Note:
1 A 470 ohm, 1/2W, pull-up resistor may be required between +12 VDC and READER DATA 1. The
pull-up resistor should be installed at the microcontroller’s terminal block. Refer to the
appropriate microcontroller manual for installation requirements.
2 Shielded cable is required. Connect all shields together at the micro or panel end using 14-AWG
wire. Do not make shield connections at the reader.
3 Refer to the appropriate microcontroller manual for specific wiring details.
4 Blocking diode may be type 1N5817 or GE part number 521224001 (included with reader). The
diode must be installed in a secure location, not accessible through the reader removal.
5 Protection diodes must be 1N4002, 1N4003, or 1N4004 for the door strike assembly.
6 Fuse, power supply, door strike, diodes, and relay are provided by the installer.
7 Request to exit (REX) terminals on the reader are not to be connected for UL listed installations.
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