In Touch With Tomorrow TOSHIBA INTERNATIONAL CORPORATION13131 West Little York RoadHouston, TX 77041PH. 800 231- 1412, 713-466-0277 FAX 713-466-8773Programmable Controllers E-Mail plc@tic.toshiba.comMODEM COMMUNICATIONS WITH THE T1 AND T2E/T2N March 1998USING T-PDS WINDOWS FOR DIAL–UP COMMUNICATIONS WITH TOSHIBAT1 AND T2E/T2N PROGRAMMING PORTToshiba PLC users can expand their remote diagnostics and remote programming capabilitiesby using Hayes compatible modem communications over the Public Switched TelephoneNetwork with standard analog phone lines and standard modems. Please note that “analog” linemeans a normal dial-in dial–out phone line similar to the ones that you have at home (i.e., about48Vdc open circuit voltage with about 110Vac ring voltage). This does not include the digitalphone lines in most offices that use modern digital PBX systems. Plugging a modem directly intoone of these digital office lines may destroy the modem.We used US Robotics 56K Sportster external modems for our tests, but just about any externalHayes compatible modem will work. Here is the list of equipment that you need for modemcommunications with the PLC’s programming ports:Accessories For T2E/T2N Modem Communications (with programming port):PC Side:• a standard “straight-through” 9-25 pin RS-232 serial cable• a ≥ 9600 baud external modem.PLC Side:• a standard “straight-through” 9-25 pin RS-232 serial cable• a ≥9600 baud external modem.See Note 1 on page 5T1/T1S PLCDifferentPh. NumbersStored in T-PDSSoftwareRS232ModemMaster ComputerTelephoneLineModemT2E/T2N PLCRS232T1T1T1T1Modemw/NullModemAdapterTelephoneLine