Technical data

Fuse Ratings
The MIC PSUs for MIC440 cameras have four (4) off 20 mm fuses (numbers 13 - 16 in the
figure “Layout of MIC-240PSU-2 and MIC-115PSU-2”) 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 Type Rating for 240 V
Primary
Rating for 115 V
Primary
Rating for 24 V
Primary
FS 1 MIC camera
protection
Glass 1.6 A anti-surge (T) 1.6 A anti-surge (T) 1.6 A anti-surge (T)
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)
Alarm Inputs
The table below identifies the number of alarm inputs and outputs available in MIC power
supply units, depending on whether or not an 8-input alarm card is installed.
MIC PSU 8-input Alarm Card
(MIC-ALM)?
Number of
Alarm Inputs
Number of
Alarm Outputs
MIC-24PSU-2,
MIC-115PSU-2,
MIC-240PSU-2
No 1 0
Yes 8 2
Table 11.1: Number of alarm inputs and outputs in MIC PSUs
Layout of MIC Power Supply Units (PSUs)
Layout of MIC-240PSU-2 and MIC-115PSU-2
The figure below displays the layout of the PCB in the MIC PSUs for non-IR cameras, with call-
out numbers to the side of or below the connection/terminal ID or the terminal, and ’on’ the
fuses. The table below the figure identifies the connections.
11.3
11.4
11.5
MIC440 Explosion-protected Camera Install the MIC Power Supply Unit (PSU) | en 31
Bosch Security Systems, Inc. Operation Manual 2013.11 | 8.1 |