Ethernet - Motorola Canopy 300 Mbps Backhaul User Manual

If neither is illuminated then there is no voltage on the power wires to the ODU.
•
Check that the mains power is connected and switched on.
•
Check that the lamp illuminates if the ODU connector is disconnected at the Canopy
150/300 PIDU (Remove the 150/300 PIDU cover).
If it does illuminate then either the ODU is drawing too much current, or the
power wiring to the ODU is short circuit or the PSU is supplying insufficient
power. The likely fault can be determined by removing the jumper (J906), found
inside the removable cover of the 150/300 PIDU, and measuring the current
taken with an ammeter placed across the 2 jumper pins. This is normally 10mA
without the ODU connected and 300mA to 1A when the ODU is connected.
If it does not illuminate then recheck that power is applied to the Canopy 150/300
PIDU by measuring the voltage across +55V and 0V pads inside the removable
cover in the 150/300 PIDU. Check that the 150/300 PIDU is not short circuit by
measuring the impedance across the Power connector. Is the lamp faulty?

10.1.2 Ethernet

The Ethernet LED is driven from the ODU processor and thus is capable of informing you of
many conditions using different flash sequences. If the Ethernet indicator does not illuminate
at all there are four possible conditions.
•
There is no power reaching the ODU because of a wiring fault
•
The ODU is faulty
•
The Canopy 150/300 PIDU is faulty
•
The Ethernet network side is faulty
Look at the following table to check the LED response for power up, disconnect the power
and reapply and note what happens.
Differentiating between 1-3 and 4 can be achieved by removing the power for 1 second.
Watch the Ethernet indicator for 1 minute, if it never flashes then the problem is 1-3. Take the
jumper (J906) out of the Canopy 150/300 PIDU and check the current taken by the ODU. This
should be 300mA to 1A when starting through to running normally.
If the Ethernet indicator flashes to begin with but then stops flashing then ODU is powered
and software loaded but Ethernet connectivity has been lost between the ODU and the users
connected equipment. All Ethernet connections should be rechecked.
Issue 1.1 April 2006 Page 118