7200 SERIES
ALU
ANALOG LOOP UNIT
DESCRIPTION
The Analog Loop Unit (ALU) provides the 7200 Series Fire Alarm Control panel with the ability to communicate with
analog addressable initiating devices and control points. It mounts in any available module position.
Each ALU provides two (2) signaling line circuits, each of which can be wired similar to NFPA Style 6 or 7 (Class “A”) or
Style 4 (Class “B”). Each of these circuits can address up to 197 points, (99 analog sensors and 98 monitor/control points for
a maximum of 394 points per ALU. Up to fifteen (15) ALU units can be accommodated by one 7200 Series control panel.
Each signaling line circuit also monitors the sensitivity and automatically tests all connected analog smoke sensors. The
drift compensation software of each ALU unit overcomes the effects of aging or environment on sensor sensitivity, providing
a dependable alarm threshold. “Dirty” and “Very Dirty” indications are made when the sensor drifts beyond acceptable limits.
Sensors can automatically change sensitivity within a specific time to be matched to their real-life environment. Signal
processing for alarm verification is also available to provide a greater immunity to false alarms.
The ALU signaling line circuits each have a red “ALARM” LED and a yellow “TROUBLE” LED, along with a circuit
“DISCONNECT” user switch, for individual circuit control and programming functions.
A pluggable terminal block is provided with each unit for the connection of field wiring. This block will accommodate wire
sizes up to 12 AWG.
The ALU will accommodate FCI approved, UL Listed and FM Approved model ASD-I, ASD-P, ATD series sensors, AMM
series monitoring modules, and AOM series control modules.
The ALU unit occupies a full-size space in the cabinet.
TECHNICAL INFORMATION
Voltage
Supervisory current
Alarm current
Short circuit current
24 VDC (nominal)
0.065 amp. maximum (supervisory)
0.085 amp. (alarm)
0.75 amp. max. (short circuit)
ORDERING INFORMATION
Part No.
1120-0503
Model
ALU
Description
Analog Loop Unit
Specifications are provided for information only and are believed to be accurate. However, no responsibility is assumed by Fire Control Instruments, Inc. for their use.
Specifications subject to change without notice.
© 1997 All Rights Reserved
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9020-0327/Ver. 1.4
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