User's Manual

5.8GHz PDH User’s Manual
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Appendix J: ODU Troubleshooting Guide
If the equipment is NOT functioning properly after installation, please check the
following conditions:
I. Local end Equipment not found in Arbeit.
A. IDU - Is the red or green indicator light ON?
1. Check if the DC connector is loose.
2. If NOT, use a voltmeter to check if the DC output is -48V.
3. If there is no problem as define above, please contact us.
B. ODU interface connection.
The ODU has two
N-type connectors: Antenna IF Port and IF Port.
Check if all the connections are properly connected.
C. ODU power indicator.
When the ODU is properly connected to the IDU, the IDU’s IF cable transmit three
IF
signal and DC -48V. If the light is not glowing, use a voltmeter to check if the coaxial
cable connection is working normally.
Red light indicates NO CONNECTION to PDH.
Green light indicates CONNECTION to PDH.
II. Other equipments not found in Arbeit.
1. Check if the other equipments’ Channel that need to be linked have the same setting.
2. Check if any critical alarm has occurred.
3. The frequency band may be occupied by other user. Try to change for free Channel.
4. Check if Arbeit’s IDU ID conflict with the other equipments’ similar setting.
5. Check if Arbeit’s IDU Link ID is same as that of the other equipments that need
linking.
III. Unable to simultaneously monitor multiple set of equipments from the
same PC.
Check if the NMS1 & NMS2 transmission line’s connection mode is correct.
IV. Cannot execute Loopback test.
1. Check if the IDU LED is OK. Green glow indicates normal.