Fast Ethernet Switching System User’s Guide
LEDs
28
Table 5: FX Module LED
LED
Lit
Dark
Lk (Link)
(Green)
Port is linked to another device
No link
Dx (Duplex mode)
(Green)
Port is in full duplex
Port is in half duplex
Tx (Transmitting)
(Green)
Port is transmitting data
No data is being transmitted
Rx (Receiving)
(Green)
Data is being received
No data is being received
Col (collisions)
(Amber)
Collisions are occurring at the port
No collisions are occurring