National Instruments VXIpc-871B (VXIPC-871B) VXIbus Embedded Controller

Product Description

The VXIpc-871B is a C-size embedded VXIbus computer controller manufactured by National Instruments (NI). It occupies two slots inside a VXI mainframe, powered by a 1.26 GHz Intel Pentium III processor with Intel 815E chipset. This embedded PC integrates CD-ROM drive, SCSI, GPIB, Ethernet, serial, parallel, USB and PS/2 interfaces. It follows VXIplug&play standard and supports Windows operating systems. NI has discontinued this legacy product; available stock includes surplus and refurbished units for existing automated test system maintenance.

Product Functions

• Act as embedded host computer to directly access VXI backplane registers, memory, interrupt and trigger signals for VXI instrument control
• Run Windows OS and support LabVIEW, LabWindows/CVI, NI-VISA and NI-VXI software for test program development and execution
• Integrated GPIB, Ethernet and serial ports to communicate with external instruments, HMI and host monitoring systems
• Onboard watchdog timer for program failure monitoring and system reset protection during automated test cycles
• Local storage and CD-ROM for test recipe saving, software installation, data logging and test result storage
• Support SCSI boot, network PXE boot and PC card flash boot for flexible system startup configuration
• Real-time clock with replaceable lithium battery to retain BIOS and system configuration parameters after power loss

Application Scenarios

• Aerospace and defense VXI-based automated test equipment (ATE) for avionics module verification
• Electronic product manufacturing test systems for board-level and component functional testing
• Research laboratory measurement and data acquisition platforms using VXI modular instruments
• Spare replacement for failed VXIpc-871B controllers in legacy VXI test racks
• Preventive maintenance and system overhaul for long-running VXI measurement platforms
• Spare inventory for test system integrators and factories maintaining obsolete NI VXI test equipment

Common Problems

• System boot failure: aging internal electrolytic capacitors, dead CMOS lithium battery or hard disk/flash storage damage
• VXI backplane communication failure: poor rack contact, corrupted NI-VXI driver or backplane trigger circuit abnormality
• GPIB / Ethernet communication instability: aging interface chips, cable fault or incompatible driver versions
• CD-ROM drive malfunction: optical head contamination, mechanical wear and failure to read discs
• Memory or system crash: SDRAM aging, insufficient memory or OS corruption after long-term continuous operation
• Watchdog false trigger: software timeout, EMI noise interference or abnormal interrupt signal from VXI modules
• Maintenance limitation: product obsolescence, limited spare parts and no official firmware or OS upgrade support from NI