KeyPad Specs

[techdesi]

http://www.techdesign.be/projects/545/545.htm


* Up to two keypads may be connected to drive both relay outputs. <br>
* Professional, outdoor or other keypads may be used. <br>
* Relay outputs are configurable: output voltage +6 to +24VDC (from power input) or simple switch emulation. <br>
* The small LCD is optional, and can be omitted. <br>
* Low power operation with internal switching power regulator and microcontroller auto sleep mode: only 4 .. 8 mA at 12VDC <br>
* The 4-digit secret codes can be changed by the user (previous code needed.) <br>
* Auto blocking after 5 wrong attempts. <br>
* High-pitched piëzo sounds when striking a key. <br>
* Keypad cable length up to 100m. <br>

[bellsking]

Do you have a pdf file that we can download the schematics ? It will be more helpful. Thanks.