MIC412TI and MIC412TF Camera Installation and Operation Manual
CHAPTER 3 Power Supply Installation
Note: Refer to the MIC Series Power Supplies Installaion Manual for detailed power supply information.
MIC 412TI and MIC 412TF Power Supply Units
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
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.)
WARNING: All external wires for installation applications must be routed through a permanently earthed metal conduit.
The Power Supply Unit provides all the support functions for connecting the camera to third party equipment. It comprises of:
EN 15
1.A
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
4.Provision for a signal interface card
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 connections required.
Bosch Security Systems | Issue 8 |
