SWITCHERS
400-0099-003
9
6.
If necessary, select the SYNC DELAY UP or
DOWN button. To activate and set the SYNC
DELAY mode to memory, press and hold the UP
and DOWN button. LEDs that represent the
selected time should light.
7.
To activate the AUTO-SWITCH mode, press the
AUTO-SWITCH button. The LED that represents
the AUTO-SWITCH mode should light. If the
AUTO-ROTATE mode was selected previously,
it will cancel. Audio inputs will follow video inputs
if the AUDIO BREAK-AWAY mode was not
selected previously.
8.
The AUDIO VOLUME mode will control the
audio stereo volume when the VOLUME UP or
DOWN button is pressed and released. The
AUDIO VOLUME UP or DOWN button is
between a maximum volume of +6dB and a
minimum volume of –6dB. From the minimum to
maximum volume, there are fifteen points. Each
point represents 0.8dB. After selecting the
volume, press and hold the UP and DOWN
buttons simultaneously to save the setting.
9.
To turn OFF the beeping sound, press the BEEP
ON/OFF button. The LED that represents this
button should turn OFF. To activate sound,
press the BEEP ON/OFF button again.
10.
To return the switcher to factory presets, turn the
unit OFF, press the RESET button, turn the
power on, and then release the RESET button.
After a brief delay, all LEDs should blink ON and
OFF. A beeping sound will be heard indicating
that the switcher has been reset.
7.2 RS-232 CONTROL
The
MX2456RM
Switcher offers remote control
capabilities through RS-232; the primary
communication standard used by control systems
and computers.
In fact, the
MX2456RM
offers more features using
RS-232 than are currently available from the front
panel of the unit.
The
MX2456RM
offers a terminal block using
solder-free, screw-down contacts,
making it
extremely easy to connect the switcher to a control
system or a computer in the field.
Figure 1. RS-232 Terminal Block
PIN No.
PIN Designation
1
+5V
(not needed for RS-232 connection)
2
GND (Ground)
3
RCV (Receive)
4
XMT (Transmit)
The terminal block is labeled with the appropriate
contact designations: Transmit (XMT), Receive
(RCV), and Ground (GND). Always remember that
the Transmit pin from the control system or
computer must be connected to the Receive pin on
the switcher control port; do not connect Transmit to
Transmit or Receive to Receive.
NOTE:
The contact l5V is not used for
RS-232 connections. This contact is used to provide
DC voltage to other equipment installed within close
proximity of the
MX2456RM
.
