Serial Port Connector; Usb3.1 Stack Ports - AXIOMTEK tBOX520-ADL-MR Series User Manual

tBOX520-ADL-MR Series User's Manual
3.1.2

Serial Port Connector

The COM1 port connector is a DB9 connector. The pin assignment of RS-232/RS-422/RS-
485 is listed in the following table. If you need the COM port to support RS-422 or RS-485,
please set it up in BIOS settings.
Pin RS-232
1 DCD, Data carrier detect
2 RXD, Receive data
3 TXD, Transmit data
4 DTR, Data terminal ready
5 GND, ground
6 DSR, Data set ready
7 RTS, Request to send
8 CTS, Clear to send
9 RI, Ring indicator
10 NC
3.1.3

USB3.1 Stack Ports

Pin Signal USB Port 0
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+
16
RS-422
TX-
TX+
RX+
RX-
GND, ground
NC
NC
NC
NC
NC
COM
Pin Signal USB Port 1
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-485
Data-
Data+
NC
NC
GND, ground
NC
NC
NC
NC
NC
Connector