The National Instruments part number 785639-01 identifies the FD-11603 Voltage Input Device for FieldDAQ, designed for precise voltage measurement in demanding industrial environments. This device features eight galvanically isolated analog input channels, ensuring signal integrity by isolating each channel from the chassis. It utilizes a 24-bit delta-sigma ADC with advanced analog prefiltering, supporting an input voltage range of ±10.5 V and offering configurable timebase frequencies of 13.1072 MHz, 12.8 MHz, 12.288 MHz, and 10.24 MHz, with a maximum accuracy of ±30 ppm. Sample rates can be adjusted from 500 samples per second to 102.4 kSamples/s, catering to a variety of applications.

Communication capabilities include support for TCP/IP and UDP protocols, utilizing multiple network ports for configuration and data transmission, including HTTP, TCP, and UDP ports. The device features two internally-switched 8-pin X-coded M12 ports for Ethernet communication with auto-negotiated rates of 10/100/1000 Mbps. It adheres to the IEEE 802.1AS protocol for network synchronization and supports a maximum cabling distance of 100 meters, with up to 15 hops per line. The device operates on a voltage input range of 9 VDC to 30 VDC, with a maximum power consumption of 7.5 W, and is equipped with a 5-pin L-coded male M12 connector for both power input and output, requiring a recommended torque of 0.6 Nm.

With physical dimensions of 7.8 inches by 3.0 inches by 1.9 inches and a weight of 1.2 kg, the FD-11603 is designed to operate reliably in extreme conditions, with an operating temperature range of -40 °C to 85 °C and humidity tolerance up to 100%. Storage temperatures can range from -40 °C to 100 °C, and the device is suitable for operation at altitudes up to 5000 meters. For optimal performance, a calibration interval of one year is recommended.