Cisco ONS 15454 DWDM - Page 919

18-13
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
August 2005
Chapter 18 Network Reference
18.3.3 Optical Performance for ROADM Rings and Linear Networks
• OPT-PRE and OPT-BST/OPT-BST-E 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 18-13 shows the optical performance for 32-channel linear or ring network with ROADM and
OADM nodes using SMF fiber. Span loss values assume the following:
• All nodes in the ring or linear network are ROADM or OADM.
• OPT-PRE and OPT-BST/OPT-BST-E amplifiers are installed.
• Span losses are equal.
See Table 18-2 for a list of cards in each class. A dash (—) indicates the spans that are not supported.
Table 18-12 Span Loss for 32-Channel Linear or Ring Networks with all ROADM Nodes Using SMF 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 36 dB 37 dB 33 dB 30 dB 32 dB 34 dB —
2 30 dB 21 dB 20 dB 32 dB 34 dB 28 dB 25 dB 26 dB 29 dB —
3 28 dB 18 dB 17 dB 30 dB 32 dB 26 dB 23 dB 24 dB 27 dB —
4 26 dB — — 28 dB 30 dB 24 dB 21 dB 22 dB 25 dB —
5 25 dB — — 27 dB 29 dB 23 dB 20 dB 20 dB 23 dB —
6 24 dB — — 26 dB 28 dB 22 dB 18 dB 19 dB 22 dB —
7 23 dB — — 25 dB 27 dB 21 dB 14 dB 17 dB 20 dB —
8 22 dB — — 24 dB 26 dB 20 dB — — 18 dB —
9 21 dB——23 dB25 dB19 dB————
10 21 dB——23 dB25 dB18 dB————
11 18
1
dB
1. If the number of boosters is greater than 10 and power per channel is = to +1 dBm.
——22 dB24 dB17 dB————
12 17
1
——21 dB24 dB15 dB————
13 15
1
——21 dB23 dB—————
14 ———20 dB23 dB—————
15 ———20 dB22 dB—————
Table 18-13 Span Loss for 32-Channel Ring and Linear Networks with ROADM and OADM Nodes Using SMF 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 30 dB 23 dB 24 dB 31 dB 34 dB 31 dB 28 dB 29 dB 30 dB 28 dB
2 26 dB 19 dB 19 dB 27 dB 27 dB 26 dB 23 dB 26 dB 27 dB 23 dB
3 23 dB — — 25 dB 26 dB 23 dB 21 dB 23 dB 24 dB 21 dB
4 21 dB — — 23 dB 24 dB 22 dB 18 dB 21 dB 22 dB 18 dB
5 20 dB — — 22 dB 23 dB 20 dB 13 dB 20 dB 21 dB 13 dB