AMX AVB-WP-TX-MULTI-DXLINK Manual de instrucciones Pagina 108

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Troubleshooting
102
Instruction Manual – DXLink™ Twisted Pair Transmitters/Receiver
Determining HDCP Compliance
A dark red or an orange screen on an output display is the visual cue from DXLink devices that the
display device cannot display the HDCP compliant signal from the source.
Power Issues
Upon power up, the Power indicator LED on the front of the DXLink units illuminates solid green.
If the Power LEDs on any of the system’s equipment are not illuminated:
 Check the power cords or DXLink (RJ-45) connection if using power over the DXLink line.
 Check the power connections on the switcher if using power over the DXLink line.
 Check the power connections on the source and destination devices.
DXLink Power Delivery Issues
Unexpected power interruptions of DXLink Transmitters and Receivers may be caused by the Enova
DGX Digital Media Switcher being powered by single phase power. Connecting a ground wire to the
DXLink unit’s chassis and a common earthed ground (ideally, referenced to the switcher) will stop
power interruptions. For information on when and how to attach ground wires to DXLink units, see
page 45.
Important Power Considerations for Enova DGX Endpoint Systems
Local power – Local power (the desktop power supply) 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 Transmitters/Receivers are being powered by an Enova DGX
DXLink board or DXLink power injector (using power via the DXLink line), to maintain the
switchers power redundancy, we recommend that you:
Determine the power budget based on the Input/Output boards used and the quantity
of powered endpoints (Transmitters/Receivers); see page 54.
Do not use the local DC power jack on the module (even if the local power adapter
is turned off).
Power Issues with Enova DGX Endpoint Systems
In an Enova DGX Endpoint System when multiple endpoints (Transmitters/Receivers) cycle their power
and the DXLink connection fails, check the following:
 Check to be sure that Transmitters/Receivers being powered by the local DC jack have power.
(Local power always takes precedence.)
 Check to be sure that Transmitters/Receivers intended to be powered via the DXLink line
do not have a DC jack plugged in (even if the local power adapter is turned off). This can
cause inadvertent ground loops that can negatively affect DXLink power sensing circuits.
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