Appendix G - Ground Wire Attachment; Attaching A Ground Wire To A Common Earthed Ground - AMX DXLink Instruction Manual

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 45.
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 45.

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.
Instruction Manual – DXLink™ Twisted Pair Transmitters/Receiver

Appendix G - Ground Wire Attachment

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