prolific usb to serial comm port windows 7

for small data sizes (like you have) the USB-SER convertor will introduce considerable delays. use the device manager to configure the LATENCY timer and PACKET size. Windows can shut off the USB supply when it 'saves energy' this shuts off the USB device if its port poweredĤ) PROTECT the HUB connections- If you have a USB2.0 device and Joe User plugs in a 1.0 device in a open slot managed by the same hub- Bingo every port on the hub may back convert to USB1.0ĥ) especially for USB-SER. I like the belkin powered port adaptors for clean reliable power to the device USE the wall wart adaptor and a surge arrestor.Ģ) High noise environments require the use of ferrites on the USB cable- and don't buy the cheapest cable either! the cheap ones are poorly shieldedģ) DISABLE power management from the device manager for the USB hubs. Lots of good ideas poping up but, I'm going to add five more that I've learned from PAINFUL experienceġ) Computer USB ports are often the cheapest that can be mounted on the chassis and share the PC system power supply to supply USB Power.

Prolific usb to serial comm port windows 7