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TP3404

Part Number	TP3404
Manufacturer	National Semiconductor
Description	Quad Digital Adapter for Subscriber Loops (QDASL)
Published	Apr 16, 2005
Detailed Description	TP3404 Quad Digital Adapter for Subscriber Loops (QDASL) PRELIMINARY July 1994 TP3404 Quad Digital Adapter for Subscri...
Datasheet	TP3404 PDF File

Overview

TP3404 Quad Digital Adapter for Subscriber Loops (QDASL) PRELIMINARY July 1994 TP3404 Quad Digital Adapter for Subscriber Loops (QDASL) General Description The TP3404 is a combination 4-line transceiver for voice and data transmission on twisted pair subscriber loops typically in PBX line card applications It is a companion device to the TP3401 2 3 DASL single-channel transceivers In addition to 4 independent transceivers a time-slot assignment circuit is included to support interfacing to the system backplane Each QDASL line operates as an ISDN ‘‘U’’ Interface for short loop applications typically in a PBX environment providing transmission for 2 B channels and 1 D channel Full-duplex tra...

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