Installation Instructions

Callout ᅳ Description
3 ᅳ Terminal strip wiring
4 ᅳ Interconnect wiring (P/N: F01U079745)
Wire to batteries
Wiring the B520 to BATT 1 is required for proper operation of
standby power for the B520 module. Wiring the second battery
(BATT 2) is optional. If a B520 is configured for two batteries as
the standby power source, then BATT 2 is also required for
proper operation. BATT 2 must have the same capacity and
rating as BATT 1. Maximum standby power cannot exceed 36 Ah.
BATT 1
BATT 2
R
B
R B
+ -
1
23
+ -
Figure 4.5: B520 BATT terminals wiring
Callout ᅳ Description
1 ᅳ B520 Auxiliary Power Supply Module
2 ᅳ Battery 2 (BATT 2) - (12 V nominal lead acid)
3 ᅳ Battery 1 (BATT 1) - (12 V nominal lead acid)
Control Panels Power supply | en 27
Bosch Security Systems, Inc. 2015.09 | 08 | F.01U.287.185