The Hochiki HCP-EM Marine Approved Break Glass Manual Call Point is fully compatible with Hochiki’s ESP analogue addressable protocol. The red LED mounted on the front cover can be selected as pulsing or non-pulsing for communications polling. The LED is continuously lit when the HCP-EM is operated. When pressing the EN54 compliant non-frangible (plastic) element, once operated, a high level ESP interrupt is produced. This allows a fast response of the control panel.