Extron Electronics MAV Plus Series - Manual (Page 109)

Programmer’s Guide, cont’d
CrossPoint 450 Plus and MAV Plus Switchers • Programmer’s Guide 4-2
Programmer’s Guide
Serial Ports
The switcher has one or 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
(matrix sizes up to 1616 only)
The default protocol for both ports is as follows:
• 9600 baud • no parity • 8 data bits
• 1 stop bit • no flow control
The ports can be configured to operate at the 9600, 19200, 38400, or 115200 baud
rate.
These two ports are independent of one another. A front panel Configuration
port connection and a rear panel Remote port connection can both be active at
the same time.
The switcher can operate at 9600, 19200, 38400, or 115200 baud rates, but
Extron recommends leaving these ports at 9600 baud only
.
Rear panel Remote port
RS-232 Function Pin RS-422 Function
1
2
3
4
5
6
7
8
9 —
TX
RX
—
Gnd
—
—
—
—
Not used
Transmit data
Receive data
Not used
Signal ground
Not used
Not used
Not used
Not used —
TX–
RX–
—
Gnd
—
RX+
TX+
—
Not used
Transmit data (–)
Receive data (–)
Not used
Signal ground
Not used
Receive data (+)
Transmit data (+)
Not used
RS-422 Function
All Models
2412 through 3232
Matrix Sizes
84 through 1616
Matrix Sizes
5
1
9
6
RS232/RS422
REMO
TE
TX+
TX–
RX+
RX–
Gnd
—
—
—
—
Transmit data (+)
Transmit data (–)
Receive data (+)
Receive data (–)
Signal Ground
Not used
Not used
Not used
Not used
Figure 4-1 — Remote connector pin assignments
The rear panel Remote port can support either RS-232 or RS-422 serial
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.