Ps/2 Keyboard And Mouse Connector (Cn8); Com Connector (Cn9) - AXIOMTEK imb500 User Manual

IMB500 LGA1151 ATX Motherboard
2.4.6

PS/2 Keyboard and Mouse Connector (CN8)

The motherboard has two 6-pin mini-DIN PS/2 connectors on the rear I/O; green for
mouse and purple for keyboard.
Pin Signal
1 KB_DT1
2 N/C
3 GND
4 +5V_DUAL
5 KB_CK1
6 N/C
2.4.7

COM Connector (CN9)

This is a high rise 9-pin D-Sub connector for COM1 serial port interface. The pin
assignments of RS-232/422/485 are listed in table below.
Pin RS-232
[**]
1 DCD#
2 RXD
3 TXD
4 DTR#
5 GND
6 DSR#
7 RTS#
8 CTS#
[**]
9 RI#
[*]
(see section 2.3.3).
[**]
Note
selecting JP4 (see section 2.3.4).
14
Pin Signal
7 MS_DT1
8 N/C
9 GND
10 +5V_DUAL
11 MS_CK1
12 N/C
[*] [*]
RS-422 RS-485
TX- 485-
TX+ 485+
RX+ N/C
RX- N/C
GND GND
N/C N/C
N/C N/C
N/C N/C
N/C N/C
: Signals of COM1 can be RS-232/422/485 by selecting JP3, JP5 and JP6
: Pin 1 of COM1 can be DCD/+5V and pin 9 of COM1 can be RI/+12V by
[*]
Board and Pin Assignments