Service Guide
2-7
2.5.3 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 2-5 (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.
Figure 2-5
Serial Port Pinouts
Summary of Contents for Extensa 670
Page 46: ...Service Guide 4 7 Figure 4 2 M1521 Pin Assignments ...
Page 51: ...4 12 Theory of Operation Figure 4 6 M6377 Chip Pinouts ...
Page 56: ...Service Guide 4 17 Figure 4 10 TI1130 Chip PCI to CardBus 32 bit Pinouts ...
Page 102: ...A 10 Maintenance Data Figure A 7 Main Board Logic Diagrams Sheet 1 of 36 ...
Page 103: ...Service Guide A 11 Figure A 8 Main Board Logic Diagrams Sheet 2 of 36 ...
Page 104: ...A 12 Maintenance Data Figure A 9 Main Board Logic Diagrams Sheet 3 of 36 ...
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