Central Office (CO) unit used to deploy an HDSL2 T1 circuit using 2-wire metallic facilities. The unit occupies one slot in an AT&T DDM+ DS1 Extension shelf. DSX-1 signals are provided to and received from the network while HDSL2 signals are provided to the local loop. Works in conjunction with the ADTRAN H2TU-R to provide a DS1 service up to 12,000 feet on the local loop. The H2TU-C can be deployed in circuits consisting of one H2TU-C and one H2TU-R.
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Introduction
ADTRAN, Inc. is a leading global provider of networking and communications equipment with an innovative portfolio of more than 1,600 solutions for use in the last mile of today’s telecommunications networks. Widely deployed by carriers, distributed enterprises and Small- and Medium-sized Businesses (SMBs), ADTRAN solutions enable voice, data, video, and Internet communications across copper, fiber, and wireless network infrastructures. ADTRAN solutions are currently in use by every major U.S. se