Polycom EX Manual De Referencia

Chapter 6 - Testing and Troubleshooting

© Polycom, Inc.

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The Quad BRI network interface module uses pairs of indicator 
lamps associated with each BRI line to provide status indications. 
The table below shows the meanings of the LED pair associated with 
one line. Note that the lines in use may not always display the same 
status. If this is the case, you should investigate the cause. .

Red and yellow 
LEDs on

Receiving clock sync, and receiving AIS Alarm 
Indication Signal (unframed all-ones)

Green LED on

System  fully synchronized with the network and 
ready to use

Table 6-2.  PRI indicator lamps - Peripheral side

Amber LED on

Booting (brief) or starting software update (over 
60 seconds)

Amber and green 
LEDs on

Software update in progress

Green LED on

Ready

a

a. If the PRI network interface module is connected to an external 
power source, the green LED turns on after several seconds, even 
if the peripheral link cable is not connected.

Table 6-3.  Quad BRI Indicator Lamps

Green LED

Off = no connection to the switch, or no clock

On = clock is synchronized with the switch

Yellow LED 

Off = in reset mode, booting

On = active

Both LEDs on

Normal operation

Table 6-1.  PRI indicator lamps - Network side (Continued)