{"id":32644,"date":"2026-05-09T13:34:57","date_gmt":"2026-05-09T05:34:57","guid":{"rendered":"https:\/\/pxisource.com\/?post_type=product&#038;p=32644"},"modified":"2026-08-27T12:22:53","modified_gmt":"2026-08-27T04:22:53","slug":"pxie-2748","status":"publish","type":"product","link":"https:\/\/pxisource.com\/ru\/product\/pxie-2748\/","title":{"rendered":"PXIe-2748"},"content":{"rendered":"<h3>Product Introduction<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>NI PXIe-2748<\/strong> is a 3 GHz, 16&#215;1 PXI Express RF multiplexer switch module designed for automated RF test, wireless device validation, RF production test, and other applications requiring high-density RF signal routing.\n<\/p>\n<p>\nThe PXIe-2748 provides <strong>16 RF input channels routed to one common channel<\/strong>, allowing multiple RF signals or devices under test to share a single RF measurement instrument. With a switching bandwidth up to <strong>3 GHz<\/strong> \u0438 \u0430 <strong>50 \u03a9 characteristic impedance<\/strong>, the module is well suited for many RF and wireless test systems.\n<\/p>\n<p>\nThe module uses electromechanical latching relays and includes <strong>onboard relay counting<\/strong> to help monitor relay usage and support preventive maintenance in automated production environments.\n<\/p>\n<h3>Product Overview<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>National Instruments PXIe-2748<\/strong> is a high-channel-count RF multiplexer designed for PXI Express automated test systems.\n<\/p>\n<p>\nIts 16&#215;1 topology allows one RF instrument to be connected sequentially to as many as 16 RF signal paths.\n<\/p>\n<p>\nA typical configuration is:\n<\/p>\n<p>\n<strong>DUT 1 \u2500\u2510<\/strong><br \/>\n<strong>DUT 2 \u2500\u2524<\/strong><br \/>\n<strong>DUT 3 \u2500\u2524<\/strong><br \/>\n<strong>&#8230; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\u251c\u2192 PXIe-2748 \u2192 RF Analyzer<\/strong><br \/>\n<strong>DUT 16 \u2500\u2518<\/strong>\n<\/p>\n<p>\nTest software controls the PXIe-2748 to select the required DUT, route its RF signal to the measurement instrument, perform the measurement, and then switch to the next device.\n<\/p>\n<h3>Key Features<\/h3>\n<h4>16&#215;1 RF Multiplexer Architecture<\/h4>\n<p>\nThe PXIe-2748 provides a <strong>16&#215;1 RF multiplexer topology<\/strong>.\n<\/p>\n<p>\nThis architecture allows one common RF port to be connected to one of 16 RF channels under software control.\n<\/p>\n<p>\nThe configuration is particularly useful when multiple DUTs or RF signal paths need to share one expensive RF measurement instrument.\n<\/p>\n<h4>3 GHz RF Switching Bandwidth<\/h4>\n<p>\nThe PXIe-2748 supports RF signal switching up to <strong>3 GHz<\/strong>.\n<\/p>\n<p>\nThis bandwidth makes the module suitable for a broad range of RF test applications operating below 3 GHz.\n<\/p>\n<p>\nTypical applications can include:\n<\/p>\n<ul>\n<li>RF component testing<\/li>\n<li>Wireless device testing<\/li>\n<li>RF production test<\/li>\n<li>RF module validation<\/li>\n<li>Automated RF signal routing<\/li>\n<li>Multi-DUT RF testing<\/li>\n<\/ul>\n<h4>50 \u03a9 Characteristic Impedance<\/h4>\n<p>\nThe PXIe-2748 uses a <strong>50 \u03a9 characteristic impedance<\/strong>, which is standard for many RF measurement systems.\n<\/p>\n<p>\nThis allows the module to integrate with compatible 50 \u03a9 RF instruments, cables, fixtures, and devices under test.\n<\/p>\n<h4>17 MCX RF Connectors<\/h4>\n<p>\nThe PXIe-2748 provides <strong>17 gold-plated MCX jacks<\/strong> on the module.