Panasonic's VB-444302 provides the time switch circuitry required for up to 576 ports. This card must be used with the CPC-576. This unit installs in the first option slot of the first Base Cabinet. Only one card can be installed in a system.
This card provides:
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Time switch (24 highway x 24 highway)
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Service tones
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DTMF generator
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Connecting terminals for network synchronizing unit interface
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Eight 3-party conference circuits
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