Cisco ONS 15454 DWDM - Optical Performance for Single-Span Networks

18-16
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
August 2005
Chapter 18 Network Reference
18.3.4 Optical Performance for Single-Span Networks
18.3.4 Optical Performance for Single-Span Networks
Table 18-16 lists the span loss for a single-span link configuration with eight channels. The optical
performance for this special configuration is given only for Classes A and C. This configuration assumes
a maximum channel capacity of eight channels (8-dBm nominal channel power) used without any
restrictions on the 32 available channels.
Table 18-17 lists the span loss for a single-span link configuration with 16 channels. The optical
performance for this special configuration is given only for Class A and Class C. This configuration
assumes a maximum channel capacity of 16 channels (5-dBm nominal channel power) used without any
restrictions on the 32 available channels.
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1. Cisco MetroPlanner calculates the maximum ring circumference and number of nodes that can be supported.
Table 18-15 Pass/Fail Criteria for 32-Channel, 16-Node ROADM Rings Using SMF Fiber (continued)
Span
Loss (dB)
Amplifiers
Installed
10 Gbps 2.5 Gbps
Class A Class B Class C Class I Class D Class E Class F Class G Class H Class J
Table 18-16 Span Loss for Single-Span Link with Eight Channels
Node Configuration
Number of
Spans
10 Gbps 2.5 Gbps
Class A Class B Class C Class D Class E Class F Class G
With OSCM card1 37 dB—37 dB————
With OSC-CSM card1 35 dB—35 dB————
Table 18-17 Span Loss for Single-Span Link with 16 Channels
Node Configuration
Number of
Spans
10 Gbps 2.5 Gbps
Class A Class B Class C Class D Class E Class F Class G
With OSCM or
OSC-SCM cards
1 35 dB—35 dB————