{"id":34578,"date":"2026-08-07T12:56:00","date_gmt":"2026-08-07T04:56:00","guid":{"rendered":"https:\/\/pxisource.com\/?post_type=product&#038;p=34578"},"modified":"2026-08-27T13:56:25","modified_gmt":"2026-08-27T05:56:25","slug":"pcie-8432-2","status":"publish","type":"product","link":"https:\/\/pxisource.com\/ru\/product\/pcie-8432-2\/","title":{"rendered":"PCIe-8432\/2"},"content":{"rendered":"<h3>Product Introduction<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>NI PCIe-8432\/2<\/strong> \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f <strong>2-port RS-232 serial interface device<\/strong> designed for PCI Express-based desktop computers, industrial PCs, and automated test systems. It provides two independent RS-232 serial communication ports for connecting instruments, controllers, embedded devices, industrial equipment, and other serial devices to a host computer.\n<\/p>\n<p>\nAs part of the National Instruments serial interface family, the PCIe-8432\/2 provides reliable hardware-based serial communication for applications requiring instrument control, device communication, automated testing, industrial automation, and legacy RS-232 system integration.\n<\/p>\n<p>\nThe PCI Express architecture allows the PCIe-8432\/2 to be installed directly into a compatible host computer, making it suitable for systems that require dedicated physical RS-232 interfaces rather than USB-to-serial adapters or network-based serial converters.\n<\/p>\n<h3>Product Overview<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>National Instruments PCIe-8432\/2<\/strong> provides two RS-232 serial ports through a PCI Express interface.\n<\/p>\n<p>\nA typical system architecture is:\n<\/p>\n<p>\n<strong>Host PC \u2192 PCI Express \u2192 PCIe-8432\/2 \u2192 RS-232 \u2192 Instruments \/ Controllers \/ Devices<\/strong>\n<\/p>\n<p>\nEach serial port can be used to communicate with compatible RS-232 equipment, allowing a single host computer to control multiple serial devices in automated measurement and industrial systems.\n<\/p>\n<h3>Key Features<\/h3>\n<h4>2-Port RS-232 Interface<\/h4>\n<p>\nThe PCIe-8432\/2 provides <strong>two independent RS-232 serial ports<\/strong>.\n<\/p>\n<p>\nThe two-port architecture is useful for systems that need to communicate with multiple serial instruments or devices from a single host computer.\n<\/p>\n<h4>RS-232 Serial Communication<\/h4>\n<p>\nThe PCIe-8432\/2 is designed for <strong>RS-232 serial communication<\/strong>, one of the most widely used interfaces for instrument control, embedded systems, industrial devices, and legacy electronic equipment.\n<\/p>\n<p>\nTypical RS-232 devices include:\n<\/p>\n<ul>\n<li>Test and measurement instruments<\/li>\n<li>Industrial controllers<\/li>\n<li>Embedded systems<\/li>\n<li>Barcode readers<\/li>\n<li>Motion controllers<\/li>\n<li>Scientific instruments<\/li>\n<li>Programmable power supplies<\/li>\n<li>Environmental chambers<\/li>\n<li>Laboratory equipment<\/li>\n<\/ul>\n<h4>PCI Express Host Interface<\/h4>\n<p>\nThe PCIe-8432\/2 installs into a compatible <strong>PCI Express slot<\/strong> in a desktop computer, industrial PC, or rackmount computer.\n<\/p>\n<p>\nThis provides a dedicated hardware interface between the computer and external RS-232 equipment.\n<\/p>\n<h4>High-Performance Serial Communication<\/h4>\n<p>\nThe PCIe-8432\/2 is designed for applications requiring reliable and repeatable serial communication between a host computer and external equipment.