ETC ERP-CI Contact Input Control Option Kit For Echo Relay Panel

The ETC ERP-CI is a contact input option card designed for the Unison Echo Relay Panel in architectural lighting control systems. It provides 24 dry contact inputs that allow external devices and control points to interface with the relay panel for more flexible system operation. For integrators and specifiers building dependable wall-station, closure-based, or subsystem-triggered control, this accessory expands how relay panel actions can be initiated within an installed lighting environment.

In practical applications, the ERP-CI can be used to trigger presets and sequences that play at the priority configured for architectural sources, making it useful in spaces where repeatable lighting actions need to be recalled from simple contact closures. It can also be used for direct control of one or more outputs when the design calls for straightforward activation from external switches, sensors, or control interfaces. This makes it a strong fit for commercial, institutional, and public venues that rely on structured architectural lighting workflows.

Because it is purpose-built for the Unison Echo Relay Panel, the ERP-CI is best suited for projects that need added contact closure integration without changing the core relay panel platform. It supports installers and facility teams looking to extend system interaction using familiar dry contact logic in a clean, panel-based solution.