Instruction manual

Installation and Setup
35
Instruction Manual – DXLink™ Twisted Pair Transmitters/Receiver
Power Budget Calculation
Calculating the power budget helps determine how many
DXLink Transmitters and Receivers can be powered
through the Enova DGX 16/32 while maintaining power
redundancy if one of the power supplies should fail. The
Enova DGX Configuration Tool is used to determine the
switcher’s power budget. Simply enter the types of boards
and the number of DXLink Transmitters and Receivers to
be powered through the switcher, and the calculator shows
the resulting power draw. The Enova DGX Configuration
Tool is at www.amx.com/enova. If more DXLink
Transmitters and Receivers are required than the switcher
can support while maintaining redundancy, they can be
powered using the provided desktop power supplies.
Note: The Wallplate TX’s only source of power is the switcher and, therefore, must be included in the
power calculations.
Foregoing Power Supply Redundancy
Depending on particular Enova DGX 16/32 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 16/32 power supply fails, check the following to determine which situation applies:
Enova DGX 16 within its power budget – the system will continue to run; okay to leave it
powered until the failed power supply is replaced.
Enova DGX 16 over its power budget – the system will continue to run; however, we do not
recommended leaving it powered until the failed power supply is replaced, unless enough
DXLink Transmitter or Receiver Modules are removed (or powered locally) 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 32 within its power budget – the system will continue to run; okay to leave it
powered until the failed power supply is replaced.
Enova DGX 32 over its power budget – the remaining power supply will turn off. If enough
DXLink Transmitter or Receiver Modules are removed (or powered locally) 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.)
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 16/32 has exceeded its power budget, it should operate normally with a failed power supply.
For additional information on power supplies and power supply troubleshooting for an Enova DGX 16/32,
see the Instruction Manual – Enova DGX 16 and Enova DGX 32 at www.amx.com. For power supply
replacement information, contact technical support (see page 94).