Remote connection to the DX-80 system is possible via modem. The optional modem may be purchased allowing remote administration of the DX-80 system database and maintenance operations. The default directory number of the modem is 199. Some working knowledge of modem operation and connection is useful. 188.8.131.52 F10-RS232C This function key is used to setup the PC COM port. To successfully setup the PC COM port you must know how the PC hardware is configured. In this utility you must select the COM Port number (PCDBA supports COM 1 or 2 only) and the baud rate that will be used for the connection. At default PCDBA is setup to use COM Port 1 at 9600 bps. (9600 bps matches the default baud rate set for the DX80 CPM – PC-DBA Port.) While using a modem connection, it is best to set the COM port baud rate at 2400 bps since this is the speed of the DX-80 optional modem; setting this speed can expedite the modem negotiation process since compression link choices will not be attempted.