INSTALLATION-PERIPHERALS SECTION 100-816-207 MARCH 1993

TOSHIBA LAPTOP OR IBM AT-TYPE

PERSONAL COMPUTER (DTE)

PIN DESIGNATIONS

COM PORT

1

2

3

4

5

6

7

8

9

PIN #

 

 

 

 

 

 

 

 

 

 

NAME

DCD

RD

TD

DTR

SG

DSR

RTS

CTS

RI

 

 

 

 

 

 

 

 

 

 

PDIU-DI

(FUNCTIONS LIKE A DCE)

PIN DESIGNATIONS

PDIU-DI

1

2

3

4

5

6

7

8

20

22

PIN #

 

 

 

 

 

 

 

 

 

 

 

NAME

FG

TD

RD

RTS

CTS

DSR

SG

DCD

DTR

RI

 

 

 

 

 

 

 

 

 

 

 

Rear view of asynchronous (serial)

 

 

 

Rear view of PDIU-DI DB25,

communication interface connector (DB9) of

 

 

RS-232 female connector

 

 

Toshiba laptop or IBM AT personal computer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

7

6

5

4

3

2

1

1

2

3

4

5

 

DB25

 

22

20

 

 

 

 

 

 

 

6

7

8

9

FEMALE

 

 

 

 

 

 

 

 

CONNECTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

7

8

9

 

DB25

 

22

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

3

4

5

 

MALE

 

 

8

7

6

5

4

3

2

1

CONNECTOR

 

 

DB9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MALE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONNECTOR

 

 

 

 

DB9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FEMALE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONNECTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DB9

 

DB25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PIN #

NAME

PIN #

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

DCD

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

RD

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

TD

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

DTR

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

SG

7

IBM PC AT modem style (serial)

 

 

 

 

 

 

 

 

 

 

 

 

 

6

DSR

6

DB25 to DB9, RS-232 cable.

 

 

 

 

 

 

 

 

Pin to pin connections are

 

 

 

 

 

7

RTS

4

confiqured as a straight cable,

 

 

 

 

 

 

 

 

not as a null modem cable

 

 

 

 

 

8

CTS

5

(50 ft max, 24AWG;

 

 

 

 

 

 

 

 

 

 

customer-supplied).

 

 

 

 

 

 

 

9

RI

22

 

 

 

 

 

 

 

 

 

NOTES:

1.Some RS-232 EIA leads may be called by other names by some manufacturers.

2.The computer receives data on Pin 2 (RD) and sends data on Pin 3 (TD).

FIGURE 7-25

DK8 AND DK16 PDIU-DI TO IBM AT-TYPE COMPUTER, RS-232 CONNECTOR/CABLE CONNECTIONS

7-42

Page 174
Image 174
Toshiba DK 16, DK8 manual Toshiba Laptop or IBM AT-TYPE Personal Computer DTE, PDIU-DI Functions Like a DCE