Ps/2 Keyboard And Mouse Connector (Cn15); Com Connector (Cn16); Internal Com Connectors (Cn17~Cn20) - AXIOMTEK MANO310 Series User Manual

2.4.11

PS/2 Keyboard and Mouse Connector (CN15)

The motherboard has two 6-pin mini-DIN PS/2 connectors; green for mouse and purple
for keyboard.
Pin Signal
1 K/B Data
2 NC
3 GND
4 +5V
5 K/B CLK
6 NC
2.4.12

COM Connector (CN16)

The CN16 is a double-deck 9-pin D-Sub connector for COM1 and COM2 port interfaces.
The default setting is RS232. However, both are selectable for RS-232/422/485 mode. If
you need COM1 to support RS-422 or RS-485, please refer to section 2.3.3. If you need
COM2 to support RS-422 or RS-485, please refer to section 2.3.4. 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#
2.4.13

Internal COM Connectors (CN17~CN20)

The motherboard has four 5x2-pin (pitch=2.54mm) connectors for COM3~COM6 port
interfaces. Only COM3 comes with power capability on DCD and RI pins by setting JP9
(see section 2.3.5).
Pin Signal
1 DCD#
3 RXD
5 TXD
7 DTR#
9 GND
Board and Pin Assignments
Pin Signal
7 M/S Data
8 NC
9 GND
10 +5V
11 M/S CLK
12 NC
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
Pin Signal
2 DSR#
4 RTS#
6 CTS#
8 RI#
10 N/C
MANO310 Mini ITX Motherboard
COM1
COM2
CN19
CN20
CN18
CN17 (COM3)
19