17
Chapter 2
HARDWARE INSTALLATION
User's Manual | KD630
1
5
C
7
Battery
S1
S3
2
2
10
9
2
10
9
1
M.2 M Key
COM (Serial) ports
RS232
RS422
RS485
Pin
COM1/2/3/4/5/6
COM1
COM1
1
DCD
TXD-
Data-
2
RXD
TXD+
Data+
3
TXD
RXD+
4
DTR
RXD-
5
GND
GND
GND
6
DSR
---
---
7
RTS
---
---
8
CTS
---
---
9
RI
---
---
COM Port Pin Assignment
X
Rear I/O Ports
The pin functions of COM 1 port will vary according to setting of JP1, JP2, JP3 and JP4. Refer
to “COM1/COM2 RS232/422/485 Select” and “COM1/COM2 RS232/Power Select” in this chap-
ter for more information.
The pin functions of COM 2 port will vary according to setting of JP6, JP7, JP8 and JP10. Re-
fer to “COM1/COM2 RS232/422/485 Select” and “COM1/COM2 RS232/Power Select” in this
chapter for more information.
COM 3/4/5/6 are fixed at RS232. The pin functions are listed at right.
The serial ports are asynchronous communication ports with 16C550A-compatible UARTs that
can be used with modems, serial printers, remote display terminals, and other serial devices.
Connecting External Serial Ports
Your COM port may come mounted on a card-edge bracket. Install the card-edge bracket to
an available slot at the rear of the system chassis then insert the serial port cable to the COM
connector. Make sure the colored stripe on the ribbon cable is aligned with pin 1 of the COM
connector.
BIOS Setting
Configure the serial COM ports in the Advanced menu (“NCT6116D Super IO Configuration”
submenu) of the BIOS. Refer to the chapter 3 for more information.
COM 1:
RS232/422/485
COM 2:
RS232/422/485
2
1
9
COM 2
COM 2: RS232
2
1
9
COM 3/4/5/6
