LiftMaster Readers User Guide - Page 4

WIRING 3 Wire the KPR2000. Wire Insulation Color Wiring Function Basic Stand Alone Wiring Notes Red Black Pink Blue Purple Orange Power + 12~24 Volts DC Regulated Power Input Power - 12~24 Volts DC Regulated Power Input Power - Ground Conductor Relay NO Normally Open Relay Output (Install diode provided) Relay Common Common Connection for Relay Output Relay NC Normally Closed Relay Output (Install diode provided) Pass-Through Wiring (Wiegand Master and Remote) Green White Pink Data 0 Wiegand Output (Pass-through)/Input (Stand Alone) Data 0 Data 1 Wiegand Output (Pass-through)/Input (Stand Alone) Data 1 Ground Advanced Input and Output Features Yellow Gray Brown REX Alarm Output Contact Input Request To Exit (REX) Input Negative contact for Alarm Door/Gate Contact Input (Normally Closed) WIRING EXAMPLES: Gate/Door Operator or Fail-Secure Strike Magnetic Lock or Fail-Safe Strike Normally Open Install a 1N4007 or equivalent diode. KPR2000 External Alarm (1 Amp Maximum) Common Blue Purple Red Gray Pink Black Networking Two KPR2000 Units or Connecting to an Access Control System External Alarm Normally Closed Install a 1N4007 or equivalent diode. KPR2000 Common Orange Purple Red Gray Pink (1 Amp Maximum) Black External Alarm Normally Open Install a 1N4007 or equivalent diode. KPR2000 Stand-Alone (Master Unit) Common Blue Purple Red Gray Black Pink (1 Amp Maximum) KPR2000 Stand-Alone (Remote Unit) Red Black Pink Green (Data 0) White (Data 1) Pink (must connect for ground reference) Maximum of 500 feet (152.4 m) 4