Installation and Setup
24
Hardware Reference Manual – DXLink™ Twisted Pair 4K Transmitters/Receivers
Foregoing Power Supply Redundancy
Depending on particular Enova DGX input and output board configurations, operating over the redundant power supply level may
be necessary on a permanent basis for some installations. While foregoing the benefits associated with a redundant power supply
should be understood, operating without redundancy is in no way detrimental to the system, as long as both power supplies are
operational. In this case, necessary power will be pulled evenly from both supplies. However, the loss of one power supply will
result in the system being non-operational from a normal “non-redundant” system capability perspective.
In the Event of a Power Supply Failure
If an Enova DGX power supply fails, check the table below to determine which condition* applies and any actions that may be
required:
In all of the situations 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 Digital Media Switcher has exceeded its power
budget, it should operate normally with a failed power supply.
* The over power budget condition does not apply to Enova DGX 6400 Switchers (which have four power supplies).
For additional information on power supplies and power supply troubleshooting for an Enova DGX Switcher, see the
Hardware
Reference Manual – Enova DGX 100 Series Digital Media Switchers
at www.amx.com. For power supply replacement information,
contact technical support (see page 63).
Avoiding Network (Ethernet) Loops
CAUTION:
Be careful not to create a network (Ethernet) loop.
Only one connection to a Public LAN is permitted within a switching system with DXLink support.
Network loops must be avoided
.
Example
In the example in FIG. 11, a network loop was created when the Enova DGX 1600 was connected to a Public LAN and one of its
DXLink 4K Receivers was connected to the same LAN. The DXLink 4K Receiver
must
be disconnected from the LAN.
Remember to
avoid network loops
.
System
Condition
Result/Required Action
Enova DGX 800/1600
Within power budget
The system will continue to run; okay to leave it powered until the failed
power supply is replaced.
Over power budget
The system will continue to run; however, we do not recommend leaving
it powered until the failed power supply is replaced, unless enough
DXLink Transmitter or Receiver Modules are removed (or otherwise
powered) to bring the system’s power budget within its maximum limit.
(Another option is to remove some of the input and/or output boards.)
Enova DGX 3200
Within power budget
The system will continue to run; okay to leave it powered until the failed
power supply is replaced.
Over power budget
The remaining power supply will turn off. If enough DXLink Transmitters
or Receivers are removed (or otherwise powered) to bring the system’s
power budget within its maximum limit, the system will be able to run
until the failed power supply is replaced. (You can also remove some
input and/or output boards.)
FIG. 11
Avoid network loops
LAN
Local Area Network
Enova DGX 1600
Destination device
Source device
DXLink 4K
HDMI Wallplate
NOTE:
A network loop is created when an enclosure and one or
more devices within the system are connected to a common
Public LAN (or when two DXLink Modules are connected to the
same network as a standalone pair).
DXLink 4K Receiver