Installing an External Serial Port Device

The notebook contains an external RS-232 serial port with a 9-pin, male DB-9 connector as shown in Figure 2-6 (25-pin cables require the use of an adapter for use with the 9-pin port). The serial ports are used to interconnect such devices as:

  • External Modem
  • Serial Mouse
  • Serial Printer
  • Any device that uses an RS-232 interface

Caution: Never connect a parallel device to a serial port or a serial device to a parallel port or video port; this may cause damage to the notebook and/or external device. If you are uncertain of what type connector the external device has, refer to the technical manual for the external device.

SERIAL PORT PINOUTS

PIN

SIGNAL

1

DCD (CARRIER DETECT)

2

RXD (RECEIVE DATA)

3

TXD TRANSMIT DATA)

4

DTR (DATA TERMINAL READY)

5

GND (GROUND)

6

DSR (DATA SET READY)

7

RTS (REQUEST TO SEND)

8

CTS (CLEAR TO SEND)

9

Rl (RING INDICATOR)

Figure 2-6 Serial Port Pinouts

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