The Hochiki HCP-E(SCI) Manual Call Point with an integral short-circuit isolator is fully compatible with Hochiki’s ESP analogue addressable protocol. The unit has a bi-coloured LED, that can be selected as pulsing or non-pulsing for communications polling. The LED is continuously lit when the HCP-E(SCI) is operated, and in these two states the LED will display red. When a short-circuit is present, the LED shows amber, and when the unit is activated it will switch to red.