GPIB-140 | 擴(kuò)展器 接收來自發(fā)射擴(kuò)展器的串行或并行信號
描述： GPIB-140A，GPIB設(shè)備數(shù)量增加到26個，GPIB擴(kuò)展器
NI GPIB-140A (部件號： 777997-01， 777997-02， 777997-03， 777997-04， 777997-05 和 777997-06) 是一款 GPIB 總線擴(kuò)展器。該設(shè)備可輕松消除 IEEE 488 標(biāo)準(zhǔn)強(qiáng)制要求的電纜長度和設(shè)備負(fù)載相關(guān)限制。GPIB-140A 完全兼容 IEEE 488.1 和 IEEE 488.2 標(biāo)準(zhǔn)。根據(jù) IEEE 488 標(biāo)準(zhǔn)，任何 GPIB 系統(tǒng)的總長度都不能超過 20 m。一對GPIB延長器可以達(dá)到1公里的總距離，無需任何修改，也不會影響用戶GPIB系統(tǒng)的完整性。
這款GPIB延長器可以支持長達(dá)1公里的光纜。NI GPIB-140A 采用 緩沖 傳輸 技術(shù)， 使 該 型號 成為 目前 最 快 的 GPIB 總 線 擴(kuò)展 器 之一。使用此型號，用戶在 HS488 協(xié)議下運(yùn)行時可以實現(xiàn)超過 2.8 MB 的速度。該GPIB擴(kuò)展器可以毫不費(fèi)力地部署，不需要額外的硬件。在典型場景中，計算機(jī)設(shè)備的一端連接到電纜延長器。在遠(yuǎn)端，GPIB儀器連接到類似的電纜延長器。然后，兩個電纜延長器通過光纖電纜互連。
每 臺 NI GPIB-140A 都 持續(xù) 監(jiān)測 GPIB 活動， 并 將 GPIB 信號 轉(zhuǎn)換 成 并行 或 串行 信號， 以便 傳輸 到 接收 擴(kuò)展 器。接收擴(kuò)展器接收來自發(fā)射擴(kuò)展器的串行或并行信號，并將其轉(zhuǎn)換為 IEEE 488 信號。NI GPIB-140A 無需對現(xiàn)有軟件應(yīng)用程序進(jìn)行修改，因為它是軟件透明的。
Description: GPIB-140A, the number of GPIB devices increased to 26, GPIB extenders
The NI GPIB-140A (part number: 777997-01, 777977-02, 777977-03, 777977-04, 777977-05 and 777977-06) is a GPIB bus extender. The device easily eliminates cable length and device load related limitations imposed by the IEEE 488 standard. The GPIB-140A is fully compatible with IEEE 488.1 and IEEE 488.2 standards. According to the IEEE 488 standard, the total length of any GPIB system cannot exceed 20 m. A pair of GPIB extenders can achieve a total distance of 1 km without any modification and without compromising the integrity of the user's GPIB system.
The GPIB extender can support up to 1 km of cable. The NI GPIB-140A uses buffered transmission technology, making this model one of the fastest GPIB bus extenders available today. With this model, users can achieve speeds of more than 2.8 MB when running under the HS488 protocol. The GPIB extender can be deployed effortlessly and requires no additional hardware. In a typical scenario, one end of a computer device is connected to a cable extender. At the far end, the GPIB instrument is connected to a similar cable extender. The two cable extenders are then interconnected via a fiber optic cable.
Each NI GPIB-140A continuously monitors GPIB activity and converts GPIB signals into parallel or serial signals for transmission to the receive extender. The receive extender receives a serial or parallel signal from the transmit extender and converts it into an IEEE 488 signal. The NI GPIB-140A does not require modifications to existing software applications because it is software-transparent.
