TP3406 loops equivalent, dasl digital adapter for subscriber loops.
Complete ISDN PBX 2-Wire Data Transceiver including Y 2 B plus D channel interface for PBX U Interface Y 144 kb s full-duplex on 1 twisted pair using Burst Mode Y Loop ra.
typically in a PBX environment providing transmission for 2 B channels and 1 D channel On 24 cable the range is up to 80.
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