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TECHNICAL SPECIFICATIONS

PHySICAL

Size 

115 x 76 x 10mm (4.5 x 3.0 x 0.4”)

Weight 

0.1Kg

Power
   - Voltage 

12Vdc

   - Current 

30mA (excluding locks and heads) 

Consumption

Environmental
  - Temperature 

-10º to 40ºC (14º to 104ºF)

  - Humidity 

95% non condensing

LED Indicators 

+12 Volts OK, Lock supply OK, Lock Status,  

 

Watchdog, Fault, Battery Low, RS485 Rx  

 

and TX.

FUNCTIONALITy

Inputs 

* Door Position

 

* Lock Status

 

* Exit Push Button

 

* General Purpose

 

   Break Glass Sense

 

   Fire Alarm Sense

 

   Power Fail

 

   Tamper

 

   Battery Low (reported internally)

 

   Dedicated Power Fail Input

 

   * = 4 state tamper protected inputs

Outputs 

Two 12V or 24V open collector outputs  

 

limited to 1.5A

 

(Door Lock and External Sounder)

Reader Output 

12V, limited to 800mA

Memory 

32kB Flash memory

 

COmmUNICATION INTERFACE

To Card Reader 

RS485 multidrop cable runs using copper  

 

wire with maximum length of 1.2km  

 

without repeater 

  - Connection 

2 part screw terminals

PROdUCT COdES

DIU/700/B00 

DIU 200 (Board Only Module)

DIU/700/000   

DIU 210 (Complete with PSU

 

Backplane and Enclosure. 

CEM Systems Ltd Unit 4 Ravenhill Business Park Ravenhill Road Belfast BT6 8AW Northern Ireland

Tel:  +44 (0)28 9045 6767  Fax: +44 (0)28 9045 4535  email: [email protected]

www.cemsys.com

Interfaces

The DIU 200 Module provides direct interfaces to the 
following devices:

•  CEM Card Reader 
•  Electric Door Lock
•  Fire Alarm System
•  Break Glass Unit
•  Exit Push Button
•  Inputs from alarm devices

Up to 8 inputs can be wired from alarm/status monitoring 
devices directly to the DIU 200 module.  These devices are 
used to monitor door sensors, DIU tamper and battery alarms 
and fire/break glass emergency conditions.
If an input from the fire alarm system or break glass unit 
changes state, the power to the door lock is automatically 
dropped; this hardware-controlled facility ensures that the 
door opens in an emergency situation.  Details of alarm 
conditions can be sent directly to the door controller or to 
the host, via the card reader, for central alarm notification.

Board Protection

The DIU 200 has been designed to meet the UL294 standard 
providing resistance to power supply tamper, limiting the 
current to a reader so that shorting together the 12 Volt 
terminals prevents the lock from opening.

Reader Inputs

The DIU 200 can also monitor the status of all the door 
furniture inputs, freeing up the inputs on the intelligent CEM 
reader for general purpose input monitoring.

Optional PSU Backplane Board and Enclosure

The DIU can also be supplied with an enclosure and 
backplane board (DIU 200) providing a mains input PSU, 
battery charging capabilities and door holder connections.

Alternative PSU Enclosure

The DIU 200 module has been tried and tested with the 
Elmdene 1380 series enclosure. (www.elmdene.co.uk).

PROdUCT HIgHLIgHTS

CEM/B/046

Product specifications and availability is subject to change without notice.  Certain product names mentioned herein may be trade names 
and/or registered trademarks of their companies.

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