Control and monitor 4 optically isolated inputs and 4 Form C (SPDT) relay outputs via any USB connection with the ELK-UDIO8112. Inputs can range from 5-30VDC, while the high-current Form C relays can switch up 6A loads at 250VAC and 5A loads at 100VDC. The Form C relays can be wired for either normally open or normally closed operation. Each Form C relay has a discrete common and each pair of inputs share a common. Status LEDS display I/O activity and field wiring is simplified via 3.5mm removable terminal blocks. The software suite supports the this family and is designed to work with third party applications via the API . The software drivers and utilities make installation and operation easy using Windows 2000, XP and Vista operating systems. The ELK-UDIO8112 integrates USB port, which is fully compatible with standard USB cables. When used with the included USB cable with USB type B connector, the metal thumbscrew provides a secure connection to the device and prevents accidental cable disconnection. These modules are housed in a rugged, attractive plastic enclosure ideal for mounting on walls, under counters, or inside panels. The ELK-UDIO8112 is USB bus powered, so no external power supply is needed. Standard operating temperature range of this module is 0°C to 70°C and extended temperature range (-40°C to +85°C) is optional.