規格
主要規格與效能（Core Specifications）
產品定位（Product Overview）
- NI PXI-8420/4 為 RS-232 Serial Interface Card 序列通訊介面模組
- 提供多埠串列通訊能力（最高支援 16 Ports 版本）
- 適用測試量測（Test & Measurement）、工業與製造應用
- 可與既有應用程式或 NI-VISA 軟體整合
- 滿足高通道數串列設備連接需求
主要技術規格（Key Specifications）
- 多埠 Serial Communication（依型號 4 / 8 / 16 Ports）
系統整合能力（System Integration）
應用領域（Application Fields）
原廠英文說明
National Instruments PXI-8420 interface cards give you connectivity to the many serial devices available for test and measurement, industrial, manufacturing, and laboratory data acquisition. Many applications simply need more serial ports than a standard PC offers. In test and measurement and laboratory applications, many instruments, such as oscilloscopes, multimeters, chromatographs, and spectrometers, use RS-232 for a low-cost connection. In manufacturing applications, devices such as barcode readers and scales also use the serial port for communicating to a host computer.The PXI 8420 interface card is available with up to 16 ports. These devices can be used as standard serial ports with existing applications or with applications written with NI-VISA.