30
Installation RSPE 30/32/35/37
Release
 
12
 
10/2015
1.6.3 Port state
These LEDs provide port-related information.
The LEDs are directly located on the ports.
 Gigabit combo port
LED Display Color Activity Meaning
L/D Link status — None Device detects an invalid or missing 
link
Note: When an SFP transceiver is 
connected, the corresponding twisted 
pair interface is automatically inactive.
Green Lights up Device detects a valid link
Flashes 1 time a period Port is switched to stand-by
Flashes 3 times a 
period
Port is switched off
Yellow Lights up Device detects a non-supported SFP 
transceiver or a non-supported data 
rate
Flashing Device is transmitting and/or receiving 
data
Flashes 1 time a period Device detects at least one 
unauthorized MAC address (Port 
Security Violation)