User Guide User guide

Installation, cont’d
MVX Plus 128 VGA A Matrix Switcher • Installation
2-8
PRELIMINARY
Front Panel Configuration Port
MVX PLUS SERIES
VGA MATRIX SWITCHER
WITH
IP LINK™
AUDIO
VIDEO
I/O
CONTROL
ENTER PRESET
VIEW
ESC
CONFIG
9
Figure 2-7 — Front panel configuration port
i
Configuration port — This 2.5 mm mini stereo jack serves the same serial
communications function as the rear panel Remote port, but is easier to access
than the rear port after the matrix switcher has been installed and cabled.
The optional 9-pin D to 2.5 mm mini jack TRS RS-232 cable, part #70-335-01
(figure 2-8), can be used for this connection.
6 feet
(1.8 m)
Part #70-335-01
5
1
9
6
Sleeve (Gnd)
Ring
Tip
9-pin D Connection TRS Plug
Pin 2 Computer's RX line Tip
Pin 3 Computer's TX line Ring
Pin 5 Computer's signal ground Sleeve
Figure 2-8 — Optional 9-pin TRS RS-232 cable
N
This port is independent of the rear panel Remote port and is not affected by
changes to the rear panel port’s protocol. This front panel port’s protocol can be
changed, under SIS command control only. See the Command/Response table
for IP SIS commands, in chapter 4, “Programmer’s Guide”, to configure all
ports under SIS control.
N
A front panel Configuration port connection and a rear panel Remote port
connection can both be active at the same time.
The Configuration port is RS-232 only, with its default protocols as follows:
• 9600 baud • no parity • 8 data bits
• 1 stop bit • no flow control
N
The maximum distances from the matrix switcher to the controlling device
can vary up to 200 feet (61 m). Factors such as cable gauge, baud rates,
environment, and output levels (from the switcher and the controlling device)
all affect transmission distance. Distances of about 50 feet (15 m) are typically
not a problem. In some cases the matrix switcher may be capable of serial
communications via RS-232 up to 250 feet (76 m) away.