Kontron JRexplus-LX - Manual (Page 23)

KTD-S0001-C Page 19 Serial Port Interfaces
JRexplus LX User's Guide
The same connector X10 can be used as a RS-422 or RS-485 interface. The configuration is changeable in
the BIOS Setup.
Header Pin Signal RS-422 Signal RS-485 Function
1 TX- TX- / RX- Transmit data - / Receive data -
2 N.C. N.C. Not connected
3 RX+ N.C. Receive data + / Not connected
4 N.C. N.C. Not connected
5 TX+ TX+ / RX+ Transmit data + / Receive data +
6 N.C. N.C. Not connected
7 RX- N.C. Receive data - / Not connected
8 N.C. N.C. Not connected
9 GND GND Ground
1
10 VCC 1) VCC 1) Power +5V
Note: 1) To protect the external power lines of peripheral devices make sure that
- the wires have the right diameter to withstand the maximum available current.
- to enclosure of the peripheral device fulfills the fire-protecting conditions of IEC/EN 60950.
Attention: A RS-422/RS-485 terminating resistor is not equipped on the JRexplus LX.