  We consider networks of infinite-dimensional port-Hamiltonian systems
$\mathfrak{S}_i$ on one-dimensional spatial domains. These subsystems of
port-Hamiltonian type are interconnected via boundary control and observation
and are allowed to be of distinct port-Hamiltonian orders $N_i \in \mathbb{N}$.
Wellposedness and stability results for port-Hamiltonian systems of fixed order
$N \in \mathbb{N}$ are thereby generalised to networks of such. The abstract
theory is applied to some particular model examples.