\n<\/p>\n<p>\nCompared with basic consumer USB-to-serial adapters, an internal PCI Express serial interface can provide a more integrated architecture for permanent automated test and industrial systems.\n<\/p>\n<h4>Independent Serial Ports<\/h4>\n<p>\nThe two RS-232 ports can be used independently, allowing the host computer to communicate with two separate serial devices.\n<\/p>\n<p>\n\u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440:\n<\/p>\n<p>\n<strong>Port 1 \u2192 Programmable Power Supply<\/strong><br \/>\n<strong>Port 2 \u2192 Environmental Chamber<\/strong>\n<\/p>\n<p>\nThe host test application can coordinate communication with both devices as part of an automated test sequence.\n<\/p>\n<h4>Hardware Flow Control<\/h4>\n<p>\nThe PCIe-8432\/2 supports standard RS-232 communication functions used in instrument and industrial applications, including hardware flow-control signals when supported by the connected equipment and selected cabling.\n<\/p>\n<p>\nFlow control can help manage communication between devices operating at different processing rates.\n<\/p>\n<h4>NI Software Integration<\/h4>\n<p>\nThe PCIe-8432\/2 can be integrated into NI-based automated test environments and used with serial communication software interfaces.\n<\/p>\n<p>\nTypical software environments can include:\n<\/p>\n<ul>\n<li>NI-VISA<\/li>\n<li>\u041b\u0430\u0431\u0412\u044c\u044e<\/li>\n<li>LabWindows\/CVI<\/li>\n<li>\u0422\u0435\u0441\u0442\u043e\u0432\u0430\u044f \u0441\u0442\u043e\u0439\u043a\u0430<\/li>\n<li>Custom Windows applications<\/li>\n<li>Instrument-control software<\/li>\n<\/ul>\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=\"270\">Product Type<\/td>\n<td>Serial Interface Device<\/td>\n<\/tr>\n<tr>\n<td>\u041c\u043e\u0434\u0435\u043b\u044c<\/td>\n<td>PCIe-8432\/2<\/td>\n<\/tr>\n<tr>\n<td>Manufacturer<\/td>\n<td>\u041d\u0430\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0435 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u044b<\/td>\n<\/tr>\n<tr>\n<td>Host Interface<\/td>\n<td>PCI Express<\/td>\n<\/tr>\n<tr>\n<td>Serial Interface<\/td>\n<td>\u0420\u0421-232<\/td>\n<\/tr>\n<tr>\n<td>Number of Serial Ports<\/td>\n<td>2<\/td>\n<\/tr>\n<tr>\n<td>Communication Type<\/td>\n<td>Asynchronous Serial Communication<\/td>\n<\/tr>\n<tr>\n<td>Port Operation<\/td>\n<td>Independent RS-232 Ports<\/td>\n<\/tr>\n<tr>\n<td>Primary Function<\/td>\n<td>PC-to-Instrument Serial Communication<\/td>\n<\/tr>\n<tr>\n<td>Installation<\/td>\n<td>Desktop \/ Industrial \/ Rackmount PC<\/td>\n<\/tr>\n<tr>\n<td>Typical Software<\/td>\n<td>NI-VISA \/ LabVIEW \/ TestStand \/ Custom Applications<\/td>\n<\/tr>\n<tr>\n<td>Primary Applications<\/td>\n<td>Instrument Control, Automation, Industrial Communication and Automated Test<\/td>\n<\/tr>\n<\/table>\n<h3>How Does the PCIe-8432\/2 Work?<\/h3>\n<p>\nThe PCIe-8432\/2 acts as a communication interface between the PCI Express bus of a host computer and external RS-232 devices.\n<\/p>\n<p>\nThe basic signal path is:\n<\/p>\n<p>\n<strong>Application Software \u2192 PCI Express Bus \u2192 PCIe-8432\/2 \u2192 RS-232 Cable \u2192 External Device<\/strong>\n<\/p>\n<p>\nCommands generated by the host application are transmitted through the appropriate serial port to the connected device. Responses from the device are received by the PCIe-8432\/2 and made available to the host application.\n<\/p>\n<h3>What Is RS-232?<\/h3>\n<p>\n<strong>\u0420\u0421-232<\/strong> is a serial communication standard widely used for point-to-point communication between computers, instruments, controllers, and electronic devices.