TOA Electronics VM-2120 用户手册

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* This figure shows the relay operation status when the VM amplifier's power is switched off, when it is making

All-zone or emergency broadcast or when its broadcast is cut off due to control from external equipment in
emergency broadcast mode. 

Withstand voltage: 30 V DC, 125 V AC
Contact current:     Under 7 A (DC), under 7 A (AC)

ATTENUATOR
CONTROL*

EXTERNAL SP INPUT

VM amplifier

DIRECT OUT

ZONE 1

ZONE 2

ZONE 3

ZONE 4

ZONE 5

N1 (NC)

N2 (NO)

H

C

C

H

H

C

+

–

H

C

H

C

H

C

H

C

H

C

Relay control

ZONE 1

External attenuators

External DC power supply 
to activate attenuators

H

C

Relay control

ZONE 2

H

C

Relay control

ZONE 3

H

C

Relay control

ZONE 4

H

C

Relay control

ZONE 5