Serial Connector - Dell Inspiron 2500 Factory Service Manual

Ports and Connector Pin-Outs : Dell Inspiron 2500 Systems
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Ports and Connector Pin-Outs
Dell™ Inspiron™ 2500 Systems

Serial Connector

Parallel Connector
PS/2 Connector
USB Connectors
Video Connector
Serial Connector
Use the 9-pin serial connector to attach a serial device to the computer. The serial port passes data in
serial format (1 bit at a time over one line). This port 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.
Pin Signal
1 DCD
2 RXDA
3 TXDA
4 DTR
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I/O Definition
I Data carrier detect
I Receive data
O Transmit data
O Data terminal ready