Ports and Connector Pin-Outs: Dell Inspiron 4100

Serial Connector

Use the 9-pin serial connector to attach a serial device to the computer. The serial connector passes data in serial format (1 bit at a time over one line). This connector supports a variety of devices, including a serial mouse, that require serial data transmission. If you reconfigure your hardware, you may need pin number and signal information for the serial connector.

PinSignal

I/O

Definition

 

 

 

 

 

 

1

DCD

I

Data carrier detect

 

 

 

 

 

 

2

RXDA

I

Receive data

 

 

 

 

 

 

3

TXDA

O

Transmit data

 

 

 

 

 

 

4

DTR

O

Data terminal ready

 

 

 

 

 

 

5

GNDN/ASignal 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

Frame ground

 

 

 

 

 

 

 

 

 

 

 

Parallel Connector

Use the 25-hole parallel connector to attach a parallel device to the computer. The parallel connector is used primarily for printers. The parallel connector transmits data in parallel format, where 8 data bits

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