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Manual PCIe-DIO-48S PCI Express Digital I/O Card
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VCCIO Resettable Fused Outputs
There are two 0.5A resettable fuses. Each fuse feeds one I/O connector at pin 49 used to power
external module racks, relay boards, or for general purposes. If an over-current persists on a circuit
protected by the resettable fuse, it will open interrupting power to the circuit. The amount of time it
takes the fuse to act depends on the amount of over-current and other conditions such as ambient
temperature, humidity, etc. The fuse will remain open until the bi-metal elements cool sufficiently, at
which time the circuit will be restored.