Bosch Appliances MIC612 installation manual 4.4.1, Earth Link on PCB, 4.4.2, Fuse Ratings

MIC612 Thermal Camera Installation en 21

NOTICE!

Only use the specified power supplies with the MIC612.

4.4.1	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:
	– 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.

4.4.2	Fuse Ratings
		The MIC PSUs for MIC612 cameras have four (4) off 20 mm fuses (numbers 13 - 16 in
		Figure 4.3) 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	Fuse Function	Type	Rating for 240 V		Rating for 115 V		Rating for 24 V
		ID				Primary		Primary		Primary
		FS 1	MIC camera	Glass	1.6	A anti-surge (T)	1.6	A anti-surge (T)	1.6	A anti-surge (T)
			protection
		FS 2	Primary protection	Glass	200 mA quick blow		500 mA quick blow		2.5	A quick blow
		FS 3	Heater protection 1	Glass	1.6	A anti-surge (T)	1.6	A anti-surge (T)	1.6	A anti-surge (T)
		FS 5	Heater protection 2	Glass	1.6	A anti-surge (T)	1.6	A anti-surge (T)	1.6	A anti-surge (T)

Bosch Security Systems, Inc. Installation Manual F.01U.249.416 2.0 2012.09