Specifications

DS7400Xi Ver. 3+ Reference Guide Copyright © 1995-96 Detection Systems, Inc. Page 4
1.0 Specifications
1.1 Enclosure Housing
1. The standard enclosure is manufactured from 20 Ga., cold-rolled
steel, and measures 12.5" Wide, by 14.5" High, by 3" Deep (31.8
cm Wide, by 36.8 cm High, by 7.6 cm Deep). A keyed lock is includ-
ed, and this enclosure has provision for an optional tamper switch
(required for commercial burglary applications) for monitoring the
door.
1.2 Temperature
Storage and Operating Temperature: +32° to +120°F
(0° to +49°C)
1.3 Power
NOTE: The total current output capacity for all auxiliary devices,
including keypads and smoke detectors = 1.5 A standby,
2.5 A alarm. The following ratings are maximum values.
The total combined output cannot exceed the max. load
current.
• Input power: 18 VAC, 50 VA, 50 Hz./60 Hz.
Auxiliary regulated power: 12 VDC, 1.0 A max.
• U. L. Listed Auxiliary power: 12 VDC, 1.0 A max.
• U. L. Listed Alarm Power Output: 12 VDC, 1.75 A max.
Auxiliary power voltage range: 12 V special application
• Optional Standby battery (P334): 12 V, 7.0 AH - 35 AH max.
• Control panel current draw: 175 mA, Standby
250 mA, Alarm
1.4 Outputs
Alarm Output: 12 VDC, 1.75 A output. Can be pro
grammed for steady or pulsed out-
put.
• Programmable Output 1* Solid state current sink (1.0 A max.).
Shorts to ground when activated.
Connect device to Aux. power pos-
itive. Can be used for alarm, arm-
ing state, or access control.** This
output is generally programmable.
• Programmable Output 2* Solid state voltage source (500 mA
max.). Can be used for alarm, arm-
ing state, or access control.**
This output is generally programma-
ble. For use with such compatible
devices as the Listed DS250 with a
4-wire base.
* = Current draw should be subtracted from either maximum
auxiliary or maximum alarm current draw.
** = Not investigated to the requirements of UL294.
1.5 Zones
• 8 on-board zones. Up to 128 total zones with expansion modules.
• Zone Response Time: 300 ms.
1.6 Keypads
• Maximum # of keypads: 15 Keypads
• Maximum wire length each: 1000 feet (305 m)
• Maximum wire length total: 6000 feet (1830 m)
in system
• Wire type: 4 conductor, unshielded, #22
AWG (0.8 mm) “Telephone
quad” or #18 AWG (1.0 mm)
quad wiring can be home-run
or daisy- chained.
NOTE: No more than 2 keypads (#22 AWG) or 3 keypads (#18
AWG) are recommended on any 1000 foot (305 m) run.
NOTE: Shared cable is not recommended for keypad, multiplex,
options bus, telephone, or siren wiring.
1.7 Communicator
Will report to two phone numbers with full single, double and back-
up reporting. Communicates in SIA (110 or 300 baud), 3/1, 3/1 Ext.,
3/1 with Parity, 3/1 Ext. with Parity, 4/1, 4/2, BFSK, Contact ID, and
Pager formats.
FCC Registration Number is ESVUSA-75333-AL-E
The ringer equivalence is 0.1B
Commercial Fire CSFM Listing Number is 7165-1062:111
Residential Fire CSFM Listing Number is 7167-1062:111
1.8 Partitions
The system has the capacity for 8 independant partitions.
1.9 Users
The DS7400Xi system allows up to 90 individual users. Each user
will have his own PIN number (the 4 digit code entered at the key-
pads) and his own authority level (to determine which functions he
may perform).
1.10 Lightning Protection
MOVs and spark gaps provide protection from lightning surges and
static discharges.
1.11 Burglar/Fire Zone Inputs
• Number of circuits: 8 Circuits on-board
• End-of-line resistor: 2.2 K (P/N 25944, provided)
• Loop resistance tolerance: 60 ohms
1.12 Fire Signal Initiating Circuit (2-wire mode)
Fire circuit will work with 2 or 4-wire detectors and has optional alarm
verification.
• Number of circuits: 8 Circuits on-board
• Type of circuit: Class B, latching
• End-of-line resistor: 2.2 K (P/N 25944, provided)
• Supervisory current: 5.5 mA
• Maximum short circuit current: 22 mA
• Maximum line resistance: 60 ohms
• Circuit voltage range: 8.5 to 14.1 VDC
• Total detector standby current: 2.5 mA
1.13 Multiplex Bus Wiring Requirements
• #22 AWG (0.8 mm). Up to 2000 feet (610 m) per system.
• #18 AWG (1.0 mm). Up to 5000 feet (1525 m) per system.
1.14 Option Bus Wiring Requirements
Maximum wire length 1000 feet (305 m) per home-run.
1.15 Max. Load Currents
Max. Current By Output:
Not to exceed the max. load
currents listed above per column.
Option Power
Standby Alarm
U. L. Installations
Non-U. L. Applications
Aux. Power & Keypad (Combined)
Bell Output
Programmable Output 2
Loop Power +
1.5 A
2.0 A
1.0 A
1.0 A
X
500 mA
500 mA
2.5 A
2.5 A
1.0 A
1.0 A
1.75 A
500 mA
500 mA
Max. Load Currents