Security Escort
Troubleshooting transponders, points, receivers, and alert units | en
99
Robert Bosch (SEA) Pte Ltd
Training Manual
2017.08 | V2.18.1.0 | DOC
Symptoms
Probable Cause
Possible Solutions
Single transponder in
communication failure.
Transponder not on.
Check power switch.
Wrong transponder address.
Check DIP switch setting on
transponder to correspond
with your transponder data
base setting.
RS-232/SE485 switch
position.
Check slide switch on
transponder to make sure it is
in the SE485 position.
SE485 wiring on transponder. Check to make sure transmit
from transponder goes to
receive of SE485 and receive
from transponder goes to
transmit on SE485 (RX+ to TX
+, RX- to TX-).
Close lightning hit.
Power down transponder and
restart. If this does not work
replace transponder.
Bad transponder.
Replace transponder.
Tab. 7.4:
Transponder communications with SE485 bus
7.3.2
Transponder communication with ProxLink
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