The National Instruments PCI-6527 is a 48-bit, parallel, isolated digital I/O board for PCI. The NI PCI-6527 has 24 digital inputs, 24 digital switch outputs, and no jumpers. With the PCI-6527, you can sense digital levels up to 28 VDC and switch currents of up to 120 mA. For new designs NI recommends using the PCI-6514 or PCI-6515 for 30 VDC range and bank optical isolation, or the PCI-6528 for 60 VDC range and channel-channel optical isolation.
