Toa SX-2000 Series Manual User Manual

Page 117

10-12

Chapter 10: OPERATION

Emergency
sequence
Phase 1

General-purpose
broadcast
restored.

Emergency
sequence
Phase 2

Continuous

BGM

Building A

Building B

BGM

Evacuation

Building A

Building B

Evacuation

Alert

BGM

Building A

Building B

BGM

Emergency restoration signal

Signal added to A-2F and A-4F

Step 3. Following this, the sensors

installed on A-2F and A-4F detect
irregularities and the fire alarm
system transmits a control signal
to the control input.
Broadcast zones are added, and
the alert message is also
broadcast to A-2F and A-4F, as
well.

Step 4. After the set 5-minute time interval

elapses, the message is
automatically switched from
Phase 1 to Phase 2.
Broadcast zones change to the
"entire zone" and the evacuation
message is broadcast to the entire
area, and BGM stops.
The evacuation announcement
continues until the Remote
Microphone's Reset key is
pressed or a restoration signal is
transmitted from the connected
fire alarm system.

Step 5. The fire alarm system transmits a

restoration control signal to the
control input.
The emergency mode is
terminated and the broadcast
reverts to general-purpose
broadcast mode, restoring BGM
output.