NEC Univerge SV9100 Hardware Manual page 231

UNIVERGE SV9100
System Hardware Manual
Figure 4-21 GCD-PRTA LED Indication Pattern of Layer 1 on T1 Unit
Table 4-41 ISDN LED Indications
Alarm Details of the Alarm
Loss of Signal (Red alarm)
LOS No Signam (Analogue
Interface)
Alarm Indication Signal
(Blue Alarm)
AIS
Out Of Frame (Red Alarm)
OOF
Remote Alarm Indication
(Yellow Alarm)
RAI
The system does the LED control.
No Alarm
Issue 1.2
LED Indication Pattern
Following an alarm blink (red,
green, red, green) a Red LED
will light.
Following an alarm blink (red,
green, red, green) a Red LED
slowly flashes On and Off
twice.
Following an alarm blink (red,
green, red, green) a Red LED
and Green LED flash On and
Off three times
simultaneously.
Following an alarm blink (red,
green, red, green) a Green
LED
flashes On and Off twice.
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