1585.4.3 Interfacing with the Host PC[ 1 ] CU-8001/8002/8021This section describes how to start communication with the host PC in System Mode. The sameprocedure may apply when you use a user program.(1) Turn the host PC on.(2) CU-8001: Turn the power switch on. The POWER LED will come on.CU-8002: It is supplied with power via the RS-232C interface. It has no POWER LED.CU-8021: If it is connected to the USB host, the POWER LED will come on. If it is connected to theUSB hub, turning on the hub will turn on the POWER LED. If the AC adapter is pluggedin, the POWER LED is already turned on.(3) Make sure that the BHT is turned off, then put it on the CU-8001/8002/8021.(4) Turn the BHT on and run System Mode. Set the communications environments (communicationsprotocol, interface port, communications parameters, and protocol options). Refer to Chapter 2,Section 2.5.3, [4.5].Regarding the communications protocol: When using Ir-Transfer Utility C or Ir-Transfer Utility E onthe host PC, select the BHT-Ir protocol; when using Transfer Utility, select the BHT-protocol.Regarding the interface port: Select the IrDA interface port.(5) On the host PC, initiate a communications program (e.g., Ir-Transfer Utility C/Ir-Transfer UtilityE/Transfer Utility, or equivalent).(6) To transfer data stored in the BHT to the host PC, select "UPLOAD" on the SYSTEM MENU. Totransfer data from the host PC to the BHT, select "DOWNLOAD." Refer to Chapter 2, Section 2.5.3,[ 2 ] and [ 3 ].The BHT and the host PC will start communications with each other via the CU-8000. On theCU-8001/8021, the DATA LED will come on upon start of communications, and after completion ofcommunications, the LED will go off.(7) For the CU-8001, turn the power switch off.RS-232C interface for CU-8001/8002(USB interface for CU-8021)AC adapter (for CU-8001/8021)Power switch(Provided on CU-8001)