Communications Reference

C

 

 

RS-232 Null Modem Cable for PC/XT (Part Number 048668)

25-PIN (SOCKET) D-SUB

 

 

 

METAL BACKSHELL

 

 

 

 

 

 

CHASSIS GROUND

 

 

 

1

 

TRANSMITTED DATA

2

 

RECEIVED DATA

3

 

REQUEST TO SEND

4

 

 

CLEAR TO SEND

5

 

 

DATA SET READY

6

 

GROUND

7

 

DATA TERMINAL READY

20

 

CARRIER DETECT

8

 

 

 

 

 

PC

SHIELD

25-PIN (PLUG) D-SUB

METAL BACKSHELL

1 CHASSIS GROUND

3 RECEIVED DATA

2 TRANSMITTED DATA

8 CARRIER DETECT

20DATA TERMINAL READY

7 GROUND

6 DATA SET READY

4

5CLEAR TO SEND PRINTER

NOTE: The metal backshell is connected directly

 

to the shield to achieve electrostatic discharge

 

(ESD) immunity.

3XXXU.010

RS-232 Null Modem Cable for PC/AT (Part Number 048693)

9-PIN (SOCKET) D-SUB

 

 

 

METAL BACKSHELL

 

 

 

 

 

 

RECEIVED DATA

 

 

 

2

 

TRANSMITTED DATA

3

 

CLEAR TO SEND

8

 

 

REQUEST TO SEND

7

 

 

DATA TERMINAL READY

4

 

DATA SET READY

6

 

CARRIER DETECT

1

 

GROUND

5

 

 

 

 

 

AT

SHIELD

25-PIN (PLUG) D-SUB

METAL BACKSHELL

1 CHASSIS GROUND

2TRANSMITTED DATA

3RECEIVED DATA

8 CARRIER DETECT

6 DATA SET READY

20 DATA TERMINAL READY

5 CLEAR TO SEND

4REQUEST TO SEND

7GROUND

PRINTER

NOTE: The metal backshell is connected directly

 

to the shield to achieve electrostatic discharge

 

(ESD) immunity.

3XXXU.011

C-9

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Image 123
IBM EasyCoder 3400e RS-232 Null Modem Cable for PC/XT Part Number, RS-232 Null Modem Cable for PC/AT Part Number