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within 1 second. Furthermore the system must be in an inactive state, i.e. fans are not running, no
alarms are present etc.
In this position the control switches and front panel indicators only function locally, with no zone
outputs, i.e. speakers and visual alarm devices being activated. The indicators selected in this position
will flash. This position is used for training purposes.
If an ECP is in the ISOLATE position, and another ECP is switched to manual, the ECP in the ISOLATE
position will illuminate its REMOTE ECP IN CONTROL indicator and the control switch indicators will
reflect the status of the EWS, not local control switch selections.
If an ECP is in the ISOLATE position, and the EWS receives an FACP input then the EWS will return to
the AUTO state and commence the evacuation sequence. The control switch indicators will reflect the
state of the EWS, not the local control switch selections. The ALARM ORIGIN INDICATORS will reflect
which zone caused the EWS to enter the evacuation sequence.
8.1.3 All Call Facility
Four control switches, i.e. "ALL OFF", "ALL PA", "ALL ALERT" and "ALL EVAC" provide the ALL CALL
facility. The selected audio channel is delivered to ALL the evacuation zones. There are three ALL CALL
indicators which reflect the all call selection. These are:
➢ ALL CALL PA
➢ ALL CALL ALERT
➢ ALL CALL EVAC
The ALL CALL inputs have priority over the EWS Control switches. Turning the ALL CALL facility OFF (All
Call 'CANCEL') will return the EWS to its condition before the use of the All Call facility.
8.1.4 Buzzer
The ECP is fitted with an internal buzzer which is activated by the following conditions:
➢ amplifier / speaker line fault
➢ visual alarm line fault
➢ alarm system fault (FACP, EAID)
➢ communications fault (to other ECP's)
➢ system on batteries - local if locally powered, or remote if remotely powered
➢ battery fault - local if locally powered, or remote if remotely powered
➢ charger fail - local if locally powered, or remote if remotely powered
➢ signal generator fault
➢ module fault
➢ system fault
➢ WIP line fault
➢ visual line fault
➢ EAID line fault
➢ microphone pre-amp fault
8.1.5 Buzzer Mute / Alarm Acknowledge
When the BUZZER MUTE button is pressed, all outstanding alarm and fault conditions are
acknowledged. All flashing indicators go steady, and the buzzer is muted. For system wide faults,
pressing the BUZZER MUTE at any ECP will acknowledge the fault at all ECP's.
System wide faults are:
MAN1813-9
9
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