Table B-3. Pin Assignments for the Serial Port

Connectors

Pin

Signal

I/O

Definition

 

 

 

 

1

DCD

I

Data carrier detect

2

SIN

I

Serial input

3

SOUT

O

Serial output

4

DTR

O

Data terminal ready

5

GND

N/A

Signal ground

6

DSR

I

Data set ready

7

RTS

O

Request to send

8

CTS

I

Clear to send

9

RI

I

Ring indicator

Shell

N/A

N/A

Chassis ground

 

 

 

 

Parallel Port Connector

If you reconfigure your hardware, you may need pin number and signal information for the parallel port con- nector. Figure B-4 illustrates the pin numbers for the parallel port connector, and Table B-4 lists and defines the pin assignments and interface signals for the parallel port connector.

14 — 25

1 — 13

Figure B-4. Pin Numbers for the Parallel Port Connector

Table B-4. Pin Assignments for the Parallel Port

Connector

Pin

Signal

I/O

Definition

 

 

 

 

1

STB#

I/O

Strobe

2

PD0

I/O

Printer data bit 0

3

PD1

I/O

Printer data bit 1

4

PD2

I/O

Printer data bit 2

5

PD3

I/O

Printer data bit 3

6

PD4

I/O

Printer data bit 4

7

PD5

I/O

Printer data bit 5

8

PD6

I/O

Printer data bit 6

9

PD7

I/O

Printer data bit 7

10

ACK#

I

Acknowledge

11

BUSY

I

Busy

12

PE

I

Paper end

13

SLCT

I

Select

14

AFD#

O

Automatic feed

15

ERR#

I

Error

16

INIT#

O

Initialize printer

17

SLIN#

O

Select in

18-25

GND

N/A

Signal ground

 

 

 

 

Keyboard and Mouse Connectors

The system uses a Personal System/2 (PS/2)-style key- board and supports a PS/2-compatible mouse. Cables from both devices attach to 6-pin, miniature Deutsche Industrie Norm (DIN) connectors on the back panel of your computer. The keyboard connector is on the bottom; the mouse connector is on the top.

A PS/2-compatible mouse works identically to an industry- standard serial mouse or bus mouse except that it has its own dedicated connector, which frees up both serial ports and does not require an expansion card. Circuitry inside the

Hardware Configuration Features B-127

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Dell 2100/200, 2100/180 manual Parallel Port Connector, Keyboard and Mouse Connectors

2100/180, 2100/200 specifications

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