\n<\/p>\n<p>\nThese connections support the 16 RF multiplexer channels plus the common RF connection.\n<\/p>\n<p>\nCompatible MCX-based coaxial cables can be used to connect the module to RF instruments, fixtures, and DUT interfaces.\n<\/p>\n<h4>Electromechanical Latching Relays<\/h4>\n<p>\nThe PXIe-2748 uses <strong>electromechanical latching relays<\/strong> for RF signal switching.\n<\/p>\n<p>\nElectromechanical RF relays provide physical signal-path switching and are widely used in automated RF test systems.\n<\/p>\n<p>\nImportant characteristics include:\n<\/p>\n<ul>\n<li>RF signal isolation<\/li>\n<li>Repeatable switching<\/li>\n<li>Bidirectional RF signal paths<\/li>\n<li>Broad RF instrument compatibility<\/li>\n<li>Software-controlled operation<\/li>\n<\/ul>\n<h4>Onboard Relay Counting<\/h4>\n<p>\nThe PXIe-2748 includes <strong>onboard relay counting<\/strong> for monitoring relay usage.\n<\/p>\n<p>\nElectromechanical relays have a finite operating life, making relay-cycle information valuable in high-volume production environments.\n<\/p>\n<p>\nRelay counting can help engineers:\n<\/p>\n<ul>\n<li>Track switching activity<\/li>\n<li>Monitor relay utilization<\/li>\n<li>Plan preventive maintenance<\/li>\n<li>Identify heavily used signal paths<\/li>\n<li>Reduce unexpected production-test downtime<\/li>\n<\/ul>\n<h4>30 V Maximum Switching Voltage<\/h4>\n<p>\nThe PXIe-2748 supports signal switching up to approximately <strong>30 V<\/strong> within its specified operating limits.\n<\/p>\n<p>\nThe complete RF signal path should always be verified against the module voltage, current, and power specifications before use.\n<\/p>\n<h4>500 mA Maximum Switching Current<\/h4>\n<p>\nThe PXIe-2748 supports switching current up to approximately <strong>500 mA<\/strong> under its specified operating conditions.\n<\/p>\n<p>\nFor RF applications, engineers should evaluate voltage, current, RF power, frequency, insertion loss, VSWR, and connector limitations together.\n<\/p>\n<h4>PXI Express Integration<\/h4>\n<p>\nThe PXIe-2748 uses the PXI Express platform and occupies a single 3U PXI slot.\n<\/p>\n<p>\nIt can be integrated with other PXI RF and measurement instruments to create compact automated RF test systems.\n<\/p>\n<h3>Technical Specifications<\/h3>\n<table>\n<tr>\n<th>\u041f\u0430\u0440\u0430\u043c\u0435\u0442\u0440<\/th>\n<th>\u0421\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f<\/th>\n<\/tr>\n<tr>\n<td width=\"250\">Product Type<\/td>\n<td>PXI RF Multiplexer Switch Module<\/td>\n<\/tr>\n<tr>\n<td>\u041c\u043e\u0434\u0435\u043b\u044c<\/td>\n<td>NI PXIe-2748<\/td>\n<\/tr>\n<tr>\n<td>Part Number<\/td>\n<td>780587-48<\/td>\n<\/tr>\n<tr>\n<td>Platform<\/td>\n<td>PXI Express<\/td>\n<\/tr>\n<tr>\n<td>Switch Configuration<\/td>\n<td>16&#215;1 Multiplexer<\/td>\n<\/tr>\n<tr>\n<td>Number of RF Channels<\/td>\n<td>16<\/td>\n<\/tr>\n<tr>\n<td>Switch Bandwidth<\/td>\n<td>3 GHz<\/td>\n<\/tr>\n<tr>\n<td>Characteristic Impedance<\/td>\n<td>50 \u03a9<\/td>\n<\/tr>\n<tr>\n<td>\u0422\u0438\u043f \u0440\u0435\u043b\u0435<\/td>\n<td>Electromechanical, Latching<\/td>\n<\/tr>\n<tr>\n<td>I\/O Connectors<\/td>\n<td>17 Gold-Plated MCX Jacks<\/td>\n<\/tr>\n<tr>\n<td>Maximum Switching Voltage<\/td>\n<td>30 V<\/td>\n<\/tr>\n<tr>\n<td>Maximum Switching Current<\/td>\n<td>500 mA<\/td>\n<\/tr>\n<tr>\n<td>Maximum Insertion Loss<\/td>\n<td>3 dB<\/td>\n<\/tr>\n<tr>\n<td>Onboard Relay Counting<\/td>\n<td>Supported<\/td>\n<\/tr>\n<tr>\n<td>Module Size<\/td>\n<td>3U, One-Slot PXI Express<\/td>\n<\/tr>\n<tr>\n<td>Dimensions<\/td>\n<td>21.6 cm \u00d7 2.0 cm \u00d7 13.0 cm<\/td>\n<\/tr>\n<tr>\n<td>Weight<\/td>\n<td>Approximately 330 g<\/td>\n<\/tr>\n<tr>\n<td>Operating Temperature<\/td>\n<td>\u043e\u0442 0 \u00b0C \u0434\u043e 55 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Primary Applications<\/td>\n<td>RF Production Test, Multi-DUT RF Test, Wireless Test and Automated RF Signal Routing<\/td>\n<\/tr>\n<\/table>\n<h3>What Is an RF Multiplexer Switch?