DXLink Twisted Pair 4K Input and Output Boards
130
Enova Digital Media Switchers - Hardware Reference Manual
In an installation with a multiple-stage switching system, the following applies:
When two switching systems with DXLink support are connected via their DXLink ports, only video and audio will be
passed through the DXLink connection.
When a DXLink input or output on one switching system determines that it is connected to a DXLink input or output
on another switching system, the DXLink port will automatically disable all Ethernet, power, and control on that
connection port so that the only things passed down the DXLink line are the video and audio signals.
When connecting switching systems via DXLink ports, AMX recommends
no more than 3 switcher throughputs.
For
example, the path through 3 switchers could be: source device > DXLink Transmitter > Enova DGX 800 (out a
DXLink port) > Enova DGX 6400, DXLink input (out a DXLink port) > Enova DGX 1600, DXLink input (out a DXLink port)
> DXLink Receiver > display device as an HDMI signal.
Network loops
must
be avoided (see the following page).
Avoiding Network (Ethernet) Loops
See the
Avoiding Network (Ethernet) Loops
Important DXLink Twisted Pair 4K Cabling Requirements and Recommendations
The following requirements and recommendations apply to cabling DXLink (RJ-45) connectors:
DXLink cable runs require shielded category cable (STP) of Cat6A or Cat7.
DXLink cable runs for DXLink equipment shall only be run within a common building.
NOTE:
A Common building is a building in which the walls of the structure(s) are physically connected and the
structure(s) share a single ground reference.
DXLink delivers 10.2 Gb/s throughput over shielded category cable. Based on this bandwidth requirement, we
recommend following industry standard practices designed for 10 Gigabit Ethernet when designing and installing
the cable infrastructure.
The cables should be no longer than necessary to reach the end-points. We recommend terminating the cable to
the actual distance required rather than leaving any excess cable in a service loop.
For complete cable specifications, see the board’s specifications.
For more details and helpful cabling information, reference the white paper titled "Cabling for Success with DXLink"
available at www.amx.com or contact your AMX representative.
NOTE:
DXLink Twisted Pair 4K cable runs include support for up to two (2) patch cables of up to 5 meters in length each,
provided that the total end-to-end cable length does not exceed 80 meters and all cables and couplers/patch panels
used in the run meet the minimum cable requirements (e.g., from DX-TX-DWP-4K to 5m patch cable, 70m cable run, 5m
patch cable to DXLink 4K Input Board using shielded Cat6A or better for each cable length).
Twisted Pair Cable Pinouts
Use either the T568A or T568B pinout specification for termination of the twisted pair cable used between the Transmitter or
Receiver and the enclosure (FIG. 50):
Connecting Sources and Destinations to DXLink Inputs and Outputs via TX/RX
1.
Attach an HDMI cable from the source device to the HDMI connector on the DXLink Transmitter.
2.
Attach a twisted pair cable to the DXLink Transmitter’s Output (RJ-45) connector.
3.
Attach the other end of the twisted pair cable to the input connector on the DXLink Input Board.
4.
Attach a second twisted pair cable to the output connector on the DXLink Output Board.
5.
Attach the other end of the second twisted pair cable to the Input (RJ-45) connector on the DXLink Receiver.
6.
Attach a second HDMI cable to the HDMI Output connector on the Receiver.
7.
Attach the other end of the second HDMI cable to the destination device.
8.
Repeat steps above for additional source and destination devices.
9.
If the enclosure is not being used as the source of power, attach the provided desktop power supplies to the
receivers.
NOTE:
If the enclosure already has power applied, as soon as transmitters and receivers are connected they will have
power.
FIG. 50
Twisted pair cable pinouts for T568A and T568B
