Instructions

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1 - 2: 12-24V/DC I/P -- (Power Input Terminal)
Connect to a 12-24V/DC power supply. The (-) supply and the (-) GND are the common grounding points of the
system. The system accepts full input voltage range.
3: KEYPAD POWER O/P -- (Power Output for External Keypads – 500mA Max.)
This power source is prepared for the external keypad(s). Its output voltage follows to the input voltage at terminals
1 - 2 but the output current is limited to 500mA only. This output terminal is protected by a 500mA reset-able fuse to
prevent sabotage to the internal power supply of the system in short circuit from the external keypad.
4: DATA I/O PORT -- (Data Input/Output Port for Split-Decoded Operation)
Connect this terminal with the Data I/O terminal of the server keypad unit to link up system for Split-Decoded operation.
The auxiliary keypads or readers can also be connected in parallel to this terminal.
5: EG IN -- (Egress Input)
A Normally Open (N.O.) input terminal referring to (-) ground. With the help of a normally open button to activate
Output 1 for door open in the same manner of using the User PINs or Cards on keypad. It follows the Function Mode
jumper setting of Start/Stop or Momentary in Stand Alone mode.
Egress button is usually put inside the house near the door for exit convenience. More than one egress buttons can
be connected in parallel to this terminal. Leave this terminal open if not used.
6: DOOR BELL IN – (Input Terminal for Optional Door Bell Button)
A terminal prepared for connection of the optional bell button(s) referring to (-) ground to activate the built-in door
chime. The button with Normally Open contact (N.O.) is required and more than one buttons can be connected in
parallel to the terminal.
No connection is required for split-decoded keypad. The Bell Button of the server keypad operates the
built-in door chime via the Data I/O bus.
7: DU OUT -- (Duress Output)
An NPN transistor open collector output with the maximum power rating of 24V/DC/100mA sink. It is equivalent to
an N.O. (Normally Open) terminal switching to (-) ground after the entry of Duress Code. Use it to trigger an alarm
zone of a security system, or turn on a buzzer to notify a guard. Please see the application hints for more information.
Duress Function is available only in Split-decoded mode with Duress Code programmed from keypad.
8: INTER-LOCK O/P -- (Inter-lock Control Output)
An NPN transistor open collector output with the maximum power rating of 24V/DC/100mA sink. It is OFF at normal
condition. It switches to (-) ground immediately for the rst 5 seconds after received an operation command for Output
1 or after keying in a valid User Code or reading a Card to operate Output 1. It keeps tying to (-) ground during the
Door Position Sensor is open circuit due to door open. Use this output point to make cross wire connection with the
associated controller’s “O/P 1 Inhibit” point in an Inter-lock system to prevent both doors that can be opened at the
same time.
An Inter-lock System:
An inter-lock system is a two-door system that always allows only one of the doors to open during the operation. While
one of the doors is opened, the other door keeps close until the open door is re-closed. It prevents the unauthorized
people dashing into a protected area.
An inter-lock system needs two keypads or controllers and two door position sensing switches for the two doors.
Please see the Application Example for more information