Connect equipment to the Connect IT serial ports Serial port pinout and use
Digi Connect IT® 4 User Guide
25
The Connect IT 4 RS232 serial ports are DTE and have the following pin configuration.
Pin Description Signal
Pin 1 RTS
Request to send Output from
Connect IT 4
Pin 2
DCD Data carrier detect Input to
Connect IT 4
Pin 3
RXD Receive data Input to
Connect IT 4
Pin 4/5
Ground Signal ground
Pin 6
TXD Transmit data Output from
Connect IT 4
Pin 7
DTR Data terminal ready Output from
Connect IT 4
Pin 8
CTS Clear to send Input to
Connect IT 4
Note Ring indicate (RI) and data set ready (DSR) are not implemented.
The serial ports use a female RJ45 jack to enable connection using UTP Ethernet cabling.
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