The TP port of FT-80X supports duplex mode detection by auto-
negotiation (A-N). The following is the duplex mode parameters:
Fast Ethernet Device
Ethernet / Fast Ethernet Hub
Ethernet /
Fast Ethernet Switch
(without A-N)
Fast Ethernet Devices *
Support Auto-Negotiation
Note: Normally, an A-N switch will detect and set to full-
duplex, where a dual-speed hub will detects half.
There is a DIP-switch as in the left view as section 4. Please
check and follow the duplex mode of the fiber device and have
the duplex selection to your FT-80X.
4
Duplex Mode setting
FT-80X Duplex
Mode support
Half-Duplex
Half-Duplex
Full-Duplex /
Half-Duplex