H64 LED IO
The H64 is our standard I/O card. This is the go-to card for any kind of chest action (including direct electric action, heavily unified action, etc). We suggest these for most applications in consoles, chambers, combination actions, and any place where robust, high current, self-managing protection is required.
SAME FOOTPRINT AS LEGACY INPUT/OUTPUT CARDS
The H64 fits the exact same footprint as our original separate input/output cards (as well as our green combined I/O cards). Very early Opus-Two driver cards (serial number under 500) can be replaced with this card. No software updates to the controller are needed. The card will fit in the exact same footprint, connect the same way, and use the same mounting holes.
HIGH OUTPUT POWER
The high current card is lightly "linked" to the logic voltage - the DC supply power can provide logic power to the card, but the logic power can’t provide power to the drive circuitry. Therefore, any voltage can be supplied between 8 and 24 volts DC. The voltage applied will on the card will only be used to drive the pins on that card.
Each header (group of 8 pins) is capable of driving 6 amps total. This can be made up of any combination (6 amps on 1 pin or .75 amp on each pin), meaning this card can drive 2 ohm loads at 14 volts (for reference, 68 feet of 24 gauge telephone wire has a 1 3/4 ohm resistance). This card will drive any valve with ease.
The card can sustain current flows up to 48 amps for a long amount of time and bursts of 64 amps.
INTELLIGENT
CURRENT MONITORING
The card has a high speed processor on board that is faster than some entire control systems. This processor precisely monitors current flow to each group of outputs on a header. Should an over-current situation occur the header will be shut down digitally within 5 microseconds and an LED indicator will illuminate to aid diagnostics. Each header has a separate LED to indicate the group which an over-curent occurred. Should an over-current occur, the group of 8 notes where the fault occurred will immediately shut down instead of the entire 64 notes.