TOA Electronics VM-2120 Manuel D’Utilisation
46
Function/status
When communications cannot be achieved
between the RM-200M and the VM amplifier
or between VM amplifiers (High state when
communications are restored.)
When the FAULT indicator lamp is on
When an Emergency broadcast is performed
by the VM amplifier or the external equipment.
(See the description of Pin 8 VM amplifier's
broadcast cutoff.)
When the EV-200 Voice Announcement
Board fails.*
1
Pin
No.
22
23
24
25
Signal name
Communications error
Failure indication
Emergency broadcast
on
EV-200's failure
IN
/OUT
OUT
OUT
OUT
OUT
Signal/logic
Active Low
Active Low
Active Low
Active Low
*
1
Requires installation of the optional EV-200 Voice Announcement Board.
*
2
Use this pin to cut off the VM amplifier's power amplifier output to allow the "Emergency broadcast" initiated
by connected external equipment to go through.
by connected external equipment to go through.
[Electrical characteristics]
Input
Open voltage:
3.3 V DC
Short-circuit current: Under 1 mA
Activation:
Activation:
No-voltage make contact (one-shot signal is shown below.)
Output
Circuit:
Open collector (See below.)
Withstand voltage: 30 V DC
Control current:
Control current:
Under 10 mA
Over 100 ms
Control current