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National Instruments 777733-02 RS-232 Serial Interface

Part Number 777733-02 is the identifying part number for the National Instruments PXI-8420/2 RS-232 Serial Interface Device. This device is used for communicating with devices that operate in nonstandard baud rates ranging from 57 b/s up to 2 Mb/s. Likewise, it also comes with driver software that offers better DMA access and resource utilization and minimizes CPU usage. The 777733-02 features two non-isolated ports and works with the RS-232 serial standard. The device can achieve a maximum baud rate of 115.2 kb/s. Likewise, the size of the featured FIFO buffer is 64 bytes.

As for the power requirement of the 777733-02, the module typically draws 100 mA of current which can reach up to a maximum of 150 mA when supplied with a +5 VDC source. Likewise, when a +12 VDC supply is present, it typically draws 20 mA of current which can reach up to a maximum of 200 mA. 

The 777733-02 measures (3.94 × 6.37 in.) inches in physical dimensions and features a DB-9 male connector for I/O connections. The module is designed for indoor use only and has an operating temperature range of 0° to 55°C and a relative humidity range of 10% to 90%. On the other hand, it can be stored at a range of -20°C to 70°C at a relative humidity of 5% to 95%. Likewise, the maximum altitude where the module can be operated properly is 2000m. Furthermore, the maximum cable length for the RS-232 is the length that corresponds to a capacitance of 2500 pF. In addition, according to the human body model, the data line ESD protection for the module is ±15 kV. 

The 777733-02 meets the requirements of the following safety standards of electrical equipment for measurement, control, and laboratory use: IEC 61010-1, EN 61010-1, UL 61010-1, and CSA 61010-1. Likewise, it also meets the standards 2006/95/EC and 2004/108/EC under CE compliance. Furthermore, it also meets EMC (Electromagnetic Compatibility) standards like EN 61326 (IEC 61326), EN 55011 (CISPR 11), etc.