Bosch B6512 Installation Manual page 79

Control Panels
SDI2
Device Bus
R Y G B
AUX
1 COM 2
- 12 V +
COM AUX R Y G B 1 COM
PWR A B COM
Figure 18.1: SDI2 bus wiring recommendations (B5512 shown)
Callout ᅳ Description
1 ᅳ Control panel
2 ᅳ SDI2 device (module or keypad)
3 ᅳ Daisy chain wiring
4 ᅳ Single-level T-tapped wiring
5 ᅳ Home run wiring
Notice!
There can only be a difference of 2 volts (maximum) between the AUX power terminals of the
control panel or power supply and the device for the modules and keypads to work properly
under all conditions.
Bosch Security Systems, Inc.
ON-BOARD POINTS
Voltage Ranges
C
Open 3.7 - 5.0 VDC
OUTPUT
Normal 2.0 - 3.0 VDC
B
Short 0.0 - 1.3 VDC
1 k End of Line Resistors
3 COM 4 5 COM 6 7 COM 8
2 3 COM 4 5 COM 6 7 COM 8
Installation Manual
System wiring diagrams | en
2018.07 | 16 | F.01U.287.180
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