Optical Performance For Rings And Linear Networks With Oadm Nodes; Table 16-3 Span Loss For 32-Channel Ring And Linear Networks With Oadm Nodes Using Smf Fiber - Cisco ONS 15454 DWDM Installation And Operation Manual

16.3.1 Optical Performance for Rings and Linear Networks with OADM Nodes

Table 16-2 ONS 15454 Client Card Classes (continued)
Class Rate
E
F
G
H
I
1. Forward error correction
16.3.1 Optical Performance for Rings and Linear Networks with OADM Nodes
The following tables provide optical performance estimates for open and closed ONS 15454 rings and
linear networks with OADM nodes.
using SMF fiber. Span losses shown in the table assume:
•
•
•
Note See

Table 16-3 Span Loss for 32-Channel Ring and Linear Networks with OADM Nodes Using SMF Fiber

10 Gbps
Number of
Spans Class A Class B
1 34 dB 26 dB
2 28 dB 21 dB
3 26 dB 17 dB
4 24 dB —
5 22 dB —
6 20 dB —
1
7 18 dB —
1. 0.5 dB of OSNR impairment recovered by FEC margin @ BER > 10-6
Cisco ONS 15454 DWDM Installation and Operations Guide, R4.7
16-8
Clients
2.5 Gbps TXP_MR_2.5G—3R payload data type; FEC disabled
TXPP_MR_2.5G—3R payload data type; FEC disabled
MXP_MR_2.5G
MXPP_MR_2.5G
2.5 Gbps TXP_MR_2.5G—2R payload data type
TXPP_MR_2.5G—2R payload data type
2.5 Gbps OC-48 ELR ITU
2.5 Gbps 2/4 port Gigabit Ethernet Transponder (GBIC WDM 100 GHz)
10 Gbps TXP_2.5G_10E—E-FEC
TXP_MR_10E—E-FEC enabled
OADM nodes have a loss of 16 dB and equal span losses.
Optical Preamplifier (OPT-PRE) and Optical Booster (OPT-BST/OPT-BST-E) amplifiers are
installed in all nodes.
The OPT-PRE amplifier switches to control power whenever the span loss is higher than 27 dB.
Table 16-2 for a list of cards in each class. A dash (—) indicates spans that are not supported.
Class C Class I
26 dB 36 dB
20 dB 30 dB
15 dB 28 dB
— 25 dB
— 24 dB
— 22 dB
— 21 dB
1
enabled
Table 16-3 shows the optical performance for 32-channel networks
2.5 Gbps
Class D Class E Class F
37 dB 33 dB 30 dB
31 dB 28 dB 25 dB
29 dB 26 dB 23 dB
26 dB 23 dB 20 dB
25 dB 22 dB 16 dB
24 dB 19 dB —
23 dB 16 dB —
Chapter 16 DWDM Network Reference
Class G Class H Class J
32 dB 34 dB 30 dB
27 dB 29 dB 25 dB
25 dB 26 dB 23 dB
22 dB 24 dB 20 dB
20 dB 23 dB 16 dB
17 dB 21 dB —
— 19 dB —
December 2004