GENERAL PURPOSE BROADCAST VOICE ANNOUNCEMENT BOARD
4-3-1
About the EV-200
The EV-200 digital sound source playback card for automatic broadcast is featured in the VM-2000 Series
lineup. Using the optional card, emergency messages can be automatically broadcast or a chime tone
sounded at preset times when using an external timer.
The following equipment are required to make automatic emergency broadcasts:
• VM-2000 Series System Management Amplifier (VM-2120/2240)
• EV-200 Voice Announcement Board
• CompactFlash (CF) memory card (made by SanDisk)
Messages need to be prerecorded on the CompactFlash memory card,
which requires the following equipment:
• EV-350R Digital Announcer
• CompactFlash memory card adapter
Messages recorded in Program 1 - 8 sectors can be played back. (In the VM amplifier, the attributes of
the message are determined according to the program number. Please refer to the section on how to
make recording.)
<About the Surveillance function>
The EV-200 is provided with a Surveillance function. When a CF card-equipped EV-200 is installed, the VM
amplifier outputs a pilot tone (1 kHz signal) from the EV-200 during periods when messages are not being
broadcast. (This signal is not output to external equipment.) The VM amplifier constantly monitors this signal
and checks to ensure that the EV-200 is operating correctly. If there is no card inserted, or any irregularities
occur in the EV-200 to cause the VM amplifier not to detect the pilot tone, the EV Failure Output terminal will
switch to "make" status, causing the VM amplifier's Failure indicator to light.
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