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Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 7 Reconfigurable Optical Add/Drop Cards
7.4.3 32WSS-L ROADM Functionality
7.4.3 32WSS-L ROADM Functionality
The 32WSS-L works in combination with the 32DMX-L to implement L band (1570 to 1620 nm)
functionality. As a ROADM node, the ONS 15454 can be configured to add or drop individual optical
channels using CTC, Cisco TransportPlanner, and CTM. ROADM functionality using the 32WSS-L
card requires two 32DMX-L single-slot cards and two 32WSS-L double-slot cards (totalling six slots
needed in the ONS 15454 chassis).
For other cards’ ROADM functionality, see that card’s description in this chapter. For a diagram of a
typical ROADM configuration, see the “9.1.4 ROADM Node” section on page 9-12.
Note A terminal site can be configured using a 32WSS-L card and a 32DMX-L card plugged into the east or
west side of the shelf.
7.4.4 32WSS-L Power Monitoring
Physical photodiodes P1 through P69 monitor the power for the 32WSS-L card. Table 7-11 shows the
returned power level values calibrated to each port.
7.4.5 32WSS-L Channel Plan
The 32WSS-L card uses 32 banded channels on the ITU-T 100-GHz grid, as shown in Table 7-12.
Table 7-11 32WSS-L Port Calibration
Photodiode CTC Type Name Calibrated to Port
P1–P32 ADD (Power ADD) ADD RX
P33–P64
1
1. P33–P64 monitor either ADD or PASSTHROUGH power, depending on the state
of the optical switch
PASS THROUGH COM TX
ADD (Power) COM TX
P65 OUT EXP EXP TX
P66 IN EXP EXP RX
P67 OUT COM COM TX
P68 IN COM COM RX
P69 DROP DROP TX
Table 7-12 32WSS-L Channel Plan
Band ID Channel Label
Frequency
(THz)
Wavelength
(nm)
B77.8 77.8 190 1577.86
78.6 189.9 1578.69
79.5 189.8 1579.52
80.3 189.7 1580.35
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