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Sensormatic
SENSORVISION SYSTEMS
Video / Dome Control But Status Incorrect
What to check.
1.
Dome status.
2.
Data at J-Box.
3.
Data from dome to J-Box.
Q-22
THE WORLD LEADER IN LOSS PREVENTION
What to do.
Check the dome # in question for the correct
dome type and condition. If the dome # is
incorrect, reset the dome.
Disconnect all domes from the J-Box except
the problem dome. Use a data tester to test
the data line out of the J-Box. Ensure that the
LED status indicator shows good data. If the
data tester indicates bad data, check the
wiring path back to the control box for
improper connections.
Use a data tester to test the data at pins 1
(data Lo) and 2 (data Hi) of P4 on the RS422
interface board. If data is not present, replace
the board.
If that does not solve the problem, replace the
CPU board. If replacing both boards does not
solve the problem, unplug the slip-ring
connector at JP4 from the CPU board to
ensure that the eyeball connection is not
loading down the system. If this does not solve
the problem, replace the chassis.
NOTE: Testing a chassis at a known working
location will isolate a bad chassis or a bad
connector/cable/J-Box. If a working dome fails
in the bad dome location, the problem is with
the connector/cable/J-Box.
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