© MuxLab Inc.
VGA 4x1 Switcher Installation Guide
Page 22
If a device has been loaded manually, a COM port on
the PC must first be selected by clicking the down arrow
next to
Connect Using
. The user can then select a COM
port and finalize this choice by clicking on the
Apply
Changes
button. Once this is done, other fields will no
longer be grayed out, and the user can proceed to name
(or rename) a device and its four input ports.
3. Choosing a Port Selection Method
Once a device has been loaded and configured, it can be
controlled by the user via the
Port Selection
tab. This
consists of selecting which of a device’s four input ports,
each assigned a unique number from 1 to 4, will be fed
to the device’s output port. Port selection can be done
either automatically or manually:
Automatic Port Selection chooses the lowest numbered
connected
input port on a device to feed to its output
port. For example, if all 4 input ports on a device are
connected to sources, Automatic Port Selection will feed
input port 1 on the device to its output. If input port 1
were then to be disconnected from its source, Automatic
Port Selection would feed input port 2 on the device to
its output. If only input ports 3 and 4 are connected to
sources, Automatic Port Selection would feed input port
3 on the device to its output.
Manual Port Selection leaves the choice of which input
port on a device to feed to its output entirely up to the
user. In fact the user can choose to feed an input port
with no signal
to the output port of a device. Please note
that when no signal is detected at an input port, the
expression
(No Signal Detected)
will be appended to
that port’s name (Figure 15).
