirectional demultiplexer. This unit, used either as a multiplexer or demultiplexer, can be upgraded in the field in the desired application. Four independent modules make up a 32-channel C-Band wavelength plan. The multiplexer or demultiplexer module connects independent fibers to the carrier's fiber facilities through the common ports on the chassis faceplate. Additional units can be added in service in multiple methods that offer benefits to each application. Each device incorporates a monitoring port of the composite signal along with an express port that can be used to cascade the filters together. This module is one slot wide in the FlexLayer chassis.
Cisco ONS 15216 FlexLayer 2-Channel Filter
The Cisco ONS 15216 2-channel filter assembly (Figure 2) is a passive unit comprising a 100-GHz 2-x-1 wavelength unidirectional multiplexer or a 100-GHz 1-x-2 wavelength unidirectional demultiplexer. This unit, used either as a multiplexer or demultiplexer, can be upgraded in the field in the desired application. Sixteen independent modules make up a 32-channel C-Band wavelength plan. The multiplexer or demultiplexer module connects independent fibers to the carrier's fiber facilities through the common ports on the chassis faceplate. Additional units can be added in service in multiple methods that offer benefits to each particular application. Each device incorporates a monitoring port of the composite signal along with an express port that can be used to cascade the filters together. This module is one slot wide in the chassis.
Figure 2
Cisco ONS 15216 2-Channel Optical Add/Drop FlexLayer Module
Cisco ONS 15216 FlexLayer 2-, 3-, or 4--Way Combiner or Splitter
The Cisco ONS 15216 splitter or combiner assembly (Figure 3) is a passive unit comprising a balanced 2-, 3-, or 4-way optical splitter or combiner. This unit, used as a splitter or a combiner, can be upgraded in the field in the desired application. Deployed at different places in the architecture, the unit can function to combine or to split multiple optical paths. Each device incorporates a monitoring port of the composite signal. This module is one slot wide in the chassis.
Figure 3
Cisco ONS 15216 1:2 Splitter or 2:1 Coupler FlexLayer Module
Cisco ONS 15216 Variable Optical Attenuator
The Cisco ONS 15216 Variable Optical Attenuator (VOA) assembly (Figure 4) is a passive unit comprising four discrete VOAs. This unit allows a technician at the faceplate of the unit to control optical power at some point in the network. This module is two slots wide in the chassis.
Figure 4
Cisco ONS 15216 4-Channel Optical Variable Attenuator FlexLayer Module
Specifications
Tables 1-4 denote the technical specifications for each of the Cisco ONS 15216 Metropolitan DWDM filter architecture elements.
Table 1 Cisco ONS 15216 8-Channel Optical Add/Drop FlexLayer Module Unit Specifications
Table 2 Cisco ONS 15216 2-Channel Optical Add/Drop FlexLayer Module Unit Specifications
Table 3 Cisco ONS 15216 Optical Splitter or Coupler FlexLayer Modules Unit Specifications
| Parameter | Condition | Minimum | Maximum | Unit | |
|---|---|---|---|---|---|
| Operating wavelength range |
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| Insertion loss |
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| Ripple | |||||
| Directivity | |||||
| Optical return loss | |||||
| Polarization dependent loss |
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| Maximum optical power | |||||
| Connector type | |||||
| 1Dual Window
2Dual Window |
Table 4 Cisco ONS 15216 4-Channel VOA FlexLayer Module Unit Specifcations
| Parameter | Condition | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Operating wavelength range | ||||
| Attenuation tilt |
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| Attenuation ripples |
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| Minimum insertion loss | ||||
| Attenuation range | ||||
| Number of turns for 10-dB attenuation | ||||
| Optical return loss | ||||
| Polarization dependent loss |
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| Connector type | ||||