Verilink AS2000: The Basics (880-502981-001) Product Manual - Manual (Page 84)

Monitoring and Troubleshooting
5-18 Verilink Access System 2000: The Basics
Figure 5-3 System Fault Isolation Flow
AS2000 Module
Fault Isolation
Check System
Power
Check Local
Power Supply
Correct
Local Power
Check Power
Supply Voltage
Check Module
and CIM
Installation
Reconfigure
AS2000
Notify
Telco
Perform NET
loopback plug test
(red NET LED)
Perform application
equipment loopback
test (red EQUIP or
Data Port LED)
Check application
equipment and
associated cables
Check EQPT Port
With Loopback
Plug
Check Data Port
With Loopback
Test
Replace
Module
Replace
Module
Replace
Module
Replace
Module
Reinstall
Module
Verify
Self Test
Check System
Configuration
No
No
No
No No
No
No
No
No
No No
Yes
Yes Yes
Yes
Yes
Yes
Yes
Yes Yes
Yes
Yes
Are any LEDs
illuminated
Did all modules
pass self test
Is AS2000
configured properly
Are all modules
installed properly
Did module
pass self test
Is AS2000
operating properly
Did system pass
NET loopback
Did system pass
loopback plug test
Did system pass
loopback test
Is local
power providing
correct voltage
Is power
supply providing
correct voltages
End
End
End
End
End
End
If
End
End
End
End
Replace
power supply
Replace
Module