<\/h3>\n<p>\nAn RF multiplexer is a switching device that connects one of several RF signal paths to a common RF connection.\n<\/p>\n<p>\nFor a 16&#215;1 multiplexer:\n<\/p>\n<p>\n<strong>16 RF Channels \u2192 1 Common RF Port<\/strong>\n<\/p>\n<p>\nOnly the required channel is connected to the common port according to the test sequence.\n<\/p>\n<p>\nThis architecture allows multiple DUTs, antennas, RF modules, or signal paths to share a common RF measurement instrument.\n<\/p>\n<h3>How Does the PXIe-2748 Work?<\/h3>\n<p>\nThe PXIe-2748 uses software-controlled electromechanical relays to route one of 16 RF channels to the common connection.\n<\/p>\n<p>\nA typical automated test sequence is:\n<\/p>\n<ol>\n<li>Configure the PXIe-2748.<\/li>\n<li>Select RF Channel 1.<\/li>\n<li>Connect Channel 1 to the common RF port.<\/li>\n<li>Perform the RF measurement.<\/li>\n<li>Disconnect Channel 1.<\/li>\n<li>Select Channel 2.<\/li>\n<li>Perform the next RF measurement.<\/li>\n<li>Continue through the required channels.<\/li>\n<\/ol>\n<p>\nThis eliminates the need for manual RF cable changes during automated testing.\n<\/p>\n<h3>PXIe-2748 for RF Production Test<\/h3>\n<p>\nRF production test is one of the primary applications for the PXIe-2748.\n<\/p>\n<p>\nProduction systems frequently need to test many devices while minimizing the number of expensive RF measurement instruments.\n<\/p>\n<p>\nThe PXIe-2748 allows multiple DUTs to share a common RF analyzer or other compatible RF instrument.\n<\/p>\n<p>\nA simplified architecture is:\n<\/p>\n<p>\n<strong>16 DUT RF Outputs \u2192 PXIe-2748 \u2192 RF Analyzer<\/strong>\n<\/p>\n<p>\nThe test system automatically selects each DUT and performs the required RF measurements.\n<\/p>\n<h3>Multi-DUT RF Testing<\/h3>\n<p>\nThe high channel count of the PXIe-2748 makes it particularly useful for multi-DUT RF test systems.\n<\/p>\n<p>\nInstead of providing a dedicated RF analyzer for every DUT, the switching system can route multiple devices sequentially to a shared instrument.\n<\/p>\n<p>\nThis can help:\n<\/p>\n<ul>\n<li>Reduce RF instrumentation requirements<\/li>\n<li>Increase system channel density<\/li>\n<li>Reduce rack and chassis space<\/li>\n<li>Simplify automated RF routing<\/li>\n<li>Improve production test scalability<\/li>\n<\/ul>\n<h3>PXIe-2748 with an RF Analyzer<\/h3>\n<p>\nA common application is connecting multiple DUT RF outputs to a single RF analyzer.\n<\/p>\n<p>\nThe system architecture can be represented as:\n<\/p>\n<p>\n<strong>DUT 1 \u2500\u2510<\/strong><br \/>\n<strong>DUT 2 \u2500\u2524<\/strong><br \/>\n<strong>DUT 3 \u2500\u2524<\/strong><br \/>\n<strong>&#8230; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\u251c\u2192 PXIe-2748 \u2192 RF Analyzer<\/strong><br \/>\n<strong>DUT 16 \u2500\u2518<\/strong>\n<\/p>\n<p>\nThe switch selects the DUT to be measured while the RF analyzer remains connected to the common port.\n<\/p>\n<h3>PXIe-2748 with a Vector Signal Transceiver<\/h3>\n<p>\nThe PXIe-2748 can be combined with a compatible PXI Vector Signal Transceiver in automated RF test systems.\n<\/p>\n<p>\nA VST can provide RF generation and analysis while the PXIe-2748 manages RF routing between multiple compatible DUT connections.