CEM Systems Door Interface Unit DIU 210 User Manual

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OVERVIEW
The Door Interface Unit (DIU 210) is designed primarily to provide power to a door
lock, as well as local power to a CEM reader when a high level of security is required.
It has onboard inputs which can be used to monitor conditions such as a fire alarm or
activated Break-glass condition.
The DIU 210 improves door security, by allowing the installer to locate lock controls
on the secure side of a door, with an intelligent CEM reader on the unsecured side. The
DIU 210 communicates with an intelligent CEM reader over a single pair RS485 cable.
Upon a valid swipe at the card reader, the reader will instruct the DIU (over the RS485
communications channel) to activate the appropriate output to release the lock using a
coded data signal (i.e. coded lock).
As an added benefit, the DIU 210 monitors the status of all standard door monitoring
inputs; inputs on an intelligent CEM reader are free for use as general purpose inputs
The DIU 210 is supplied in a steel enclosure complete with power supply backplane and
an output for an additional door holder.
DIU 210
• DoorInterfaceElectronics
held on one board
• Provides‘codedlock’serial
interface between door
hardware and card reader
• Onsiteselectablefor12Vor
24V lock output
• Firealarmandbreakglass
inputs for emergency door
release
• Designedforeaseof
installation and maintenance
using 2 part connectors
throughout
• CompliantwithEN55022
(emissions)andEN55024
(access control immunity)
• Backupbatteryconnectionfor
emergency power
FEATURES
DIU 210
Door Interface Unit
1. DIU Unit Enclosure
2. CEM Reader
3. Sounder
4. Break Glass Unit
5. REX/ Exit Reader or
Secure side push button
6. Door Holder
7. Door Lock
8. Lock Sense
9. DoorPositionsensor

CEM Systems Door Interface Unit DIU 210 Specifications

General

Model	DIU 210
Type	Door Interface Unit
Category	IP Access Controllers
Doors Controlled	1
Reader Ports	2
Relay Outputs	2
Certifications	CE, FCC
Compatibility	CEM Systems access control system
Inputs	4 supervised inputs
Outputs	2
Communication	RS485
Operating Temperature	-10°C to +50°C
Humidity	95% non-condensing
Weight	200g

Summary

Overview of DIU 210

DIU 210 Features

Product Highlights

Interfaces

Provides direct interfaces to devices like CEM Card Reader, Door Lock, Fire Alarm System, etc.

Board Protection

Designed to meet UL294 standard for power supply tamper resistance.

PSU Backplane Board and Enclosure

Includes mains input PSU, battery charging, and door holder connections.

Technical Specifications

Physical Specifications

Details dimensions, weight, and power requirements for the unit.

Functionality

Lists inputs for monitoring door status, alarms, and outputs for control.

Communication Interface

Details the RS485 connection to the card reader and connection types.