Bosch B9512G - Powered Device and Battery Wiring

Control Panels Power supply | en 41
Bosch Security Systems, Inc. Installation Manual 2018.07 | 10 | F.01U.303.996
Callout ᅳ Description
1 ᅳ B520 Auxiliary Power Supply Module
2 ᅳ 14 AWG - 16 AWG (1.8 mm - 1.5 mm) wire
3 ᅳ Ground device (grounding rod or cold water pipe)
Wiring to the control panel
Notice!
Terminal wiring
Use the terminal strip labeled with PWR, A, B, and COM for SDI2 IN to wire to corresponding
control panel SDI2 terminals. Do not use interconnect wiring.
Use 12 AWG to 22 AWG (2.0 mm to 0.6 mm) wire.
SDI2 OUT
SDI2 IN
PWR A B COM PWR A B COM
1
2
3
R
Y
G
B
SDI2
PWR+/R
A/Y
B/G
COM/B
PWR+/R
A/Y
B/G
COM/B
24
25
26
27
28
29
23
26
SDIx
ire
olice
ting
SDI2
PWR+/R
A/Y
B/G
COM/B
PWR+/R
A/Y
B/G
COM/B
25
26
28
29
30
23
27
SDIx
ire
olice
ting
24
SDIx SDI2
MODULE RELEASE
MOD-2
MOD-1
Callout ᅳ Description
1 ᅳ Control panel
2 ᅳ B520 Auxiliary Power Supply Module
3 ᅳ Terminal strip wiring
6.2.5 Powered device and battery wiring
When you wire the output of a B520 to a SDI2 module, the B520 provides power to the
module while passing through data between the control panel and the module.