{"id":28879,"date":"2025-09-15T10:44:56","date_gmt":"2025-09-15T02:44:56","guid":{"rendered":"https:\/\/pxisource.com\/?post_type=product&#038;p=28879"},"modified":"2026-09-16T15:53:23","modified_gmt":"2026-09-16T07:53:23","slug":"pxie-8381","status":"publish","type":"product","link":"https:\/\/pxisource.com\/ru\/product\/pxie-8381\/","title":{"rendered":"PXIe-8381"},"content":{"rendered":"<h3>PXIe-8381 Gen 2 x8 MXI-Express Remote Control Module<\/h3>\n<p>\u0417\u0435\u043c\u043b\u044f <strong>NI PXIe-8381<\/strong> is a single-port, Gen 2 x8 MXI-Express remote control module designed to connect a PXI Express chassis to an external desktop computer, workstation or rack-mounted controller. It installs in the system controller slot of a compatible PXI Express chassis and extends the host computer\u2019s PCI Express bus across an external cable.<\/p>\n<p>When paired with a compatible host-side MXI-Express interface and cable, the PXIe-8381 allows PXI and PXI Express instruments to appear to the operating system as locally installed PCI Express devices. This transparent architecture helps existing instrument drivers and test applications operate without requiring Ethernet-based communication or custom remote-control protocols.<\/p>\n<p>The Gen 2 x8 connection provides a theoretical link bandwidth of up to <strong>4 GB\/s in each direction<\/strong>. This makes the PXIe-8381 suitable for systems containing high-speed digitizers, data acquisition modules, RF instruments, FPGA devices and other PXI Express hardware that generates substantial amounts of measurement data.<\/p>\n<h3>Key Features of the PXIe-8381<\/h3>\n<ul>\n<li>Gen 2 x8 MXI-Express remote control module<\/li>\n<li>Designed for compatible PXI Express chassis<\/li>\n<li>Single high-speed MXI-Express port<\/li>\n<li>Eight-lane PCI Express Gen 2 connection<\/li>\n<li>Up to 4 GB\/s theoretical bandwidth in each direction<\/li>\n<li>Transparent PCI Express bus extension<\/li>\n<li>Allows an external PC to control PXI Express instruments<\/li>\n<li>Supports compatible copper cables up to 5 m<\/li>\n<li>Power and link status indicators<\/li>\n<li>Low-latency communication architecture<\/li>\n<li>Compatible with high-throughput PXI Express instruments<\/li>\n<li>Supports desktop, workstation and rack-mounted host systems<\/li>\n<li>Suitable for automated test and data acquisition systems<\/li>\n<li>Standard 3U PXI Express module format<\/li>\n<li>Occupies the chassis system controller slot<\/li>\n<\/ul>\n<h2>PXIe-8381 Technical Specifications<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Product Model<\/th>\n<td>PXIe-8381<\/td>\n<\/tr>\n<tr>\n<th>Part Number<\/th>\n<td>782362-01<\/td>\n<\/tr>\n<tr>\n<th>Product Type<\/th>\n<td>PXI Express remote control module<\/td>\n<\/tr>\n<tr>\n<th>Interface Family<\/th>\n<td>MXI-Express<\/td>\n<\/tr>\n<tr>\n<th>Interface Generation<\/th>\n<td>PCI Express Gen 2<\/td>\n<\/tr>\n<tr>\n<th>Link Width<\/th>\n<td>x8<\/td>\n<\/tr>\n<tr>\n<th>Number of MXI-Express Ports<\/th>\n<td>1<\/td>\n<\/tr>\n<tr>\n<th>Theoretical Link Bandwidth<\/th>\n<td>Up to 4 GB\/s in each direction<\/td>\n<\/tr>\n<tr>\n<th>Connection Type<\/th>\n<td>Transparent cabled PCI Express bus extension<\/td>\n<\/tr>\n<tr>\n<th>Primary Function<\/th>\n<td>External host control of a PXI Express chassis<\/td>\n<\/tr>\n<tr>\n<th>Compatible Host Architecture<\/th>\n<td>Desktop, workstation or rack-mounted computer with a compatible host-side interface<\/td>\n<\/tr>\n<tr>\n<th>Typical Host Interface<\/th>\n<td>Compatible PCIe-8381 or supported Gen 2 x8 MXI-Express host interface<\/td>\n<\/tr>\n<tr>\n<th>Compatible Copper Cable Lengths<\/th>\n<td>1 m, 3 m and 5 m options<\/td>\n<\/tr>\n<tr>\n<th>Maximum Copper Cable Length<\/th>\n<td>5 m<\/td>\n<\/tr>\n<tr>\n<th>Chassis Installation Location<\/th>\n<td>PXI Express system controller slot<\/td>\n<\/tr>\n<tr>\n<th>Module Width<\/th>\n<td>One PXI Express slot<\/td>\n<\/tr>\n<tr>\n<th>Status