T3SU 300 AC (T3 DSU-CSU for unchannelized T3 applications. Ability to support up to 4 DTE ports. Single integrated HSSI port, SCSI-II 50 pin female connector and three hot swappable option slots.

The ADTRAN T3SU 300 is a T3 DSU-CSU capable of providing users up to four DTE data ports. This multiport DSU-CSU provides access to non-channelized T3 services and allows users to share the cost of a T3 line between multiple applications. With support for HSSI V.35 and DSX-1 interfaces along with SNMP-Telnet support the T3SU is the most feature rich T3 DSU-CSU available.