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ADTRAN® TSU 120™  ( 1202129L2 )  and TSU 120e™  ( 1202129L1 ) modular, full-featured T1/FT1 multiplexers designed to support a wide range of end-user applications

ADTRAN’s  TSU 120 ( 1202129L2 ) and TSU 120e ( 1202129L1 ) are equipped with both a synchronous V.35 DTE interface and a DSX-1 PBX port, the ADTRAN TSU 120 ( 1202129L2 ) and TSU 120e ( 1202129L1 ) support applications combining digital voice and high-speed data. As interface requirements increase, the flexibility of the ADTRAN TSU 120 ( 1202129L2 ) and TSU 120e ( 1202129L1 )  benefits the user with modularity through its expansion slot. The ADTRAN TSU 120 ( 1202129L2 ) and TSU 120e ( 1202129L1 ) provide complete monitoring and control of the T1 network with embedded simple network management protocol (SNMP) provided through a SLIP interface. The TSU 120e ( 1202129L1 ) also has a built-in 10Base-T Ethernet interface. To support critical data applications, the built-in V.35 interface on the TSU 120e ( 1202129L1 ) can be converted to provide dial backup functionality during T1 failure conditions. This feature is supported by the interface and is available using an optional V.35 “Y” cable. Support for future growth, through the unit’s single expansion slot, is a key feature of the ADTRAN TSU 120 ( 1202129L2 ) and TSU 120e ( 1202129L1 ). The ability to combine many types of plug-in and plug-on modules provides extensive combinations of voice and data interfaces. Several data modules are available for single and dual-port access to Frame Relay, DDS or Basic Rate ISDN services provided over T1 facilities. Voice modules are also easily integrated allowing access to analog voice circuits or additional PBX connections. As a fully functional T1 multiplexer, the ADTRAN TSU 120 ( 1202129L2 ) and TSU 120e ( 1202129L1 ) support all mixed-mode networking applications providing termination for circuits containing voice, data and video channels. Configuration and management of the ADTRAN TSU 120 ( 1202129L2 ) and TSU 120e ( 1202129L1 ) is available through a variety of methods. The ADTRAN TSU 120 ( 1202129L2 ) and TSU 120e ( 1202129L1 ) support SNMP with Gets, Sets and Traps functionality through a built-in agent. ADTRAN MIBs support management for the ADTRAN TSU 120 ( 1202129L2 ) and TSU 120e ( 1202129L1 ) and all installed expansion modules. For access to SNMP features, the TSU 120e (1202129L1 ) has both a 10Base-T Ethernet and a SLIP (EIA-232) connection, while the TSU 120 ( 1202129L2 ) has a SLIP interface only. In addition to SNMP, the unit utilizes the management capabilities found in optional software products from ADTRAN. For Windows based management, the ADTRAN TSU 120 ( 1202129L2 ) and TSU 120e ( 1202129L1 ) is compatible with the popular T-Watch PRO™ software package. For more complex network management systems, ADTRAN’s ADVISION™ operates on an SNMP enterprise management system such as HP OpenView™ and provides full GUI configuration and control via SNMP.

Adtran product information:

ADTRAN TSU 120 ( 1202129L2 )  and TSU 120e ( 1202129L1) data sheet (pdf 67 k)

ADTRAN TSU 120 ( 1202129L2 ) and TSU 120e ( 1202129L1 ) operations manual (pdf  2105 k )

TSU 120 Modules and Accessories:

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Last modified: November 07, 2007