Specifications

1-24
Cisco ONS 15530 Planning Guide
OL-7708-01
Chapter 1 System Overview
System Components
10-Gbps ITU Tunable Trunk Cards
The 10-Gbps ITU tunable trunk card sends and receives the ITU grid wavelength signal to and from an
OADM module. This card accepts up to four 2.5-Gbps (3.125-Gbps line rate) electrical signals from the
ESCON aggregation cards, 8-port FC/GE aggregation cards, or a 4-port FC aggregation card, and
combines them into one 10-Gbps signal, which is converted to the ITU grid wavelength, or channel. The
10-Gbps ITU tunable trunk card has four separate redundant interfaces to the backplane, each connecting
to the switch fabrics on the active and standby CPU switch modules.
The 10-Gbps tunable trunk card is equipped with tunable lasers, and can be tuned to four different
channels belonging to one band. Table 1-8 shows the tunable frequencies and the corresponding
wavelengths. You must use the show optical wavelength mapping command to obtain this mapping.
Table 1-8 Tunable Frequencies and Wavelengths
Channel Frequency (THz) Wavelength (nm)
0 191.9 1562.23
1 192. 1560.61
2 192.2 1559.79
3 192.3 1558.98
4 192.4 1558.17
5 192.6 1556.55
6 192.7 1555.75
7 192.8 1554.94
8 192.9 1554.13
9 193.1 1552.52
10 193.2 1551.72
11 193.3 1550.92
12 193.4 1550.12
13 193.6 1548.51
14 193.7 1547.72
15 193.8 1546.92
16 193.9 1546.12
17 194.1 1544.53
18 194.2 1543.73
19 194.3 1542.94
20 194.4 1542.14
21 194.6 1540.56
22 194.7 1539.77
23 194.8 1538.98
24 194.9 1538.19
25 195.1 1536.61
26 195.2 1535.82