TRAC radio design RD300 PDU, Installation And Operational Manual

Page: 10 / 16

a TRAC company
99-438 Issue 05 Page 10 of 16
Fault Finding
Table 5 Fault Diagnosis, may be used to diagnose common faults:
Table 5 Fault Diagnosis
Fault Condition Possible Cause Possible solution
Status Indicator OFF No power to PDU Apply power
Incorrect polarity of PDU power Check polarity.
PDU Faulty Try new unit
Status Indicator GREEN
but blinking RED Normal state after power cycle press reset to clear.
Status Indicator RED Channel is in fault condition Check each channel for fault indication.
Channel Indicator OFF,
but Bias-‘T’ connected Link on connector between PINS
1 and 2 missing Fit link between pins 1 and 2
Channel Indicator RED,
and BIAS-‘T’ connected. Channel is in a fault condition Press reset switch
Swap working channel with faulty
channel.
- If fault follows the BIAS-‘T’
the fault is in the BIAS-‘T’ or
cable, check wiring.
- If fault stays on the channel
PDU may be faulty.
Channel Indicator
RED, NO BIAS-‘T’
connected. Channel was connected,
but has been
disconnected Press reset switch for more
than 5 seconds [till status
indicator goes yellow]