GSM1000 Gigabit Converter
20
14 – Troubleshooting
Prior to performing the following procedures, verify that the LB DIP switches are in
DOWN position (loop-back disable), the LST DIP switches are in Test Mode (Up position)
Perform the same setup at the connected MetroStar module. Disable the SLE.
Problem Indication
Corrective
Action
No power
Main power
LED
PWR not lit
Check that the power supply cable is firmly connected
to the main power supply and rack mount power
source.
Check that the AC input power source is between 100
and 240VAC.
Fiber link not working
(port 1 or port 2)
Link
LED not lit
Verify that the correct fiber optic cables are being
used, i.e. multi-mode or single mode. Check that the
receive fiber is properly connected to the transmit port
of the remote fiber device
AND
the transmit port to
the receive port of the remote device.
The GSM1000/GSM1000/MA devices do not support
Auto-Negotiation in their F/O ports; thus any attached
device should be forced to A/N disabled (1000Mbps
and FDX).
Perform a loop-back test to verify link integrity
If LB test fails, verify that the output power of the fiber
optic port (s) is within manufacturer’s specifications.
Verify that the dB loss of the fiber cable you are
connecting to plus additional losses ( connectors
losses, normally 1,5dB per mated pair; Splice loss
0.3db max and 3db loss for safety margin) is within
the allowed dB budget
No transmit/receive on
F/O port
LED
Act
not lit
Check the status of the various LEDs indications and
F/O Links.
Ensure that the equipment attached to the GSM is
properly configured and operating
MA is not working
MA Active LED not
lit
Verify that the MCM1000S or MCM1000T module is
properly connected to the remote GSM1000/MA
device ( or GSM1010/MA )
Check that the Link LED is lit at both ends.
At the MetroStar management station perform the
following checks:
a. Link status b. Signal Detect status
c. Remote MA device status.
If necessary, you may perform the “ Restore link
default parameters “ command
If the problem persists after carrying out the above procedure, do the following: exchange
suspected GSM1000 with another similar GSM1000, and check connectivity and mode of
operation. If that has solved the problem, send your GSM1000 for repair. If the problem still
persists, there is probably some sort of general network failure. Call your local Fibrolan dealer or
our technical support. (
).
Make sure to provide the following information:
•
Date and place of purchase, from whom, original invoice
•
The serial number and Firmware revision of the GSM1000 unit
•
The serial number of the
MetroStar
™
device and the type of the installed modules.
•
The configuration of the equipment that is connected to the
MetroStar
™
and the
sequence of events leading to the problem.
•
Actions already taken and status files.
•
Software revision levels of the installed equipment.
