DSU / CSU, External Enclosure, Serial V.35 Interface, 1.544 Mbps
Kentrox DataSMART® 558 DSU / CSU (KEN72558) - The DataSMART Single-port Plug-In DSU/CSUs are designed for high-density T1/FT1 network installation. These DSUs provide rapid expansion capabilities and comprehensive management options appropriate for central offices, and corporate and government networks.