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Zone Connections - 16(EOL)
This option will give sixteen zones available from the control panel PCB.
The control panel zones may also be programmed as 16 EOL (End Of Line resistor)
zones. This configuration gives the highest possible zone wiring security and a
maximum of ten detectors may be wired on to each zone when this option is selected.
Resistors required for EOL operation are supplied with the control panel.
When using EOL zones each detector has a 6K8 resistor in parallel with the alarm
contacts and there is a 4K7 resistor in series with the two zone wires. This gives both
alarm and tamper protection from a single pair of wires. To make full use of this
security feature the 4K7 resistor must be fitted to the furthest most point in the loop.
To use the 2 wire EOL option the control panel should be programmed for
16 (2 WIRE EOL) in the programming section 'PROGRAM ZONE WIRING' (option
No.50)
When this wiring option is programmed zones AZ1 to AZ8 are zones 1 to 8 inclusive.
Because the 2 wire EOL option has been selected the TZ terminals are also
programmable as zones. The zone numbering for the TZ zones will be as follows:-
Zone 9 on terminals TZ1
Zone 10 on terminals TZ2
Zone 11 on terminals TZ3
Zone 12 on terminals TZ4
Zone 13 on terminals TZ5
Zone 14 on terminals TZ6
Zone 15 on terminals TZ7
Zone 16 on terminals TZ8
Typical wiring of various detectors is given in Figs.24 to 28.
PR5892 Rev11 800 Series Eng Ref 15.qxd 16/11/2006 11:20 Page 39
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