18 en Diagrams

Control Panel

 

 

3.5.1SDI2 Bus Wiring Recommendations

Use the following SDI2 bus wiring recommendations for SDI2 installation. The SDI2 bus is used by the GV4 Control Panel and corresponding modules to communicate with one another. Modules can be connected via home run, daisy chain, or single level T-tapped anywhere on the SDI2 bus. Please reference Figure 2.7 below.

Figure 3.7: SDI2 Bus Wiring

Callout Description

1 Control panel

2 SDI2 module

3 Daisy chained wiring

4 Single-level T-tapped wiring

5 Home run wiring

 

If the voltage at any device is below the minimum, you must add an auxiliary power supply to

 

the system to power these devices.

 

 

i

Notice!

The absolute lowest voltage for the SDI2 devices is 10 VDC at the device terminals when in

 

normal operation, with a fully charged battery on the system.

 

 

 

Maximum cable lengths

 

The following rules must be followed when wiring the SDI2 bus.

 

– The SDI2 bus requires the use of non-shieldedcable from 12 AWG to 22 AWG.

 

– Maximum overall cable length based on the table listed below:

2012.12 02 F.01U.265.462

UL Installation Instructions

Bosch Security Systens, Inc.

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Bosch Appliances D9412GV4 installation instructions 1SDI2 Bus Wiring Recommendations, Maximum cable lengths

D9412GV4 specifications

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