Serial And Parallel Interface Ports - Acorp 7KT266A User Manual

Chaosdr 1 Chaosdr 1
Chaosdr 1 Chaosdr 1 Chaosdr 1

1.5 Serial and Parallel Interface Ports

This system comes equipped with two serial ports and one
parallel port. Both types of interface ports will be explained
in this chapter.
The Serial Interfaces: COM1/COM2
The serial interface port is sometimes refered to as an RS-
232 port or an asynchronous communication port. Mice,
printers, modems and other peripheral devices can be
connected to a serial port. The serial port can also be used
to connect your computer system. If you wish to transfer
the contents of your hard disk to another system it can be
accomplished by using each machine's serial port.
COM1/COM2
The serial port on this system has one 9-pin connector.
Some older computer systems and peripherals used to be
equipped with only a 25-pin connector. Should you need to
connect your 9-pin serial port to an older 25-pin serial port,
you can purchase a 9-to-25 pin adapter.
Signal
DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI
DB9 Pin
1
2
3
4
5
6
7
8
9
1 - 1 3 1 - 1 3 1 - 1 3
1 - 1 3 1 - 1 3
Mnshdranarc Cdrbrhoshnn Mnshdranarc Cdrbrhoshnn
Mnshdranarc Cdrbrhoshnn Mnshdranarc Cdrbrhoshnn Mnshdranarc Cdrbrhoshnn
COM2
1
DB25 Pin
8
3
2
20
7
6
4
5
22