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Cisco ONS 15454 DWDM Engineering and Planning Guide, Release 7.x
July 2006
Chapter2 Cards Specifications
2.2.3 Optical Add and Drop Cards
The 32WSS-L card supports OChSPRing protection. This implies that the optical plug-in module needs
to perform a switch fast enough to allow a total unit switching time of less than 10 ms.
The 32WSS-L is a double-slot card that has three LEDs on its front panel.
2.2.3.3 32DMX Card
Table2-10 defines the 32DMX card optical parameters and the maximum insertion loss allowed.
In-band chromatic
dispersion All paths –20 — +20 ps/nm
Group delay ripple All paths –10 — +10 ps
In-band PMD All paths — — 1 ps
Optical power/VOA
attenuation setting
resolution
— — — 0.1 dB
Optical power setting
accuracy — –0.7 0.1 + 0.7 dB
Optical power setting
precision — –0.4 0.1 + 0.4 dB
Optical power/VOA
attenuation settling time — — — 200 ms
Optical switch state
settling time ———5ms
———5
VOA dynamic range EXP RX => COM TX 20 25 — dB
Add 1, 32 => COM TX 25 25 —
Channel shutoff
attenuation (AVS) EXP RX => COM TX 28 45 — dB
Add 1, 32 => COM TX —
EXP RX => COM TX 39 50 —
Add 1, 32 => COM TX —
Optical port isolation EXP RX => COM TX 27 33 — dB
Add 1, 32 => COM TX 36 50 —
Directivity Add 1,32 <=> Add 1,32 40 — — dB
Add 1, 32 <=> EXP RX
Return loss — 40 — — dB
Maximum optical input
power — 300 — — mW
Maximum AWG startup
time — — — 10 min.
Table2-9 32WSS-L Card Parameters and Performance (continued)
Parameter Condition Min Typical Max Unit