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National Instruments 778984-01 PXI Serial Interface Module.

The part number 778984-01 from National Instruments is the identifying part number for the PXI-8431-2 PXI Serial Interface Module. This module supports RS 485 and RS 422 communication standard that allows easy integration into various systems and devices. It features two ports, each port is capable of handling a maximum baud rate of 3 Mbps, making it a best choice for applications requiring high speed data transfer. It has a maximum cable length of 30 meters by EMC and surge limitations, making this module acceptable for large workspace. The module uses DB-9 male connectors, providing a familiar and easy-to-use interface for connecting serial devices. With a FIFO size of 128 bytes, it ensures efficient data handling and minimizes the risk of data loss during high-speed communication

This module is equipped with data line ESD protection with a voltage of up to ±15 kV (human body model) ensuring durability and reliability in demanding conditions. The serial interface module is not designed with an ingress protection rating and so it must not be used in environments where moist and dust are common. The 778984-01 module has an operating temperature of 0 degrees Celsius to 55 degrees Celsius and a storage temperature of -20 degrees Celsius to 70 degrees Celsius, making it suitable for harsher industrial environments. This module is designed to withstand operating humidity level ranging from 10% to 90% (non condensing) and storage humidity level of 5% to 95%, non condensing. This module is lightweight with a weight of 134 grams. 

This module is engineered to be used for indoors only with a pollution rating of 2 and it can also be mounted at maximum height of 2000 meters. To power this module, its power requirement from the PXI channels are 500 mA typical and 750 mA maximum at +5 VDC, allowing the module to operate efficiently and reliably. It has I/O connector DB-9 male connector providing a familiar and easy-to-use interface for connecting serial devices.

This module is compatible with many safety standard including the IEC 61010-1, EN 61010-1, UL 61010-1, CSA 61010-1 standards making it suitable for measurement, control, and laboratory use.