\documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{shapes.geometric}
\input{repeater}
\begin{document}
 \begin{tikzpicture}[every node/.style={scale=.8}]
  \activeuser{u1}{ 0,0}{DM3MAT 2621370};
  \activerepeater{R1}{1,3}{DB0ABC};
  \draw[dotted] (2,4) -- (2,-1);
  \user{u2}{ 4,0}{I/DL2XYZ\\2621234};	
  \activerepeater{R2}{3,3}{I0ABC};
  \draw[->] (u1) -- node[above,rotate=70]{PC: 2621234} (R1);
  \draw[->] (R2) -- node[above,rotate=-70]{PC: 2621234} (u2);
  \path[->] (R1) edge[dashed,bend left] node[above]{via network} (R2);
 \end{tikzpicture}
\end{document}
