Auto / Manual / Isolate Key Switch Operation; Figure 5 Key Switch Operation - Simplex 4100 Operator's Manual

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The function of each switch is explained in the following paragraphs.
2.2

AUTO / MANUAL / ISOLATE KEY SWITCH OPERATION

The keyswitch as shown in
MANUAL AND ISOLATE. The following describes the operation of each mode:
AUTO MODE:
MANUAL MODE:
ISOLATE MODE:
Document No.: 4100-M010A
Figure 5
provides three panel operating modes namely AUTO,
This is the normal operating mode of the panel. In this mode initiation of
the Alert/Evacuation tone sequence is done automatically upon receipt
of an alarm input from the Fire Indicating Panel or Manual Call Points
located at remote WIPs. The key can only be removed when the
keyswitch is in the AUTO position.
In this mode, panel operation is controlled manually using the front
panel audio control switches. Alarm signals received from the Fire
Indicating panel have no control over panel operation. Turning the
keyswitch from AUTO to MANUAL mode while the Alert/Evacuation
tones are being broadcast, will turn off all tones on all zones.
This mode disables broadcasting of the Alert, Evacuation or PA
messages over the speaker circuits. The front panel audio control
switches can be operated but the selected function will not be
activated. This mode can be used to demonstrate the operation of the
panel without activating the relevant outputs.
Figure 5 Key Switch Operation
May 1999
SIMPLEX 4100 EWIS
OPERATOR MANUAL
Issue 3.1