Indicators<\/th>\n<td>Power and link LEDs<\/td>\n<\/tr>\n<tr>\n<th>Typical Operating Temperature<\/th>\n<td>0\u00b0C to 55\u00b0C<\/td>\n<\/tr>\n<tr>\n<th>Approximate Dimensions<\/th>\n<td>4.4 \u00d7 6.9 in., standard 3U PXI Express module<\/td>\n<\/tr>\n<tr>\n<th>Approximate Module Weight<\/th>\n<td>0.42 lb., approximately 190 g<\/td>\n<\/tr>\n<tr>\n<th>Communication Software<\/th>\n<td>Transparent PCI Express operation; PXI Platform Services and applicable instrument drivers<\/td>\n<\/tr>\n<tr>\n<th>Measurement Capability<\/th>\n<td>None; interface module only<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The 4 GB\/s value represents the theoretical bandwidth of an eight-lane PCI Express Gen 2 link. Sustained application throughput depends on the host motherboard, PCI Express slot, chassis backplane, installed instruments, transfer size, DMA configuration and system software.<\/p>\n<p>The PXIe-8381 is not a standalone embedded controller and does not contain a user-accessible processor, operating system or storage drive. A compatible external host computer and host-side MXI-Express interface are required.<\/p>\n<h2>PXIe-8381 Part Number and Accessories<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Item<\/th>\n<th>Part Number<\/th>\n<th>\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435<\/th>\n<\/tr>\n<tr>\n<td>PXIe-8381<\/td>\n<td>782362-01<\/td>\n<td>Single-port Gen 2 x8 MXI-Express interface for PXI Express chassis<\/td>\n<\/tr>\n<tr>\n<td>PCIe-8381<\/td>\n<td>Verify configuration<\/td>\n<td>Host-side Gen 2 x8 MXI-Express PCI Express interface card<\/td>\n<\/tr>\n<tr>\n<td>Gen 2 x8 MXI-Express Cable<\/td>\n<td>782317-01<\/td>\n<td>1 m copper cable for compatible Gen 2 x8 MXI-Express systems<\/td>\n<\/tr>\n<tr>\n<td>Gen 2 x8 MXI-Express Cable<\/td>\n<td>782317-03<\/td>\n<td>3 m copper cable for compatible Gen 2 x8 MXI-Express systems<\/td>\n<\/tr>\n<tr>\n<td>Gen 2 x8 MXI-Express Cable<\/td>\n<td>782317-05<\/td>\n<td>5 m copper cable for compatible Gen 2 x8 MXI-Express systems<\/td>\n<\/tr>\n<tr>\n<td>Low-Profile Host Bracket<\/td>\n<td>Configuration dependent<\/td>\n<td>Allows certain host-side PCIe interfaces to fit low-profile computers<\/td>\n<\/tr>\n<tr>\n<td>\u0428\u0430\u0441\u0441\u0438 PXI Express<\/td>\n<td>Model dependent<\/td>\n<td>Compatible chassis with a PXI Express system controller slot<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>A complete PXIe-8381 remote-control system normally requires three primary components: the PXIe-8381 chassis-side module, a compatible host-side PCI Express interface and one supported MXI-Express cable.<\/p>\n<p>Verify that the cable supports <strong>Gen 2 x8 MXI-Express<\/strong>. Cables designed for older x1 or x4 MXI-Express systems may use different connectors and communication architectures and should not be assumed compatible.<\/p>\n<h3>How the PXIe-8381 Works<\/h3>\n<p>The PXIe-8381 extends PCI Express transactions from the external host computer to the PXI Express chassis. The host operating system enumerates supported instruments in the remote chassis as PCI or PCI Express devices.<\/p>\n<p>Because the connection extends the computer bus instead of converting instrument commands to Ethernet or another network protocol, the architecture provides comparatively low latency and transparent driver access.<\/p>\n<h3>External PC Control of PXI Express<\/h3>\n<p>An embedded PXI controller installs directly in the chassis and contains its own processor, memory and storage. The PXIe-8381 provides a different architecture in which the computing resources remain in an external computer.<\/p>\n<p>This allows engineers to select a workstation with the required processor, GPU, storage capacity, network interfaces and operating-system configuration while using the PXI Express chassis primarily for measurement instrumentation.