Bosch Appliances D326A manual Ordering Information, Parts Included, Technical Specifications

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.

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 D326A

Allows compatible fire alarm control panels (FACP) to supervise Form A or B dry contact devices in a polling circuit

Parts Included

Quant. Component

1Point contact module

1Wall plate

1EOL resistor, 10 kΩ

1Hardware pack

1Literature 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)

Americas:	Europe, Middle East, Africa:	Asia-Pacific:	Represented by
Bosch Security Systems, Inc.	Bosch Security Systems B.V.	Robert Bosch (SEA) Pte Ltd, Security Systems
130 Perinton Parkway	P.O. Box 80002	11 Bishan Street 21
Fairport, New York, 14450, USA	5600 JB Eindhoven, The Netherlands	Singapore 573943
Phone: +1 800 289 0096	Phone: + 31 40 2577 284	Phone: +65 6258 5511
Fax: +1 585 223 9180	Fax: +31 40 2577 330	Fax: +65 6571 2698
security.sales@us.bosch.com	emea.securitysystems@bosch.com	apr.securitysystems@bosch.com
www.boschsecurity.us	www.boschsecurity.com	www.boschsecurity.com

©Bosch Security Systems Inc. 2010 Data subject to change without notice T1372026379 Cur: en-US, V5, 4 Jul 2010