Features summary
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20 GPI inputs sharing a common 0V rail
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All GPI inputs are isolated by optocouplers
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All GPI inputs are internally tied to a floating +5V with pull-up resistors
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Each GPI input is triggered by connecting it to the floating common 0V rail
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Any GPI input can be configured to serve any video router output
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Allows grouping of arbitrary number of GPI inputs on multiple video router outputs
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All GPI inputs are equipped with hardware debouncing circuits providing clean interfacing of joystick mechanical switches
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Interface delay is between 20ms to 60ms approx. from contact closure to command send to the video router
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actual delay depends on the joystick mechanical contact bouncing
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overall delay may further increase slightly if the video router actively uses its video reference input for vertical interval synchronous switching
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Control is based on Raspberry Pi microcomputer
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Communication between JOyVerride interface and video router goes over Ethernet
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Configuration of credentials and network parameters has to be done in terminal mode, either by attaching a monitor with HDMI input and a USB keyboard directly to the unit, or via SSH remote session over network, or via serial remote session over USB serial connection
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Configuration changes are protected against unauthorized access, based on standard Linux user rights levels
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An alphanumeric 20×2 LCD display is provided on front panel for general status information
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Is built in a robust 1U rackmount enclosure, with internal power supply and IEC power connector