Bosch D7044 User Manual
D7044
Installation Instructions
EN Multiplex Single Input
Module
D7044 | Installation Instructions | Notices
Notices
These instructions cover the installation of the D7044 Multiplex Single Input Module in a fire system, supervised by a D7024 or DS9400M Fire Alarm Control Panel (FACP) with firmware revision 2.0 or greater and a D7039 or DS9431 Multiplex Expansion Module.
Install, test, and maintain the D7044 according to these instructions, NFPA 72, Local Codes, and the Authority Having Jurisdiction (AHJ).
Follow the procedures in these instructions to avoid personal injury and damage to the equipment. Failure to follow the procedures can result in the D7044 not operating properly. Bosch is not responsible for improperly installed, tested, or maintained devices.
Test the FACP according to NFPA 72.
1.0Description
The D7044 (Figure 1) is a general purpose device that connects a contact device to the FACP multiplex bus with a supervised input loop.
Figure 1: D7044 Features
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3 |
0 |
1 A |
9 |
0 |
1 |
9 |
0 |
1 |
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2 |
8 |
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2 |
8 |
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0 |
7 |
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3 |
7 |
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3 |
2 |
1 B |
6 5 |
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6 5 |
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4 
1 - Status LED
2 - Zone input terminals
3 - Mux bus loop terminals
4 - Rotary address switches
All operating power for the D7044 is drawn from the FACP.
Rotary switches provide convenient address setting.
An on-board Status LED, visible through the faceplate, indicates normal operation and communication with the control panel. The LED flash rates are:
•Fast: Approximately 4 sec indicating an alarm condition.
•Medium: Approximately 8 sec indicating normal operation.
•Slow: Approximately 16 sec indicating a trouble condition.
The D7044 can be mounted in a standard double-gang or a 4 in. x 4 in. electrical box.
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Bosch | 10/04 | 48337D |
D7044 | Installation Instructions | 2.0 |
Setting the Address |
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2.0Setting the Address
Set the D7044 address using a flat-bladed screwdriver to position each rotary switch located on the front of the module (Figure 2). Note that the switches click when turned.
Figure 2: D7044 Address Setting |
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1 A |
9 |
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1 B |
6 5 |
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6 5 |
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1 - Hundreds 2 - Tens 3 - Ones
A = D7024 FACP, B = DS9400M FACP
For example:
0 hundreds, 9 tens, 5 ones = Address 095 on the D7024 FACP
The valid D7044 address range is 9 to 255. Refer to the
D7024 Operation and Installation Guide (P/N: 31499) or the DS9400M Reference Guide (P/N: 44578) for additional address limitations.
The A address range works on the D7039 Multiplex Expansion Module with the D7024 FACP. The B address range works on the DS9431 Multiplex Expansion Module with the DS9400M FACP.
Figure 2 shows the A address range set at 095, allowing the D7039 to work with the D7024 FACP.
3.0Wiring
Ensure all power is removed before making electrical connections. Failure to do so can
result in personal injury and damage to the equipment.
Connections are made using the terminals on either side of the D7044 (Items 2 and 3 in Figure 1 on page 2). All terminals can accommodate up to and including
12 AWG (2.3 mm) wire. Follow the wiring guidelines as specified by NFPA-70 and the local AHJ.
All wiring is power limited and supervised. Refer to Figures 3 and 4 for the two types of wiring connections.
Use normally-open (NO) contacts for Underwriters Laboratories, Inc. (UL) Listed fire installations.
Figure 3: Field Wiring Connections
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2 
3 
0 1 A |
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0 |
2 1 B |
1 - 2.21 kΩ end-of-line (EOL) resistor UL Listed (P/N: 25899)
2 - Zone in (+)
3 - Zone in (-)
Note: The maximum zone wire resistance = 100 Ω.
Figure 4: Loop and Panel Wiring Connections
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1 |
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4 |
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0 |
2 |
9 |
1 |
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8 |
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6 5 4 |
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1 - Mux bus loop (+)
2 - Mux bus loop (-)
3 - To next device
4 - From previous device, the D7039, or the DS9431
Bosch | 10/04 | 48337D |
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