Chapter 3: Connecting to the Line

The following table and illustrations describe the V.24 signals on the connector.

Pin #Name (CCITT #)Signal

Direction

 

 

 

 

1

Shield(101)

Shield

Common

 

 

 

 

2

TxD(103)

Transmit Data

Out

 

 

 

 

3

RxD(104)

Receive Data

In

 

 

 

 

4

RTS(105)

Ready to Send

Out

 

 

 

 

5

CTS(106)

Clear to Send

In

 

 

 

 

6

DSR(107)

Data Set Ready

In

 

 

 

 

7

GND(102)

Ground

Common

 

 

 

 

8

DCD(109)

Data Carrier Detect

In

 

 

 

 

15

TXCin(114)

Transmit Clock (DCE)

In

 

 

 

 

17

RxC(115)

Receive Clock

In

 

 

 

 

20

DTR(108)

Data Terminal Ready

Out

 

 

 

 

22

RI(125)

Ring Indication

In

 

 

 

 

24

TxC(113)

Transmit Clock (DTE)

Out

 

 

 

 

25

-TEST

Test

In

 

 

 

 

iSPAN Serial WAN Adapter Users Guide

23