AMX Optima AVS-OP-1616-110 Instruction Manual page 125

DVI Input/Output Boards
High-Amperage DVI Outputs on the 8x8 DVI Board
The first set of four connectors (Outputs 1 through 4) on the 8x8 DVI board are high-amperage outputs,
supplying 1 A of maximum cumulative power to destination devices across them. The second set of four
connectors (Outputs 5 through 8) supply 270 mA of maximum cumulative power capability across them.
Important: We recommend checking the documentation for the destination devices for information
about specific power requirements.
If the total power draw of all destination devices connected to either set of four connectors (see above)
exceeds the DVI board's maximum over-current level for those connectors, that set of four connectors
will go into a "protection" condition and shut down to avoid damage to the system. To avoid over-
current shutdown, check the system (during initial installation) for destination devices that may exceed
the DVI board's over-current level using the following steps.
Checking for Potential Over-Current Shutdown (applies to initial setup of the Optima system)
To check for potential over-current shutdown:
1.
Follow the instructions for initial installation starting on page 17.
For the 8x8 DVI board only, modify Step 7 on page 20 by following Steps 2 through 9 below.
2.
Attach the first destination device to Output 1.
3.
Cycle power to the Optima and the first destination device.
4.
Note the device attached to Output 1 to see if it still has power (visually check for display).
If the device does not have power, go to Step 8.
If the device has power, attach the second destination device to Output 2.
5.
Cycle power to the Optima and the two destination devices.
6. Note the destination devices to see if they still have power (visually check for display).
7. Repeat Steps 2 through 6 with the third destination device being attached to Output 3, and so on for
the remaining devices and connectors.
8. If a set of four connectors shuts down (destination devices lose power) after attaching a device,
replace or eliminate that device.
Tip: If the device is attached to one of the second set of outputs (5 through 8), it may resolve the
problem to attach the device to one of the first set of outputs (1 through 4), which have a higher
output power rating.
9.
After all the destination devices are connected, cycle power to the Optima and all the destination
devices.
Troubleshooting When Protection Condition Occurs During Operation
When a protection condition occurs, first, check each destination device separately for any obvious
malfunction. If there is no obvious problem with any of the devices, see the following information and
troubleshooting procedure.
In this following example, an Optima system is set up and running with all DVI outputs connected to
destination devices. An unexpected occurrence causes Destination 3 to draw more power than the board
supports and results in a protection condition (Destinations 1 through 4 do not receive power).
118 Optima Instruction Manual