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RS-232 Cable Specifications

To retain FCC Class A qualification all cables must be fully shielded and the shielding must be connected to the metal connectors.

RS-232 Cable

Pin Number

Description

Direction

Female DB15

Male DB25

 

From/To SGP

2

2

TxData, Transmit Data

From

4

3

RxData, Receive Data

To

3

4

RTS, Request to Send

From

10

5

CTS, Clear to Send

To

12

6

DSR, Data Set Ready

To

8

7

GND, Common Signal Ground

N/A

5

8

DCD, Data Carrier Detect

To

13

15

Tx Clock

To

14

17

Rx Clock

To

1

20

DTR, Data Terminal Ready

From

15

24

XTC, DTE Clock

From

Rx=Receive, Tx=Transmit, CTS=Clear to Send, RTS=Ready to Send,
DTR=Data Terminal Ready, DSR=Data Set Ready, DCD=Data Carrier Detect