Cisco ONS 15454 DWDM Installation And Operation Manual page 920

18.3.3 Optical Performance for ROADM Rings and Linear Networks
Table 18-13 Span Loss for 32-Channel Ring and Linear Networks with ROADM and OADM Nodes Using SMF Fiber
10 Gbps
Number of
Spans Class A Class B
6 17 dB —
1
7 15 dB —
1. 0.5 dB of OSNR impairment recovered by FEC margin @ BER>10-6
The following tables show the pass/fail criteria for eight and sixteen ROADM nodes.
the pass/fail criteria for eight ROADM nodes (seven spans) required for any-to-any node circuit
reconfigurations:
•
•
See
Table 18-14 Pass/Fail Criteria for 32-Channel, Eight-Node ROADM Rings Using SMF Fiber
Span Amplifiers
Loss (dB) Installed
1 OPT-PRE only
2 OPT-PRE only
3 OPT-PRE only
4 OPT-PRE only
5 OPT-PRE only
6 OPT-PRE only
7 OPT-PRE and
OPT-BST/
OPT-BST-E
8 OPT-PRE and
OPT-BST/
OPT-BST-E
9 OPT-PRE and
OPT-BST/
OPT-BST-E
10 OPT-PRE and
OPT-BST/
OPT-BST-E
11 OPT-PRE and
OPT-BST/
OPT-BST-E
12 OPT-PRE and
OPT-BST/
OPT-BST-E
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
18-14
Class C Class I
— 19 dB
— 17 dB
All nodes in the ring are ROADM.
Span losses are equal.
Table 18-2 for a list of cards in each class. A dash (—) indicates the spans that are not supported.
10 Gbps
Class A Class B Class C Class I
Yes <7 <7
Yes <7 <7
Yes <7 <7
Yes <7 <7
Yes <7 <7
Yes <7 <7
Yes <7 <7
Yes <7 <7
Yes <7 <7
Yes <7 <7
Yes <7 <7
Yes <7 <7
2.5 Gbps
Class D Class E Class F
22 dB 18 dB —
21 dB 16 dB —
2.5 Gbps
Class D Class E Class F Class G Class H Class J
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Chapter 18 Network Reference
Class G Class H Class J
17 dB 18 dB —
1
15 16 dB —
Table 18-14
Yes Yes Yes
Yes Yes Yes
<7 Yes Yes
<7 Yes Yes
<7 Yes Yes
<7 Yes Yes
<7 Yes Yes
<7 Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
August 2005
shows
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