User`s guide

XSR User’s Guide 59
Chapter 4 Troubleshooting T1/E1 Links
Configuring T1/E1 Interfaces
Figure 7 T1/E1 Alarm Analysis Troubleshooting Actions Flow (cont.)
Receive Remote Alarm Indication
Yes
Does framing on
the port match the
line setting?
Use the following
commands to set
framing:
controller t1 x
framing {SF | ESF}
No
No
No
Yes
Yes
(Yellow alarm) - see Figure 5
Transmit Alarm Indication Signal
Insert external loopback cable
in the port
Are there any
alarms?
Check the
cabling
Power
cycle the
XSR
Connect
the T1/E1
line to a
different
port
Does the
problem
persist?
Perform
loopback
test
Error Events Analysis
Does the
problem
persist?
Perform
loopback
test
Connect
the T1/E1
line to a
different
port
Does the
problem
persist?
Power
cycle the
XSR
(Blue alarm) - see Figure 5
Check the
cabling
This problem is fixed
The port may be
defective
Error Events Analysis
Check the
settings on
the remote
end
Contact your
service/
network
provider
Reconnect the
T1/E1 line to
the original
port
Yes
Yes
No
No
- refer to Figure 7 - refer to Figure 7