\documentclass{standalone}

\usepackage{tikz}
\usetikzlibrary{backgrounds, positioning, shapes.symbols}
\usepackage{helvet}
\renewcommand*{\rmdefault}{\sfdefault}

\begin{document}
\begin{tikzpicture}
  [
    font=\footnotesize,
    faraday/.style={minimum size=3cm, draw, dashed},
    duplexer/.style={draw,fill=white},
  ]

  \node[faraday, label={[anchor=south west]above left:Faraday cage}] (faraday) {};

  \node[above left=0cm and 2.8cm of faraday, label=above:hutch] (hutch)
    {\includegraphics[width=1.2cm]{server}};
  \node[right=0.3cm of hutch, label=above:B210] (b210h)
    {\includegraphics[width=1.2cm]{b210}} edge (hutch);
  \node[below left=0.35cm of faraday.north east] (anto)
    {\includegraphics[width=0.3cm]{antenna}};
  \draw (b210h) -| node [pos=0.25, duplexer] {B7} (anto);

  \node[below left=0cm and 2.8cm of faraday, label=above:starsky] (starsky)
    {\includegraphics[width=1.2cm]{server}};
  \node[right=0.3cm of starsky, label=above:B210] (b210s)
    {\includegraphics[width=1.2cm]{b210}} edge (starsky);
  \draw (hutch) -- (b210h);
  \node[above left=0.35cm of faraday.south east] (antn)
    {\includegraphics[width=0.3cm]{antenna}};
  \draw (b210s) -| node [pos=0.35, duplexer] {B40} (antn);
  \node[below right=-0.2cm and 0.8cm of b210s] (antn2)
    {\includegraphics[width=0.3cm]{antenna}};
  \draw (b210s) -| (antn2);

  \node[left=5cm of faraday, label=above:nano] (nano)
    {\includegraphics[width=1.2cm]{server}};
  \draw (hutch) -- (nano);
  \draw (starsky) -- (nano);
  \node[above right=0.0cm and 0.35cm of faraday.west] (phone1)
    {\includegraphics[height=0.5cm]{phone}};
  \node[below right=0.0cm and 0.35cm of faraday.west] (phone2)
    {\includegraphics[height=0.5cm]{phone}};
  \draw (nano) -- node[above] {USB/adb} +(5cm,0) |- (phone1);
  \draw (nano) -- +(5cm,0) |- (phone2);

  \node[right=1.5cm of faraday, label=above:B210] (b210c)
    {\includegraphics[width=1.2cm]{b210}};
  \node[left=.5cm of faraday.east] (antc)
    {\includegraphics[width=0.3cm]{antenna}};
  \draw (b210c) -- node [pos=0.35, duplexer] {B7UE} (antc);
  \node[right=0.7cm of b210c, label=above:carabe] (carabe)
    {\includegraphics[width=1.2cm]{server}}
    edge (b210c);

\end{tikzpicture}
\end{document}