Enova DGX DXLink™ Twisted Pair Boards
93
Instruction Manual – Enova DGX 8/16/32/64 Digital Media Switchers
Power Budget Planning for Enova DGX 32 with DXLink Boards
Before installing an Enova DGX 32 Switcher and connecting any required DXLink Transmitters and Receivers, the
power draw for the system should be calculated in order to maintain the power redundancy of the power supplies in the
enclosure. (Each Enova DGX 32 enclosure ships with two mutually-redundant power supplies.)
Important:
If you do not want to draw power from the Enova DGX 32 enclosure’s power supplies, you must
power the DXLink Transmitter and Receiver Modules with local power (must use the provided desktop power
supply) or remote power (must be a DXLink power injector). Local or remote power always overrides power
from the switcher. If local or remote power is turned off, the DXLink Transmitters and Receivers do not power
down but immediately start drawing power from the switcher.
Power Budget Calculation
Calculating the power budget helps determine how many DXLink Transmitters and Receivers can be powered via the
Enova DGX 32 Switcher 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 via the switcher, and the calculator shows the resulting power draw.
The
Enova
DGX Configuration Tool
is located at www.amx.com/enova. If more DXLink units are required than the
switcher can support while maintaining redundancy, they
must
be powered using the provided desktop power supplies
(which must
not
be altered in any way) or a DXLink power injector; otherwise, damage may occur.
Foregoing Power Supply Redundancy
Depending on particular Enova DGX 32 Switcher 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 32 power supply fails, check the table below to determine which situation applies and any actions that
may be required:
Note:
The table above does not apply to the Enova DGX 8/16/64 because the system is capable of providing
power for the maximum number of DXLink Transmitters and Receivers required when the enclosure contains
all DXLink Twisted Pair Input and Output boards.
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 32 has
exceeded its power budget, it should operate normally with a failed power supply. For power supply replacement
information, contact technical support (see page 69).
System
Condition
Result / Required Action
Enova DGX 32
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
Transmitter or Receiver Modules 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.)
