  The modelling of electrical connections of single, or several, multiterminal
quantum Hall effect (QHE) devices is relevant for electrical metrology: it is
known, in fact, that certain particular connections allow i) the realization of
multiples or fractions of the quantised resistance, or ii) the rejection of
stray impedances, so that the configuration maintains the status of quantum
standard. Ricketts-Kemeny and Delahaye equivalent circuits are known to be
accurate models of the QHE: however, the numerical or analytical solution of
electrical networks including these equivalent circuits can be difficult. In
this paper, we introduce a method of analysis based on the representation of a
QHE device by means of the \emph{indefinite admittance matrix}: external
connections are then represented with another matrix, easily written by
inspection. Some examples, including the solution of double- and triple-series
connections, are shown.
