%%
%% A DANTE-Edition example
%%
%% Example 24-03-40 on page 452.
%%
%% Copyright (C) 2011 Herbert Voss
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%%
%% See
http://www.latex-project.org/lppl.txt for details.
%%
%%
%% ====
% Show page(s) 1
%%
\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{201.70511pt}
\usepackage{pst-circ}
\begin{document}
\begin{pspicture}(5,3)
\pnode(0,2.5){A}
\pnode(0,0.5){B}
\pnode(4,2.5){C}
\pnode(4,0.5){D}
\optoCoupler(A)(B)(C)(D){$OC$}
\end{pspicture}
\end{document}
