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TANDBERG D13841.08 Manual De Usuario

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D13841.08
10.2007
23
TANDBERG 
3G GATEWAY 
USER GUIDE
TANDBERG 
3G GATEWAY 
USER GUIDE
The PRI status indication consist of 3 fields (see 
About the 
Rear Panel LED Operation
 below for PRI status): 
Active – Indicates weather the PRI port is active or not.
•
Total number of channels – indicates the maximum available 
•
number of simultaneous ISDN slots (calls) per port; typically 
30 for an E1 PRI and 8 for an E1 BRI.
Number of free channels – indicates the number of free B-
•
channels on ISDN.
To view the ISDN PRI status, select the 
•
ISDN status
 item of 
the Status tab.
About the Rear Panel LED Operation
In addition to the web page indications, the ISDN interface also 
contains 4 LEDs, located at the the 3G Gateway rear panel.
These LEDs indicate the following PRI status:
•
 Green
: Normal operation
•
 Red Alarm
 or Loss of signal (LOS) indicates that there is 
no signal and thus no framing info received. A defect or 
unplugging the PRI cable will produce the same effect.
•
 Yellow Alarm
 or 
Remote Alarm Indicator
 (RAI) means that 
the 3G Gateway is receiving framing info, but in this framing 
info the other side tells the 3G Gateway that it is not reading 
the Gateway’s transmitted framing info. Typically, this may be 
a broken connector in the transmit (TX) part of the PRI cable. 
This could also indicate weak or noisy signal in the transmit 
(TX) part of the PRI cable.
•
 Blue Alarm
 indicates that the received frames are not 
synchronized properly. 
•
 No LED’s illuminate
, indicates that layer one framing is 
working (right protocol like for example EURO ISDN selected), 
however there is a problem at layer 2 caused by for example 
a CRC4 configuration mismatch.
Select 
PRI Status
 to access the 
PRI Status
 pane.
ISDN/PRI Status (PRI Versions only)