Serial Interfaces; Power Supply; General Control; Table 3-1. Rs-232 Signals On Serial Port 1 - Lantronix MatchPort AR Integration Manual

Serial Interfaces

The demo board has RS-232/422/485 transceivers, one per port. However, note that
only Serial Port 1 supports RS232/RS422/485 on MatchPort AR. The table below
lists the RS232 signals and corresponding pins on the demo board. All signals are
level-shifted by the transceivers.

Power Supply

The demo board uses an external 3.3V regulated supply (included with kit).

General Control

The following tables denote the configuration of the demo board. Configuring the
jumpers re-routes signals on the demo board to drive LEDs (general purpose
outputs), to use as Serial control signals, or to connect to other places on target
board as General Purpose IO (GPIO).
MatchPort AR™ Integration Guide

Table 3-1. RS-232 Signals on Serial Port 1

MatchPort Demo
PIN FUNCTION
Serial Port 1
TX1_232 (Data Out)
RX1_232 (Data In)
CTS1_232 (HW Flow Control Input)
RTS1_232 (HW Flow Control Output)
DCD1_232 (Modem Control Input)
DTR1_232 (Modem Control Output)
GND (Ground)
Table 3-x. RS-232 Signals on Serial Port 2
MatchPort Demo
PIN FUNCTION
Serial Port 2
TX2_232 (Data Out)
RX2_232(Data In)
CTS2_232 (HW Flow Control Input)
RTS2_232 (HW Flow Control Output)
DCD2_232 (Modem Control Input)
DTR2_232 (Modem Control Output)
GND (Ground)

Table 3-2. RS-422 4-Wire Connector on Serial Port 1

MatchPort Demo
PIN FUNCTION
Serial Port 1
TX+485 (Data Out)
TX-485 (Data Out)
RX+485 (Data In)
RX-485 (Data In)
GND (Ground)
3:Demonstration Kit
DB9
Pin #
CON1
3
2
8
7
1
4
5
DB9
Pin #
CON2
3
2
8
7
1
4
5
DB9
Pin #
CON1
7
3
2
8
5
22