15454-40-SMR1-C Cisco ONS 15454 40-Channel ROADM

The 15454-40-SMR1-C is the Cisco ONS 15454 MSTP 40-channel single-module ROADM with an integrated optical pre-amplifier, carried on the card as 40-SMR1-C. The spare number 15454-40-SMR1-C= belongs to the same card. It was introduced with Release 9.1 and runs on the ITU 100-GHz wavelength plan.

One slot holds the OSC add/drop filter, the pre-amplifier and a 2x1 wavelength selective switch ROADM core, and the card is optimized for Degree-2 reconfigurable nodes. A Degree-2 shelf built on this card carries 200 Gbps of local add/drop traffic with 10 free slots, against 40 Gbps and 2 free slots with the older 40-WSS card.

Optical limits for this card are 7.0 dB maximum insertion loss at minimum VOA (EXP-RX to LINE-TX and ADD-RX to LINE-TX), 25 dB minimum VOA dynamic range from EXP-RX to COM-TX and 30 dB from LINE-RX to DROP-TX, and 27 dBm maximum input power. Adjacent-channel crosstalk is 37 dB minimum, non-adjacent crosstalk 45 dB minimum, polarization dependent loss 0.8 dB maximum and return loss 40 dB minimum.

The pre-amplifier stage accepts -21 to 12 dBm with all channels loaded and -43 to -10 dBm with one channel, delivers up to +17.5 dBm, and has a 5 to 38 dB gain range with a 7.5 dB maximum noise figure at gain of 21 dB or more. A midstage port takes a dispersion compensation unit with 0 to 9 dB of insertion loss. Per-channel power monitoring and control are built in, and the card is managed through Cisco Transport Controller.

The same family includes the 4x1 WSS card for multi-degree nodes, the 15454-40-SMR2-C, which adds a boost amplifier.