DXLink Twisted Pair Input and Output Boards
119
Enova Digital Media Switchers - Hardware Reference Manual
In both the situations in the table above, the power supply should be replaced as soon as possible to restore power
redundancy to the system or to allow the system to become fully operational again. Unless the Enova DGX 3200 has
exceeded its power budget, it should operate normally with a failed power supply. For power supply replacement
information, contact technical support.
Connecting Switching Systems with DXLink Connectors
Switching systems with DXLink Twisted Pair support (e.g., an Enova DGX Switcher and an Enova DVX-3150HD) can be
connected via their DXLink (RJ-45) ports.
IMPORTANT:
This section does not refer to the linking of enclosures from CPU to CPU, which is not supported in the Enova
DGX Switcher.
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 > DVX-3250HD (out a DXLink/HDMI port) >
DGX 3200, DXLink input (out a DXLink port) > DGX 1600, DXLink input (out a DXLink port) > DXLink Receiver >
display device as an HDMI signal.
Network loops
must
be avoided (see below).
Avoiding Network (Ethernet) Loops
See page 55.
Important Twisted Pair 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 Cat6 (or better).
DXLink twisted pair 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.
NOTE:
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.
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. 44):
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.
FIG. 44
Twisted pair cable pinouts for T568A and T568B
