Usb 3.0 Stack Connector (Cn6); Com1 And Com2 D-Sub Connector (Cn7A And Cn7B) - AXIOMTEK PICO300 User Manual

A.12.5

USB 3.0 Stack Connector (CN6)

The board comes with a high rise double-deck Universal Serial Bus (compliant with USB
3.0 (5Gb/s)) connector on the rear I/O which are for installing USB peripherals such as
keyboard, mouse, scanner, etc.
Pin Signal
USB_VCC (+5V level
1
standby power)
2 USB_Data2-
3 USB_Data2+
4 GND
5 SSRX2-
6 SSRX2+
7 GND
8 SSTX2-
9 SSTX2+
A.12.6

COM1 and COM2 D-Sub Connector (CN7A and CN7B)

The CN7 is a double-deck 9-pin D-Sub connector. The lower connector (CN7A) is for
COM2 and the upper connector (CN7B) is for COM1. Note that only COM1 port comes
with power capability on DCD and RI pins by setting jumper (see section A.11.1). 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.
CN7B Pin RS-232
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
CN7A Pin Signal
1 Data Carrier Detect (DCD)
2 Receive Data (RXD)
3 Transmit Data (TXD)
4 Data Terminal Ready (DTR)
5 Ground (GND)
6 Data Set Ready (DSR)
7 Request to Send (RTS)
8 Clear to Send (CTS)
9 Ring Indicator (RI)
I/O Boards (Optional)
Pin Signal
USB_VCC (+5V level
10
standby power)
11 USB_Data3-
12 USB_Data3+
13 GND
14 SSRX3-
15 SSRX3+
16 GND
17 SSTX3-
18 SSTX3+
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
PICO300 Pico-ITX Board
CN7B
CN7A
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