\n<\/p>\n<p>\nA typical architecture is:\n<\/p>\n<p>\n<strong>PXI VST \u2192 PXIe-2748 \u2192 Multiple RF DUTs<\/strong>\n<\/p>\n<p>\nThe exact switching architecture depends on whether the application requires stimulus routing, response routing, or both.\n<\/p>\n<h3>RF Device Validation<\/h3>\n<p>\nDuring RF device validation, engineers may need to connect a measurement instrument to several signal paths on a DUT or test fixture.\n<\/p>\n<p>\nThe PXIe-2748 can automate these connections for compatible signals below its 3 GHz operating bandwidth.\n<\/p>\n<p>\nTypical DUTs may include:\n<\/p>\n<ul>\n<li>RF modules<\/li>\n<li>Wireless devices<\/li>\n<li>RF amplifiers<\/li>\n<li>RF filters<\/li>\n<li>RF switches<\/li>\n<li>Communication modules<\/li>\n<li>RF front-end assemblies<\/li>\n<\/ul>\n<h3>RF Component Testing<\/h3>\n<p>\nThe PXIe-2748 can route compatible RF signals for automated component characterization.\n<\/p>\n<p>\nApplications may include testing:\n<\/p>\n<ul>\n<li>RF filters<\/li>\n<li>Amplifiers<\/li>\n<li>Attenuators<\/li>\n<li>RF switches<\/li>\n<li>RF modules<\/li>\n<li>Communication components<\/li>\n<\/ul>\n<h3>\u0422\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432<\/h3>\n<p>\nMany wireless production systems require automated routing between RF instruments and multiple devices or RF ports.\n<\/p>\n<p>\nThe PXIe-2748 can provide this routing for compatible signals within its 3 GHz frequency range.\n<\/p>\n<p>\nIts 16-channel architecture is especially useful when a large number of RF connections must be managed in a compact PXI system.\n<\/p>\n<h3>RF Signal Routing<\/h3>\n<p>\nRF switching requires more consideration than conventional low-frequency relay switching because the switch becomes part of the RF transmission path.\n<\/p>\n<p>\nImportant parameters include:\n<\/p>\n<ul>\n<li>Frequency range<\/li>\n<li>Characteristic impedance<\/li>\n<li>Insertion loss<\/li>\n<li>Return loss<\/li>\n<li>VSWR<\/li>\n<li>\u0418\u0437\u043e\u043b\u044f\u0446\u0438\u044f<\/li>\n<li>RF power<\/li>\n<li>Connector type<\/li>\n<li>Cable quality<\/li>\n<\/ul>\n<p>\nThese parameters should be evaluated across the actual operating frequency range of the test system.\n<\/p>\n<h3>Insertion Loss<\/h3>\n<p>\nInsertion loss describes the reduction in signal power caused by inserting the switch into the RF signal path.\n<\/p>\n<p>\nThe PXIe-2748 specifies maximum insertion loss up to approximately <strong>3 dB<\/strong>, depending on operating frequency and specified test conditions.\n<\/p>\n<p>\nFor accurate RF measurements, the total loss of the complete signal path should be considered:\n<\/p>\n<p>\n<strong>Total RF Path Loss = Switch Loss + Cable Loss + Connector Loss + Fixture Loss<\/strong>\n<\/p>\n<p>\nWhere required, these losses can be characterized and incorporated into the test-system calibration or compensation process.\n<\/p>\n<h3>50 \u03a9 RF System Design<\/h3>\n<p>\nThe PXIe-2748 is designed for <strong>50 \u03a9 RF systems<\/strong>.\n<\/p>\n<p>\nFor best RF performance, the complete signal chain should maintain the appropriate characteristic impedance.\n<\/p>\n<p>\nA typical signal path is:\n<\/p>\n<p>\n<strong>50 \u03a9 RF Instrument \u2192 50 \u03a9 Cable \u2192 PXIe-2748 \u2192 50 \u03a9 Cable \u2192 DUT<\/strong>\n<\/p>\n<p>\nImpedance mismatches can create signal reflections and measurement errors, particularly as frequency increases.\n<\/p>\n<h3>MCX Connectivity<\/h3>\n<p>\nThe PXIe-2748 uses MCX RF connectors to achieve high channel density within a compact PXI module.