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RS232 (9W D plug)

RS232 (9-pin D-plug)

A 9-way D-type plug provides RS232 communications to third party devices, this is typically a temperature sensing interface.  It provides one transmit and receive signal as well as CTS and RTS lines for handshaking.  DTR indicates to the other device that this device is powered.

UCC BI RS232 plug


Pin

Function

1

Reserved

2

RX_IN

3

TX_OUT

4

DTR_OUT

5

0 V

6

Reserved

7

RTS_OUT

8

CTS_IN

9

Reserved

Shell

Screen