<\/p>\n<h3>Gen 2 x8 MXI-Express Interface<\/h3>\n<p>The Gen 2 x8 interface uses eight PCI Express lanes. Each Gen 2 lane has a raw signaling rate of 5 GT\/s, providing a combined theoretical payload bandwidth of up to 4 GB\/s in each direction under the applicable encoding architecture.<\/p>\n<p>Actual throughput is normally lower because of protocol overhead, chipset limitations and application behavior. Large DMA transfers usually use the available bandwidth more efficiently than frequent small transactions.<\/p>\n<h3>Transparent PCI Express Operation<\/h3>\n<p>MXI-Express technology allows the external host to access PXI Express modules using their normal device drivers. Measurement software can therefore communicate with DAQ modules, digitizers, RF instruments and switching hardware without treating the chassis as a separate network computer.<\/p>\n<p>The PXIe-8381 itself does not replace the device drivers required by the installed instruments. NI-DAQmx, NI-SCOPE, NI-RFSA, NI-SWITCH or other appropriate drivers must still be installed on the host.<\/p>\n<h3>Single-Port Endpoint Architecture<\/h3>\n<p>The PXIe-8381 provides one MXI-Express port and is normally used as the endpoint connection for a single remote PXI Express chassis. It is a straightforward choice when one external computer must control one chassis.<\/p>\n<p>Applications requiring a daisy-chain connection to additional chassis should consider a compatible dual-port or multi-chassis interface such as the PXIe-8384 or another supported MXI-Express expansion solution.<\/p>\n<h3>Low-Latency Instrument Communication<\/h3>\n<p>Remote control through a cabled PCI Express link generally provides lower communication latency than network-based remote-control architectures. This can benefit applications involving repeated register access, rapid command sequences or tightly integrated instrument operation.<\/p>\n<p>Total application latency still depends on the host operating system, instrument driver, chassis architecture and measurement hardware. A remote MXI-Express connection does not by itself create deterministic real-time execution.<\/p>\n<h3>High-Throughput Data Streaming<\/h3>\n<p>The x8 Gen 2 connection is suitable for transferring large data sets from high-speed PXI Express digitizers, RF analyzers, FlexRIO devices and data acquisition modules to host memory.<\/p>\n<p>Before selecting the interface, calculate the combined sustained data rate of every instrument that may operate concurrently. Storage speed and host-memory bandwidth must also be sufficient to process or record the incoming data.<\/p>\n<h3>Copper MXI-Express Cabling<\/h3>\n<p>Supported Gen 2 x8 copper cable options include 1 m, 3 m and 5 m lengths. Shorter cables can simplify cable management, while longer versions allow the host computer to be separated from the PXI Express chassis.<\/p>\n<p>Route the cable away from pinch points, excessive bending, moving machinery and strong electromagnetic interference. Secure both connectors and do not disconnect the cable while the host or chassis is operating.<\/p>\n<h3>Power and Link Indicators<\/h3>\n<p>Front-panel power and link indicators provide basic diagnostic information. The power indicator confirms that the interface receives the required chassis power, while the link indicator shows whether communication has been established with the host-side interface.<\/p>\n<p>A powered module with no active link usually indicates a cable, host-card, boot-order, PCI Express enumeration or compatibility problem.<\/p>\n<h3>Host Computer Requirements<\/h3>\n<p>The host computer must contain a PCI Express slot compatible with the selected host-side interface. An x8 interface should be installed in a slot with sufficient physical and electrical lane support to obtain full performance.<\/p>\n<p>Some motherboards have physically large slots that provide fewer electrical lanes. Review the computer or motherboard documentation to determine the actual lane allocation, particularly when GPUs, storage controllers or other expansion cards are installed.