Specifications

3 - 22
(3) Checking the test result
The T.PASS LED of the network module flashes at approximately 0.5s intervals.
The T.PASS LED flashes when the test is normal, and the ERR. LED flashes
when an error occurs.
[Normal test result]
Test complete
Switch position
Display section
Before test
(during RESET)
Test is completed
when T.PASS
flashes 20 times
(approximately 10s).
During test
(during STOP)
[Abnormal test result]
Switch position
Display section
Before test
(during RESET)
Test complete
Lighting of the T.PASS
LED and flashing of
the ERR. LED indicate
an error.
Or L. ERR.
L
During test
(during STOP)
<Possible causes of errors>
A loopback was executed because of a wiring error, a faulty optical fiber cable
or abnormality was detected in the other stations.
1) If wiring is incorrect
Check the connections of IN and OUT connectors and other connectors.
If an incorrect connection is found, connect properly.
2) If an optical fiber cable is faulty or the other stations are abnormal
Replace the defective cable or module.