I/O Definition; Serial Port - Toshiba 4818-ET1 User Manual

2.

I/O Definition

Please refer the detailed technical information about all I/O ports as followings.

2.1. Serial Port

COM1/COM2 by direct DB9 connector, COM3/COM4 by RJ50 connector with convert
to DB9 cable.
DB9 pin9 with NA/5V/12V by BIOS selection.
PIN
1
2
3
4
5
RS-232
Description
DCD
RXD
TXD
DTR
GND
PIN Description
6
7
8
NA / 5V /12V
9
2.
DSR
RTS
CTS
17