\n<\/p>\n<p>\nRS-232 remains common in industrial and laboratory environments because many instruments and control devices use serial interfaces for command and data communication.\n<\/p>\n<p>\nTypical RS-232 communication parameters include:\n<\/p>\n<ul>\n<li>Baud rate<\/li>\n<li>Data bits<\/li>\n<li>Parity<\/li>\n<li>Stop bits<\/li>\n<li>Flow control<\/li>\n<\/ul>\n<p>\nThese parameters must be configured correctly on both the host computer and connected device for successful communication.\n<\/p>\n<h3>Instrument Control<\/h3>\n<p>\nOne of the primary applications of the PCIe-8432\/2 is controlling RS-232 instruments from an automated test computer.\n<\/p>\n<p>\nCompatible instruments can include:\n<\/p>\n<ul>\n<li>Power supplies<\/li>\n<li>Electronic loads<\/li>\n<li>Temperature controllers<\/li>\n<li>Environmental chambers<\/li>\n<li>Motion-control systems<\/li>\n<li>Measurement instruments<\/li>\n<li>Industrial controllers<\/li>\n<\/ul>\n<p>\nThe test application can send commands to the instrument and retrieve measurement data or device status through the serial connection.\n<\/p>\n<h3>\u0410\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u0438\u0441\u043f\u044b\u0442\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b<\/h3>\n<p>\nThe PCIe-8432\/2 can be integrated into automated test equipment where RS-232 instruments must operate together with other measurement hardware.\n<\/p>\n<p>\nA typical architecture can be:\n<\/p>\n<p>\n<strong>Test PC<\/strong><br \/>\n\u2193<br \/>\n<strong>PCIe-8432\/2<\/strong><br \/>\n\u2193<br \/>\n<strong>RS-232 Instruments<\/strong><br \/>\n\u2193<br \/>\n<strong>Device Under Test<\/strong>\n<\/p>\n<p>\nThe host software can coordinate serial instruments with PXI, PXIe, USB, Ethernet, or GPIB measurement equipment.\n<\/p>\n<h3>\u041f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0430\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0430\u0446\u0438\u044f<\/h3>\n<p>\nMany industrial devices continue to use RS-232 for configuration, monitoring, diagnostics, and control.\n<\/p>\n<p>\nThe PCIe-8432\/2 can provide dedicated serial connectivity for industrial computers used to communicate with these devices.\n<\/p>\n<p>\nApplications can include:\n<\/p>\n<ul>\n<li>\u0423\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043c\u0430\u0448\u0438\u043d\u043e\u0439<\/li>\n<li>Equipment monitoring<\/li>\n<li>Production automation<\/li>\n<li>Device configuration<\/li>\n<li>Data collection<\/li>\n<li>Industrial diagnostics<\/li>\n<\/ul>\n<h3>Laboratory Instrument Communication<\/h3>\n<p>\nLaboratories often contain instruments from different generations and manufacturers. Many legacy and current instruments provide RS-232 communication ports for remote control.\n<\/p>\n<p>\nThe PCIe-8432\/2 allows these instruments to be integrated into computer-controlled measurement systems without replacing equipment solely because it uses a serial interface.\n<\/p>\n<h3>Legacy Equipment Integration<\/h3>\n<p>\nRS-232 remains important for maintaining and upgrading existing automated systems.\n<\/p>\n<p>\nWhen a legacy computer is replaced with a newer PCI Express-based computer, the PCIe-8432\/2 can provide the serial communication capability required by existing RS-232 instruments.\n<\/p>\n<p>\nBefore replacing an older serial interface card, engineers should verify software, connector, cable, port, operating system, and application compatibility.