ISDN Interfaces
RPTU Installation
5-6 Strata CTX I&M 10/02
Table 5-2 LED Functions
LED Functions
FSYC
Frame Synchronization
On: Frame alignment is lost.
Off: Frame alignment is working properly.
AIS
Alarm Indication Signal
On: Receiving an alarm from the CO.
Off: Circuit is working properly.
RAB
Remote Alarm
On: Receiving a remote alarm from the CO.
Off: Circuit is working properly.
LOS
Loss of Signal
On: IC signal cannot be detected.
Off: Circuit is working properly.
RST
Reset
On: CPU is resetting the software.
Off: Circuit is working properly.
BSY
Busy
On: One or more B-channels are busy.
Off: All B-channels are idle.
TS
Timing Signal
On: Circuit is secondary timing source.
Off: Circuit is not used for system timing.
Flashing:Circuit is primary timing source.