AudioCodes Mediant 3000 Hardware Installation Manual

Version 7.0 25 Mediant 3000
Hardware Installation Manual 3. Physical Description
3.3.1.3 PSTN LEDs
The PSTN LEDs are described in the table below.
Table 3-8: PSTN (STM-1/OC-3 or T3 Interface) LEDs Description
Interface Label Color Status Description
STM-
1/OC-3
A &
B
LINK
Green
On Working (active) link is established.
Yellow
On Protection (standby) link is established.
-
Off No link.
ALRM Red
On Indicates one of the following alarms:
Status SDH SONET
Loss of
Signal
LOS LOS
Loss of
Frame
RS-LOF
(RS =
Regenerator
Section)
LOF
Alarm
Indication
Signal
MS-AIS
(MS = Multiplex
Section)
AIS-L
(L =
Line)
Remote
Defect
Indication
MS-RDI
(MS = Multiplex
Section)
RDI-L
(L =
Line)
-
Off Normal operation (no alarms).
T3
A, B,
& C
LINK
Green
On T3 is synchronized.
Yellow
On RAI (Remote Alarm Indication) -- 'Yellow
Alarm'.
-
Off No link.
ALRM Red
On Traffic loss due to one of the following
signals:
 LOS (Loss of Signal)
 LFA (Loss of Frame Alignment)
 AIS (Alarm Indication Signal) - 'Blue
Alarm'
-
Off No Near End Alarms.
Note: The PSTN C LEDs are applicable only to T3 interface.

AudioCodes Mediant 3000 Specifications

General

Brand	AudioCodes
Model	Mediant 3000
Category	Gateway
Language	English