\n<\/p>\n<h3>PCIe-8432\/2 vs USB-to-Serial Adapter<\/h3>\n<table>\n<tr>\n<th>\u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/th>\n<th>PCIe-8432\/2<\/th>\n<th>Typical USB-to-Serial Adapter<\/th>\n<\/tr>\n<tr>\n<td>Host Interface<\/td>\n<td><strong>PCI Express<\/strong><\/td>\n<td>USB<\/td>\n<\/tr>\n<tr>\n<td>RS-232 Ports<\/td>\n<td><strong>2<\/strong><\/td>\n<td>Device Dependent<\/td>\n<\/tr>\n<tr>\n<td>Internal Installation<\/td>\n<td><strong>\u0414\u0430<\/strong><\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>Permanent Test-System Integration<\/td>\n<td><strong>Well Suited<\/strong><\/td>\n<td>Possible<\/td>\n<\/tr>\n<tr>\n<td>NI Software Ecosystem<\/td>\n<td><strong>Designed for NI Instrument-Control Applications<\/strong><\/td>\n<td>Device Dependent<\/td>\n<\/tr>\n<tr>\n<td>Primary Application<\/td>\n<td>Automated Test \/ Industrial Systems<\/td>\n<td>General Serial Connectivity<\/td>\n<\/tr>\n<\/table>\n<h3>PCIe-8432\/2 vs PCIe-8432\/4<\/h3>\n<p>\nThe PCIe-8432 family includes configurations with different numbers of serial ports.\n<\/p>\n<table>\n<tr>\n<th>\u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/th>\n<th>PCIe-8432\/2<\/th>\n<th>PCIe-8432\/4<\/th>\n<\/tr>\n<tr>\n<td>Serial Interface<\/td>\n<td>\u0420\u0421-232<\/td>\n<td>\u0420\u0421-232<\/td>\n<\/tr>\n<tr>\n<td>Number of Ports<\/td>\n<td><strong>2<\/strong><\/td>\n<td><strong>4<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Host Interface<\/td>\n<td>PCI Express<\/td>\n<td>PCI Express<\/td>\n<\/tr>\n<tr>\n<td>Best For<\/td>\n<td>Systems Requiring Two RS-232 Ports<\/td>\n<td>Systems Requiring More RS-232 Ports<\/td>\n<\/tr>\n<\/table>\n<p>\nThe appropriate model should be selected according to the number of serial devices that must be connected to the host computer.\n<\/p>\n<h3>PCIe Serial Interface vs PXI Serial Interface<\/h3>\n<p>\nA PCIe serial interface is installed directly in an external desktop or industrial computer, while a PXI serial interface is installed in a PXI or PXI Express chassis.\n<\/p>\n<table>\n<tr>\n<th>\u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/th>\n<th>PCIe-8432\/2<\/th>\n<th>PXI\/PXIe Serial Interface<\/th>\n<\/tr>\n<tr>\n<td>Installation Platform<\/td>\n<td><strong>Host PC<\/strong><\/td>\n<td>PXI\/PXIe Chassis<\/td>\n<\/tr>\n<tr>\n<td>Host Bus<\/td>\n<td>PCI Express<\/td>\n<td>PXI\/PXI Express<\/td>\n<\/tr>\n<tr>\n<td>RS-232 Communication<\/td>\n<td>\u0414\u0430<\/td>\n<td>Model Dependent<\/td>\n<\/tr>\n<tr>\n<td>Best Application<\/td>\n<td>PC-Based Systems<\/td>\n<td>Modular PXI Test Systems<\/td>\n<\/tr>\n<\/table>\n<h3>NI-VISA Integration<\/h3>\n<p>\nThe PCIe-8432\/2 can be used with <strong>NI-VISA<\/strong> for serial instrument communication.\n<\/p>\n<p>\nNI-VISA provides a standardized software interface for communicating with instruments through interfaces such as serial, GPIB, USB, and TCP\/IP.\n<\/p>\n<p>\nA typical application workflow is:\n<\/p>\n<p>\n<strong>Open Serial Resource \u2192 Configure Port \u2192 Write Command \u2192 Read Response \u2192 Process Data \u2192 Close Resource<\/strong>\n<\/p>\n<h3>LabVIEW Applications<\/h3>\n<p>\nThe PCIe-8432\/2 can be integrated into LabVIEW applications for automated serial communication.\n<\/p>\n<p>\nTypical LabVIEW functions can include:\n<\/p>\n<ul>\n<li>Serial port configuration<\/li>\n<li>Command transmission<\/li>\n<li>Response acquisition<\/li>\n<li>\u0420\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0446\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445<\/li>\n<li>Device monitoring<\/li>\n<li>Automated test sequencing<\/li>\n<li>Error handling<\/li>\n<\/ul>\n<h3>TestStand Applications<\/h3>\n<p>\nIn automated production test systems, TestStand can coordinate serial communication with other measurement and control hardware.