Isdn pri-u alarms – Teo E911 Response System Installation User Manual
Page 66
Teo E911 Response Server 9145 Installation Instructions
Page 66
13-280133 Rev. C
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Alarm Text
Alarm Description
Alarm Clearing
ISDN PRI-U
Transmit AIS
The 9145 does not detect an
incoming ISDN signal from the
PBX and is responding by
transmitting the AIS (Alarm
Indicating Signal also known as
Blue Alarm).
Verify the ISDN PRI-U
connection from the PBX
transmit pair to the 9145
receive pair.
ISDN PRI-U
Transmit RAI
The 9145 is in an out of service
condition and not ready to process
911 calls from the PBX. The unit is
transmitting the RAI (Remote
Alarm Indication, also known as
Yellow Alarm) signal to indicate
this condition.
This alarm is normal during
power up conditions, but
should never persist for more
than 60 seconds. If the alarm
persists, contact Teo Technical
Support.
ISDN PRI-U
Receive AIS
The 9145 is receiving the AIS
(Alarm Indicating Signal also
known as Blue Alarm) signal from
the PBX. This indicates that the
PBX does not detect an incoming
ISDN signal from the 9145.
Verify the ISDN PRI-U
connection from the 9145
transmit pair to the PBX receive
pair.
ISDN PRI-U
Receive RAI
The PBX is in an out of service
condition and not ready to process
911 calls to the 9145. The PBX is
transmitting the RAI (Remote
Alarm Indication, also known as
Yellow Alarm) signal to indicate
this condition.
This alarm is normal during
power up conditions, but
should never persist for more
than 60 seconds. If the alarm
persists, contact Teo Technical
Support.
ISDN PRI-U
Receive BPVs
Bipolar Violations (BPVs) or
Excessive Zeros ISDN Line Coding
condition.
Make sure that the PBX line
coding is configured for Bipolar
8 Zeros Substitution (B8ZS).
Electrical noise on the ISDN-PRI
line can also cause this.
ISDN PRI-U
Receive Slip
ISDN-PRI Frame Slip condition.
Make sure that the PBX is
configured for a recovered
clock source (line or loop clock).