D-Link DES-5016 User Manual page 38

Fast Ethernet Switching System User's Guide
Table 6: FX Module LED
LED
Lk (Link)
(Green)
Dx (Duplex mode)
(Green)
Tx (Transmitting)
(Green)
Rx (Receiving)
(Green)
Col (collisions)
(Amber)
LEDs
Lit
Port is linked to another device
Port is in full duplex
Port is transmitting data
Data is being received
Collisions are occurring at the port
Dark
No link
Port is in half duplex
No data is being transmitted
No data is being received
No collisions are occurring
30