External Reader Connection; Proximity Reader Connection; Compatible Readers (External Reader); Lx007 - IDTECK LX007 Manual

You should connect REVERSE DIODES as shown in the diagram above. A desirable
DIODE is a Fast Recovery DIODE (current=min. 1A), 1N4004 - 1N4007 or similar.
4.4

External Reader Connection

Proximity Reader Connection

1. Connect (+) wire of the Proximity Reader to DC +12V.
2. Connect (-) wire of the Proximity Reader to GND.
3. Connect Data-0 wire of the Proximity Reader to the Pink wire.
4. Connect Data-1 wire of the Proximity Reader to the Cyan wire.

Compatible Readers (External Reader):

LX007

Wiring p.25