Index of /communications/hayes
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   DIR /communications
   DIR Smartmodem_1200
       Hayes_44-012_Technical_Reference_For_Hayes_Modem_Users_1993.pdf
       Hayes_44-012_Technical_Reference_For_Hayes_Modem_Users_Jul1991.pdf
       Hayes_Chronograph_Schematic.pdf
       Hayes_Stack_Chronograph_Owners_Manual_Nov81.pdf
       Hayes_Technical_Reference_Hayes_Synchronous_Interface_For_Application_Software_Mar1987.pdf