Data Sheet

7200 SERIES
DSU
DUAL SIGNAL UNIT
DESCRIPTION
The Dual Signal Unit (DSU) provides the 7200 Series fire alarm control panel with a four (4) ampere auxiliary power supply
in addition to two (2) notification appliance circuits. The notification appliance circuits may be configured as Class A, Style Z,
or Class B, Style Y. The notification appliance circuits are overcurrent protected, and may be individually programmed to operate in response to alarms from any initiating circuit, addressable initiating device, or group of circuits.
The notification appliance circuits provide 1.75 amperes each. The auxiliary power output is likewise 1.75 amperes with total power for all circuits combined not to exceed four (4) amperes. The auxiliary power output is jumper-configurable as
resettable or non-resettable
Apluggable terminal block is provided for the connection of all circuits. This terminal block will accommodate wire sizes up
to 12 AWG.
The Dual Signal Unit (DSU) is a full-size unit. It contains an addressing switch and a “NORMAL - OFF” disconnect switch
for each notification appliance circuit. LEDs mounted on the DSU include:
LED
Green
Green
Yellow
Yellow
Yellow
Designation
“AC POWER”
“DC POWER”
“TROUBLE NOTIFICATION 1"
“TROUBLE NOTIFICATION 2"
“BATTERY FAULT”
Function
Indicates that AC input is present.
Indicates that power supply is functioning.
Indicates trouble in Notification Appl. Circuit 1.
Indicates trouble in Notification Appl. Circuit 2.
Indicates low or missing battery.
TECHNICAL INFORMATION
Supervisory current
Alarm current
AC Input
Notification appliance circuit output
Auxiliary power output
.025 amp.
.075 amp.
110/120 VAC, 50-60 Hz, 2 amp.
220/240 VAC, 50-60 Hz, 1 amp.
1.75 amps./circuit
1.75 amps. @ 24 VDC
ORDERING INFORMATION
Part No.
1100-1327
1120-0495
Model
DSU
XFMR
Description
Dual Signal Unit
Transformer, 120/240 VAC (Order separately)
Specifications are provided for information only, are not intended to be used for installation purposes, 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.
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16 Southwest Park, Westwood, MA 02090 USA TEL: (781) 471-3000 FAX: (781) 471-3099
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9020-0312/Ver. 1.6