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
for a list of cards in each class. A dash (—) indicates the spans that are not supported.
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
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 dB
25 dB
19 dB
—
—
—
—
10
21 dB
—
—
23 dB
25 dB
18 dB
—
—
—
—
11
18
1
dB
1.
If the number of boosters is greater than 10 and power per channel is = to +1 dBm.
—
—
22 dB
24 dB
17 dB
—
—
—
—
12
17
1
—
—
21 dB
24 dB
15 dB
—
—
—
—
13
15
1
—
—
21 dB
23 dB
—
—
—
—
—
14
—
—
—
20 dB
23 dB
—
—
—
—
—
15
—
—
—
20 dB
22 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
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