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Introduction
This manual provides a comprehensive guide to the programming of the Ampac Xpander Hub & Cluster
System
The Xpander System comprises of a Radio Hub capable of receiving information from a maximum of 31
Radio Cluster Communicators (RCCs). The RCCs are each capable of receiving information from up to 31
wireless devices. The wireless devices include Smoke and Heat detectors, along with manual call points,
sounders, sounder beacons, input/output units, combined sounder/detectors and combined sounder
strobe/detectors.
The communication between devices to RCC and RCCs to Radio Hub is bidirectional and utilises the 915
MHz frequency. The maximum amount of Radio Hops between RCCs and the Radio Hub is four. This is
shown in the following system overview.
The Radio Hub supports four loops of detectors using the XP95 protocol. The Radio Hub communicates to
a Loopsense, FireFinder or FireFinder Plus Fire Alarm Control panel, via its loop wiring connection.
An LCD display is provided on the Radio Hub along with function buttons, to allow programming and
diagnostics to be carried out for all associated devices and RCCs.
The RCC is a wireless device requiring only a mains power connection. The unit transmits data from up to
31 wireless devices to the Radio Hub, which in turn passes this information to the Fire Alarm Control
Panel.
System Overview
