DB-25

RS232 DB25 Connector

DB-25M

Function

Abbreviation

1

Chassis/Frame Ground

GND

2

Transmitted Data

TD

3

Receive Data

RD

4

Request To Send

RTS

5

Clear To Send

CTS

6

Data Set Ready

DSR

7

 Signal Ground

GND

8

Data Carrier Detect

DCD or CD

9

Transmit + (Current Loop)

TD+

11

Transmit + (Current Loop)

TD -

18

Receive + (Current Loop)

RD+

20

Data Terminal Ready

DTR

22

Ring Indicator

RI

25

Receive - (Current Loop)

RD-

Data orginally from http://www.pin-outs.com

[Home] [Trimble] [Basic Setup] [Phones] [Cables] [Troubleshooting] [Types] [US Carriers] [Internet Links]