4-1 RS232 Serial Port Multiplexer Order our new 4 in 1 RS232 Serial Port Multiplexer! Allows you to connect 4 RS232 ports to one base unit that can then be connected to your modem or router! Multiplexer Datasheet Technical Specification - 4 Channels RS232 Multiplexer - RS232 Signal Levels
- 12V +/- 10%
- Dimensions: 85mm x 85mm (Approx)
RS232 Pin Out: - 2 - RX_IN
- 3 - TX_OUT
- 4 - +12V
- 5 - GND
14 way Mate N Lok - 4 - SEL_A (3-5v nominal)
- 5 - GND
- 6 - RX (RS232 levels)
- 7 - +12 Volts
- 11 - SEL_B (3-5V nominal)
- 13 - TX (RS232 levels)
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