TOA Electronics VM-2120 instruction manual Table of Contents

TABLE OF CONTENTS
1.	SAFETY PRECAUTIONS	4
	EQUIPMENT OUTLINES
2.	GENERAL DESCRIPTION	6
3.	FEATURES	6
4.	HANDLING PRECAUTIONS	7
5.	INSTALLATION PRECAUTIONS	7
6.	NOMENCLATURE AND FUNCTIONS
	6.1. System Management Amplifier VM-2120/-2240	8
	6.2. Remote Microphone RM-200M	12
	6.3. Remote Microphone Extension RM-210	13

7.SYSTEM CONFIGURATIONS

7.1. Remote Microphone/VM Amplifier Configuration

	(The Number of Connected Units)	14
	7.2. Remote Microphone Operation Panel Function	14
	7.3. Connection between Remote Microphone and VM Amplifier	16
	7.4. Power Supply from the VM Amplifier to Remote Microphone	16
	OPERATIONS
8.	EMERGENCY ("ALERT" AND "EVACUATION") BROADCAST
	8.1. Emergency Broadcast Equipment	18
	8.2. Keys/Indicators Used for Emergency Broadcast	18
	8.3. Emergency Broadcast Operation (Typical Example)	19
	8.4. Emergency Broadcast Sequence	21
9.	BROADCAST OPERATION AT THE AMPLIFIER
	9.1. Microphone Announcements (When Operated by Control Input)	22
	9.2. Background Music Broadcast	22
10.	REMOTE MICROPHONE GENERAL-PURPOSE BROADCAST
	10.1. Operation and Display Sections	23
	10.2. Broadcast Operation	24
11.	GENERAL-PURPOSE BROADCAST PRIORITY
	11.1. Broadcast Source-to-Priority Relationship	27
	11.2. Broadcast Priority between Equipment with the Equal Priority Level
	11.2.1. Priority mode between equipment with the equal priority level	28
	11.2.2. Priority function when 2 broadcasts
	with the equal priority level are simultaneously made	29
	11.3. Priority Function during BGM Broadcast	29
12.	CHIME FUNCTION
	12.1. Available Chime Tone Types
	12.1.1. Seven different chime tones	30
	12.1.2. Six built-in chimes	30
	12.1.3. Pre-recorded chime	30
	12.2. How the Chime Tone Is Used
	12.2.1. Chime tone for Inputs 1 – 3	30
	12.2.2. Telephone paging chime tone	30
	12.2.3. Independent chime activation (remote control)	31
	12.2.4. Westminster chime	32
	AMPLIFIER INSTALLATION
13.	CHOKE COIL INSTALLATION	33
14.	INPUT TRANSFORMER INSTALLATION AND
	ITS BOARD MODIFICATION
	14.1. Transformer Installation	34
	14.2. Switching Off the Phantom Power Supply	35
	14.3. Instructions When the Sub- and Master VM Amplifiers Are Connected	35

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