<\/p>\n<h3>PXI Express Chassis Compatibility<\/h3>\n<p>The PXIe-8381 installs in the dedicated system controller slot of a compatible PXI Express chassis. It should not be installed in a standard peripheral instrument slot.<\/p>\n<p>Confirm chassis compatibility, system-slot cooling, backplane bandwidth and supported remote-control interfaces before ordering. The chassis manual should identify the correct system controller slot and installation procedure.<\/p>\n<h3>PXI Platform Services<\/h3>\n<p>PXI Platform Services helps the host identify the chassis and provides PXI system information, trigger routing and chassis services. Instrument drivers are installed separately according to the modules used in the system.<\/p>\n<p>NI Measurement &amp; Automation Explorer can display the chassis and installed hardware after the MXI-Express link has enumerated successfully.<\/p>\n<h3>BIOS Compatibility Considerations<\/h3>\n<p>Most compatible computers enumerate the remote PXI Express system during startup. Some host BIOS implementations may have difficulty allocating resources for a large hierarchy of PCI Express devices.<\/p>\n<p>NI MXI-Express BIOS Compatibility Software or BIOS configuration changes may be required for certain computers. Confirm compatibility before deploying the system in production.<\/p>\n<h3>Boot Order Requirements<\/h3>\n<p>The PXI Express chassis should normally be powered before the external host computer. This allows the host BIOS and operating system to detect the complete remote PCI Express hierarchy during startup.<\/p>\n<p>If the host starts before the chassis, the PXI instruments may not appear. In this situation, shut down both systems and restart them using the recommended sequence.<\/p>\n<h3>Remote Control vs Remote Desktop<\/h3>\n<p>The PXIe-8381 creates a hardware PCI Express connection; it is not a remote-desktop or Ethernet-control device. The host computer directly controls the instruments through the MXI-Express bus.<\/p>\n<p>Remote Desktop or other network software can still be used to access the host computer, but that network connection is separate from the MXI-Express hardware link.<\/p>\n<h3>Remote Control vs Embedded Controller<\/h3>\n<p>A remote-control system provides flexibility in host-computer selection and can offer easier processor, GPU and storage upgrades. An embedded controller creates a compact self-contained PXI system with fewer external components.<\/p>\n<p>The preferred architecture depends on rack space, computing requirements, portability, cable distance, maintenance strategy and operating environment.<\/p>\n<h2>PXIe-8381 Applications<\/h2>\n<ul>\n<li>Remote control of PXI Express chassis<\/li>\n<li>Automated production test systems<\/li>\n<li>\u0412\u044b\u0441\u043e\u043a\u043e\u0441\u043a\u043e\u0440\u043e\u0441\u0442\u043d\u043e\u0439 \u0441\u0431\u043e\u0440 \u0434\u0430\u043d\u043d\u044b\u0445<\/li>\n<li>\u0420\u0424 \u0438 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0435 \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435<\/li>\n<li>High-channel-count digitizer systems<\/li>\n<li>Semiconductor test equipment<\/li>\n<li>Aerospace and defense validation<\/li>\n<li>Automotive electronic testing<\/li>\n<li>Hardware-in-the-loop support systems<\/li>\n<li>Research laboratory instrumentation<\/li>\n<li>External workstation-controlled PXI systems<\/li>\n<li>Rack-mounted automated test equipment<\/li>\n<\/ul>\n<h3>Automated Production Testing<\/h3>\n<p>The PXIe-8381 allows a rack-mounted industrial computer to control PXI Express instruments used for production functional testing. The host can manage operator interfaces, test sequencing, database connections and measurement processing.<\/p>\n<h3>High-Speed Data Acquisition<\/h3>\n<p>Gen 2 x8 bandwidth supports systems that transfer continuous or burst measurement data from PXI Express DAQ modules and digitizers to host memory.