Apollo XPERT 8 Intelligent Mounting Base, White SA5000-200APO

Overview

A detector base is the fixed part of a fire detector. It holds the wiring on the ceiling, and the head twists in and out of it.

This Apollo base takes three addressable detector ranges. That means one base can serve a mixed job or a later upgrade within those ranges.

How it works

• Address card: an addressable system gives every device its own number. You remove pips from the card to set that number for the device fitted here.
• Isolated wiper: a wiper is a sprung contact. Here it keeps the loop connected while a head is out, so taking one down need not break the circuit.
• Isolated negative: the –L1 in and –L1 out terminals are separate, and the wiring differs for detectors with and without an isolator.

Where to use it

It suits new loops, and retrofits where existing heads are being changed. For a smoke detector on a Soteria job, allow for 48mm overall height with the Soteria Optical Smoke Detector.

Check the detector's own ratings and the site conditions to decide where it can go.

What the figures mean in practice

• 254 addresses: this higher capacity depends on both Soteria detectors and CoreProtocol enabled panels. Without both, plan on your panel's normal limit.
• 20mm height: a low base, so most of the depth below the ceiling comes from the head.

Installing it

With E-Z Fit, the screws can go in first. The wiring can be done before the base goes on, which helps on a tight ceiling.

• Soteria polarity: L1 and L2 must go the correct way round with a Soteria detector, so keep polarity consistent across the whole loop.
• Remote LED: detectors without isolator with a common Remote LED have their own wiring arrangement, so follow the maker's instructions.
• Lining up: use the base mark so that the LED faces the way people will approach.

Planning your system

Allow one base per detector. The job also needs an addressable panel running a matching protocol, plus a loop calculation covering every device.