SNC 5100

Table 11 lists the null modem cable connections.

Table 11: Null Modem Cable Connections

Service

 

9-pin AT

25-pin (DB25)

Port Pin

Signal Name

connector

connector (DTE)

Number

 

 

 

 

 

 

 

 

1

Carrier detect (not used)

n/c

n/c

2

Receive data <->

3

2

 

Transmit data

 

 

3

Transmit data <->

2

3

 

Receive data

 

 

4

Data terminal ready <->

6

6

 

Data set ready

 

 

5

Signal ground

5

7

6

Data set ready <->

4

20

 

Data terminal ready

 

 

7

Request to send <->

8

5

 

Clear to send

 

 

8

Clear to send <->

7

4

 

Request to send

 

 

9

Ring indicator (not used)

n/c

n/c

 

 

 

 

Connecting the Service Terminal

Hardware Required

RS-232 DB9F null model cable

RS-232 DTE Terminal or desktop/laptop computer running terminal emulation software

RS-232 DB9M-to-DB25F adapter if the terminal uses a DB25M connector

96 Connecting the Service Terminal

6-00020-02

Page 104
Image 104
ADIC Scalar 1000, SNC 5100 manual Connecting the Service Terminal, Hardware Required, Lists the null modem cable connections