<\/p>\n<p>For continuous recording, calculate the aggregate data rate and ensure that the host storage subsystem can sustain the required write performance.<\/p>\n<h3>RF and Wireless Test Systems<\/h3>\n<p>PXI RF analyzers and transceivers can generate substantial amounts of waveform data. A high-bandwidth MXI-Express connection allows an external workstation to perform RF analysis and automated test control.<\/p>\n<h3>FPGA and FlexRIO Applications<\/h3>\n<p>FPGA-based PXI Express modules can stream processed or raw data to the host. The PXIe-8381 provides a suitable connection when the host requires substantial CPU, memory or GPU resources for additional processing.<\/p>\n<h3>\u0421\u0438\u0441\u0442\u0435\u043c\u044b \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u043e\u043b\u0443\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u0438\u043a\u043e\u0432<\/h3>\n<p>Semiconductor validation and production systems often combine digital instruments, SMUs, switches and waveform hardware. Remote control allows the PXI chassis to remain near the fixture while the external computer manages test execution and data analysis.<\/p>\n<h3>Research and Laboratory Systems<\/h3>\n<p>Researchers can use an existing workstation to control a modular PXI Express system. The external-computer architecture can simplify integration with specialized software, data storage and laboratory networks.<\/p>\n<h2>PXIe-8381 Installation Workflow<\/h2>\n<h4>Step 1: Confirm the Complete System Configuration<\/h4>\n<p>Verify compatibility among the PXIe-8381, host-side interface, MXI-Express cable, PXI Express chassis, host computer and operating system.<\/p>\n<h4>Step 2: Select the Host PCI Express Slot<\/h4>\n<p>Choose a host slot that physically accepts the host interface and provides the required electrical lane width. Review motherboard lane sharing when other expansion cards are installed.<\/p>\n<h4>Step 3: Power Down All Equipment<\/h4>\n<p>Turn off and disconnect the external computer and PXI Express chassis. The PXIe-8381 and cable should not be installed or removed while either system is powered.<\/p>\n<h4>Step 4: Install the Host-Side Interface<\/h4>\n<p>Insert the compatible PCIe MXI-Express interface into the selected computer slot. Secure the bracket and ensure that the card is fully seated.<\/p>\n<h4>Step 5: Install the PXIe-8381<\/h4>\n<p>Insert the PXIe-8381 into the chassis system controller slot. Engage the injector\/ejector handle and secure the front-panel mounting screws.<\/p>\n<h4>Step 6: Connect the MXI-Express Cable<\/h4>\n<p>Connect the supported Gen 2 x8 cable between the host interface and PXIe-8381. Make sure both connectors are fully inserted and latched.<\/p>\n<h4>Step 7: Power On the PXI Express Chassis<\/h4>\n<p>Turn on the chassis first and wait for its power system to stabilize. The PXIe-8381 power indicator should illuminate.<\/p>\n<h4>Step 8: Start the Host Computer<\/h4>\n<p>Power on the host after the chassis. The BIOS and operating system should enumerate the remote PCI Express devices during startup.<\/p>\n<h4>Step 9: Verify the Link Indicator<\/h4>\n<p>Confirm that the PXIe-8381 link indicator shows an established connection. If the link remains inactive, shut down both systems before checking the cable and cards.<\/p>\n<h4>Step 10: Verify Hardware in NI MAX<\/h4>\n<p>Open NI Measurement &amp; Automation Explorer and confirm that the chassis and installed modules are detected. Run self-tests on the individual instruments where supported.<\/p>\n<h4>Step 11: Test Data Throughput<\/h4>\n<p>Run representative acquisitions using the intended instruments, rates and transfer sizes. Monitor host CPU, memory and storage performance to identify system bottlenecks.<\/p>\n<h2>PXIe-8381 Troubleshooting<\/h2>\n<h4>The Power LED Is Off<\/h4>\n<p>Confirm that the PXI Express chassis is powered and the PXIe-8381 is fully seated in the system controller slot. Inspect the chassis for power-supply or system-slot faults.