Allied Telesis Support Portal

AT-2450FT and AT-2450FTX cards and Full Duplex

Can I operate the AT-24520FT or AT-2450FTX at Full-Duplex on the Fiber port?

The 2450FT only supports Half-Duplex on the Fiber port. You will need to change the 2450FT's Speed and Duplex in the card's Advanced Properties settings and also on the Switch to Half-Duplex.