Note: A minimum attenuation of 5 dB must be present between the transmitter and receiver. To avoid receiver saturation, you must insert a minimum attenuation of 5 dB when:
•testing the CWDM SFP GBIC in loopback mode
•using short runs of fiber with no intermediate CWDM OADM or CWDM OMUX
To determine the expected signal loss for a CWDM OADM, CWDM OMUX, or fiber length, see Installation and Networking Guidelines for Optical Routing, part number
Given a loss budget of 24 dB and assuming fiber loss of
.25 dB/km, up to 96 km reach is supported with no intermediate CWDM OADM or CWDM OMUX.
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