\n<\/p>\n<p>\nFor example, a test sequence can:\n<\/p>\n<ol>\n<li>Configure an RS-232 instrument.<\/li>\n<li>Send operating commands.<\/li>\n<li>Acquire measurements from another instrument.<\/li>\n<li>Read status information through the PCIe-8432\/2.<\/li>\n<li>Evaluate pass\/fail limits.<\/li>\n<li>Store the test results.<\/li>\n<\/ol>\n<h3>Communication Configuration<\/h3>\n<p>\nFor successful RS-232 communication, both the PCIe-8432\/2 and the connected device must use compatible serial settings.\n<\/p>\n<p>\nImportant settings include:\n<\/p>\n<ul>\n<li>Baud rate<\/li>\n<li>Data bits<\/li>\n<li>Parity<\/li>\n<li>Stop bits<\/li>\n<li>Flow control<\/li>\n<li>Termination characters<\/li>\n<\/ul>\n<p>\nIncorrect serial settings are one of the most common causes of communication failure in RS-232 systems.\n<\/p>\n<h3>RS-232 Cable Selection<\/h3>\n<p>\nThe correct serial cable depends on the connector and pinout of the connected device.\n<\/p>\n<p>\nBefore selecting a cable, verify:\n<\/p>\n<ul>\n<li>Connector type<\/li>\n<li>Connector gender<\/li>\n<li>DTE\/DCE configuration<\/li>\n<li>Straight-through or null-modem wiring<\/li>\n<li>Required hardware flow-control signals<\/li>\n<li>Cable length<\/li>\n<\/ul>\n<p>\nUsing an incorrect straight-through or null-modem cable can prevent communication even when the software configuration is correct.\n<\/p>\n<h3>Troubleshooting PCIe-8432\/2 Communication<\/h3>\n<p>\nIf an RS-232 device does not communicate correctly through the PCIe-8432\/2, check the following:\n<\/p>\n<ul>\n<li>Verify that the PCIe-8432\/2 is detected by the operating system.<\/li>\n<li>Verify that the correct NI driver is installed.<\/li>\n<li>Check the assigned serial port.<\/li>\n<li>Confirm baud rate settings.<\/li>\n<li>Confirm data bits, parity, and stop bits.<\/li>\n<li>Check hardware or software flow control.<\/li>\n<li>Verify the RS-232 cable wiring.<\/li>\n<li>Check whether a null-modem cable is required.<\/li>\n<li>Verify that another application is not using the same serial port.<\/li>\n<li>Test communication using NI MAX or an appropriate serial terminal.<\/li>\n<\/ul>\n<h3>How to Choose a Serial Interface Device<\/h3>\n<p>\nBefore selecting the PCIe-8432\/2, evaluate:\n<\/p>\n<ul>\n<li>Required serial standard<\/li>\n<li>RS-232, RS-422, or RS-485 requirement<\/li>\n<li>Number of serial ports<\/li>\n<li>Required baud rate<\/li>\n<li>Host computer interface<\/li>\n<li>Available PCI Express slots<\/li>\n<li>Connector requirements<\/li>\n<li>Cable requirements<\/li>\n<li>Flow-control requirements<\/li>\n<li>Operating system compatibility<\/li>\n<li>Driver compatibility<\/li>\n<li>Application software compatibility<\/li>\n<\/ul>\n<h3>Industries<\/h3>\n<ul>\n<li>Automated Test<\/li>\n<li>\u041f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0430\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0430\u0446\u0438\u044f<\/li>\n<li>Electronic Manufacturing<\/li>\n<li>Laboratory Measurement<\/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>\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>Scientific Research<\/li>\n<li>Production Test<\/li>\n<li>Research and Development<\/li>\n<\/ul>\n<h3>Applications<\/h3>\n<h4>Instrument Control<\/h4>\n<p>\nThe PCIe-8432\/2 can control compatible RS-232 test and measurement instruments from a PCI Express-based computer.\n<\/p>\n<h4>Industrial Equipment Communication<\/h4>\n<p>\nThe two RS-232 ports can communicate with industrial controllers, embedded equipment, and other serial devices.