Output mode
This is when a channel is configured as an output and the channels input terminals are not used.
Mode settings notes
Output Output type
The Sectored output is used to power a wide range of alarm products
such as sounders, bells door holders and relay. A series blocking diode
must be used.
The LED output drive of 1.5mA is available.
The Unmonitored sector output is for use with galvanic isolator, in
this mode no end-of-line resistor or series diode is required.
Unmonitored sector lines will have no associated analogue channels.
The Door release category A option is used for controlling door
release mechanisms that need to meet the requirement of BS7273 Part
4. With Category A the outputs are operated (doors released) from fire,
fault and disablement events.
The Door release category B option is used for controlling door
release mechanisms that need to meet the requirement of BS7273 Part
4. With Category B the outputs are operated (doors released) from fire
events.
Sync. pulse
The outputs sends a synchronisation pulse every 10s, the output is
turned off for a short duration. The duration can be programmed to be
approximately 10, 20 or 30ms for compatibility with a wide range of
annunciation devices that require synchronisation such as strobes,
sounders and voice sounders.
Failsafe
When On it allows the setting of Fail safe periods for all Mains
powered interface outputs, where outputs are used for fire doors control
applications. When set to 'On' the Initial fail safe period defaults to
120s and the Final fail safe period defaults to disabled. See page 14.
Mains failure To preserve battery capacity for essential functions it is possible to
configure individual outputs to deactivate 'Turn Off' during a mains
power failure.
Output normally This is when a sectored output is configured to work in an inverse
manner. An ON setting will cause the output to turn OFF. Note that in
this mode sector wiring is effectively unmonitored, it is only monitored
when the output is de-energised. This feature may be used with
equipment such as magnetic door holders to ensure the fire door release
once a fire has been detected.
Commissioning information S4 Mains powered interface unit
4 4188-968 issue 2_Part 2_09-10_S4 mains interface
www.acornfiresecurity.com
www.acornfiresecurity.com
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