Toa VX-200SZ-2 - Manual (Page 3)

3
1. GENErAL DESCrIPTION
[VX-200SP-2]
The VX-200SP-2 is an audio signal output module of the VX-2000 system with speaker line pilot tone detection.
This module is to be mounted in the VX-2000SF Surveillance Frame and detects speaker line short circuits,
open circuits by monitoring the terminated resistance value of the End-of-line (EOL) unit, and ground fault.
Connecting the supplied EOL unit to the end of the speaker line eliminates the necessity of using the speaker
line for line monitoring. However, the shielded cable must be used for speaker line.
[VX-200SZ-2]
The VX-200SZ-2 is an audio signal output module of the VX-2000 system with speaker line impedance
detection. This module is to be mounted in the VX-2000SF Surveillance Frame and detects speaker line short
circuits, open circuits by comparing impedance readings, and ground fault. Since the module is equipped with
2 speaker outputs (A and B), broadcasts can be maintained even if one of the two outputs fails. Failures are
indicated by the LEDs on the panel.
2. HANDLING PrECAUTIONS
• Do not install the unit in locations exposed to the direct sunlight or heaters, as the unit could be deformed or
discoloured.
• Avoid installing or storing the unit in dusty or humid locations, as doing otherwise could cause the unit's
failure.
• Keep the unit as far away as possible from a fluorescent lamp, digital equipment, PC or other equipment
which generate high frequency noise.
• Because each unit is not "hot-pluggable," the system needs to be shut down when it is installed or removed.
For turning the system power off, refer to the VX-2000 series Instruction manual.