Norco MITX-6922, User Manual

Page: 17 / 55

MITX-6922
Mini-ITX Motherboard Based on Intel QM67/QM77 Chipset
10
2.5.2 Serial Port
（
COM1
，
COM2
，
COM3456
）
Board with 6xserial port
，
COM1 is standard DB9 pin connector
、
COM2 is standard 2
×
5
Pin pin
，
the DB9 interface needs to be led out through the conversion cable
；
COM3-6 are 2
×
20Pin pin
，
the equipment needs to be connected by conversion cable. Users can turn on or off
the serial port in the BIOS setting option, and can select its interrupt IRQ and I / O address.
COM1-COM6 all support RS232 transmission mode
，
COM2 also support RS422/485
transmission mode. Users can select COM2 transmission mode by setting jumpers. Refer to
2.4.4 "COM2 jumper settings" in Chapter Two for detailed settings.
COM1
：
Signal Name Pin Signal Name
DCD 1 2 DSR
SIN 3 4 RTS
SOUT 5 6 CTS
DTR 7 8 RI
GND 9 10 GND
COM2
：
Signal Name Pin Signal Name
DCD 1 2 DSR
COM1
COM2
COM3456