Telnet Access To Dxlink Endpoints; Serial Data Transfer And Ir Flow Control; Dxlink Twisted Pair / Dxlink Twisted Pair 4K Compatibility; Troubleshooting Audio - AMX Enova DGX 100 Series Hardware Reference Manual

IMPORTANT: If auto-setup is being used, Telnet is the only way to access some of the network settings. Also note that some
network settings will disable the auto-setup feature (reference the section "Need to Know for Auto-setup" on page 121).

Telnet Access to DXLink Endpoints

1.
Connect a PC to the ICS LAN port on the left side of the Switcher's CPU.
2.
Open NetLinx Studio.
3.
In the OnLine Tree, listen for the 198.18.0.1 device (internal Master IP) and establish a connection.
4.
Right-click the endpoint and select TELNET Window/Launch TELNET Window via NetLinx Studio.
NOTE: For additional information on DXLink Modules and Wallplates, see the "Hardware Reference Manual – DXLink
Twisted Pair Transmitters/Receiver."

Serial Data Transfer and IR Flow Control

FIG. 46 shows the bidirectional serial data transfer and IR flow control when an Enova Digital Media Switcher is used with
DXLink Modules connected to both input and output boards.
The switcher has an integrated NetLinx NX Central Control Processor which provides native AMX control at each remote
location fed by a DXLink Transmitter or Receiver. Control is sent over twisted pair cable via the DXLink ports:
FIG. 46
Serial data transfer and IR flow control

DXLink Twisted Pair / DXLink Twisted Pair 4K Compatibility

By default, DXLink 4K Input Boards provide a 4K EDID to all connected DXLink Transmitter devices. While DXLink Transmitters
are supported by the DXLink 4K Input Board, the default EDID provided to the Transmitter may result in a source device
(computer, media player, etc) presenting a video resolution out of the Transmitter's range. To ensure the source device
presents a resolution the DXLink Transmitter can support, simply use the Enova DGX 100 Series System Configuration
interface to select a non-4K EDID (All, Wide, Full in non-4K range) to ensure a supported format is requested by the DXLink
Transmitter.
Some older DXLink Twisted Pair Receivers are not compatible with DXLink Twisted Pair 4K Output Boards. Receiver and
DXLink Twisted Pair 4K Output Board compatibility are established through:
In NetLinx Studio – If the Receiver is referenced as "DXLINK-HDMI-RX.c" (ends in ".c"), the Receiver is incompatible.

Receivers with the suffix ".e" are fully compatible with DXLink Twisted Pair 4K Output Boards.
On the physical endpoint – If the Receiver has a date code of less than 26D (e.g., 1010500AP18C0034 has a date

code of 18C), the Receiver is incompatible. Receivers with a date code of 26D or greater (e.g.,
1010500AP27E0034) are fully compatible with DXLink Twisted Pair 4K Output Boards.
NOTE: Compatibility is available between DXLink Twisted Pair equipment and DXLink Twisted Pair 4K equipment. Refer to
the "DXLink Compatibility" Appendix in the "DXLink Twisted Pair 4K Transmitters and Receivers Hardware Reference
Manual" for details.

Troubleshooting Audio

Problem
Audio not present or intermittent with good video.
A signal containing both video and audio must have space for both signal portions. The audio
signal portion lies in the blanked portion of the video signal. High Bit Rate Audio (HBRA) requires
a larger than normal space in the blanked area of the signal. Video formats with reduced
blanking normally provide enough space for audio signals.
In a signal that combines a video format with reduced blanking and HBRA, the HBRA signal is
truncated and can present as either no audio or as problematic audio (static, clicking, absent,
etc.).
While Enova DGX hardware supports both HBRA and reduced blanking video formats, these
formats do not necessarily work with one another.
Enova Digital Media Switchers - Hardware Reference Manual
DXLink Twisted Pair Input and Output Boards
Solution
Change either the audio format to non-
HBRA or change the video format to a
format that does not use reduced
blanking.
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