r protocols when it is in Link mode. On the
sending unit a user must choose the variables to be sent, and the receiving
calculator must be put into a special reception mode.
<p>The protocol for all manual variable transfers is shown below. For information
on packet formats, <a href="packet.html">click here</a>.
<p>A computer can be either the sending unit or the receiving unit.
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<tr>
<th WIDTH="7%" BGCOLOR="#008800"><font color="#FFFFFF">Step</font>