TOA Electronics VM-2120 Voice Announcement Board EV-200, Surveillance Board SV-200M

[Voice Announcement Board EV-200]

The following functions No. 36 through No. 40 are used when an optional EV-200 Board is mounted in the unit.

3937

40	38	36
36. Voice Announcement board volume control		39. CPU status indicator [CPU RUN]
Adjusts the volume for the Voice Announcement		Indicates the EV-200 Board's operation status.
Board.		Normal operation:	Flashes.
37. Eject button		Abnormal operation: Steadily on.
		No operation:	Extinguished.
Press this button to eject the CompactFlash*
(CF) Card.		40. Card access indicator [ACCESS]
* Trademark of SanDisk Corporation		Flashes when the unit is accessing the CF Card,
38. CF card slot [COMPACTFLASH CARD]		and is steadily on when a failure occurs.
Insert the CF Card, the Pre-recorded chime and
message source, into this slot.
Note: Withdrawing the CF card during Message
Broadcast will terminate the broadcast
without completion.

[Surveillance Board SV-200M]

The following functions No. 41 through No. 43 are used when an optional SV-200M Board is mounted in the unit.

41

41.Surveillance input and output connector

[SURVEILLANCE I/O]

A 25-pin, female D-sub connector.

•Features an input to activate the Surveillance (failure detection) function, and an output to indicate the result of failure detection.

•Monitors failures of operations of the unit's power amplifier section, and ground fault of the speaker line, then outputs the result of monitor lighting the Failure Indicator [FAULT] (No. 15).

•The Surveillance function for the speaker line is performed by suspending a broadcast only when the unit is activated from external equipment or the board's internal timer. In this

42 43

case, the indicators of all zones flash to indicate the broadcast is in pause. When the speaker line short is determined, the Failure Indicator [FAULT] (No. 15) lights and at the same time, the corresponding zone indicator flashes.

42.Speaker line impedance setting key [SET] Measures and sets each speaker line reference impedance value. (reference value for surveillance criteria)

43.Line check key [CHECK]

Checks each speaker line impedance for the line failure detection.

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