Physical Interfaces and LEDs
14
IQS-8500 Series and IQS-8120NGE/8130NGE
IQS-8510B Model
LEDs for Optical Ports
LED
Status
Description
LASER
(Red)
On
An optical signal is generated
Off
No optical signal is generated
LINK/ACT
(Green)
On
Link up.
Off
Link down.
Flashing
TX/RX activity.
DUPLEX
(Yellow)
Available
with Ethernet
interface only
On
Full Duplex mode.
Off
Half Duplex mode, or when using
100Base-X or Fibre Channel interface.
Flashing
Collisions are detected in half duplex mode.