MIC412TI and MIC412TF Camera | Installation and Operation Manual AAA EN | 15 Bosch Security Systems Issue 8 CHAPTER 3 Power Supply Installation
Note: Refer to the MIC Series Power Supplies Installaion Manual for detailed
power supply information.
MIC-24PSU-UL, MIC-115PSU-UL, and MIC-240PSU-UL
The power supply provides power for a single MIC412 camera unit from either a 24
VAC source (MIC-24PSU-UL), 240 VAC source (MIC-240PSU-UL) or a 115 VAC
source (MIC-115PSU-UL).
In addition the unit provides all the terminations required to connect a MIC 412
camera to third party equipment.
A second independent 12 V (600 mA) power supply is also included to drive any
internally fitted optional interface cards.
Dimensions (W x H x L):
Power supply enclosure: 240 x 90.5 x 160 mm (9.5 x 3.6 x 6.3 in.)
The Power Supply Unit provides all the support functions for connecting the
camera to third party equipment. It comprises of:
1. A weather-resistant (IP65) cast-aluminium box pre-fitted with three (3) cable
glands.
2. A power supply for the MIC 412 camera.
3. Provision for driving various interface cards mounted internally to the power
supply box, for example an alarm interface card (non-IR power supplies only).
4. Provision for a signal interface card (BP-3 or BP-4) to connect telemetry to
Bosch Biphase equipment.
5. Screw termination of all composite, telemetry and ancillary cables in the box.
6. Earth isolation and termination within the unit to correctly control video
earthing and to prevent earth loop.
PCB Earth Link
The PCB has one link option next to HD1 to allow the power supply to be set up for
different earthing schemes: The Earth Link should be broken if there is a separate
connection between video screen and earth. This usually occurs on copper
connected systems where all the copper video coaxes are taken back to the
control room to be connected to a central earth point. If fibre optics or other indirect
connections are used to get data and video to and from the control room then the
earth link should be left intact provided it is the only camera end earth reference
point.
Power Supply Layout and Connections
The power supply PCB has the following connections as shown on Figure A:-
HD1 – Power Input Connector (screw terminal)
HD2 - Tamper Switch header (screw terminal)
HD3 - Composite cable header (Connections to camera head, screw terminal)
HD4 - Telemetry header (molex connection)
HD5 - Telemetry header (screw terminal)
HD6 - Washer pump header (screw terminal)
HD8 - Keyboard power connector (demo purposes only, not normally fitted)
CN1 - Video out connection header (BNC)
CN2 - Add on card header (plug in)
Figure A and the following tables show the connect ions required.
WARNING: All external wires for installation applications
must be routed through a permanently earthed metal
conduit.