
Fire Alarm Systems | DS9400M AddressiFire Fire Alarm Control Panel
DS9400M AddressiFire Fire Alarm Control 
Panel
Digital Fire Alarm Control Panel
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Provided with four conventional on-board inputs,
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expandable to eight
Up to 247 Addressable Multiplex Points
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Supports two-wire and four-wire conventional type
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detectors
Two NACs
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Two On-Board Auxiliary Relays
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Internal 24 V, 4 A power supply
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Supports four remote LCD Keypads
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On-board programming via front panel
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Expandable to 255 points
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The DS9400M AddressiFire 255 is a microprocessor-based 
Fire Alarm Control Panel. This four conventional point panel 
can expand to 255 input points. It supports up to twenty 
two-wire detectors per on-board conventional point, or any 
number of four-wire detectors (depending on available 
power). Two Notification Appliance Circuits (NACs) provide 
up to 4 A of 24 V power to operate horns, strobes, bells and 
other notification appliances. The DS9431 Multiplex 
Expansion Module (pre-installed) enhances the DS9400M’s 
conventional system features by adding addressable point 
capability, increasing the number of relay outputs and 
allowing for more system users.
Functions
Easy user interface
Nine labeled function keys allow the user to easily silence 
bells, sirens, reset smoke detectors, or view history events. 
Menu driven keypad programming allows for customizing of 
the control panel.
Keypad programmable
The system is completely keypad programmable, thus 
eliminating the need for an expensive hand-held 
programmer.
Initiating circuits
All on-board conventional input points will work with twowire or four-wire smoke detectors. Twenty detectors (twowire) maximum per zone.
Multiplex expansion technology
The DS9431 Multiplex Expansion Module (pre-installed) 
enhances the DS9400M conventional system features by 
expanding the base system to 255 total points, increasing 
the number of relay outputs to 58 and adding an additional 
400 events to the history buffer for a total of 500 nonvolatile events. The DS9431 also allows for up to 100 
system users on the DS9400M.
Built-In and remote alpha keypad support
The keypad built in to the control panel and the DS9447 
remote LCD keypad are alphanumeric keypads that provide 
a two-line, 16‑character (per line) LCD display. Text is freely 
programmable for zone descriptions. Up to four DS9447 
remote LCD keypads are allowed per system.
Personal ID Numbers (PINs)
The system supports up to 100 Personal ID Numbers (PINs), 
which are four digits in length. The PINs may contain any 
combination of digits. PINs may be programmed with four 
different levels of authority. These PINs may be restricted 
to silencing, resetting, disabling, and/or programming the 
system.
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2 | DS9400M AddressiFire Fire Alarm Control Panel
Smoke detector alarm verification
Should an alarm occur, the DS9400M may be programmed 
to perform an automatic reset on the smoke detectors. If a 
second alarm on any smoke input point occurs within the 
verification window, an immediate fire alarm results. This 
reduces potential false alarms, while still providing fast 
response to an alarm.
Flexible digital communication
The communicator will work with most alarm receivers that 
are in use today. It supports SIA (110 or 300 Baud), Contact 
ID, BFSK, and 4/2 Tone burst digital communicator formats.
EE Memory
The panel uses EEPROM technology, thereby allowing it to 
retain all program memory through a total power failure. 
None of the system programming or user codes will be lost.
Three telephone numbers
The systems supports two 20-digit telephone numbers with 
a three- or four-digit account code for each. Each phone 
line’s dialing type can be configured for either pulse or tone 
dialing. The communication format for each phone number 
can also be set. The third phone number is reserved for 
remote programming.
Event history buffer
A 500 event history buffer, which can be read at the built-in 
or DS9447 keypads, keeps track of events by time and date.
Commercial Fire 
Type Service: Auxiliary, Local, Central Station, and Remote
Station.
Type Initiating: Automatic, Manual, Sprinkler Supervisory 
and Waterflow.
Technical Specifications
Enclosure Design
Dimensions (HxWxD): 53 cm. x 38.1 cm. x 11.0 cm (20.8 in. x
15.0 in. x 4.3 in)
Material: The standard enclosure is manufactured
from 1.2 mm (18 guage) cold-rolled steel. 
A keyed lock is included, and the LEDs and 
display are visible through the door.
Environmental Considerations
Temperature (Operating): 0°C to +49°C (+32°F to +120°F)
Inputs
Supervisory EOL Resistor: 2.21 kΩ
Keypads: Maximum four keypads.
Outputs
Relays (On-Board): Two Form "C„ relays rated at 5 A, 28 VDC.
Programmable for a variety of system 
events.
NACs (on-board): Two: NAC 1 and NAC 2. These are 24 V
outputs for notification devices, with up to
2.5 A capacity (but limited by overall 4.0 A 
capacity) on each circuit. Wired for standard Class B operation.
Power Requirements
Power (Auxiliary): 20 VDC to 30 VDC unfiltered, 1 A
Power (Initiating Circuit): 20.4 VDC to 28.2 VDC filtered, 1 A
Power (Input): 120 VAC, 1.5 A
Power (NAC): 20 VDC to 30 VDC unfiltered, 4 A
Power (Open Bus): 12 V±5%, 500 mA
Standby Batteries: Two (optional) 12 V (in series),
7 Ah to 40 Ah
Standby Current (Detector): 3 mA maximum total per point
Installation/Configuration Notes
Keypads:
Up to four keypads may be used in the system with a 
maximum wire length of 300 m (1000 ft.) each.
Note No more than two keypads per 300 m (1000 ft.)
run.
Wiring:
The maximum wire length total in the system is 1220 m 
(4000 ft.) using 0.8 mm (#22 AWG) or 1.0 mm (#18 AWG) 
4-conductor cable.
Americas:
Bosch Security Systems, Inc. 
130 Perinton Parkway 
Fairport, New York, 14450, USA 
Phone: +1 800 289 0096 
Fax: +1 585 223 9180 
security.sales@us.bosch.com 
www.boschsecurity.us
© Bosch Security Systems Inc. 2010 | Data subject to change without notice 
T1113381259 | Cur: en-US, V2, 4 Jul 2010
Europe, Middle East, Africa:
Bosch Security Systems B.V. 
P.O. Box 80002 
5600 JB Eindhoven, The Netherlands 
Phone: + 31 40 2577 284 
Fax: +31 40 2577 330 
emea.securitysystems@bosch.com 
www.boschsecurity.com
Asia-Pacific:
Robert Bosch (SEA) Pte Ltd, Security Systems 
11 Bishan Street 21 
Singapore 573943 
Phone: +65 6258 5511 
Fax: +65 6571 2698 
apr.securitysystems@bosch.com 
www.boschsecurity.com
Ordering Information
DS9400M AddressiFire Fire Alarm Control
DS9400M
Panel
Accessories
DS9432 Addressable 8-Point Input Module DS9432
DS9434 Four-Point Expander DS9434
DS9446 Eight‑zone LED Expander DS9446
DS9488 Octal Relay Module DS9488
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