ECI XDM-300, Installation And Maintenance Manual

Page: 205 / 266

XDM-300 Installation and
Maintenance Manual Maintenance
417006-2311-0H3-A00 ECI Telecom Ltd. Proprietary 4-15
Table 4-5: General troubleshooting procedures for optical transceiver plug-ins
No. Symptoms Probable cause Corrective actions
1 Green
transceiver
state indicator
is off.
The corresponding
optical transmitter
may have been
turned off by the
ALS function (see
note below). 1. When available, press the laser-on pushbutton of the
ECU300/ECU300-F to activate the corresponding
laser.
2. If the problem persists, the laser automatically turns
off again after a few seconds. Check that all the fibers
are properly connected to the corresponding optical
transceiver.
3. Replace the transceiver if the problem is not corrected
after the transceiver is reinserted.
Test equipment is
connected to the
monitoring
connector of the
corresponding
plug-in. 1. For plug-in transceivers with monitoring connector:
the test equipment is connected to the monitoring
connector. This indication is provided for
identification purposes, and does not necessarily
indicate a malfunction. 2 Transceiver
state indicator
lights in red.
Defective
transceiver. 1. Disconnect the fibers connected to the transceiver and
remove it.
2. Reinstall the transceiver in its position, making sure to
fully engage its connector to the mating card
connector.
3. Replace the transceiver if the problem is not corrected
after the transceiver is reinserted.
N
OTE
:
An optical port with ALS capability turns off its
transmitter when the corresponding receive signal is lost.
Turning the transmitter off may cause a chain reaction, which
turns the optical signals off in a whole section of the network
and generates a large number of alarms.
As a result, it may be difficult to identify the real cause of the
problem, and you may need to use the management station
log records to identify the port.
Table 4-6: Troubleshooting procedures for electrical interface modules
No. Symptoms Probable cause Corrective actions
Defective indicator Press the LED TEST pushbutton on the
ECU300/ECU300-F and check that the indicator lights. If
not, replace the card/module. 1 Green AC
indicator is
off.
Defective module 1. Remove the module and wait a minute before
reinserting it. Make sure that you fully insert the
module in its slot.
2. If the AC indicator does not turn on after reinsertion,
replace the module.
2 Red FL
indicator does
not turn off
after software
download (this
occurs after
power-on and
resetting).
Defective module 1. Remove the module and wait a few minutes before
reinserting it to reset. Make sure the AC indicator
turns on after the module is reinserted.
2. The FL indicator must flash while software is
downloaded to the module. Wait until the software
download ends and check that the FL indicator turns
off.
3. If the FL indicator turns on again, replace the module.