AMX Enova DGX 8 Instruction Manual page 93

Functions of DXLink Transmitters and Receivers
The diagram in FIG. 44 shows the functions of DXLink Transmitters and Receivers and the example
descriptions contain the device HDCP key count when used in conjunction with DXLink Boards in an
Enova DGX Digital Media Switcher.
Example A
Source
Example B
Source
Example C
Source
Example A:
Example B:
Example C:
FIG. 44
Repeater and source functions of Transmitters and Receivers (A and B also apply to TX wallplate models)
Important Power Considerations for Enova DGX Endpoint Systems
In an endpoint system, the Enova DGX Switcher has DXLink Transmitters and/or Receivers attached.
The Transmitters and Receivers can be powered either locally, remotely, or via the switcher (the last two
are considered DXLink power since power is received via the DXLink line).


Important: If local power is used for the DXLink Modules, it must come from the provided desktop
power supplies, which must not be altered in any way.
*AMX supports the use of DXLink power injector PDXL-2 (FG1090-170) and PS-POE-AT-TC
(FG423-84); other power injectors may potentially damage the DXLink equipment.
Instruction Manual – Enova DGX 8/16/32 Digital Media Switchers
TX acts like a sink
HDMI
cable
Twisted pair cable
TX acts like a sink
HDMI
cable
Twisted pair cable
HDMI cable
When a Receiver acts like a source, its key does not count. Source device sees 1 key (Transmitter).
When a Transmitter acts like a sink, the source device sees 1 key (Transmitter).
When a source device is connected directly to a switcher, the source sees 1 key (switcher input).
Local power – Local power on a DXLink Transmitter or Receiver always takes precedence
over power via the DXLink line from the switcher. However, if a locally powered Module is
connected to a switcher and the local power is lost (i.e., unplugged or turned off), the Module
will power down and then automatically power back up using power from the switcher via the
DXLink connection (increasing the overall power draw on the switcher). When local power is
restored, it automatically replaces the power over the DXLink line.
DXLink power – When DXLink Transmitters or Receivers are being powered by an
Enova DGX DXLink board or DXLink power injector* (using power via the DXLink line), to
maintain the switcher's power redundancy, we recommend that you:
Determine the power budget based on the input/output boards used and the quantity of

powered endpoints (DXLink Modules and Wallplates); see the following page.
Do not use the local DC power jack on the Module (even if the local power adapter is

off).
Enova DGX DXLink™ Twisted Pair Boards
Enova DGX
RX acts like a source
DXLink In DXLink Out
Twisted pair cable
Enova DGX
DXLink In HDMI Out
HDMI cable
Enova DGX
RX acts like a source
Acts like sink
HDMI In DXLink Out
Twisted pair cable
Destination
HDMI
cable
Destination
Destination
HDMI
cable
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