Vga And Com1 D-Sub Connector (Cn6A And Cn6B) - AXIOMTEK PICO300 User Manual

A.6.5

VGA and COM1 D-Sub Connector (CN6A and CN6B)

The lower 15-pin D-Sub connector (CN6A) is for VGA interface and the upper 9-pin
D-Sub connector (CN6B) is for COM1 serial port interface. Note that CN6B is also
equipped with power capability on DCD and RI pins by setting JP1 (see section A.5.1). If
you need COM1 port to support RS-422 or RS-485 mode, please do it via BIOS setting
(see section 4.4). The pin assignments of RS-232/422/485 are listed in table below.
CN6B Pin RS-232
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
The CN6A is a standard type 15-pin D-Sub connector which is commonly used for VGA
monitor. This VGA interface configuration can be configured via software utility.
CN6A Pin Signal
1 Red
3 Blue
5 GND
7 GND
9 VCC
11 N.C.
13 Horizontal Sync
15 DDC CLK
I/O Boards (Optional)
RS-422 RS-485
TX- Data-
TX+ Data+
RX+ No use
RX- No use
No use No use
No use No use
No use No use
No use No use
No use No use
Pin Signal
2 Green
4 N.C.
6 GND
8 GND
10 GND
12 DDC DATA
14 Vertical Sync
PICO300 Pico-ITX Board
CN6B
CN6A
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