\n<\/p>\n<p>\nNI-compatible cable options include MCX-to-MCX, MCX-to-BNC, and MCX-to-SMA coaxial cables.\n<\/p>\n<p>\nThe appropriate cable should be selected according to the connector type of the RF instrument, DUT, and test fixture.\n<\/p>\n<h3>PXIe-2748 vs RF Matrix Switch<\/h3>\n<table>\n<tr>\n<th>\u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/th>\n<th>PXIe-2748 Multiplexer<\/th>\n<th>RF Matrix Switch<\/th>\n<\/tr>\n<tr>\n<td>Architecture<\/td>\n<td>16&#215;1<\/td>\n<td>Multiple Rows \u00d7 Multiple Columns<\/td>\n<\/tr>\n<tr>\n<td>Common RF Port<\/td>\n<td>1<\/td>\n<td>Multiple<\/td>\n<\/tr>\n<tr>\n<td>Routing Flexibility<\/td>\n<td>High for One-to-Many Routing<\/td>\n<td>Higher for Complex Routing<\/td>\n<\/tr>\n<tr>\n<td>Channel Density<\/td>\n<td><strong>16 RF Channels<\/strong><\/td>\n<td>Topology Dependent<\/td>\n<\/tr>\n<tr>\n<td>Primary Application<\/td>\n<td>Multiple DUTs Sharing One RF Instrument<\/td>\n<td>Complex RF Instrument-to-DUT Routing<\/td>\n<\/tr>\n<\/table>\n<h3>PXIe-2748 vs General-Purpose Multiplexer<\/h3>\n<table>\n<tr>\n<th>\u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/th>\n<th>PXIe-2748<\/th>\n<th>General-Purpose Multiplexer<\/th>\n<\/tr>\n<tr>\n<td>\u0422\u0438\u043f \u0441\u0438\u0433\u043d\u0430\u043b\u0430<\/td>\n<td><strong>RF<\/strong><\/td>\n<td>DC \/ Low Frequency<\/td>\n<\/tr>\n<tr>\n<td>\u041f\u0440\u043e\u043f\u0443\u0441\u043a\u043d\u0430\u044f \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0441\u0442\u044c<\/td>\n<td><strong>3 GHz<\/strong><\/td>\n<td>Typically Much Lower<\/td>\n<\/tr>\n<tr>\n<td>Characteristic Impedance<\/td>\n<td><strong>50 \u03a9<\/strong><\/td>\n<td>Usually Not RF Controlled<\/td>\n<\/tr>\n<tr>\n<td>Connector<\/td>\n<td>MCX<\/td>\n<td>Terminal Block \/ D-SUB \/ Other<\/td>\n<\/tr>\n<tr>\n<td>Primary Application<\/td>\n<td>RF Signal Routing<\/td>\n<td>General Measurement Scanning<\/td>\n<\/tr>\n<\/table>\n<h3>PXIe-2748 in a Complete PXI RF Test System<\/h3>\n<p>\nThe PXIe-2748 can serve as an RF routing component within a complete <a href=\"https:\/\/pxisource.com\/ru\/product-category\/%d0%bd%d0%b8\/pxi-%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d1%81\/\">PXI system<\/a>.\n<\/p>\n<p>\nA typical RF automated test platform may include:\n<\/p>\n<ul>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product-category\/%d0%bd%d0%b8\/pxi-%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d1%81\/pxi-chassis\/\">PXI \u0428\u0430\u0441\u0441\u0438<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product-category\/%d0%bd%d0%b8\/pxi-%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d1%81\/pxi-controller\/\">PXI \u041a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440<\/a><\/li>\n<li>PXIe-2748 RF Multiplexer Switch<\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product-category\/%d0%bd%d0%b8\/pxi-%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d1%81\/%d0%bc%d0%be%d0%b4%d1%83%d0%bb%d0%b8-pxi\/\">\u041c\u043e\u0434\u0443\u043b\u0438 PXI<\/a><\/li>\n<li>PXI Vector Signal Transceiver<\/li>\n<li>PXI RF Signal Generator<\/li>\n<li>PXI RF Signal Analyzer<\/li>\n<li>Additional PXI RF switches<\/li>\n<\/ul>\n<p>\nThis architecture provides integrated RF stimulus, RF measurement, switching, automation, and synchronization within one modular test platform.\n<\/p>\n<h3>Software-Controlled RF Switching<\/h3>\n<p>\nThe PXIe-2748 is designed for software-controlled automated test systems.