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USB 2.0 High speed C+SIM+Smart card reader NEC CK1302-02 Smart Card Reader NEC CK1505-02 SmartCard Reader NEC CK1507-01 SmartCard Reader NEC IC Card Reader/Writer CK1302-01A NEC IC Card Reader/Writer CK1302-02 NEC IC Card Reader/Writer CK1505-01A NSR-2000S-A-EG NSR-2000S-FD NST NRC 2000S NST NSR-2000S Serial SmartCard Reader NSR-2000S-A-EL. USB is too convenient and useful to ignore. Yet, when taken off the desktop into tougher environments, features like isolation protection, EMI/ESD shielding, IP67 cabling, high-retention connectors, DIN-rail or panel installation, range extension, are a must.
When technician John Baker of Premier Resource Services connected his laptop to a customer’s industrial machinery he got a nasty surprise. There was a quick puff of smoke and John lost his hard drive, his USB port and the USB adapter that he had connected to the machine.
The problem, the technician soon discovered, was that, while his laptop was plugged into the wall, the machine he was servicing was connected to the shop’s single-phase power supply and its leads had been reversed to keep it from tripping a GFI switch. As the laptop and the connected device now had different ground potentials, the USB cable became the path to a lower ground state. It was an expensive lesson.
Notebook Samsung Book X40, Intel Core I5-10210U, 8GB, 1TB, Tela 15.6, Placa de Video MX110 2GB, Windows 10 Home, Prata - NP550XCJ-XF1BR. Operating System Driver Provider Driver Version; Download Driver: Windows 2000 (32 bit) Perto S.A. Perifericos para Automacao: 1.1.5.6 (4/10/2007) Download Driver. Blutronics Bludrive II Family Smart Card Reader Blutronics Writechip II SC8060U-USB Keyboard with CCID SmartCard Reader TLP3 Smart Card Reader TLP3 Smart Card Reader LTC32 Smart Card Reader LTC31 Smart Card Reader LTC31 USB 2 Smart Card Reader myPad110 PCSC Smart Card Reader EZ100PR EZ100PU EZ100RB EZ200PR EZ200PU EZMini Smart Card Reader VENUS.
A kiosk manufacturer plugged a card reader into the kiosk’s built-in computer. Everything was powered up and all of the connections looked fine, yet the two devices would not communicate. The natural inclination was to assume that either the card reader or the cable was faulty. But that was not the issue. The problem lay in the kiosk’s built-in computer. It was a low cost, single-board device and its USB ports were not providing full power.
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An injection molding machine manufacturer found a way to enhance parts quality and cut material costs by regulating the temperatures of multiple heating elements. The process created a powerful electromagnetic field. The controlling computer could be kept at a safe distance, but the USB hub and cables were inside the field, and the resulting electromagnetic interference was a communications nightmare
DANE-ELECT USB NOT RECOGNIZED BY MY COMPUTER Says not formatted USB NOT RECOGNIZED BY MY COMPUTER I have a DANE-ELEC USB that one day suddenly stopped working I think it may have malfunctioned when I put it into the computer nothing happens no window pops up with the files in it. Free dane elec driver download software at UpdateStar. Dane-Elec USB Card Reader Driver v2.3b. Matched missing drivers not only for your device drivers but. Dane-elec usb devices driver download for windows.
.“You can expect all kinds of problems when you’re working with USB,” says Brian Foster, Advantech B+B SmartWorx Product Manager and an expert in data communications. “It was originally designed as a standard bus for connecting computer peripherals in safe home and office desktop environments. But, its cross-platform, hot-swappable interface turned out to be so useful and convenient that USB now appears in everything from emergency medical equipment to precision agricultural guidance systems – environments that it was never designed to handle.”
A Laundry List of Inherent Weaknesses - USB was intended to connect mild-mannered home and office devices like printers, keyboards, media players, cameras and external disk drives. And, it would not just connect them; it would carry 5 VDC power as well, in many cases eliminating the requirement that peripheral devices include their own power supplies. In fact, rechargeable devices would be able to use USB to restore their internal batteries to full power.
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Devices would be able to draw up to 5 unit loads from a USB port, with a unit load in USB 2.0 being defined as 100mA. “Low-power” devices would draw one unit load or less (under 100 mA). “High-power” devices could draw the full 500 mA. Additionally, devices that required more than 500 mA could be equipped with a Y-shaped cable that would enable them to draw power from two USB ports at the same time.
Devices with internal power, like printers, would register as “low-power” devices, requiring only 100 mA.Devices would initially function at low power, but would be able to request high power if needed. AT any rate, that was the specification.
Ruggedizing USB for Ground Loops - It is very useful to be able to connect a remote device via USB. But the greater the distance between the connected devices, the more likely it becomes that the communicating devices will be getting their power from different building ground references. When they do, the USB cable’s ground wire can create a ground loop path.
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In home/office environments the ground loop problem is rarely an issue. The connected devices will normally be quite close, usually sharing a wall outlet and a common ground. But industrial installations can be far more complex. Imagine a situation in which a process control system is powered from a source in one building location, but the front panel is powered somewhere else. When you connect a PC to the front panel via USB, powering the PC at the same location, you can create a ground loop with the process control system, which may be hundreds of meters away. Magnetic flux from motors or other high-power devices can use this ground loop to induce current noise on the ground. If you are lucky, the only result will be data transmission errors. More extreme events, like surges and voltage overloads, will burn out integrated circuits and connectors. (See Figure 1.)
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Your computers and connected devices should be protected with USB isolators. Ordinary surge suppression tries to limit spikes between the signal and ground line. But if the ground line rises, as it does in ground loop situations, then surge suppression will not stop it. Isolation allows the lines to float while keeping the local side at the proper ground and signal level. An isolator controls electrical flows while simultaneously ensuring that your data stream is not interrupted. You can deploy dedicated inline USB isolators as well as USB devices that perform additional functions while including isolation, like isolated hubs or serial converters. (See Figure 2.)