iTach IP2CC

Three integrated relays with transient voltage suppression on a pluggable screw terminal, rated 24V AC/DC at 0.5 A, normally open. These are isolated low-voltage dry contacts, not load-switching relays: they close a circuit for equipment that expects a contact, and they cannot switch a mains load. The IP2CC-P is the same unit with 802.3af PoE. Home Assistant reaches the relays through the gc100 integration, whose `switch` platform maps each relay by module and port as `'x:y': name`. Home Assistant documents gc100 against the GC-100 adapters, but the iTach implements the same Global Caché TCP API on port 4998, and the published addressing differs only in the module number: an IP2CC answers `setstate` on module 1, ports 1 to 3, where a GC-100-12 uses module 3. The contacts are maintained, not momentary. `setstate` holds a relay in its new state until it is set back, and the API's optional period parameter is what produces a timed pulse, so gate and garage triggers that expect a momentary contact need either that period or an automation that releases the relay. The integration is local-polling and cannot run concurrently with a second gc100 connection to the same unit.