Virtual Channels & Virtual Matrices
A system’s configuration allows groups of incoming signals from source devices
to be routed through the system and out to destination devices. The signals are
grouped into virtual input and output channels in which the channels’ component
signals (such as R, G, B, H, and V) can be grouped into a single channel to
permit the simultaneous switching of them as an aggregate signal (RGBHV). The
resulting virtual channel uses a single input or output number for control
purposes.
A virtual channel is assigned to a physical connector or group of physical
connectors. The signals in a virtual channel will be switched in unison (e.g., a
Y signal and a c signal on a Y/c board are each assigned to a different connector
but are switched in unison). A virtual channel can also be a subset of a signal on
a single connector (e.g., the left channel of a stereo audio connector).
The virtual input and output channels are then grouped into virtual matrices
(VMs) that define where the virtual channels can be routed. A virtual channel on
one VM cannot be routed to a virtual channel on another VM. However, a VM
can be created that includes multiple VMs. Normally the virtual channels are
assigned to a VM in a pattern (see page B-9), but they can be assigned
individually (see the X
N
Connect Help file).
B.1 Joining Virtual Matrices
Existing virtual matrices can be joined, allowing the signals of the combined
VMs to be switched simultaneously. The most common reason for joining VMs
is to configure a system so that audio can follow video. VMs that contain the
same signal cannot be joined, e.g., two matrices cannot be joined if they both
contain composite signals.
If one of the VMs to be joined is smaller than the other, the combined VM will
only include the number of channels in the smaller VM. For example, if VM1 is
32x32 and VM2 is 64x64, the combined VM will include all of the channels of
VM1 and the first 32 input and output channels of VM2.
Joining a specific subset of channels is not supported at this time. For the same
result, join two VMs, delete the unwanted channels from the joined VM, and
then collapse the channel gaps (see the X
N
Connect Help file).
Note
: For additional information on joining virtual matrices, see the X
N
Connect
Help file. To access the Help file topic for an open dialog box, press F1.
The information in the dialog box shown on page B-3 is based on the following
scenario. The original system switches 32x32 composite on VM1 and 64x64
stereo audio on VM2. The two VMs are joined to create VM0 that switches input
and output signals for thirty-two pairs of video and audio signals.
B-2
Epica-128 & Epica-256 Installation & Setup
Advanced Configuration: Modifying Virtual Matrices
Advanced
Configuration
