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* Mitel ST-BUS compatible 4-line x 32-channel inputs 4-line x 32-channel outputs 128 ports non-blocking switch Single power .

This VLSI ISO-CMOS device is designed for switching PCM-encoded voice or data, under microprocessor control, in a modern digital exchange, PBX or Central Office. It provides simultaneous connections for up to 128 64 kbit/s channels. Each of the four .

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