\n<\/p>\n<h4>Automated Production Test<\/h4>\n<p>\nThe PCIe-8432\/2 can be integrated into automated production test systems that require serial communication with instruments or devices under test.\n<\/p>\n<h4>Laboratory Automation<\/h4>\n<p>\nLaboratory instruments with RS-232 interfaces can be controlled and monitored from LabVIEW or other host applications.\n<\/p>\n<h4>Legacy System Upgrades<\/h4>\n<p>\nThe PCIe-8432\/2 can help retain existing RS-232 instruments when upgrading a test system to a newer PCI Express-based host computer.\n<\/p>\n<h3>Recommended Related Products<\/h3>\n<table>\n<tr>\n<td width=\"220\"><strong>PCIe-8432\/2<\/strong><\/td>\n<td>2-port RS-232 PCI Express serial interface device for instrument control and automated test systems.<\/td>\n<\/tr>\n<tr>\n<td><strong>PCIe-8432\/4<\/strong><\/td>\n<td>4-port PCI Express serial interface option for systems requiring additional RS-232 connections.<\/td>\n<\/tr>\n<tr>\n<td><strong>PCIe-8431 Series<\/strong><\/td>\n<td>PCI Express serial interface devices for applications requiring compatible RS-485\/RS-422 communication.<\/td>\n<\/tr>\n<tr>\n<td><strong>PXI Serial Interface Modules<\/strong><\/td>\n<td>Modular serial communication interfaces for systems built around PXI or PXI Express instrumentation.<\/td>\n<\/tr>\n<tr>\n<td><strong>NI-VISA<\/strong><\/td>\n<td>NI software architecture for communicating with serial and other instrument interfaces.<\/td>\n<\/tr>\n<\/table>\n<h3>Why Choose PCIe-8432\/2?<\/h3>\n<ul>\n<li>2 independent RS-232 serial ports<\/li>\n<li>PCI Express host interface<\/li>\n<li>Dedicated PC-based serial communication<\/li>\n<li>Designed for instrument control<\/li>\n<li>Suitable for automated test systems<\/li>\n<li>Suitable for industrial communication<\/li>\n<li>Integration with NI-VISA<\/li>\n<li>Integration with LabVIEW<\/li>\n<li>Suitable for legacy equipment integration<\/li>\n<li>Useful for laboratory automation<\/li>\n<li>Suitable for production test systems<\/li>\n<\/ul>\n<h3>Frequently Asked Questions<\/h3>\n<h4>What is the NI PCIe-8432\/2?<\/h4>\n<p>\nThe NI PCIe-8432\/2 is a PCI Express serial interface device that provides two RS-232 ports for communicating with instruments, controllers, industrial equipment, and other serial devices.\n<\/p>\n<h4>How many serial ports does the PCIe-8432\/2 have?<\/h4>\n<p>\nThe PCIe-8432\/2 provides <strong>two independent serial ports<\/strong>.\n<\/p>\n<h4>What serial standard does the PCIe-8432\/2 support?<\/h4>\n<p>\nThe PCIe-8432\/2 is designed for <strong>RS-232 serial communication<\/strong>.\n<\/p>\n<h4>What is the host interface of the PCIe-8432\/2?<\/h4>\n<p>\nThe PCIe-8432\/2 connects to the host computer through a <strong>PCI Express interface<\/strong>.\n<\/p>\n<h4>Can PCIe-8432\/2 communicate with two devices simultaneously?<\/h4>\n<p>\nYes. The two independent RS-232 ports can be used to communicate with two compatible serial devices within the same test or control system.\n<\/p>\n<h4>Can PCIe-8432\/2 be used with LabVIEW?<\/h4>\n<p>\nYes. The PCIe-8432\/2 can be integrated into LabVIEW-based serial communication and automated test applications using compatible NI software and drivers.\n<\/p>\n<h4>Can PCIe-8432\/2 be used with NI-VISA?<\/h4>\n<p>\nYes. NI-VISA can provide the software interface for communicating with serial instruments connected through the PCIe-8432\/2.\n<\/p>\n<h4>Can PCIe-8432\/2 communicate with RS-485 devices?<\/h4>\n<p>\nNo. The PCIe-8432\/2 is intended for RS-232 communication. For RS-422 or RS-485 applications, select an NI serial interface designed for the required electrical standard.