Matrix-700 Hardware Guide
ARTILA
10
3.2 Serial Port
The Matrix-700 provide total four RS-485 / RS-232 ports that each port can be
configured by software.
RS-485 supports automatic direction control (by hardware).
The pin assignment is shown as following table.
Pin No.
RS-232
RS-485
1
DSR
-
2
RTS
DATA+
3
GND
GND
4
TXD
DATA-
5
RXD
--
6
DCD
-
7
CTS
-
8
DTR
-
Enable/Disable Termination resistor for RS-485
The Matrix-700 equips on-board 120Ohm termination resistor for each RS-485 port.
Default setting is disable termination resistor. In order to enable termination resistor,
please remove the top cover of the Matrix-700, and the adjust the associated jumper
to short position1 - 2, shown below:
RS-485 Port
P1
P2
P3
P4
Jumper No.
J2
J3
J4
J5
Termination Resistor Disabled (default)
Termination Resistor Enabled
1 2 3
1 2 3
RS-485 / RS-232
Ports
