這PXI國家儀器公司NI-2566(零件號:778572-66)是基于SPDT的2 A、16通道PXI繼電器模塊為通用應(yīng)用而設(shè)計(jì)。該模塊采用SPDT C型電樞繼電器。該模塊中使用的繼電器是非鎖定的，具有低熱偏移和極低的導(dǎo)通電阻。這倪PXI-2566被認(rèn)為是控制、路由和切換大電流信號的理想模塊。每個繼電器通道都有一個常開(NO)、常閉(NC)和公共(COM)端子。

利用該模塊，用戶可以實(shí)現(xiàn)16 SPDT(非鎖存)或8 DPDT拓?fù)洹＞推漭斎胩匦远?/font>PXI國家儀器公司-2566提供150 V DC、125 V交流最大開關(guān)電壓(通道到通道)和150 V DC、125 V交流、卡特彼勒I1最大開關(guān)電壓(通道到地)。由于它是一個測量類別I級模塊，因此PXI-2566設(shè)計(jì)用于承載不超過150 V的信號電壓，但是，它具有集成保護(hù)機(jī)制，可以安全承受高達(dá)800 V的脈沖電壓。

這PXI繼電器模塊提供60 W、62.5 VA (DC至60 Hz)的最大開關(guān)功率、2 A DC、2 A交流最大開關(guān)電流，并允許16個通道并行工作，同時以最大開關(guān)電流工作。中使用的繼電器倪PXI-2566模塊具有2毫秒(典型值)、4.4毫秒(最大值)繼電器操作時間和115周期/秒的最大周期速度。根據(jù)設(shè)計(jì)，該型號是一個3U單槽PXI模塊，重約250克(9盎司。).它有一個公的62針D-SUB I/O連接器，在5 V時消耗4.5瓦的功率。

The National Instruments NI PXI-2566 (Part Number: 778572-66) is a 2 A, 16-Channel, SPDT based PXI Relay Module designed for general purpose applications. This module features SPDT Form C armature relays. The relays utilized in this module are non-latching with low thermal offsets and extremely low on-resistance. The NI PXI-2566 is considered an ideal module for the controlling, routing, and switching of high-current signals. Each relay channel comes with a normally open (NO), normally closed (NC), and common (COM) terminal.

With this module, the user can achieve either 16-SPDT (non-latching) or 8-DPDT topology. As far as its input characteristics are concerned, the National Instruments PXI-2566 offers 150 V DC, 125 V AC maximum switching voltage (channel-to-channel) and 150 V DC, 125 V AC, CAT I1 maximum switching voltage (channel-to-ground). Since it is a Measurement Category I rated module, the PXI-2566 is designed to carry signal voltages no more than 150 V. However, it has an integrated protection mechanism and can withstand safely up to 800 V impulse voltage.

This PXI Relay Module offers 60 W, 62.5 VA (DC to 60 Hz) maximum switching power, 2 A DC, 2 A AC maximum switching current, and allows the parallel operation of 16 channels while operating at maximum switching current. The relays used in the NI PXI-2566 module have 2 ms (typical), 4.4 ms (maximum) relay operate time, and 115 cycles/s maximum cycle speed. By design, this model is a 3U, one slot, PXI module that weighs around 250 g (9 oz.). It has a male, 62-pin D-SUB I/O connector and consumes 4.5 watts of power at 5 V.