A. Preparations for Communication
Infrared Communication
The watch is switched to the data transfer standby display of the infrared communication mode.
(1)The watch enters the infrared communication mode (initial display) when the lower left button (D) is pressed for at least 2 seconds and then released in any mode.
(2)Select "toPC" by pressing the upper left button (C) once. (The "*" mark moves to the left of "toPC".)
(3)The watch is switched to the data transfer standby display by pressing the upper right button (B).
Infrared Communication Mode
(Transfer Standby Display)
*Refer to part "B. Infrared Communication Mode Operating Procedure" of the previous section "1. Infrared Communication" for a detailed explanation of the procedure for using the infrared communication mode.
USB Communication
(1)Connect the personal computer and communication unit with the USB cable (sold separately).
VAttachment of Ferrite Core
When performing data communication using the USB communication interface, always make sure to attach a ferrite core to the
Slide the ferrite core to 
this location
Loop the USB cable once at the base of the B type connector (side that is connected to the communication unit), insert the overlapping portion of the cable into the groove inside the ferrite core and securely close the ferrite core.
CAUTION
Always make sure to attach the ferrite core enclosed with the communication unit to the USB cable prior to use.
Failure to properly attach the ferrite core may cause electromagnetic interference to affect other equipment.
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