Topology & Cabling
All system wiring should be installed to comply with BS 5839: and BS 7671 (wiring regula ons) and any other standards
relevant to the area or type of installa on. A cable complying with BS 5839: Pt 1: Category 1 (cables required to operate
for prolonged periods during
fi
re condi ons) is required. This must be a 2-core 1.5mm2 screened
fi
re resistant cable (ie.
FP200, Firetu
ff
, Firecell, Lifeline or equivalent).
The maximum total cable length from the control panel to a repeater is 500 metres.
Up to 8 repeaters can be used but they must all be within the maximum 500 metres cable length.
The cable
screen must be connected to earth/ground at the control panel
only.
The cable
screen continuity must be maintained
at every point of the circuit, using the terminals provided or a suitable
connec on block.
Do not
use a 4-core cable as a 24v supply and communica ons, due to the possibility of data corrup on. It is essen al
that two 2-core screened cables are used, one for the 24V DC supply and the other for communica ons.
Power Supply & Connections
24V DC Power is provided from the control panel via Aux+ and Aux-.
2-core 1.5mm2 screened
fi
re resistant cable
When powering a repeater from the panel the extra current will reduce the ba ery backup run me and has to be
allowed for in the ba ery calcula ons.
Current Drawn by Single Repeater @ 24.0V DC
Separate Power Supply Requirements
The repeater can be powered by a separate 24v EN-54 power supply if required.
The repeater working voltage range is between 21V DC to 32V DC with a maximum current of 50.0mA.
Peripheral Bus Connections
Communica ons between the panel and repeater is via a mul -drop RS-485 Peripheral Bus.
2-core 1.5mm2 screened
fi
re resistant cable ((i.e. FP200, FP200, Firetu
ff
, Firecell, Lifeline or equivalent)
cable should be used for communica ons to the repeater and connected to the back board.
The peripheral bus must be run from the panel to the
fi
rst repeater then the second repeater and so on; the peripheral
bus must not be spurred from one point.
26-1
708
-01
