Port Locations; Serial Connector - Dell Inspiron 4100 Service Manual

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Ports and Connector Pin-Outs
Dell™ Inspiron™ 4100
Port Locations
Serial Connector
Parallel Connector
Docking Connector
PS/2 Connector
USB Connector
Video Connector
S-Video TV-Out Connector

Port Locations

1 air intake 6 PS/2 connector

2 serial connector

7 USB connector
3 parallel connector 8 video connector
4 docking connector 9 AC adapter connector
5 air vent
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.
Pin Signal 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 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 Frame ground