Zircon EN54 Installation & Configuration Manual page 25

EN54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
Capacitor: Capacitor:
Use 0.47µF. Use 0.47µF.
MCP
470R 470R
(nominal) (nominal)
Main PCB Zone Main PCB Zone
Input Terminations Input Terminations
- -
+ +
Method 2:
Supports new and existing installations using Active End-
of-Line (AEOL) - (ZIRCON/EN/CAPKIT). For the AEOL
to function correctly an additional 10µF stabilising
capacitor must be fitted across the zone terminals (not
supplied).
Method 3
Supports existing installations where there is a 4K7 resistor
EOL fitted already and it is preferable to install the panel
without modifying the existing wiring. Call points must be
wired nearer to the panel than detectors.
MCP
470R 470R
(nominal) (nominal)
Schottky diode bases can be used. Schottky diode bases can be used.
Refer to Section 6.4.1 for details on standby battery sizes Refer to Section 6.4.1 for details on standby battery sizes
and maximum number of zones. and maximum number of zones.
Note: This method is not recommended for new
installations.
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4k7
997-532-000-1, Issue 1
March 2006