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4.1 Radio-interlinking
The Ei650W, Ei650C, Ei650iW and Ei650iC models can be interlinked wirelessly using radio.
The Ei650M or Ei600MRF radio module is required for this. You simply insert it into the
back of the smoke alarm. This ensures that if one alarm detects a fire, all interlinked alarms
go off too and the alarm can be heard throughout the house.*
4.2 Wire-linking
We recommend interlinking up to 12 smoke alarms and/or heat detectors so that
all devices will sound if one device detects a fire – (see Table 1 for alarms with
wire-linking). This ensures that the alarm will be heard throughout the building.
Do not connect any other kind of device, as this may damage the alarm or impair its
performance. A maximum of 250 m of dual-core 0.5 mm–0.75 mm stranded signal wire
may be used (maximum resistance between two alarm units: 50 Ohm). The alarms are
connected up by wiring together all terminals marked “1” and all terminals marked “2”
(see Figure 13 a). Note: Draughts from cable openings, cable ducts or installation
boxes/holes can draw smoke out of the smoke chamber, reducing the sensitivity of the
smoke chamber. It is extremely important to seal all openings in the ceiling with silicone
or a comparable sealant.
* Visit http://www.eielectronics.de/funkrauchmelder/funk-system for more information