Transceiver Is Installed But The Status Is "Not Present - Allied Telesis x600-48Ts Installation Manual

Transceiver is Installed but the Status is "Not Present"

If a SFP or XFP transceiver is installed in a transceiver slot but the Uplink
Information menu in the AlliedWare Plus Operating System Software
interface displays "Not Present" for that port, do the following:
Verify that the transceiver is completely inserted in the slot on the front
of the switch.
Note
The uplink status does not reflect whether a fiber optic cable is
connected to the transceiver.
x600 Layer 3 Gigabit Ethernet Switch Installation Guide
95