Retail POS terminals at sales counters such as those in banks and grocery stores are essentially a PC in a custom case attached to printers, scanners and displays. (Application Note - September 1, 2003)
Using Serial Device Servers is an economical and easy way to make a connection, because it does not require an actual PC workstation at the remote location in order to implement or monitor and service the devices. (Application Note - September 1, 2003)
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