The Cisco ONS 15216 Optical Supervisory Channel (OSC) 1510 allows communication to any site without the need for a functioning OADM, EDFA, or mux/demux at that site. This type of communication is established by removing the OSC signal from the composite DWDM channel before the composite channel passes through any other ONS 15216 equipment. The OSC signal is then added into the composite signal enabling Ethernet connectivity from the network operations center (NOC) to each device on the ring. This Ethernet connectivity survives any equipment or single-fiber failure and ensures that visibility to any device on the ring is maintained regardless of any failure.
Link for this document:
Cisco ONS 15216 OSC-1510 - User Guide
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