AMX Enova DGX 8 Instruction Manual page 92

Functions of DXLink Transmitters and Receivers
The diagram in FIG. 48 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. 48
Repeater and source functions of Transmitters and Receivers (A and B also apply to TX wallplate models)
Important Power Considerations for Enova DGX 32 Endpoint Systems
Note: This section does not apply to the Enova DGX 8/16/64 because the system is capable of providing
power for the maximum number of DXLink Transmitters and Receivers required when the enclosure contains
all DXLink Twisted Pair Input and Output boards.
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).
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*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.
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.
Instruction Manual – Enova DGX 8/16/32/64 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
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
Enova DGX DXLink™ Twisted Pair Boards
Destination
HDMI
cable
Destination
Destination
HDMI
cable
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