2.2 The IBM 7171 ASCII Device Attachment Control Unit - Index of

Note: Do not make the ZAP password the same as the MaintenanceFacility password. Each password must be unique.OptionIf transmission is taking place through the COM2: port, thenspecify '2'.Note: Before any I/O can take place, the communications port must be initializedthrough DOS. The settings must coincide with the port configuration set in theIBM 7171 for port O. The initial setting is for auto baud detect, Even Parity, SevenData Bits, One Stop Bit. To transmit at 1200 bits per second the following DOScommand must be issued:MODE COM1:1200,E,7,1orMODE COM1: 12Both perform the same task, the second option is a standard DOS abbreviation.For a dedicated line, an operator only has to invoke the 717110 utility via themenu selection process or by issuing the 717110 command. If a switched line isused, first an operator must establish the connection over the switched network.The method of dialing into the system is modem dependent. Once the connectionis established, then the operator proceeds as for a dedicated line.See the section on DOS Bat files.An example of a bat file for automatic dial up is:ECHO .................. >COM1PAUSE717110 {Get I Put} {Ports I Term} filename.1MG password [2]Executing the DOS ECHO command, outputs the dialing sequence to a modemwhich has auto dialing capability. The" ........ " indicates that the user must put in amodem specific character string which will make the auto dial-in connection.Execution of the PAUSE command will provide the prompt, "Strike a key whenready." Press any Key after the connection is made. The Pause command is notrequired for direct connections. It is simply a tool for delaying execution until theuser is sure the modem has established a connection.Executing the last command invokes the IBM 7171 Support Utility which inputs oroutputs .IMG files of the IBM 7171. If 2 is not specified in the command, theinput or output will default to PC communications port COM1:.C.16.6 I/O Utility CommunicationsThe 717110 utility requires:• Initialization of the COM port to the settings specified for PORT O.• A connection to PORT 0, which may be direct, by modem, or an equivalent seeIBM 7171 ASCII Device Attachment Control Unit Description and PlanningGuide for help with cable configuration. The 717110 utility requires CTS andDSR signals for transmission.C-58 IBM 7171 Reference Manual and Programming Guide