The PCI Express card WITIO-PCIe192STANDARD with its 192 digital input / output channels offers a large number of channels in a very small space. The 192 channels can be connected via three 68-pin SCSI-II connectors, with one SCSI-II connector located directly on the slot bracket. The remaining two SCSI-II connectors are on the board and can be relocated to a slot bracket using optional connector relocation sets. The 192 TTL channels can be set to 3.3V or 5V input or output levels using jumpers. The 192 TTL input / output channels can be programmed as inputs or outputs in groups of eight channels each. This TTL input and output card is suitable for input and output applications in measurement technology or control technology, where a large number of fast logic channels is required,however, no galvanic separation is necessary. If, however, electrical isolation is required, the inputs or outputs can be provided with electrical isolation using modules from the KM series with optocouplers and relays.