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17-1  Data Communication Overview 
This section provides an overview of the types of connections that are possible, and the data 
that can be transferred over each connection. It also tells you how to use the 
Communication application to transfer data. 
17-1-1
Data Communication Overview
Important!
• Never press the P button on the back of the ClassPad while a data communication    
operation is in progress. Doing so can damage memory, resulting in loss of all memory 
contents and malfunction of your ClassPad. If this happens, you will need to request repair 
from your CASIO Maintenance Service Provider. Note that repair of your ClassPad will not 
recover any lost memory contents. 
Connectable Devices and Transferable Data 
The following three types of connections are possible. 
• Two ClassPad units 
• A ClassPad and a computer 
• A ClassPad and a CASIO EA-200 Data Analyzer 
The following provides details about each of these connections, and describes the type of 
data that can be transferred over each. 
k
 Connecting Two ClassPad Units 
You can transfer variable data, eActivity data, and display image data between two ClassPad 
units.
• For information about variables, see “1-7 Variables and Folders”. 
• For information about eActivity data, see “Chapter 10 – Using the eActivity Application”. 
• For information about display image data, see “Sending a Screenshot of the Current    
  Display Contents” on page 17-4-5. 
u
 Connection
Use the special SB-62 3-pin data communication cable to connect two ClassPad units. For 
details, see “Connecting to Another ClassPad Unit” on page 17-2-1. 
u
 How to Transfer Data
You can use either of the two following methods to transfer data between two ClassPad 
units.
• Use the Communication application. See “17-4 Transferring Data to Another ClassPad 
Unit” for details.
• Use the “SendVar38k” and “GetVar38k” program commands. See “Chapter 12 – Using 
the Program Application” for details.