Troubleshoot The Cept/Ds1 Formatter Card; Troubleshoot The Conference Card - Mitel 3300 ICP Hardware User's Manual

3300 ICP Hardware User Guide
BRI LED State
Off
Flashing at 1 Hz
Flashing at 4 Hz
On

Troubleshoot the CEPT/DS1 Formatter Card

Refer to PRI Card troubleshooting for a description of LED behavior.

Troubleshoot the Conference Card

254
BRI LEDs
Meaning
BRI circuit not in use (no device connected to circuit)
Idle device connected to the circuit (layer 1 established)
Call being established from device on circuit (layer 2 established)
Call in progress at device on circuit (layer 3 established)
Release 3.3