Rs232 Port 1 / Programming Port; Rs232 Port 2 - Logic IO RTCU MX2 turbo Technical Manual

RTCU MX2 turbo Technical Manual V2.04

RS232 port 1 / programming port

This port can be used as general-purpose RS232 serial port or as a programming port. In order to
use the port for programming, the RS-DET pin must be connected to GND. When using the port as
general-purpose RS232, the RS-DET pin must be left unconnected.
X4: 6 pin SER1 connector overview
Pin Name
1 TD
4 RD
2 RS-DET
5 SGND

RS232 port 2

The port is a general-purpose RS232 port with all control signals according to EIA-561 that defines
RS232 on a modular connector.
The signals are available on the RJ-45 connector located on the front panel of the RTCU.
Connector SER2: RJ-45 connector overview, fully RS232 compatible
Pin Name
1 DSR
2 DCD
3 DTR
4 SGND
5 RD
6 TD
7 CTS
8 RTS
Logic IO ApS.
Holmboes Allé 14
8700 Horsens
Denmark
Description
Transmit Data from serial port 1, RS232 compatible
Receive Data for serial port 1, RS232 compatible
Programming cable detect, normally unconnected
(if programming cable, connect to GND)
Signal Ground
Description
Data Set Ready
Data Carrier Detect
Data Terminal Ready
Signal Ground
Receive Data for serial port 2
Transmit Data from serial port 2
Clear To Send
Request To Send
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