2-19CrossPoint 450 Plus and MAV Plus Switchers • Installation
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 2-24 — Optional 9-pin TRS RS-232 cable
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.
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
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.
