Power Budget Planning For Systems With Dxlink Boards - AMX Enova DGX 8 Instruction Manual

Power Budget Planning for Systems with DXLink Boards

Before installing an Enova DGX 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 enclosure ships with two mutually-redundant power supplies.)
Important: If you do not want to draw power from the Enova DGX 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 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 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 power supply fails, check the table below to determine which situation applies and any actions
that may be required:
System
Enova DGX 8/16
Enova DGX 32
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 Switcher has
exceeded its power budget, it should operate normally with a failed power supply. For power supply replacement
information, contact technical support (see page 64).
Instruction Manual – Enova DGX 8/16/32 Digital Media Switchers
Condition
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.)
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.)
Enova DGX DXLink™ Twisted Pair Boards
Result / Required Action
89