Moxa Technologies ioThinx 4530 Series Quick Installation Manual page 5

Serial Communication
The ioThinx 4530 Series is equipped with a 3-in-1 serial interface that
supports either 1 RS-232 port, 1 RS-422 port, or 2 RS-485 ports. Refer
to the pin assignment table below for details.
45MR/ML Module Wiring
For more detailed information about 45MR/ML module wiring, additional
ioThinx 4530 Series documentation can be downloaded from the Moxa
website.
Installing the System on a DIN Rail
Reserve at least 55 mm of space above the DIN rail to ensure that
there is enough room to install the unit.
Step 1: Hook the top mounting clip of the unit onto the DIN rail and
then rotate the unit downwards until the bottom mounting clip comes in
contact with the DIN rail.
Step 2: Push the unit towards the
DIN rail until the mounting clip snaps
into place.
RS-232
PIN
(P1)
1 TXD
2 RXD
3 RTS
4 CTS
5 GND
- 5 -
RS-422
(P1)
TXD+
TXD-
RXD+
RXD-
GND
RS-485
(P1/P2)
DATA 1+
DATA 1-
DATA 2+
DATA 2-
GND