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DIAGRAM SHOWING A BASIC CCTV INSTALLATION INCORPORATING A BH259 UNIT
ADJUSTMENT
If the 12V supply is connected and turned on when you connect the signal cables the unit will
automatically detect and equalise the video signal and the yellow LED labelled ‘SET’ will be
lit.
If for some reason this does not happen simply gently press and hold down for about three
seconds the button marked ‘AUTO SETUP’. The BH259 will then automatically equalise the
video signal. When the video signal has been adjusted and locked the yellow LED labelled
‘SET’ will be lit. The BH259 unit will now be correctly adjusted for the cable run.
OPERATION
Once the BH258 unit has been setup it is not normally necessary to make any further
adjustments for the life of the installation provided there are no significant changes to the
cable run or associated equipment.
If you change the length of the cable run or use other equipment it may be necessary to
press and hold the ‘AUTO SETUP’ button for 3 seconds. This will cause a re-equalisation of
the cable run and equipment.
After a power outage the unit will automatically re-equalise without the need for any user
intervention.
