Installation guide
EN | 61
D9124 | Operation & Installation Guide |
Bosch Security Systems | 11/03 | 39352E
Appendix B: D91422 24 VDC Power Supply
1 - Supervision relay configuration DIP switch 9 - Auxiliary power outputs
2 - AC power LED (green) 10 - Remote status LED connector
3 - Power supply trouble LED (red) 11 - Covered 110 VAC connection
4 - Power output status LED (green) 12 - Covered 110 VAC fuse F1
5 - Control panel output connector 13 - D1601 transformer connector
6 - Switched output selection jumpers 14 - 16.5 VAC 40 VA power to control panel
7 - Switched output control 15 - Battery connector
8 - Supervision relay output
Figure 29: D9142 Power Supply
1
HOT
2
NEUT
3
GND
2
FCUT
1
N/O
3
NO
4
COM
5
NC
6
+OUT1
7
-OUT
9
-OUT2
8
+OUT2
NO AC
NO ACFUSE
NO DC
BAT TEST
LOW BATT
S1
J3
J7
J8
XFRM
XFRM
J1
Off On
J5
15
11
12
13
14
1
2
3
4
5
6
7
8 9 10
Appendix B: D9142 24 VDC
Power Supply
B.1 D9142 Default Setting Features
B.1.1 Description
The D9142 is a supervised, 4 A, 24 V power supply that
charges standby batteries and supplies power to auxiliary
devices.
The D9142 connects to a dedicated circuit breaker. The
120 VAC input terminals on the D9142 are covered for
added safety. The D1601 transformer is fused with a
thermal non-resettable fuse. The transformer plugs into
the D9142 using an input/output cable and provides AC
power for the D9142 and a 16.5 VAC 40 VA output for
powering the control panel.
D9142 supervises all stages of power for detection in
case of a fault.
You can select which trouble events activate a
supervision relay output. The relay output allows for a
remote indicator of general trouble with the D9142 AC
power, battery, or power output.
Battery Supervision
The D9142 offers low battery and missing battery
supervision for both batteries.
When the battery drops between 22 VDC and 24 VDC
or the battery is disconnected, the red Low Battery LED
lights and the power supply triggers the Trouble Relay
output.
When battery voltage returns between 24.2 VDC and
26.5 VDC, the Low battery LED turns off. The D9142
resets the Low Battery Trouble output.
D9142 Status LEDs
The LEDs on the left side of the D9142 (Figure 29)
indicate the:
• green LED lights when AC power is connected and
applied to the D9142. Normally, this LED is on.
• red Power Supply Trouble LED lights when D9142
senses trouble. Normally, this LED is off.
• green Power Output Status LED lights when power
output is powered on. The LED turns off when the
output power is off.