Installation Instructions

Notice!
The SDI2 power terminal (R/PWR) is power limited. The SDI2
terminals are supervised.
SDI2 bus wiring recommendations
Use the following SDI2 bus wiring recommendations for SDI2
installation. The control panel and SDI2 modules use the SDI2
bus to communicate with one another.
You can wire modules via home run, daisy chain, or single level
T-tap anywhere on the SDI2 bus.
7 COM 8
C
OUTPUT
B
1 k End of Line Resistors
Voltage Ranges
ON-BOARD POINTS
3.7 - 5.0 VDC
2.0 - 3.0 VDC
0.0 - 1.3 VDC
Open
Normal
Short
3 COM 4 5 COM 61 COM 2
R Y G B
SDI2
Device Bus
AUX
- 12 V +
TMPR
1 COM 2 7 COM 83 COM 4 5 COM 6
RESET
COM AUX R Y G B
PWR A B COM
B C
OUTPUT
Figure 7.9: SDI2 bus wiring recommendations (B5512 shown)
7.8.1
42 en | System wiring diagrams Control Panels
2015.09 | 08 | F.01U.287.185 Bosch Security Systems, Inc.