\n<\/p>\n<h4>What is the difference between PCIe-8432\/2 and PCIe-8432\/4?<\/h4>\n<p>\nThe primary difference is the number of serial ports. The PCIe-8432\/2 provides two RS-232 ports, while the PCIe-8432\/4 provides four ports.\n<\/p>\n<h4>Can PCIe-8432\/2 replace a USB-to-RS-232 adapter?<\/h4>\n<p>\nIt can provide RS-232 connectivity for many of the same types of devices, but the architecture is different. The PCIe-8432\/2 is installed internally in a compatible PCI Express host computer and is generally better suited to permanent automated test and industrial system integration.\n<\/p>\n<h4>Can PCIe-8432\/2 control laboratory instruments?<\/h4>\n<p>\nYes. It can communicate with compatible laboratory instruments that provide an RS-232 interface and support remote serial commands.\n<\/p>\n<h4>Why is my RS-232 device not communicating with the PCIe-8432\/2?<\/h4>\n<p>\nCheck the serial port assignment, baud rate, data bits, parity, stop bits, flow-control settings, cable pinout, straight-through versus null-modem wiring, device communication settings, and driver configuration.\n<\/p>\n<h4>Does PCIe-8432\/2 require a special RS-232 cable?<\/h4>\n<p>\nCable requirements depend on the connected equipment. Verify the connector type, DTE\/DCE configuration, pinout, and whether the device requires a straight-through or null-modem connection.\n<\/p>\n<h4>Can PCIe-8432\/2 be used in an automated test system?<\/h4>\n<p>\nYes. Automated test and instrument control are primary applications for the PCIe-8432\/2, particularly when the test system includes RS-232 instruments or devices.\n<\/p>\n<h4>What should I check before purchasing a PCIe-8432\/2?<\/h4>\n<p>\nBefore purchasing, verify that the target equipment uses RS-232, confirm the required number of ports, communication speed, connector and cable configuration, available PCI Express slot, operating system, NI driver version, NI-VISA compatibility, and application software requirements.\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 PCIe-8432\/2 Serial Interface Device<\/strong> provides two dedicated RS-232 serial communication ports through a PCI Express host interface. Designed for instrument control, industrial equipment communication, laboratory automation, legacy system integration, and automated production testing, the PCIe-8432\/2 provides a practical way to integrate RS-232 devices into PC-based National Instruments test and measurement systems.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u041f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u044b\u0439 \u0432\u0445\u043e\u0434 \u043f\u0438\u0442\u0430\u043d\u0438\u044f: \u2013<br \/>\n\u0428\u0438\u043d\u0430: PCI Express<br \/>\nIsolation Type: Port-Port Isolation<br \/>\nNumber of Serial Channels: 2<br \/>\nSupported Serial Protocols: RS232<\/p>","protected":false},"featured_media":31169,"template":"","meta":{"_acf_changed":false},"product_brand":[18],"product_cat":[674],"product_tag":[],"class_list":["post-34578","product","type-product","status-publish","has-post-thumbnail","product_brand-national-instruments","product_cat-pci-usb","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\/ -->\n<title>NI PCIe-8432\/2 PCIe RS232 Serial Interface Device 781744-01, In Stock | Project Pricing<\/title>\n<meta name=\"description\" content=\"NI PCIe-8432\/2 is a 2-port RS-232 PCI Express serial interface device for high-performance communication, industrial control, automation and test systems.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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