Installing The Mic Power Supply Unit (Psu); Earth Link On Pcb; Fuse Ratings - Bosch MIC612 Installation Manual
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Also See for MIC612:
- Operation manual (94 pages) ,
- Installation manual (80 pages) ,
- Brochure & specs (9 pages)
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MIC612 Thermal Camera
WARNING!
To prevent water from penetrating the composite cable connector threads, the 25 mm thread
should be sealed at final installation using PTFE tape (not supplied). Alternatively, a suitable
sealant may be liberally applied to the thread prior to final tightening.
4.3
Installing the MIC Power Supply Unit (PSU)
Each MIC power supply unit (PSU) provides all of the connections needed for power, video,
and telemetry for a single MIC camera. Each MIC PSU has CE and FCC approval and has a
cast-aluminum enclosure that is weather-resistant (rated IP65). Features include:
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Each MIC PSU ships with the following parts:
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MIC612 cameras can use the MIC-240PSU-2 power supply (a 230 VAC source) or the MIC-
115PSU-2 power supply (a 115 VAC source). The dimensions (H x W x D) of the enclosures
are: 90 x 260 x 160 mm (3.54 x 10.24 x 6.3 in.). The weight is 3.2 kg (7.1 lb).
4.3.1
Earth Link on PCB
The printed circuit board (PCB) has one Earth Link option, near terminal block HD1, to allow
the PSU to be set up for different earthing schemes:
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4.3.2
Fuse Ratings
The MIC PSUs for MIC612 cameras have four (4) off 20 mm fuses (numbers 13 - 16 in
Figure 4.1) in fuse holders. The ratings for these fuses are fixed on the low voltage secondary
side but change with input voltage on the high voltage primary side. The following table shows
the fuse values that should be fitted to provide proper protection for the MIC-240PSU-2 and
MIC-115PSU-2 power supplies. Note: FS 4 does not exist.
Fuse ID Fuse Function
FS 1
FS 2
FS 3
FS 5
Bosch Security Systems, Inc.
A provision for driving various optional interface cards mounted internally to the MIC
power supply enclosure (for example, an 8-input alarm card (MIC-ALM))
A provision for a signal interface card (MIC-BP4) to connect telemetry to Bosch Biphase
equipment
Screw termination of all cables (composite, telemetry, and ancillary) into and out of the
enclosure
Earth isolation and termination within the unit to control video earthing correctly and
thus prevent earth loops
Three (3) M12 cable glands for telemetry, video and ancillary equipment
One (1) M16 gland for connection of the shielded composite cable to the MIC camera
One (1) 1/2 in. NPT cable gland for the power cable connection
One (1) 1/2 in. NPT and one (1) M12 blanking plug
If there is a separate connection between video screen and earth, the Earth Link should
be broken. This usually occurs on copper-connected systems where all of the copper
video coaxes are taken back to the control room to be connected to a central earth point.
If fiber 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, as long as it is the only
camera-end earth reference point.
MIC camera protection Glass 1.6 A Anti surge (T)
Primary protection
Heater protection 1
Heater protection 2
Installation Manual
Type Rating for 240 V Primary Rating for 115 V Primary
Glass 200 mA quick blow
Glass 1.6 A Anti surge (T)
Glass 1.6 A Anti surge (T)
Installation | en
1.6 A Anti surge (T)
500 mA quick blow
1.6 A Anti surge (T)
1.6 A Anti surge (T)
F.01U.249.416 | 1.1 | 2012.03
19
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