Power Supply Module - Bosch Praesideo Service Manual

Praesideo| Service manual | Chapter

7 Power Supply module

•
Fan starts working at 50 degrees (+/- 10 degrees)
•
Green LED on the top indicates that mains is present (after power factor corrector)
•
The Fuse on top of the unit is the DC back-up fuse
•
Not repairable
•
Rear view of powersupply board
4
X1
1
6
X2
FAN
1
connector X1
Pin
1
2
3
4
Fuse
Mains
switch
inlet
15A
DC-
Backup
input
GND
Bosch Security Systems | 2004-28 | 3922 880 62312
Mains present
LED
Definition
PGND
PGND
+58V
+58V
Power factor
Corrector
90-264V
temp
-13V
switch
FAN
100k
INPUTS
connector X2
Pin Definition
1 backup sensing
2 mute
3 -13V
4 NGND
5 +13V
6 +24V
DC/DC
Converter
58V
PGND
DC/DC
Converter
24V/0.5A
en | 14
X1
Output1 58V/12A
PGND PGND
X2
Output 3/4
DC/DC
+13V/-13V
Converter
1.15A
-13/+13 V
Mute =+13/-13V
1.15A
Backup-sensing
Output 2
24V/ 0.5A
NGND
NGND