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MedeaWiz® Hydra™
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Hydra Port 2 Input
The Hydra Port 2 can be used for a second Sprite or as an input for a motion sensor or other
trigger. The use depends on the operation Mode that you select from the table on page 4.
Port 2 has 100K weak pull-down resistors and will trigger on a +3 to +5 Volt input.
The Hydra will supply +5V power on Port 2 for a second Sprite or a motion sensor. A Sprite
should be connected to Port 1 to supply power to the Hydra and Port 2.
Do not connect a power supply to a Sprite on Port 2.
Hydra DMX Port
The DMX port is not isolated. Minimal transient suppression is provided internally by the
65HVD3082. This type of DMX receiver circuit will work fine for most applications. However
some installations with mixed equipment and / or long wire runs may generate voltages that
may damage the Hydra.
The Hydra PIC processor shares pins RC6 and RC7 with the DMX Port and Port 2. In a DMX
Mode, a 485 bus serial byte will be output on Port 2 for a 485 to TTL conversion.
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