\n<\/p>\n<p>\nTest software can automatically:\n<\/p>\n<ul>\n<li>Connect an RF channel<\/li>\n<li>Disconnect an RF channel<\/li>\n<li>Select different DUTs<\/li>\n<li>Execute channel scans<\/li>\n<li>Coordinate switching with RF measurements<\/li>\n<li>Monitor relay counts<\/li>\n<li>Automate production test sequences<\/li>\n<\/ul>\n<h3>Relay Lifetime and Maintenance<\/h3>\n<p>\nBecause the PXIe-2748 uses electromechanical relays, relay lifetime should be considered when designing high-volume production test systems.\n<\/p>\n<p>\nRelay life depends on factors such as:\n<\/p>\n<ul>\n<li>Number of switching operations<\/li>\n<li>Signal power<\/li>\n<li>Voltage and current<\/li>\n<li>Hot switching versus cold switching<\/li>\n<li>Operating environment<\/li>\n<\/ul>\n<p>\nThe onboard relay-counting capability can help maintenance teams monitor switch utilization and plan replacement or service before relay degradation affects production testing.\n<\/p>\n<h3>PXIe-2748 Selection Considerations<\/h3>\n<p>\nBefore selecting the PXIe-2748, engineers should evaluate the complete RF signal-routing requirements.\n<\/p>\n<p>\nImportant parameters include:\n<\/p>\n<ul>\n<li>Maximum RF frequency<\/li>\n<li>Required number of RF channels<\/li>\n<li>Multiplexer topology<\/li>\n<li>50 \u03a9 system compatibility<\/li>\n<li>Insertion loss<\/li>\n<li>Return loss and VSWR<\/li>\n<li>Channel isolation<\/li>\n<li>RF power level<\/li>\n<li>Switching voltage and current<\/li>\n<li>MCX cable requirements<\/li>\n<li>Relay lifetime<\/li>\n<li>PXI Express chassis compatibility<\/li>\n<\/ul>\n<h3>Industries<\/h3>\n<ul>\n<li>RF and Wireless Test<\/li>\n<li>Electronic Manufacturing<\/li>\n<li>Automated Test Equipment<\/li>\n<li>Communication Equipment<\/li>\n<li>\u0422\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u043b\u0443\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u0438\u043a\u043e\u0432<\/li>\n<li>Consumer Electronics<\/li>\n<li>Automotive Electronics<\/li>\n<li>\u0410\u044d\u0440\u043e\u043a\u043e\u0441\u043c\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0438 \u043e\u0431\u043e\u0440\u043e\u043d\u043d\u0430\u044f \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u044c<\/li>\n<li>Research and Development<\/li>\n<\/ul>\n<h3>Applications<\/h3>\n<h4>RF \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0435 \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435<\/h4>\n<p>\nThe PXIe-2748 can automatically route RF signals between multiple DUTs and a shared RF measurement instrument in high-volume production environments.\n<\/p>\n<h4>Multi-DUT RF Testing<\/h4>\n<p>\nSixteen RF channels allow multiple devices under test to share a common RF analyzer or compatible RF instrument.\n<\/p>\n<h4>Wireless Device Validation<\/h4>\n<p>\nThe 3 GHz switching bandwidth supports automated RF signal routing for compatible wireless devices and communication systems.\n<\/p>\n<h4>RF Component Testing<\/h4>\n<p>\nThe PXIe-2748 can route signals for automated testing of compatible RF amplifiers, filters, switches, attenuators, and modules.\n<\/p>\n<h4>RF Analyzer Channel Expansion<\/h4>\n<p>\nA single RF analyzer can access multiple RF signal paths through the 16&#215;1 multiplexer architecture.\n<\/p>\n<h4>Automated RF Signal Routing<\/h4>\n<p>\nSoftware-controlled switching eliminates manual RF cable changes and allows routing to be integrated directly into automated test sequences.\n<\/p>\n<h3>Recommended Related Products<\/h3>\n<table>\n<tr>\n<td width=\"190\">\n<strong>NI PXIe-2748<\/strong>\n<\/td>\n<td>\n3 GHz, 16&#215;1, 50 \u03a9 PXI RF multiplexer switch for high-density automated RF signal routing.