TOA Electronics VM-2120 instruction manual Priority Function during BGM Broadcast

11.2.2. Priority function when 2 broadcasts with the equal priority level are simultaneously made

When two or more broadcasts with the equal priority level are simultaneously made, priority mode is as shown in the following table depending on the type of broadcast sound source and setting switch status.

Broadcast		Competing priority level (Priority level of simultaneously made broadcasts)
sound source		Priority 1		Priority 2			Priority 3	Priority 4
Inputs 1 – 3		Last-come-first-served		Last-come-first-		Priority 2 mixing
		or first-come-first-served		served or first-		(selectable)	Mixing	––
		priority *1 *4		come-first-served
Telephone paging		(selectable)		priority *1 *4
				(selectable)			––	––
Remote				Last-come-first-		Unit No. priority *4
Microphones 1 – 4				served or first-		[Numerical order]
				come-first-served		(selectable)	––	––
			Unit No. priority *4	priority *1 *3 *4
			[Numerical order]	(selectable)
	1 – 2		(selectable)				––
Message				––			Last-come-	––
	3 – 5						first-served
							priority
BGM 1 and 2			––		––		––	Mixing

*1 Has nothing to do with the setting of SW2-No. 8 switch (priority mode for the equal priority unit).

*2 Enabled when "Mixed" is selected (factory-preset to "Not mixed") using the unit's internal SW3-No. 2 switch "Priority 2 mixing."

*3 "Last-come-first-served" priority is selected if the unit's internal SW3-No. 2 switch "Priority 2 mixing" is set for "Mixed."

*4 Different settings cannot be selected between "priority 1" and "priority 2."

11.3. Priority Function during BGM Broadcast

When other broadcast is made during the BGM broadcast (Priority level 4), the BGM broadcast is as shown in the table below depending on the priority level of such other broadcast. (The BGM broadcast is restored to the former state when the other broadcast is completed.)

Priority level of broadcast	BGM broadcast operation
overlapping with BGM broadcast
Priority 1	Cut off.
Priority 2	Cut off*1 or volume is decreased*2 *3.
Priority 3	Volume is decreased*3.
Priority 4 (BGM)	Mixed.

*1 Cut off when broadcast is made by Inputs 1 – 3 set for "Line level" inputs.

*2 Decreased when broadcast is made by Remote Microphone, telephone paging, or Inputs 1 – 3 set for "Microphone level" inputs.

*3 The attenuation level can be selected from the following using the unit's internal SW4-No.1 and 2 switches.

(1)No attenuation (Mixed)

(2)–28 dB, (audible)

(3)– ∞ dB (inaudible) (factory-preset level)

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