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T1 / E1 Access
T1 Termination

ADTRAN's TSU Series is the world's number one T1 DSU/CSU product line and offers the broadest line of T1/E1 termination equipment available on the market today. Models range from single-port DSU/CSUs to full-featured, multiport multiplexers. Multiport models accept numerous application modules for voice, data, disaster recovery, and much more. ADTRAN also offers a full line of CSUs for lightening protection and circuit termination along with more advanced T1/E1 access solutions like our widely deployed NetVanta line of IP Access Routers for T1/E1 networks.

T1 CSU Series

T1 CSUs

T1 CSU ACE

T1 CSU ACE

Quad T1 and Ethernet IPBG with 30 and 60 channel DSP

T1 ESF CSU ACE

T1 ESF CSU ACE

Standalone T1 CSU used to connect T1 DTE equipment to network T1 circuits & also supports line coding & framing conversion (AC Only)

TSU Single-port Units

T1 CSU and single-port DSU/CSUs

TSU ACE

TSU ACE

T1/FT1 DSU/CSU providing a single V.35 DTE interface (does not include bantam test jacks or control ports)

TSU ESP

TSU ESP

T1/FT1 DSU/CSU providing a single V.35 DTE interface with optional SNMP and Dial-Backup (includes bantam test jacks and control ports)

TSU LT

TSU LT

Low-cost, single-port T1/FT1 DSU/CSU Single V.35 DTE interface for applications