61223HDSL4L2-5C 1HDSL4 for General DistributionPRODUCT DESCRIPTIONThe HDSL4 modules referenced in this document are used to deploy a T1 circuit using 4-wiremetallic facilities. HDSL4 provides extended range to DS1/T1 transport while providingspectral compatibility with ADSL and other transport technologies. The ADTRAN HDSL4Transceiver Unit for Central Office (H4TU-C) works in conjunction with the ADTRAN HDSL4Remote Transceiver Unit (H4TU-R) to provide extended-range DS1 service on the local loop.The H4TU-C receives DSX-1 signals, converts them, and provides HDSL4 signals to the localloop. The H4TU-R receives the HDSL4 signals from the H4TU-C and provides DS1 signals tothe customer. Up to three H4R repeaters may be utilized to extend the service range. See“HDSL4 Deployment Guidelines” on page 55 for details.New features available with this product release are described in detail in “Appendix B,HDSL4 Features”.Table 1 lists the ADTRAN HDSL4 Central Office modules approved for general distribution.Table 2 lists the ADTRAN HDSL4 remote modules provided for general distribution.Table 1. HDSL4 Central Office ModulesHDSL4 Module Part Number CLEI CodeTotal Access 3000 H4TU-C 1181413L2 SIC4W3XD_ _220 H4TU-C 1223401L2 T1L8PNMC_ _DDM+ H4TU-C 1223403L2 T1L8VOSC_ _3192 H4TU-C 1223404L2 T1L8YHWC_ _3192M H4TU-C 1223404L12 T1L9EFGA_ _T200 H4TU-C 1223406L2 T1T2JE0B_ _Table 2. HDSL4 Remote ModulesHDSL4 Module Part Number CLEI CodeT200 H4TU-R, Local Powered 1223424L2 T1L497PC_ _T200 H4TU-R, Span Powered 1223426L2 T1L85M7C_ _
