描述
干扰造成的故障的事例也不少。系统的干扰信号可能来自于系统本身,也可能来自于外部环境。由于不同的系统对接地都有严格要求的规定,一旦接地电阻或接地方式达不到要求,就会使网络通信的效率降低或增加误码的可能,轻则造成部分功能不正常,重则导致网络瘫痪。
National Instruments PC-TIO-10 ISA card counter/timer
National Instruments AT-GPIB/TNT (Plug & Play) Board
M-Series NATIONAL INSTRUMENTS PCI-6251 Hi-Speed DAQ
National Instruments PCI-GPIB IEEE 488.2 183617K-01
NATIONAL INSTRUMENTS NI PCI-GPIB IEEE 488.2 TESTED G
National Instruments PCI-6033E MULTIFUNCTION I/O BOARD
National Instruments PCI-GPIB IEEE 488.2 183617K-01
NATIONAL INSTRUMENTS SCXI-1000 MAINFRAME W/ SCXI-1127
National Instruments PCI-MIO-16XE-50 Card
National Instruments PCI-6280, 18-Bit High-Accuracy DAQ