TOA Electronics VM-2120 用户手册

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页码 72
21
8.4. Emergency Broadcast Sequence 
General-purpose broadcast
Depression of the Remote 
Microphone's Emergency 
broadcast switch
Activation of Alert input*
1
 
by external equipment.
Activation of Evacuation input*
1
 
by external equipment
Alternate repetition of Alert tone signal 
and Alert announcement
Alternate repetition of Evacuation tone 
signal and Evacuation announcement
End of set repetition
Activation of Emergency Stop input*
by external equipment
End of Emergency broadcast
(The unit returns to the general-purpose broadcast 
 mode it was in immediately before the Emergency 
 broadcast was started.*
2
Live microphone 
announcement by 
the Remote 
Microphone's Talk key
Live microphone 
announcement by 
the Remote 
Microphone's Talk key
*
1
Control I/O connector terminal located on the VM amplifier's rear panel 
Emergency broadcast can also be stopped by pressing the front panel-mounted Reset key. Note, however,
that the zones the unit was broadcasting to just before the emergency broadcast activation may change. 
*
2
General-purpose broadcast is not restored depending on its type. 
[Emergency mode] 
• The emergency mode refers to the state where the VM amplifier is making emergency broadcast or where
the "VM amplifier's broadcast cutoff control" signal is being transmitted from external emergency broadcast
equipment to the VM amplifier (refer to p. 45 "CONTROL I/O CONNECTOR FUNCTIONS"). 
• When the VM amplifier is placed in the emergency mode that takes precedence over general-purpose
broadcast mode, the Emergency indicators of both the amplifier and the Remote microphone will light. 
[Restoration to general-purpose broadcast] 
For the general-purpose broadcasts cut off when its mode enters the emergency mode, some are restored
after emergency mode completion, and some are not. 
Broadcast to be restored 
Broadcast not restored 
Broadcast that is not activated by manual
operation of or control from external equipment 
• Broadcast from Inputs 1 – 3 not activated by
control input (CTRL 1 – 3). 
• Broadcast from BGM Inputs 1 and 2. 
Broadcast that is activated by manual operation of or
control from external equipment 
• Broadcast from Inputs 1 – 3 activated by control input
(CTRL 1 – 3). 
• Broadcast from Remote Microphone 
• Telephone paging 
• Message broadcast 
• Westminster chime