AT&T SB67030 Administrator's Manual page 215

Symptom
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 AIS LED is
flashing BLUE.
I cannot make or receive
phone calls and the
T1 Gateway LOOPBK LED is
GREEN or flashing GREEN.
Troubleshooting
Synapse Administrator's Guide
Probable Cause
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.
The system is in Local
Network or Loopback test
mode.
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.
Contact your T1 service provider.
The LOOPBK LED should only be ON when you have
activated a Loopback test. If this test should not be
running, disable the Loopback Test in the Admin WebUI.
Log in as administrator, click T1 Settings, then T1
a.
Diagnostics.
b. Change the T1 in loopback test mode by selecting
from the Set Loopback Mode drop-down list.
Select none and then
c.
215
Gateway Troubleshooting
to stop the test.