Worth Data 5000 TriCoder s Especificaciones descargar pdf (Pagina 11)

Our TriCoder Portable reader now also features a built-in USB port. Keyboard

input as well as lighting-fast USB uploading (40 times faster than through the

serial port) is supported.

PC Keyboard Wedge Readers

If the bar code reader is attached through the keyboard interface, the bar code

reader sends data in key codes, exactly as though the data had been keyed on the

keyboard. Keyboard interface readers are nicknamed "wedge readers", because

they physically wedge between the keyboard and the computer and attach as a

2nd keyboard. The great advantage of "wedge readers" is that bar code reading

can be added with no software changes necessary; the software thinks the data is

produced by a fast typist. (Of course the keyboard remains usable too!). With a

wedge reader, any

program that accepts keyed data will accept bar code

data with no change. The following figure shows a keyboard - wedge reader

attachment.

A keyboard wedge reader which emulates all of the keys including function

keys, Ctrl, Alt, Page Up, etc. is preferable.

You cannot place a keyboard wedge reader more than 10 feet from the

computer. You can get an extension cable for the scanner, allowing you to range

up to 35-100 feet from the computer. For these applications a cordless radio

frequency scanner would be better; the scanner has a transmitter and the decoder

has a receiver so that the scanner can transmit digitized data to the decoder over

RF instead of a cord. RF readers transmit up to 150 feet.

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Worth Data 5000 TriCoder s Especificaciones Pagina 11