Powered Device And Battery Wiring - Bosch B6512 Installation Manual

26 en | Power supply
Figure 6.2: B520 earth ground wiring
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)
Wire to the control panel
When wiring a module to a control panel, use the terminal strip labeled with PWR, A, B, and
COM for SDI2 IN to wire to corresponding control panel SDI2 terminals.
Use 12 AWG to 22 AWG (2 mm to 0.65 mm) wire.
2
Figure 6.3: B520 to the control panel wiring (B5512 shown)
Callout ᅳ Description
1 ᅳ Control panel
2 ᅳ B520 Auxiliary Power Supply Module
3 ᅳ Terminal strip wiring
6.3.5

Powered device and battery wiring

Wire to SDI2 powered devices
When wiring the output of a B520 to a SDI2 module, you can use either the SDI2 OUT terminal
strip labeled with PWR, A, B, and COM to wire to terminals labeled PWR, A, B, and COM on
the next module, or you can use the interconnect cable (included). Wiring the output of a
B520 to a SDI2 device provides power to the device while passing through data between the
control panel and the device.
2017.04 | 15 | F.01U.287.180
PWR A B COM PWR A B COM
3
R
Y
G
B
Installation Manual
Control Panels
1
SDI2 ON-BOARD POINTS
Device Bus
Voltage Ranges
R Y G B
Open 3.7 - 5.0 VDC
Normal 2.0 - 3.0 VDC
Short 0.0 - 1.3 VDC
1 k End of Line Resistors
AUX
1 COM 2 3 COM 4 5 COM 6
- 12 V +
COM AUX R Y G B 1 COM 2 3 COM 4 5 COM
PWR A B COM
Bosch Security Systems, Inc.
C
OUTPUT
B
7 COM 8
6 7 COM 8