TOA Electronics VM-2120 instruction manual To be

Model No.		VM-2120	VM-2240
Audio	Speaker Output	Rated output (volume control in maximum position), Plug-in screw
Output		connector*7
	Speaker Selector	5-zone selector with attenuator (all zones simultaneously selectable)
	Direct Speaker Line	Direct output from the power amplifier output transformer
	Output	(attenuator bypassed), Plug-in screw connector*7
	Line Output	0 dB*1, 10 kΩ, RCA pin jack
	Recording Output	0 dB*1, 10 kΩ, RCA pin jack
	Preamplifier Output	0 dB*1, 10 kΩ, RCA pin jack
Control Inputs 1 – 3		For controlling Inputs 1 – 3, Push-in terminal block
		No-voltage make contact input, open voltage: 3.3 V DC, short-
		circuit current: under 1 mA
Control Input and Output		25-pin female D-sub connector
		Input: No-voltage make contact input, open voltage: 3.3 V DC,
		short-circuit current: under 1 mA
		Output: Open collector output, withstand voltage: 30 V DC,
		operating current: under 10 mA
		(1) External control input
		• Activation of messages*4
		• Activation of power
		• Activation and stop of Emergency Broadcast
		• Unit's broadcast cutoff (when activated by an external
		emergency equipment)
		(2) Status output
		• Irregularity of communications with the Remote Microphone
		and an expansion amplifier
		• AC power condition
		• DC power condition
		• Irregularity of the sound source of the Voice Announcement
		Board
		• Failure (FAULT) indication on
		• Power switch on
External Attenuator Control Output		Plug-in screw connector*7, relay, no-voltage make contact output,
		transfer type, withstand voltage: 30 V DC, 125V AC, contact
		current: under 7 A (DC), under 7 A (AC)
Surveillance Input and Output*5		25-pin female D-sub connector
		Input: No-voltage make contact input, open voltage: 3.3 V DC,
		short-circuit current: under 1 mA
		Output: Open collector output, withstand voltage: 30 V DC,
		operating current: under 10 mA
Power Supply		24 V DC/0.2 A, for supplying power to an optional Amplifier Control
		Unit RU-2001/-2002, push-in terminal block*6
Chime Tone		Built-in chime: 2-tone chime/2-tone chime (fast repeat)/4-tone
		chime (Up)/Single-tone chime/4-tone chime (Up &
		Down)/Gong/off
		Voice Announcement Board sound source: Pre-recorded chime*4
Cooling Fan		Operates as follows depending on heatsink temperature.
		Under 50°C: Stop
		50 – 85°C: Low to High speed (variable)
		Over 85°C: High speed
			To be continued

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