2 | D326A Analog Point Contact Module
2. Connect the wiring: Wiring terminals are clearly marked
and the module leaves ample room in the back box for
wiring.
3. Mount the module in the back box: The D326A mounts
on a four-inch square back box.
Data Circuit Length
Data (or polling) circuit length is the distance over the
circuit wire from the connection at the FACP to the most
distant device and back to the FACP. Data circuit length
must include the distance to any device connected to the
circuit in a T tap. The screw terminals can accept up to 14
AWG (1.5 mm) wire, but this reduces the allowable length
of the circuit. Refer to the D9067 Installation Guide (P/
N: 74‑07690‑000) for specific wire instructions and
specifications.
Initiating Device Circuit Connections
The initiating device circuit can use any number of UL-listed
normally open (NO) contact closure devices. Device circuit
wiring must not exceed 50 Ω. Install contact closure devices
according to the manufacturer’s installation instructions.
All wiring must be supervised and power-limited.
Note
Do not mix fire alarm initiating and supervisory
devices on the same module.
Parts Included
Quant.
Component
1
Point contact module
1
Wall plate
1
EOL resistor, 10 kΩ
1
Hardware pack
1
Literature pack
Technical Specifications
Environmental Considerations
Operating Temperature
+32°F to +120°F (0°C to +49°C)
Mechanical Properties
Color
Ivory
Dimensions (H x W x D)
4.7 in. x 4.2 in. x 1.35 in.
(12 cm x 11 cm x 3.5 cm)
Material:
Acrylonitrile-chlorinated PE-styrene (ACS)
Response Time:
2 sec
Weight
3 oz (85 g)
Power Requirements
Current
Alarm:
28 mA
Polling:
0.022 mA ± 20%
Standby:
0.035 mA (typical)
Resistance
End of Line Device
10 kΩ, 0.25 W per resistor
Initiating Device Circuit
Less than 50 Ω
Voltage (input)
Nominal:
24 VDC
Range:
17 VDC to 41 VDC
Ordering Information
D326A Analog Point Contact Module
Allows compatible fire alarm control panels
(FACP) to supervise Form A or B dry contact
devices in a polling circuit
D326A
Americas:
Bosch Security Systems, Inc.
130 Perinton Parkway
Fairport, New York, 14450, USA
Phone: +1 800 289 0096
Fax: +1 585 223 9180
www.boschsecurity.us
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
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
www.boschsecurity.com
Represented by
© Bosch Security Systems Inc. 2010 | Data subject to change without notice
T1372026379 | Cur: en-US, V5, 4 Jul 2010
