Security Escort
Troubleshooting transponders, points, receivers, and alert units | en
105
Robert Bosch (SEA) Pte Ltd
Training Manual
2017.08 | V2.18.1.0 | DOC
Symptoms
Probable Cause
Possible Solutions
Single receiver reporting bad
check sum.
Two receivers on the bus with
the same address ID number.
Check rotary switches on all
receivers on that bus to be
sure there are no duplicate ID
numbers.
Moisture or water on
receiver.
Replace receiver with new
one until the old receiver
dries out. Seal any point
where moisture is entering
the receiver housing.
Length of cable to receiver.
Receiver is mounted over 900
m (3000 ft.) from
transponder.
Reconfigure the bus run to
make sure receiver is within
900 m (3000 ft.) of the
transponder.
Bad splice to receiver.
Check all splices to make
sure cables are tight and not
loose causing high resistance
open.
Defective receiver.
If power is present on BUS+
and PWR+, between 7.5 VDC
and 10.5 VDC on bus and
10.5 VDC and 13.5 VDC on
power replace receiver.
Receiver jamming.
Electrical equipment in area
causing jamming on receiver.
Go to the software dialog
Setup
r
eceiver configuration
.
Increase jamming threshold
by one degree at a time until
jamming stops and receiver
returns to normal. If jamming
persists after increasing level,
relocate receiver or attempt
to identify and minimize the
jamming source.
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