\n<\/td>\n<\/tr>\n<tr>\n<td>\n<a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-s5090\/\"><strong>NI PXIe-S5090<\/strong><\/a>\n<\/td>\n<td>\nPXI Vector Network Analyzer for RF network and component characterization applications.\n<\/td>\n<\/tr>\n<tr>\n<td>\n<a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-5668\/\"><strong>NI PXIe-5668<\/strong><\/a>\n<\/td>\n<td>\nPXI Vector Signal Analyzer for RF spectrum, signal, and wireless measurement applications.\n<\/td>\n<\/tr>\n<tr>\n<td>\n<a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-2532b\/\"><strong>NI PXIe-2532B<\/strong><\/a>\n<\/td>\n<td>\nHigh-density PXI matrix switch for DC and lower-frequency automated signal-routing applications.\n<\/td>\n<\/tr>\n<tr>\n<td>\n<a href=\"https:\/\/pxisource.com\/ru\/product-category\/%d0%bd%d0%b8\/pxi-%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d1%81\/%d0%bc%d0%be%d0%b4%d1%83%d0%bb%d0%b8-pxi\/\"><strong>NI PXI Modules<\/strong><\/a>\n<\/td>\n<td>\nPXI instrumentation for RF testing, switching, data acquisition, source measurement, waveform generation, and automated test.\n<\/td>\n<\/tr>\n<\/table>\n<h3>Why Choose NI PXIe-2748?<\/h3>\n<ul>\n<li>3 GHz RF switching bandwidth<\/li>\n<li>16&#215;1 RF multiplexer topology<\/li>\n<li>16 RF channels<\/li>\n<li>50 \u03a9 characteristic impedance<\/li>\n<li>17 gold-plated MCX connectors<\/li>\n<li>Electromechanical latching relays<\/li>\n<li>Onboard relay counting<\/li>\n<li>Compact one-slot PXI Express architecture<\/li>\n<li>Suitable for multi-DUT RF testing<\/li>\n<li>Suitable for RF production test<\/li>\n<li>Suitable for RF analyzer channel expansion<\/li>\n<li>Software-controlled RF signal routing<\/li>\n<\/ul>\n<h3>Frequently Asked Questions<\/h3>\n<h4>What is the NI PXIe-2748?<\/h4>\n<p>\nThe NI PXIe-2748 is a 3 GHz, 16&#215;1 PXI Express RF multiplexer switch module designed for automated RF signal-routing and production-test applications.\n<\/p>\n<h4>What is the part number of the PXIe-2748?<\/h4>\n<p>\nThe NI ordering part number for the PXIe-2748 is <strong>780587-48<\/strong>.\n<\/p>\n<h4>What is the frequency range of the PXIe-2748?<\/h4>\n<p>\nThe PXIe-2748 provides RF switching bandwidth up to <strong>3 GHz<\/strong>.\n<\/p>\n<h4>How many channels does the PXIe-2748 have?<\/h4>\n<p>\nThe PXIe-2748 provides <strong>16 RF multiplexer channels<\/strong> in a 16&#215;1 configuration.\n<\/p>\n<h4>What does 16&#215;1 mean on the PXIe-2748?<\/h4>\n<p>\nA 16&#215;1 multiplexer allows one of 16 RF channels to be connected to a single common RF port under software control.\n<\/p>\n<h4>What is the characteristic impedance of the PXIe-2748?<\/h4>\n<p>\nThe PXIe-2748 has a <strong>50 \u03a9 characteristic impedance<\/strong>.\n<\/p>\n<h4>What connectors does the PXIe-2748 use?<\/h4>\n<p>\nThe PXIe-2748 provides <strong>17 gold-plated MCX jacks<\/strong> for the 16 RF channels and common connection.\n<\/p>\n<h4>What type of relays does the PXIe-2748 use?<\/h4>\n<p>\nThe PXIe-2748 uses <strong>electromechanical latching relays<\/strong>.\n<\/p>\n<h4>Does the PXIe-2748 support relay counting?<\/h4>\n<p>\nYes. The PXIe-2748 includes onboard relay counting to help monitor relay utilization and support maintenance planning.\n<\/p>\n<h4>What is the maximum switching voltage of the PXIe-2748?<\/h4>\n<p>\nThe PXIe-2748 supports up to approximately <strong>30 V<\/strong> within its specified operating limits.\n<\/p>\n<h4>What is the maximum switching current of the PXIe-2748?<\/h4>\n<p>\nThe maximum switching current is approximately <strong>500 mA<\/strong> within the specified operating conditions.