Connection method vs. Distance | TOA Electronics VM-2120 instruction

7.3. Connection between Remote Microphone and VM Amplifier

[Connection method vs. Distance]

Using the specified cable, connect between the VM amplifier(s) and Remote Microphone(s) via their LINK connectors. They can be connected in any order. (Two connection examples are shown.)

Connection example 1

		Category 5 STP straight cable*	LINK connector (RJ45)
a	b	c	d	e

Remote

microphone

Remote

microphone

Remote

microphone

Remote

microphone

Master VM

amplifier

Sub-VM amplifier

24 V DC

Power supply

24 V DC

Power supply

24 V DC

Power supply

PRE OUT jack

POWER AMP IN jack

Audio cable

Connection example 2

Category 5 STP straight cable*

LINK connector (RJ45)

a

b

c

Remote

Remote

Master VM

Sub-VM

microphone

microphone

amplifier

amplifier

de

Remote

microphone

Remote

microphone

24 V DC

Power supply

PRE OUT jack

POWER AMP IN jack

Audio cable

24 V DC

Power supply

24 V DC

Power supply

*TIA/EIA-568A standard Category 5 Shielded Twisted-Pair cable (straight type) Abbreviated to "Cat. 5 STP cable."

The total length of LINK-to-LINK connection cables must be under 800 m (when connected using Category 5 STP cable).

a + b + c + d + e

800 m

7.4. Power Supply from the VM Amplifier to Remote Microphone

The VM amplifier can only supply power to one Remote Microphone. Therefore, each of the remaining Remote Microphone(s) needs to have a 24 V DC power supply (AC adapter) of its own.

(1) Power supply via Category 5 STP cable

Category 5 STP straight cable

VM amplifier

Remote

microphone

Up to 800 m via Category 5 STP cable

Category 5 STP cable: 93.8 Ω/km or less

16

Image 16

TOA Electronics VM-2120 Connection between Remote Microphone and VM Amplifier, Connection method vs. Distance

Contents

System Management Amplifier Table of Contents Remote Microphone Installation Safety Precautions Safety Symbol and Message ConventionsWhen Installing the Unit When the Unit is in Use When Installing the Unit Features General DescriptionSystem Management Amplifier VM-2120/VM-2240 Remote Microphone RM-200M Handling Precautions Installation PrecautionsVM-2120/VM-2240 and RM-200M/RM-210 VM-2120/VM-2240 Nomenclature and Functions System Management Amplifier VM-2120/-2240 Front Rear Function switch Settings An 8-bit DIP switch and selects Control input and output connector Control I/ODC power input Signal earth terminal Voice Announcement Board EV-200 Surveillance Board SV-200M Remote Microphone RM-200M Top Rear Right Side Left Side System Configuration Remote Microphone Operation Panel Function Speaker zones with 2 VM amplifiers Connection between Remote Microphone and VM Amplifier Power Supply from the VM Amplifier to Remote MicrophoneConnection method vs. Distance Power supply using cables other than Category 5 STP cable Keys/Indicators Used for Emergency Broadcast Emergency Alert and Evacuation BroadcastEmergency Broadcast Equipment System management amplifier VM-2120/-2240 Alert announcement example*3 Emergency Broadcast Operation Typical ExampleEvacuation announcement example*4 Page Emergency Broadcast Sequence Emergency modeRestoration to general-purpose broadcast Broadcast Operation AT the Amplifier Microphone Announcements When Operated by Control InputBackground Music Broadcast Remote Microphone GENERAL-PURPOSE Broadcast Broadcast volumeOperation and Display Sections Broadcast Operation Press-to-talk operation Operation below follows on the previous Lock operation GENERAL-PURPOSE Broadcast Priority Broadcast Source-to-Priority Relationship Zone Broadcast source Made a broadcast last Priority Function during BGM Broadcast Available Chime Tone Types Chime FunctionHow the Chime Tone Is Used Independent chime activation remote control Operating procedure Westminster chime Choke Coil Installation Input Transformer Installation and ITS Board Modification Transformer InstallationInputs 1 Remote Microphone RM or Telephone Paging TEL Switching Off the Phantom Power Supply RM/TEL input transformer board EV-200 surveillance signal output Switch No Mounting AN Optional EV-200 Voice Announcement Board CF Card security cover Speaker line surveillance activation time Mounting AN Optional SV-200M Surveillance BoardCommunications with VM VM-2120 or VM-2240 amplifier Surveillance I/O blank panel Rack Mounting Amplifier Input ConnectionTwo Amplifiers Stack-Connection Microphone Connection to the VM Amplifier Telephone Paging Input Connections External Attenuator Control Wiring Wire System Connection Attenuator C CONTROL*1 How to remove cables from connector Connector pin assignmentChanging the Speaker Line Voltage Control I/O Connector Functions Control I/O connector pin function table Electrical characteristics Surveillance I/O Connector Functions Surveillance I/O connector pin function table Chime Selection table VM Amplifiers Internal Function Switches Connected unit No. table SW3 Remote Microphones Function SwitchesRM RM-200M Unit No. table Broadcast GROUP/ZONE Setting Setting example mark indicates Set stateDefault setting Routing Assignment Operating Keys Recorded Message-to-Group assignment Zone-to-Group Assignment Operation Lighting status All zones setting and its cancellation Group setting contents check Indicator status Operation for zone selection and its cancellation Dual indication of group and zone selections Operation for group selection and its cancellation Message setting contents checkDual indication of setting item and group selections Recorded Message-to-Group Assignment Operation Linkage Between Remote Microphone and ITS Extension Amplifiers Label Preparation Name Label PreparationRemote Microphones Label Preparation Pattern paper for hand writing Dimensional diagram for printing devices Setting items and contents Compactflash CF Card RecordingRecording Message Program/Sentence Composition Example Message Program Example VM-2120/-2240 Specifications System Management Amplifier VM-2120/-2240 To be AWG Remote Microphone RM-200M Accessories Optional productsRemote microphone extension RM-210 Voice announcement board EV-200Page 133-12-726-70