A packet is received from a network. The electro-optical multi-core modulator driver may include an input impedance matching stage and a pre-conditioning circuit configured to generate a number M, an integer divisor of N, of delayed replicas of an electrical modulating signal. Then, the registration request for multiple IP handoff is processed according to information included in the received registration request message. The therapeutic agent eluting element may be a part of a system or kit that includes a therapy delivery element and a tunneling tool, such as a dilator, sheath, catheter passer, or the like. The invention allows to establish relationships between an infrastructure design and the various components of the solution to offer a flexible solution that automatically check the impact of changes and new requirements. This water switching function of the shower is more efficient and flexible.