DIU 210
Door Interface Unit
The DIU 210 Door Interface Unit (DIU) provides power to a door lock and local power to a CEM reader when a high level of security is required. With its onboard inputs the DIU 210 can be used to monitor conditions such as a fire alarm or activated break-glass condition.
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- Door Interface Electronics held on one board
- Provides ‘coded lock’ serial interface between door hardware and card reader
- Onsite 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
- Backup battery connection for emergency power
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Physical Size 300 x 250 x 150 mm (11.8 x 9.84 x 5.9in) Weight 4.3Kg Power Voltage 100-240VAC, 50/60Hz Current Consumption Minimum: 57mA (excluding locks and heads)
Maximum: 175mA (including locks and heads)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 TXFunctionality Inputs Door Position*
Lock Status*
Exit Push Button*
Break Glass Sense
Fire Alarm Sense
Power Fail
Tamper
Battery Low (reported internally)
Dedicated Power Fail Input
* = 4 state tamper protected inputsOutputs Two12V or 24V open collector outputs limited
to 1.5A for Door Lock and Door Holder and
one 12v External Sounder outputReader Output 12V, limited to 800mA Memory 32kB Flash memory Batteries Two 12V 2.3Ah valve regulated lead
acid (VRLA) batteries required.
(Recommended type: Yuasa NP2.3-12)Communication Interface To Card Reader RS485 multidrop cable runs using copper wire
with maximum length of 1.2km without repeaterConnection 2 part screw terminals 
DIU 210
