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D9112 Operation & Installation Manual
Page 86
74-06144-000-C 2/96
© 1993-1996 Radionics
Fire and Fire/Burglary Systems
To comply with UL 985 and 864 listing
standards 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 1.4A (1400 mA) provided by the
primary power supply (rectified AC). If
current draw for the system exceeds 1.4A,
connect a D8132 Battery Charger Module to
the D9112. The D8132 provides an
additional 1.2 Amps of rectified AC power.
Combined current draw must never exceed
2.0A.
Battery Discharge/Recharge Schedule
Discharge Cycle
13.9 VDC Charging float level
13.8 VDC Charging Status LED on
12.1 VDC Low Battery & AC fail reports
if programmed, Low Battery
LED on
10.2 VDC Battery load shed
(processing functions
continue if AC is present)
Recharge Cycle
AC ON Load shed relay resets
battery charging begins,
battery trouble and AC
restoral reports sent.
13.7 VDC Battery restoral report sent,
Low Battery LED off
13.9 VDC Charging Status LED off,
battery float charged
Minimum Operating Voltage
10.2 VDC
Specifications
Voltage Input
Primary Power Supply 1 2
16.5 VAC 40 VA class 2 plug-in transformer
(D1640)
Secondary Power Supply 4 5
12 VDC 7 Ah sealed lead acid rechargeable
battery. The D9112 supports a maximum of
two 12 VDC 7 Ah batteries using the D122
Dual Battery Harness.
Current Requirements
Panel - 500 mA
See the
D9112 Standby Battery and Current
Rating Chart
for the current requirements of
other system components.
Power Outputs
Continuous Power Outputs 3 24 32
1.4A maximum at 10.2 VDC to 13.9 VDC
(continuous supply) total for all devices and
outputs supplied at terminals 3,24, and 32,
connectors J2 and J4.
Alarm Power Output 6 7
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 the
Relays
section of the
D9112
Program Entry Guide
(74-06145-000)
Switched Aux Power 8
1.4 A maximum at 10.2 VDC to 13.9 VDC
output. Continuous output is interrupted by
Sensor Reset (CMD 47) or alarm verification
depending on programming. See the
Relays
section of the
D9112 Program Entry Guide
(74-06145-000)