Technical data

21. If necessary, connect a tamper switch to terminal block HD2.
22. Make the necessary video connections. Feed the coaxial cable of your choice--see the table
below to identify the recommended cable types, maximum distance, and other specifications
for the coax video connection between the MIC power supply and the head-end control
system--through the top-left M12 cable gland (item 1 in the figure “MIC PSU Enclosure, with
cable glands identified”).
Cable Type; Maximum
Distance
RG-59/U; 300 m (1000 ft)
RG-6/U; 450 m (1500 ft)
RG-11/U; 600 m (2000 ft)
Size O.D. between 4.6 mm (0.181 in.) and 7.9 mm
(0.312 in.)
Shield Copper braid: 95%
Central Conductor Standard copper center
23. Crimp the end of the cable with a BNC terminal connector.
24. Connect the Video Out cable to BNC socket CN1.
25. Feed telemetry cable through the bottom-right M12 cable gland (item 4 in the figure “MIC
PSU Enclosure, with cable glands identified”).
26. Connect head-end RS-485 control to terminal block HD5, as indicated in the table below:
PCB Marking
(non-IR PCBs)
Telemetry Signal Name Connection Description / Function Pin Number
RxB Rx + RS485+ to camera 1
RxA Rx - RS485- to camera 2
0V Ground 0V from control room 3
TxA Tx - RS485- to control room 4
TxB Tx + RS485+ to control room 5
Note: The terminal block is positioned with the screw terminals on the left, next to the fuses.
Pins are numbered from top to bottom in that orientation. Non-IR PSU PCBs are marked.
27. If connecting to additional add-on cards (for example, a card for 8-input alarms (MIC-
ALM), and/or a Biphase card (MIC-BP4)), remove the second blanking plug that covers one of
the holes for an M12 cable gland (item 3 in the figure “MIC PSU Enclosure, with cable glands
identified”). Attach the supplied M12 gland. Make the appropriate connections to plug-in
terminal CN2.
Notice!
For installation of the MIC 8-input Alarm Card (MIC-ALM) or Biphase converter (MIC-BP4),
please refer to their respective manuals.
28. After wiring is complete, connect the power supply to the power source.
29. Verify that the following LEDs are lit:
LED Description
LED 2 18 VAC power on to camera
LED 4 Power on for optional heater
38 en | Install the MIC Power Supply Unit (PSU) MIC440 Explosion-protected Camera
2013.11 | 8.1 | Operation Manual Bosch Security Systems, Inc.