<\/p>\n<h4>The Power LED Is On but the Link LED Is Off<\/h4>\n<p>Shut down both the computer and chassis. Reseat the host interface, PXIe-8381 and cable, then restart the chassis before starting the computer.<\/p>\n<h4>The Chassis Is Not Detected in NI MAX<\/h4>\n<p>Verify that PXI Platform Services and the required instrument drivers are installed. Check Windows Device Manager for PCI Express resource or enumeration errors.<\/p>\n<h4>Only Some PXI Modules Are Detected<\/h4>\n<p>The host BIOS may not have allocated sufficient address space or PCI resources for every device. Update the host BIOS and review settings such as Above 4G Decoding when supported.<\/p>\n<h4>System Performance Is Lower Than Expected<\/h4>\n<p>Confirm that the host interface is installed in a PCI Express slot providing the required electrical lane width. Check for lane sharing with a GPU, NVMe storage controller or another expansion device.<\/p>\n<h4>Communication Is Unstable<\/h4>\n<p>Inspect the cable for damage, excessive bending or incomplete connector engagement. Test with a shorter compatible cable and confirm that all cards are secured against vibration.<\/p>\n<h4>The System Works Only After Restarting<\/h4>\n<p>Use the recommended power sequence: shut down the host, turn off the chassis, power the chassis on first and then start the host computer.<\/p>\n<h4>An Instrument Driver Cannot Find Its Module<\/h4>\n<p>Confirm that the PCI Express link is active and that the correct device driver supports the installed instrument and operating system. The PXIe-8381 provides connectivity but does not replace instrument-specific drivers.<\/p>\n<h4>A New Host Computer Does Not Enumerate the Chassis<\/h4>\n<p>Review BIOS configuration, PCI Express resource allocation and operating-system compatibility. Some systems may require BIOS compatibility software or firmware updates.<\/p>\n<h4>The Cable Cannot Be Connected<\/h4>\n<p>Do not force the connector. Confirm that the cable is a Gen 2 x8 MXI-Express cable and not an x1, x4, Thunderbolt or later-generation cable with a different interface.<\/p>\n<h2>PXIe-8381 Comparison<\/h2>\n<table>\n<tbody>\n<tr>\n<th>\u041c\u043e\u0434\u0435\u043b\u044c<\/th>\n<th>Interface<\/th>\n<th>Port Configuration<\/th>\n<th>Best Suited For<\/th>\n<\/tr>\n<tr>\n<td>PXIe-8370<\/td>\n<td>Earlier-generation x4 MXI-Express<\/td>\n<td>Single port<\/td>\n<td>Legacy systems with moderate bandwidth requirements<\/td>\n<\/tr>\n<tr>\n<td>PXIe-8381<\/td>\n<td>Gen 2 x8 MXI-Express<\/td>\n<td>Single port<\/td>\n<td>High-bandwidth external control of one PXI Express chassis<\/td>\n<\/tr>\n<tr>\n<td>PXIe-8384<\/td>\n<td>Gen 2 x8 MXI-Express<\/td>\n<td>Daisy-chain interface<\/td>\n<td>Gen 2 multi-chassis expansion<\/td>\n<\/tr>\n<tr>\n<td>PXIe-8394<\/td>\n<td>Gen 3 x8 MXI-Express<\/td>\n<td>Daisy-chain interface<\/td>\n<td>Newer multi-chassis systems requiring additional bandwidth<\/td>\n<\/tr>\n<tr>\n<td>PXIe-8398<\/td>\n<td>Gen 3 x16 MXI-Express<\/td>\n<td>Single port<\/td>\n<td>Very-high-bandwidth external host connections<\/td>\n<\/tr>\n<tr>\n<td>PXIe-8301<\/td>\n<td>Thunderbolt<\/td>\n<td>Dual Thunderbolt ports<\/td>\n<td>Laptop and workstation connections using Thunderbolt<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>PXIe-8381 vs PXIe-8370<\/h3>\n<p>\u0417\u0435\u043c\u043b\u044f <a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-8370\/\">PXIe-8370<\/a> belongs to an earlier x4 MXI-Express generation. The PXIe-8381 uses a wider Gen 2 x8 link and is better suited to high-throughput PXI Express instruments.<\/p>\n<p>Existing cables and host interfaces should not be assumed interchangeable. Verify the complete interface generation and connector compatibility when upgrading.<\/p>\n<h3>PXIe-8381 vs PXIe-8384<\/h3>\n<p>The PXIe-8381 is a single-port endpoint for remote control of one chassis. The <a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-8384\/\">PXIe-8384<\/a> provides a Gen 2 x8 daisy-chain architecture for extending the connection to additional chassis.