POWERSCAN D8590 User’s Manual 4-14 CommunicationsContentsThis section includes connection parameters and options for communicating with thePOWERSCAN D8590 in various interfaces.Communications by ESP.............................................................................................................. 4-2Communications Overview........................................................................................................... 4-3USB Interface ............................................................................................................................... 4-4RS-232 Interface .......................................................................................................................... 4-5Preamble ...................................................................................................................................... 4-7Postamble..................................................................................................................................... 4-9Preamble and Postamble by ESP .............................................................................................. 4-11Keyboard Mapping .................................................................................................................... 4-12Text Commands ......................................................................................................................... 4-13Other Communications Settings in ESP..................................................................................... 4-14