Appendix F - Ground Wire Attachment
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Hardware Reference Manual – DXLink™ Twisted Pair 4K Transmitters/Receivers
Appendix F - Ground Wire Attachment
Applicability
If the system is experiencing problems with delivery of DXLink signals to/from an Enova DGX Digital Media Switcher, 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:
Attaching ground wires to DXLink Transmitters and Receivers is only required when instructed to do so by Technical Support or
an electrical technician.
Items Required
Phillips #1 screwdriver
6 foot ground wire with ring terminal ends
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 a Module or Wallplate
IMPORTANT:
Before attaching the ground wire to the chassis, ensure all connectors are clear.
To attach a ground wire to a module or wallplate:
1.
If powered, power down the DXLink unit.
2.
Remove the designated ground screw and washer from the rear of the unit.
3.
Secure the ring terminal of the ground wire against the chassis with the ground screw and washer.
FIG. 29
Remove designated ground screw and washer
Designated ground screw and washer
