User guide

Radiance 1000Mbps Redundant Interface Line Cards 13
transmit (TX) optical conductor of the device connects to the receive
(RX) optical conductor of the Radiance card.
Use the link (LK) LEDs on the front panel of the card to verify correct
segment connectivity. As you insert the cable into each port, the LK
LED will be lit if the following conditions are met:
• Power is being applied to the chassis.
• There is an active device connected to the other end of the
cable, and it is sending idle link signals.
• All connections are secure and the cables are undamaged.
• Both ends of the cable are set to the same auto-negotiation
state. To maximize device compatibility, the R752 is designed
with auto-negotiation enabled on its copper ports and disabled
on its fiber ports. If necessary, disable auto-negotiation and set
full duplex on the fiber port of the remote device to establish
link.
For information on replacing the SFP transceiver, refer to Changing the
SFP Transceiver.