Control and monitor 4 Form C (SPDT) relay outputs via any USB connection with the ELK-UDIO8115. The high-current Form C relays can switch up 6A loads at 250VAC and 5A loads at 100VDC. Each Form C relay has a discrete common and can be wired for either normally open or normally closed operation. 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-UDIO8115 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-UDIO8115 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..