How To Use The Optical Coupler - Canon X-07 User Manual

How to use the Optical Coupler X· 721
2.5
2.5.1 The Optical Coupler X-721
One X-721 can be connected to the X-07 and another X-721 to another X-07
or to the RS-232C Level Convertor X-722 for cableless communication. There
is no need for bothersome cable connections for transmitting/receiving pro­
grams and data.
The signals sent by the X-721 conforms to the specifications of the asyn­
chronous serial signals. Accordingly, softwarewise, the signals are processed as
access of the serial port. Therefore, this section covers not only the X-721, but
also the asynchronous serial signal specifications (RS-232C) and serial
communication.
2.5.2 How to connect the X-721
Connect the X-721 to the X-07, as shown below.
90