\n<\/p>\n<h4>Can the PXIe-2748 be used for RF production testing?<\/h4>\n<p>\nYes. RF production testing is a primary application for the PXIe-2748. Its 16-channel architecture allows multiple DUTs to share a common RF measurement instrument.\n<\/p>\n<h4>Can the PXIe-2748 be used with an RF analyzer?<\/h4>\n<p>\nYes. Multiple DUT RF outputs can be routed through the PXIe-2748 to a single compatible RF analyzer.\n<\/p>\n<h4>Can the PXIe-2748 be used with a Vector Signal Transceiver?<\/h4>\n<p>\nYes. The PXIe-2748 can be combined with compatible PXI Vector Signal Transceivers for automated RF stimulus and measurement applications within its specified frequency and power limits.\n<\/p>\n<h4>Can the PXIe-2748 switch signals above 3 GHz?<\/h4>\n<p>\nThe PXIe-2748 is specified for RF switching up to 3 GHz. Applications requiring higher frequencies should use an RF switch designed and specified for the required frequency range.\n<\/p>\n<h4>Is the PXIe-2748 a 50 \u03a9 or 75 \u03a9 switch?<\/h4>\n<p>\nThe PXIe-2748 is designed for <strong>50 \u03a9 RF systems<\/strong>.\n<\/p>\n<h4>What cables can be used with the PXIe-2748?<\/h4>\n<p>\nCompatible cable options include MCX-to-MCX, MCX-to-BNC, and MCX-to-SMA 50 \u03a9 coaxial cables. Cable selection should match the connectors used by the RF instrument, DUT, and test fixture.\n<\/p>\n<h4>What should I check before purchasing a PXIe-2748?<\/h4>\n<p>\nBefore purchasing a PXIe-2748, verify the required RF frequency, 16&#215;1 topology, 50 \u03a9 impedance, RF power, insertion loss, isolation, VSWR, switching voltage and current, MCX connectivity, cable requirements, relay lifetime, and PXI Express chassis compatibility.\n<\/p>\n<h3>\u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>NI PXIe-2748 3 GHz 16&#215;1 PXI RF Multiplexer Switch Module<\/strong> combines 16-channel RF routing, 3 GHz bandwidth, 50 \u03a9 characteristic impedance, MCX connectivity, electromechanical latching relays, and onboard relay counting in a compact PXI Express module. It is particularly well suited for RF production test, multi-DUT testing, RF analyzer channel expansion, wireless device validation, RF component testing, and automated RF signal-routing systems.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u0428\u0438\u043d\u043d\u044b\u0439 \u0441\u043e\u0435\u0434\u0438\u043d\u0438\u0442\u0435\u043b\u044c: PXI Express<br \/>\n\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0435 \u043a\u043e\u043c\u043c\u0443\u0442\u0438\u0440\u0443\u0435\u043c\u043e\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430: 3 \u0412<br \/>\n\u0422\u0438\u043f \u0440\u0435\u043b\u0435: \u042d\u043b\u0435\u043a\u0442\u0440\u043e\u043c\u0435\u0445\u0430\u043d\u0438\u0447\u0435\u0441\u043a\u043e\u0435<br \/>\nSwitch Bandwidth: 3 GHz<br \/>\n\u0425\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0438\u043c\u043f\u0435\u0434\u0430\u043d\u0441: 5 \u041e\u043c<br \/>\nMax Insertion Loss: 3 dB<br \/>\nNumber of Channels: 16<br \/>\n\u041a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0431\u0430\u043d\u043a\u043e\u0432: 1<br \/>\n\u041f\u0440\u0435\u043a\u0440\u0430\u0449\u0435\u043d\u0438\u0435: \u041d\u0435\u0442<\/p>","protected":false},"featured_media":31696,"template":"","meta":{"_acf_changed":false},"product_brand":[18],"product_cat":[725],"product_tag":[],"class_list":["post-32644","product","type-product","status-publish","has-post-thumbnail","product_brand-national-instruments","product_cat-pxi-switches","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ 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