TP3404 (qdasl) equivalent, quad digital adapter for subscriber loops (qdasl).
4 COMPLETE ISDN PBX 2-WIRE DATA TRANSCEIVERS INCLUDING Y Quad 2 B plus D channel interface for PBX ‘‘U’’ interface Y 144 kb s full-duplex on 1 twisted pair using Burst Mo.
It is a companion device to the TP3401 2 3 DASL single-channel transceivers In addition to 4 independent transceivers a .
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