Bosch Appliances D9412GV3 Installation, Keypad Connections, Wire Limits for Individual Devices

D9412GV3/D7412GV3 Operation and Installation Guide 11.0 Arming Devices

11.2.2 Installation

Refer to the keypad installation manuals for installation and mounting instructions. Keypads connect to the control panel in parallel (Table 20).

Table 20: Keypad Connections

D9412GV3/		Keypad
D7412GV3	Function	Wire		Function
Terminal		Color
32*	POWER +	Red		+12.0 VDC
31	DATA BUS A	Yellow		Data
30	DATA BUS B	Green		Data
29	COMMON	Black	Common

*Connect with at least 1.5 m (5 ft.) of 0.8 mm (22 AWG) wire (4.3 m [14 ft.] of 1.2 mm [18 AWG] wire).

Switching the Green and Yellow Wires Affects Other Keypads: Connecting the green wire incorrectly from the keypad to Terminal 31 and the yellow wire to Terminal 30 causes other keypads connected to the control panel to go blank or to sound random beep tones.

You can connect devices to the data bus (Terminals 30 and 31) by parallel wire run from the control panel to each device, wire from device to device, or a combination of the two using a maximum of 4572 m (15000 ft) of 0.8 mm (22 AWG) wire for all devices connected to the SDI Bus combined.

Wire Limits for Individual Devices

Refer to the installation instructions for each device for wire length specifications.

Extra Power for More Keypads

The D1255 and D1255B Keypads draw 104 mA when idle. They draw 206 mA with the keys lit and the sounder activated. Review Section 6.0 Power Outputs on page 26 to determine the total power output requirements for the system.

One or more D8132 Battery Charger/Power Supply Modules can be added for the number of keypads used. Figure 28 on page 57 shows the D8132 powering keypads in a stand-alone configuration.

For UL Certificated accounts, use a UL Listed auxiliary 12.0 VDC or 24 VDC regulated, power- limited power supply for Fire Protective Signaling Units and Commercial or Residential Burglar Units. The D8132 is not UL Listed as a stand-alone power supply.

The control panel and the D8132 (or other power supply) must share

COMMON.

Figure 28 on page 57 shows the common form of the D8132 Module connected to the common on the keypad and the common on the control panel. Any stand- alone power supply, powering any device connected to the control panel, must also be connected to a common terminal on the control panel.

If using the ground fault detection capability on the D9412GV3 and D7412GV3 Control Panels with an external power supply, ensure that the external selected power supply isolates its earth ground connection from the negative side of the auxiliary power output. External power supplies that do not isolate earth ground can cause ground fault conditions on the control panel.

Bosch Security Systems, Inc. 10/10 F01U143070-03 56