User Manual
Table Of Contents
- About this manual
- Chapter 1: Getting to know your Embedded Computer
- Chapter 2: Using your Embedded Computer
- Chapter 3: Upgrading your Embedded Computer
- 3.1 Removing the bottom cover
- 3.2 Replacing the bottom cover
- 3.3 Installing a nano SIM card (optional)
- 3.4 Installing an M.2 (E-key) module
- 3.5 Installing an M.2 (M-key) module
- 3.6 Installing an M.2 (B-key) module
- 3.7 Installing antennas (optional)
- 3.8 Installing wall mount brackets (optional)
- 3.9 Mounting to a surface (optional)
- 3.10 Installing DIN rail clips (optional)
- 3.11 Installing the terminal block (optional)
- Chapter 4: Setting up your Embedded Computer
- Appendix
PE Series
15
Serial (COM) connector
The 9-pin DB9 connector allows you to connect RS-232/
RS-422/RS-485 devices that have serial ports, such as
bar code scanner, modem, or printers. Please refer to the
table below for the pin definitions of the different COM
connectors.
NOTE: Default set to RS-232.
1 2 3 4 5
6 7 8 9
Pin RS-232 RS-422 RS-485
1 NA TX- D-
2 RXD TX+ D+
3 TXD RX+ NA
4 NA RX- NA
5 GND GND GND
6 NA NA NA
7 RTS# NA NA
8 CTS# NA NA
9 NA NA NA