Appendix G – Ground Wire Attachment
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Instruction Manual – DXLink™ Twisted Pair Transmitters/Receiver
Appendix G – Ground Wire Attachment
Applicability
This appendix covers attaching a ground wire to a DXLink Module without a designated ground location. If the module
has a designated ground screw, see page 47.
If the system is experiencing problems with delivery of DXLink signals to/from an Enova DGX Digital Media Switcher
or Enova DVX Solution, adding a ground wire from the TX/RX to the switcher may improve performance. The problem
is likely caused by the use of a single phase powered system that does not provide an earth ground for a source or
destination's chassis and shields. This can inject unnecessary AC voltage on the HDMI cable shield that can lead to
DXLink signal integrity issues. To check for indications of this type of power in the system, look for a two pronged plug
or a cord that has only two wires.
Note:
Technically this type of grounding is only required when a DXLink Transmitter or Receiver is connected
to an ungrounded device, but this added grounding measure can be used at the discretion of the installer.
Items Required
Small adjustable wrench or socket driver
6 foot ground wire with ring terminal ends (provided)
Note:
Currently shipping DXLink Transmitters and Receivers provide a designated ground location on the
rear of the chassis for attaching a ground wire. For instructions on attaching a ground wire to DXLink Modules
or DXLink Wallplates with a designated ground location, see page 47.
Attaching a Ground Wire to a Common Earthed Ground
Connect the running end of the ground wire (fixed end attached to DXLink Module or Wallplate) to a common earthed
ground (ideally, referenced to the Enova DGX Switcher).
Important:
If one DXLink Transmitter or Receiver is grounded, any remaining ungrounded units that are
connected to the same board on the Enova DGX Switcher must also be grounded.
Attaching a Ground Wire to Module without Designated Ground
Earlier model DXLink Transmitter and Receiver Modules without a designated location support chassis ground
attachment through the HDMI jackscrew on the rear of the chassis.
Important
: Before attaching the ground wire to the chassis, ensure all connectors are clear.
To attach a ground wire to a module with a jackscrew:
1.
If powered, power down the DXLink Module.
