Pstn Leds; Table 3-8: Pstn (Stm-1/Oc-3 Or T3 Interface) Leds Description - AudioCodes Mediant 3000 Hardware Installation Manual

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