AdTran Model TSU 600e, 6 module unit, full-featured T1/FT1 Multiplexer designed to support a wide range of end-user applications. Through the six expansion slots on the rear of the TSU 600e, the user has complete flexibility in the type of DTE interfaces required for the T1 application. By supporting up to 24 DTE interfaces, the TSU 600e provides the same functionality as a traditional channel bank, while providing a small form factor and end-user oriented features. The TSU 600e provides complete monitoring and control of internal functions with embedded Simple Network Management Protocol (SNMP) provided through a SLIP interface. The TSU 600e has the added benefit of an integrated 10BaseT Ethernet interface. To support critical applications, the TSU 600e also has the capability to support dual redundant power supplies internally. The power supply module is capable of supporting a fully loaded TSU 600e and is hot-swappable.