<\/p>\n<p>Select the PXIe-8381 for a simple host-to-chassis system. Select the PXIe-8384 when a supported Gen 2 multi-chassis topology is required.<\/p>\n<h3>PXIe-8381 vs PXIe-8398<\/h3>\n<p>\u0417\u0435\u043c\u043b\u044f <a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-8398\/\">PXIe-8398<\/a> uses a newer Gen 3 x16 architecture and provides substantially more potential link bandwidth. The PXIe-8381 remains suitable for established Gen 2 x8 systems and applications within its performance limits.<\/p>\n<p>Upgrading requires compatible host hardware and cables; replacing only the chassis-side module does not convert the complete system to Gen 3 x16 operation.<\/p>\n<h3>PXIe-8381 vs PXIe-8301<\/h3>\n<p>\u0417\u0435\u043c\u043b\u044f <a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-8301\/\">PXIe-8301<\/a> uses Thunderbolt connectivity and can be convenient for laptops and compact workstations. The PXIe-8381 uses a dedicated host-side PCI Express interface.<\/p>\n<p>Choose the PXIe-8381 for a conventional high-performance MXI-Express installation. Choose the PXIe-8301 when supported Thunderbolt connectivity and easier host portability are priorities.<\/p>\n<h3>PXIe-8381 vs Embedded PXI Controller<\/h3>\n<p>The PXIe-8381 requires an external computer and host adapter. An embedded controller such as the <a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-8822\/\">PXIe-8822<\/a> installs directly in the chassis and creates a self-contained PXI system.<\/p>\n<p>A remote controller provides host flexibility, while an embedded controller reduces the number of external components and cables. The right choice depends on processing requirements, space and maintenance strategy.<\/p>\n<h3>Selecting the Right Remote Control Interface<\/h3>\n<p>Evaluate link generation, lane width, sustained bandwidth, cable length, host-slot compatibility, operating-system support and the number of chassis. All interface components must belong to a compatible system architecture.<\/p>\n<h3>Why Choose the PXIe-8381?<\/h3>\n<ul>\n<li>Provides high-bandwidth remote control of PXI Express instruments<\/li>\n<li>Uses an eight-lane PCI Express Gen 2 connection<\/li>\n<li>Supports up to 4 GB\/s theoretical bandwidth per direction<\/li>\n<li>Provides transparent access to PCI and PCI Express devices<\/li>\n<li>Allows use of a powerful external workstation<\/li>\n<li>Supports copper cable lengths up to 5 m<\/li>\n<li>Offers lower latency than many network-control architectures<\/li>\n<li>Supports data-intensive automated test systems<\/li>\n<li>Includes front-panel power and link diagnostics<\/li>\n<li>Fits the dedicated system controller slot of a compatible chassis<\/li>\n<\/ul>\n<h2>PXIe-8381 Frequently Asked Questions<\/h2>\n<h4>What is the PXIe-8381?<\/h4>\n<p>The PXIe-8381 is a single-port Gen 2 x8 MXI-Express module used to control a compatible PXI Express chassis from an external computer.<\/p>\n<h4>What is the PXIe-8381 part number?<\/h4>\n<p>The standard orderable part number is <strong>782362-01<\/strong>.<\/p>\n<h4>Is the PXIe-8381 an embedded controller?<\/h4>\n<p>No. It is a remote control interface without its own user processor, operating system or storage. It requires an external host computer.<\/p>\n<h4>What additional hardware is required?<\/h4>\n<p>A complete system requires the PXIe-8381, a compatible host-side PCI Express MXI interface and a supported Gen 2 x8 MXI-Express cable.<\/p>\n<h4>What is its maximum bandwidth?<\/h4>\n<p>An eight-lane PCI Express Gen 2 link provides up to 4 GB\/s of theoretical bandwidth in each direction. Actual sustained throughput depends on the complete system.<\/p>\n<h4>What cable lengths are available?<\/h4>\n<p>Compatible copper cable options include 1 m, 3 m and 5 m lengths. The 5 m cable is the longest standard copper option for this interface family.