IGT-30 Series
20
4.3
Serial Port (X3) & Console Port Pin Definition
X3 connector on the top panel comprises of ten pins starting with Pin X3.1 to X3.10.
It features signals for a serial port and a console port. The serial port, in the
preinstalled Debian operating system, is mapped to ttyS1, and is software
configurable among RS-232, RS-422 and RS-485. The following table shows the
definition of the ten pins.
Pin
Channel
RS-422
RS-485
RS-232
X3.1
TX+
TX+ of ttyS1
Data+ of ttyS1
Rx of ttyS1
X3.2
TX-
TX- of ttyS1
Data- of ttyS1
-
X3.3
RX+
RX+ of ttyS1
-
Tx of ttyS1
X3.4
RX-
RX- of ttyS1
-
-
X3.5
GND
Ground of serial port. This pin connects to system digital ground.
X3.6
Reserved
Reserved pin. Please keep it unconnected.
X3.7
Reserved
X3.8
CTX
Tx of Console Port (RS-232 signal)
X3.9
CRX
Rx of Console Port (RS-232 signal)
X3.10
GND
Ground of serial port. This pin connects to system digital ground.
