Bosch D7212GV2 Instalační příručka stáhnout pdf (Strana 47)

D7212GV2 | Operation and Installation Guide | 11.0 Arming Devices

Bosch Security Systems, Inc. | 2/07 | F01U003805-02 47

Wire Limits for Individual Devices

Refer to the installation instructions for each device for

wire length specifications.

Extra Power for More Keypads

The D1255 Command Center draws 104 mA when

idle. It draws 206 mA with the keys lit and the sounder

activated. Review Section 6.0 Power Outputs on page 25

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 22 shows the D8132 powering keypads in a

stand-alone configuration.

For UL Certificated accounts, use a UL Listed auxiliary

12 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 22

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 D7212GV2 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.

Figure 22: Power at Keypads

1 - To control panel

2 - +12 VDC

3 - Data

4 - Common

5 - D8132 or external power supply

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 59 60

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