User Guide Manual

Operation, cont’d
MTPX Twisted Pair Matrix Switchers • Operation
3-42
PRELIMINARY
Selecting the rear panel Remote port protocol and baud rate
N
The Remote port settings are protected when front panel Lock mode 2 is
selected. You can view the settings in Lock mode 2 but you cannot adjust them
from the front panel. See “Setting the front panel locks (Executive modes)” on
page 3-40.
N
This procedure works for the rear panel Remote port only. The front panel
Config port’s protocol can be changed via SIS command control only. See the
Command/Response table for SIS commands, in chapter 4, “Programmer’s
Guide”, to configure both ports under SIS control.
The switcher’s rear panel Remote port can support either RS-232 or RS-422 serial
communicationprotocol,andcanoperateat9600,19200,38400,and115200baud
rates. The settings of these variables can be viewed and changed from the front
panel.
View and configure the switcher’s remote port’s serial communications settings as
follows:
1
. To enter Serial Port and Audio/RS-232 Input Configuration mode, simultaneously
press and hold all
Controlbuttons(Enter,Preset,View,andEsc)(gure3-63).
ENTER PRESET VIEW ESC VIDEO AUDIO
CONTROL
ENTER PRESET VIEW ESC
CONTROL I/O
The flashing Control LED indicates the baud rate as follows:
Enter — 9600 Preset — 19200
View — 38400 Esc — 115200
The flashing I/O LED indicates the protocol as follows:
Video — RS-232 Audio — RS-422
In this example, the port is set to RS-232 at 9600 baud.
Press and hold the Enter, Preset, View, and Esc buttons.
= Blinking LED
= Lit LED
All Control LEDs light with one flashing. Both I/O LEDs light
with one flashing.
Serial Port and Audio/RS-232 Input
Configuration mode also provides a way to
view and change the TP inputs’ secondary
inputs (RS-232 or audio). See “Defining
the Audio/RS-232 wire pair” in this chapter.
NOTE
Figure 3-63 — RS-232/RS-422 and baud rate display
2. Release the Control buttons.
N
If front panel Lock mode 2 is selected and you try to perform step 3, the actions
are ignored; and the Enter, Video, and Audio LEDs flash. See “Setting the front
panel locks (Executive modes)” on page 3-40.