<\/p>\n<h4>Can the PXIe-8381 use an x1 or x4 MXI cable?<\/h4>\n<p>No compatibility should be assumed. Use a cable specifically designed for the Gen 2 x8 MXI-Express interface and verify its part number before connection.<\/p>\n<h4>Which slot does the PXIe-8381 use?<\/h4>\n<p>It installs in the dedicated system controller slot of a compatible PXI Express chassis.<\/p>\n<h4>Which device should be powered on first?<\/h4>\n<p>The PXI Express chassis should normally be powered before the external host computer so the BIOS can enumerate the remote devices during startup.<\/p>\n<h4>Can it control multiple PXI Express chassis?<\/h4>\n<p>The PXIe-8381 is a single-port endpoint. A supported daisy-chain module such as the PXIe-8384 or another compatible expansion architecture is required for multi-chassis configurations.<\/p>\n<h4>Does it require instrument drivers?<\/h4>\n<p>Yes. The PXIe-8381 creates the PCI Express connection, while each installed PXI instrument still requires its appropriate NI or third-party driver.<\/p>\n<h4>Does the PXIe-8381 use Ethernet?<\/h4>\n<p>No. It extends the PCI Express bus through an MXI-Express cable and does not use standard Ethernet networking.<\/p>\n<h4>Is the PXIe-8381 compatible with current computers?<\/h4>\n<p>Compatibility depends on the host PCI Express slot, BIOS resource allocation, operating system, driver versions and the selected host interface. Verify the complete configuration before ordering.<\/p>\n<h4>What should be included when purchasing a used unit?<\/h4>\n<p>Confirm whether the offer includes only the PXIe-8381 or also includes the host card, cable and brackets. A chassis-side module alone cannot create a complete remote-control connection.<\/p>\n<h3>Recommended Related Products<\/h3>\n<ul>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pcie-8381\/\">PCIe-8381 Gen 2 x8 MXI-Express Host Interface<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-8384\/\">PXIe-8384 Gen 2 x8 Daisy-Chain MXI-Express Module<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-8370\/\">PXIe-8370 MXI-Express Remote Control Module<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-8374\/\">PXIe-8374 MXI-Express Interface Module<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-8394\/\">PXIe-8394 Gen 3 x8 MXI-Express Module<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-8398\/\">PXIe-8398 Gen 3 x16 MXI-Express Module<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-8301\/\">PXIe-8301 Thunderbolt Remote Control Module<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-1092\/\">PXIe-1092 PXI Express Chassis<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/%d0%bf%d1%8c%d0%b5-1095\/\">PXIe-1095 PXI Express Chassis<\/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\/\">View More NI PXI Controllers and Remote Interfaces<\/a><\/li>\n<\/ul>\n<h3>Request a Quote for the PXIe-8381<\/h3>\n<p>Contact us for current availability, lead time and project pricing for the <strong>NI PXIe-8381 Gen 2 x8 MXI-Express Remote Control Module<\/strong>. We can also help identify the compatible PCIe host interface, 1 m, 3 m or 5 m MXI-Express cable, PXI Express chassis and replacement remote-control modules required for your system.<\/p>","protected":false},"excerpt":{"rendered":"<p>Supported Cable Type: Copper<br \/>\nSupports Daisy Chaining: No<br \/>\nBus Connector: &#8211;<br \/>\nMXI Communication Level: MXI-Express Gen2 x8<br \/>\nMXI Bandwidth: 4 GB\/s<br \/>\nNumber of MXI Ports: 1<\/p>","protected":false},"featured_media":31858,"template":"","meta":{"_acf_changed":false},"product_brand":[18],"product_cat":[747],"product_tag":[],"class_list":["post-28879","product","type-product","status-publish","has-post-thumbnail","product_brand-national-instruments","product_cat-pxi-mxi-interfaces","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 v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ 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