Cisco ONS 15454 DWDM - Page 917

18-11
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
August 2005
Chapter 18 Network Reference
18.3.2 Optical Performance for Linear Networks Without OADM Nodes
Table 18-8 shows the optical performance for 32-channel linear networks using TW-RS fiber. Span loss
values assume the following:
• No OADM nodes are installed and span losses are equal.
• The DCU is 550 ps with 4 dB loss.
• Only OPT-PRE amplifiers are installed.
See Table 18-2 for a list of cards in each class. A dash (—) indicates the spans that are not supported.
Table 18-9 shows the optical performance for 32-channel linear networks using E-LEAF fiber. Span loss
values assume the following:
• No OADM nodes are installed and span losses are equal.
• The DCU is 550 ps with 4 dB loss.
• Only OPT-PRE amplifiers are installed.
See Table 18-2 for a list of cards in each class. A dash (—) indicates the spans that are not supported.
Table 18-10 shows the optical performance for 16-channel linear networks using SMF fiber. Span loss
values assume the following:
• No OADM nodes are installed and span losses are equal.
• The DCU loss is 9 dB.
Table 18-8 Span Loss for 32-Channel Linear Networks without OADM Nodes Using TW-RS Fiber
Number of
Spans
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
1 35 dB 25 dB 25 dB 37 dB 37 dB 33 dB 30 dB 32 dB 34 dB 30 dB
2 28 dB 20 dB 20 dB 30 dB 31 dB 27 dB 24 dB 26 dB 27 dB 24 dB
3 26 dB 18 dB 17 dB 27 dB 28 dB 24 dB 22 dB 23 dB 25 dB 22 dB
4 24 dB 15 dB 14 dB 25 dB 26 dB 23 dB 21 dB 22 dB 24 dB 20 dB
5 23 dB — — 24 dB 25 dB 22 dB 19 dB 21 dB 22 dB 19 dB
6 22 dB — — 23 dB 24 dB 20 dB 17 dB 19 dB 21 dB 17 dB
7 21 dB — — 23 dB 23 dB 19 dB 16 dB 18 dB 20 dB 16 dB
Table 18-9 Span Loss for 32-Channel Linear Networks without OADM Nodes Using E-LEAF Fiber
Number of
Spans
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
1 35 dB 25 dB 25 dB 37 dB 37 dB 33 dB 30 dB 32 dB 34 dB 30 dB
2 28 dB 20 dB 20 dB 30 dB 31 dB 27 dB 24 dB 26 dB 27 dB 24 dB
3 25 dB 18 dB 17 dB 27 dB 28 dB 24 dB 22 dB 23 dB 25 dB 22 dB
4 24 dB 15 dB 14 dB 25 dB 26 dB 23 dB 21 dB 22 dB 24 dB 20 dB
5 23 dB — — 24 dB 25 dB 22 dB 19 dB 21 dB 22 dB 19 dB
6 21 dB — — 22 dB 24 dB 20 dB 17 dB 19 dB 21 dB 17 dB
7 20 dB — — 21 dB 23 dB 19 dB 16 dB 18 dB 20 dB 16 dB