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Maintenance
If any one or all three LEDs (Power healthy, Communication, and Clock Sync) on the front
panel of the INFORMA PMD-A device are not working, perform the steps mentioned in the
following table for finding the fault in the device and rectification.
Problem Symptom and
Indication
•
Not all the LEDs are
glowing.
Or
•
Only Power Healthy LED
is OFF and all other are
working.
•
No Communication –
Only COMMS LED is
OFF and all other LEDs
on the front panel are
working.
•
Clock sync LED is OFF
and all other LEDs on
the front panel are
working.
Potential Causes
•
Power Supply not
working
•
Motherboard not
working
•
Communication
modules not
working
•
Motherboard not
working
•
Not synchronized
with GPS/RTC
PPS (in master
mode)
•
Not synchronized
with external
master (in slave
mode)
•
Motherboard not
working
135
Corrective Action
Refer to Section 6.4.1 for
initial inspection and
rectification.
1. Ensure that the serial
port and connection
cable pin-out are
compatible.
2. Check the PC baud
rate.
Refer to Section 6.4.2 for
further probing
information
.
Refer to Section 6.4.3 for
initial inspection.
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