| 摘要 |
A universal modem platform has different modems integrated therein for matching the protocols of telephone and data communications. The circuit structure of the universal modem platform primarily comprises a mother board and a plurality of baby boards. The mother board has a processing unit, a bit-stream/PCM converter, a cross switch, and high level data link controls. The baby board slot connectors connect the mother board with the baby boards through the cross switch, the bit-stream/PCM converter, and the high level data link controls.
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