Connecting Switching Systems With Dxlink Connectors - AMX Enova DGX 8 Instruction Manual

Connecting Switching Systems with DXLink Connectors

Switching systems with DXLink support (e.g., an Enova DGX Switcher and an Enova DVX-3150HD)
can be connected via their DXLink ports.
Important: This section does not refer to the linking of enclosures from CPU to CPU, which is not
supported in the Enova DGX Switcher.
In an installation with a multiple-stage switching system, the following applies:




* For example, the path through 3 switchers could be: source device
DXLink/HDMI port)
DXLink input (out a DXLink port)
Avoiding Network (Ethernet) Loops
Caution: Be careful not to create a network (Ethernet) loop.
Only one connection to a LAN is permitted within a switching system with DXLink support. Network
loops must be avoided. A network loop is created when the enclosure and one or more DXLink Modules
or Wallplates within the system are connected to a common LAN. The Enova DGX Switcher does not
support STP (Spanning Tree Protocol).
Example
In the example in FIG. 45, a network loop was created when an Enova DGX 16 was connected to a LAN
and one of its DXLink Transmitters was connected to the same LAN. The DXLink Transmitter needs to
be disconnected from the LAN. The same problem would also occur if an enclosure and one (or more) of
its DXLink Receivers were connected to a common LAN.
Source device
FIG. 45
Avoid network loops
Instruction Manual – Enova DGX 8/16/32 Digital Media Switchers
When two switching systems with DXLink support are connected via their DXLink ports,
only video and audio will be passed through the DXLink connection.
When a DXLink input or output on one switching system determines that it is connected to a
DXLink input or output on another switching system, the DXLink port will automatically
disable all Ethernet, power, and control on that connection port so that the only things passed
down the DXLink line are the video and audio signals.
When connecting switching systems via DXLink ports, AMX recommends no more than
3 switcher throughputs.*
Network loops must be avoided (see below).

Enova DGX 32, DXLink input (out a DXLink port)

DXLink Receiver
DXLink TX
Enova DGX DXLink™ Twisted Pair Boards

Enova DVX-3150HD (out a

display device as an HDMI signal.
LAN
Local Area Network
Enova DGX 16
LAN
connection

Enova DGX 16,
Destination device
89