Serial Ports; Rear.panel.remote.port - Extron electronics MVX VGA A User Manual

Programmer's Guide

Serial Ports

The switcher has two serial ports that can be connected to a host device such as a
computer running the HyperTerminal utility, an RS-232 capable PDA, or a control
system. These ports make serial control of the switcher possible. The serial ports
are:
• The rear panel Remote (RS-232 or RS-422) port, a 9-pin D female connector
• The front panel Configuration (RS-232) port, a 2.5 mm mini stereo jack
The default protocol for both ports is as follows:
• 9600 baud
• 1 stop bit
The ports can be configured to operate at the 9600, 19200, 38400, or 115200 baud
rate.
N These two ports are independent of one another. A front panel Configuration
N The switcher can operate at 9600, 19200, 38400, or 115200 baud rates, but
Rear panel Remote port
Figure 4-1 — Remote connector pin assignments
N The rear panel Remote port can support either RS-232 or RS-422 serial
4-2 MVX VGA A Matrix Switchers • Programmer's Guide
• no parity
• no flow control
port connection and a rear panel Remote port connection can both be active at
the same time.
Extron recommends leaving these ports at 9600 baud only.
Pin RS-232 Function
1 — Not used
2 TX Transmit data
3 RX Receive data
1
6
4 — Not used
5 Gnd Signal ground
9
5
6 — Not used
7 — Not used
8 — Not used
9 — Not used
communication protocol and can operate at 9600, 19200, 38400, or 115200 baud
rates. See "Selecting the rear panel Remote port protocol and baud rate" in
chapter 3, "Operation", to configure the rear panel Remote port from the front
panel.
• 8-bit
RS-422 Function
— Not used
TX– Transmit data (–)
RX– Receive data (–)
— Not used
Gnd Signal ground
— Not used
RX+ Receive data (+)
TX+ Transmit data (+)
— Not used