
D7212GV2 | Operation and Installation Guide | Appendix A: System Wiring Diagrams, Issue A
54 Bosch Security Systems, Inc. | 2/07 | F01U003805-02
Figure 30: D7212GV2, Input Points and Peripheral Devices
Sw. Aux Pwr
Zone B
Zone A
Pnl Common
Pnl Common
Loop B-
Loop A-
Loop B+
Loop A+
Earth Ground
10
9
5
4
3
8
2
1
7
6
Aux Power
Zone B
Zone A
Common
Loop B-
Loop A-
Loop B+
Loop A+
Earth Ground
10
9
5
4
3
8
2
1
7
6
11
12
13
Loop A+
Loop A-
Loop B+
Loop B-
EARTH GROUND
COMMON
BATTERY NEGATIVE ONLY
Maximum Charging
Current 1.4 Amps.
BATTERY POSITIVE ONLY
RELAY A
RELAY B
RELAY C
+ AUX POWER
CLASS 2 TRANSFORMER
16.5 VAC 40 VA 60 Hz
Model D1640
Internally Fused - Do Not short
Requires Unswitched Outlet
Do Not Share With Other Equipment
GROUND FAULT DETECT
Enabled
Disabled
VOLTAGE RANGES
Open 3.7 - 5.0 VDC
Normal 2.0 - 3.0 VDC
Short 0.0 - 1.3 VDC
1211 13
Point 1 Point 2
1514 16
Point 3 Point 4
1817 19
Point 5 Point 6
2120 22
Point 7 Point 8
+
-
D130
TELCO
RING
TIP
PHONE LINE
SEIZED
PHONE
LED
RED
ON when
communicating
OFF when idle
PHONE LINE SEIZED
TIP
RING
TELCO CORD
MODEL D161
1
2
6
3
4
5
PROGRAMMABLE
ALARM OUTPUTS
Terminals
SWITCHED AUX
and
67
Terminal
8
D7212GV2
1 - (Optional) For 24 V Applications, use a UL Listed
24 VDC power supply with a D130 Relay Module.
Refer to the D130 Installation Instructions
(P/N: 74-06262-000) for correct wiring
requirements.
2- D125B Powered Loop Interface Module
3 - To UL Listed two-wire smoke detectors.
Refer to Two-Wire Smoke Detectors in the
D7212GV2 Approved Applications Compliance
Guide (P/N: F01U003806) for compatible two-
wire smoke detectors.
4 - P105F 1 k
Ω
EOL resistor (P/N: 14-03130-
004), suitable for non-powered initiating and
supervisory devices such as pull stations, heat
sensors, and valve tampers.
5 - P105BL1 1k
Ω
EOL resistor (P/N: 16179B), for
typical burglar alarm applications
6 - D129 Dual Class A Initiation Circuit Module,
provides optional Waterflow Alarm Retard
feature. Not suitable for two-wire smoke
detectors.
Use zero retard for the D129, except for water-flow devices.
All external connections except Terminal 5 (battery positive) are power limited.
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