8.1.10 Zone Status (Fault Diagnostics)
To aid in diagnosing the type of fault on an evacuation zone, four buttons have been included on the
Master Control Panel of the ECP. These buttons represent the four types of evacuation zone faults
that can occur.
These faults are:
1. Amplifier/speaker line faults.
2. EAID faults.
3. Visual line faults.
4. Alarm system (FACP) faults.
When one of these buttons is pressed, only the zones with a fault present as represented by the
push button have their OWS fault origin indicators illuminated. This facility is non-latching and
therefore the OWS fault origin indicators will return to their former state when the button is released.
Figure 4: Zone Status Indicators and Switches
8.2 OWS Zone Control Panel
8.2.1 OWS Zone Control Switches And Indicators
Figure 5: OWS Keypad
The control switches allow any of the four audio channels (BGM, PA Alert or Evac) to be switched to
any of the zones. The Control Switches are inhibited when the OWS is in the AUTOMATIC state.
Pressing any of the control switches for an evacuation zone shall automatically cancel the previous
selection for that zone, i.e. only one audio channel can be assigned to a zone at any one time.
For each evacuation zone there is a set of control switches and associated indicators:
CANCEL - Control only
PA - Control switch and indicator
ALERT - Control switch and indicator
EVAC - Control switch and indicator
8.2.2 OWS Zone Fault
OWS Zone Fault indicator will flash when a fault is detected by the MAIN EQUIPMENT on any of the
wiring or components associated with that zone, and go steady when the fault is acknowledged.
8.2.3 Alarm Origin
Alarm Origin indicator will flash when an input, i.e. FACP or EAID associated with that zone, has
been activated and go steady when the alarm is acknowledged.
Fault and Alarm indicators are NOT inhibited by any key-switch operation.
8.2.4 Zone Labelling
Refer to Appendix A.
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