36Clck NEW button to select a new COMM port and configure its proper communicationparameter. Then, clck OK to finish the settings. From here you can select the properport from Connecton Lst BoxAfter selecting the proper COMM port, you will find icons of Date/Time, Warm Start, andCold Start changed from grey to color, ndcatng that they are enabled.Download / Upload / Delete / Execute will also become colored if you select click fileson local file area or remote files areaModem CommunicationFor the HT580, Untech provdes a modem cradle to enable the modem communcatonfuncton between a PC and the HT580. A user must connect the phone lne to cradleand HT580 stll connect to cradle wth RS232 nterface.There are 2 ways to connect:• Callng from a PC• Callng from a TermnalChapter 3 Communication