Chapter 5: OPERATION
2. EMERGENCY BROADCASTS
5-10
Here, an example of sequential operation with an EV-200 mounted in the VX-2000 is explained.
Single-origin EV broadcasts permit EV messages and their corresponding broadcast zones to be changed by
switching sequential operations between Phase 1 and Phase 2 when set time intervals elapse.
[Sequential operation]
Sequential operation consists of Phase 1 and Phase 2.
Sequence Phase 1 operates upon emergency system activation. When the set time interval elapses, the
broadcast is automatically switched to Phase 2.
Only one sequence consisting of Phase 1 and 2 broadcast messages and sequence switching time interval
can be set per system.
Assuming that these phases are set as follows:
Phase 1: The alert message is continuously broadcast for 5 minutes.
Phase 2: The evacuation message is continuously broadcast.
[Pattern setting]
Up to 50 Emergency broadcast patterns can be set for each of Phase 1 and Phase 2 broadcast zones when
1 EV-200 unit is used. The created patterns are assigned to the Remote Microphone's emergency button or
control inputs. Activating the Emergency mode or receiving a fire alarm signal recalls the assigned pattern and
broadcasts the message to the set zones.
Assuming that Emergency broadcast patterns are set as follows:
Step 1. Background music (BGM) is broadcast to
GF and 1F when the system is in general-
purpose broadcast mode.
Step 2. The sensor installed on 2F detects
irregularities, and the fire alarm system
transmits a control signal to the control input.
The emergency mode is activated and BGM
stops. Emergency broadcast pattern 3 is
recalled, allowing the alert message to be
played through to 2F.
GF
1F
2F
3F
General-purpose
broadcast mode
Emergency
sequence
Phase 1
5 minutes
BGM
BGM
GF
1F
2F
3F
Alert
Emergency activation signal
Continued on next page
Emergency Broadcast Pattern Broadcast Zone Setting
1
Phase-1: GF
Phase-2: ALL Zones
2
Phase-1: 1F
Phase-2: ALL Zones
3
Phase-1: 2F
Phase-2: ALL Zones
4
Phase-1: 3F
Phase-2: ALL Zones
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