Extron Electronics MTPX Series User Guide - Manual (Page 25)

2-9 MTPX Twisted Pair Matrix Switchers • Installation
PRELIMINAR
Y
Front Panel Configuration Port
ENTER PRESET VIEW ESC RGBHV AUDIO
CONTROL IO
CONFIG
MTPX SERIES
MTP MATRIX SWITCHER
1
Figure 2-9 — Front panel configuration port
a
Configuration port — This 2.5 mm mini stereo jack serves the same serial
communications function as the rear panel Remote port, but it is easier to
access 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 2-10),
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 2-10 — 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 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.
This 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.