AT&T SB67040 User Manual page 277

Symptom
I cannot make or receive
phone calls and the
T1 Gateway RAI/LOF/LOS
LED is YELLOW (yellow).
I cannot make or receive
phone calls and the
T1 Gateway RAI/LOF/LOS
LED is RED.
I cannot make or receive
phone calls and the
T1 Gateway RAI/LOF/LOS
LED is flashing RED.
I cannot make or receive
phone calls and the
T1 Gateway RAI/LOF/LOS
LED is flashing BLUE.
Troubleshooting
Synapse User's Guide
Probable Cause
The Yellow Alarm is a
Remote Alarm Indication.
Telephone equipment
outside of your Synapse
system is sending an alarm
that signals that it is
receiving unreliable signals.
The Red Alarm indicates Loss
of Frame. A signal is present,
but its pattern cannot be
interpreted.
There is an error in the signal
from the service provider.
The Flashing Red alarm
indicates Loss of Signal
There is loss of valid signal
from the service provider.
The Blue Alarm is an Alarm
Indication Signal.
The T1 circuit is operating
correctly, but the service
provider is not sending
proper data.
Corrective Action
1. Verify that your T1 cable is connected to the equipment.
2. Check the T1 Settings to confirm that the configuration
parameters (Signaling type, Build out) correspond to the
service provider's.
3. If the problem remains, contact your T1 service provider.
1. Verify that your T1 cable is connected to the equipment.
2. Check the T1 Settings to confirm that the configuration
parameters (Signaling type, Build out) correspond to the
service provider's.
3. If the problem remains, contact your T1 service provider.
1. Verify that your T1 cable is connected to the equipment.
2. Check the T1 Settings to confirm that the configuration
parameters (Signaling type, Build out) correspond to the
service provider's.
3. If the problem remains, contact your T1 service provider.
Contact your T1 service provider.
277
Gateway Troubleshooting