This modular adapter has a DB9 Female that plugs into DB9 RS232 serial port and converts it to an RJ11 or RJ12 connection. RJ12 Pinout: Pin1 - White Pin2 - Black Pin3 - Red Pin4 - Green Pin5 - Yellow Pin6 - Brown. Gold plated pin. 28AWG wire. Molded ivory color housing. Thumb screw.

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