MIC440 Explosion Protected CCTV Camera System| Installation and Operation Manual
MIC-12PSU Power Supply Unit
The power supply provides power for a single MIC440 camera unit from a 9v DC to
29v DC source for installations using low voltage systems.
Dimensions
Power supply enclosure – 225mm (W) x 70mm (H) x 195mm (D)
This is connected as per the MIC-240PSU as shown previously with the exception
of the following changes:-
WARNING: Electrical Danger: Ensure all power is disconnected
before opening or working upon any Power Supply Unit.
Installation must be carried out by suitably qualified persons & all
local safety regulations should be followed.
CAUTION: It is extremely important to observe the correct polarity,
failure to do so will result in the destruction of the DC-DC power
supply.
CAUTION: This power supply was designed for negative earthed
systems only it is not suitable for use with positive earth systems.
This should be fed in to connection HD1 nominally marked as mains input,
connections should be as follows:-
Table G – Power Input wiring connections for MIC-12PSU
Positive
Negative
Earth and Negative
WARNING: The rating of fuse FS2 should be changed to a 2A
quickblow as opposed to the rating shown on the PCB.
Bosch Security Systems
HD1-1
HD1-2
HD1-3
Power Supply Layout and Connections
HD1 – Power Input Connector (screw terminal)
HD2 - Keyboard power connector (demo purposes only, not normally fitted)
HD3 - Composite cable header (Connections to camera head, screw terminal)
HD4 - Telemetry header (Molex Connection)
HD5 - Telemetry header (Screw terminal)
HD6 - Tamper Switch header (Screw terminal)
HD7 – Washer Pump Drive header (Screw terminal)
CN1 - Video out connection header (BNC)
CN2 - Add on card header (plug in)
Figure C – MIC-12PSU Layout
For 12V installations the composite cable wiring is identical to that shown earlier in
this manual on Table D.
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