BoxPC-NUCV|NUCR
Device Reference Manual – P – Revision 3
E.E.P.D. GmbH | Gewerbering 3 | 85258 Weichs
Copyright © 2019|2020 by E.E.P.D. GmbH. All right reserved. |
Rev.3.0
20
RS232 (optional)
This option must be enabled in the BIOS.
The 9-pin standard D-Sub connector (Fig.26) is connected to four wires.
9-pin D-Sub
Signal
2
RXD1_X
3
TXD1_X
5
GND
7
RTS1_X_m
8
CTS1_X_m
Tab. 5: Pin assignment RS232
Fig. 26: 9-pin D-SUB connector
RS232 / RS485 (UART / optional)
This option must be enabled in the BIOS.
The serial RS232/RS485 interface is provided by a multiprotocol transceiver.
The RS485 mode is available as a full duplex configuration only. The RS232
mode is connected to four wires. The connector is a standard 9-pin D-Sub
connector (Fig. 26).
9-pin D-Sub
Signal RS-232
Signal RS-485|FDX
only
1
-
RS485_TX_N
2
RXD0_X
RS485_TX_P
3
TXD0_X
RS485_RX_P
4
-
RS485_RX_N
5
GND
GND
7
RTS0_X_m
-
8
CTS0_X_m
-
Tab. 6: Pin assignment RS232/RS485