D7212G Operation and Installation Guide
Page 14 © 2003 Bosch Security Systems4998138544C
D7212G
Overview
2.2 Specifications
(The black and white circles with numbers indicate the specific panel terminal.)
Primary:
16.5 VAC 40 VA class 2 plug-in
transformer (D1640)
Voltage Input
(Power Supply)
Secondary:
Sealed lead-acid rechargeable (12
VDC, 7 Ah or 12 VDC, 17.2 or
18 Ah) battery. The panel
supports a maximum of two 12
VDC, 7 Ah batteries using the
D122 Dual Battery Harness or
two D1218 (12 VDC, 17.2 or 18
Ah) batteries using a D122.
Current Requirements
Panel : 500 mA alarm, 200 mA idle
See Section 4.1 Current Rating Chart for Standby Battery Calculations in the D7212G
Approved Applications Compliance Guide (P/N: 4998138560) for the current draw
requirements of other system components.
All external connections are inherently power-limited except battery terminals.
Continuous Power
Outputs
1.4 A maximum at 10.2 VDC to
13.9 VDC (continuous supply)
total for all devices and outputs
supplied at Terminals 3 and 32
and at the Programming
Connector.
Alarm Power
Output
2.0 A maximum at 10.2 VDC to
13.9 VDC output. Output may
be steady or one of three pulsed
patterns depending on
programming. See Relays in the
D7212G Program Entry Guide
(P/N: 4998138538).
Switched Aux Power
1.4 A maximum at 10.2 VDC to
13.9 VDC output. Continuous
output is interrupted by Sensor
Reset or alarm verification
depending on programming. See
Relays in the D7212G Program
Entry Guide (P/N: 4998138538).
Power Outputs
Fire and
Fire/Burglary
Systems
To comply with UL 985 listing standard for fire alarm systems
(effective March 1, 1989), the total combined continuous and
alarm current draw for the system
during alarm conditions
must be limited to 1.4 A (1400 mA) provided by the primary
power supply (rectified AC). If current draw for the system
exceeds 1.4 A, remove connected devices until the current draw
falls below 1.4 A, then connect the removed devices to a D8132
Battery Charger Module or to an external power supply (see
Figure 17 on page 54).
Minimum Operating
Voltage
10.2 VDC
SDI Bus SDI Bus A (+):
SDI Bus B (-):
9 VDC (15000 ft. [4572 m] max.)
9 VDC (15000 ft. [4572 m] max.)
Table 4: Specifications
