T1/E1 Access

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.

Products by Line/Family

ESU Series

Standalone single-port E1 DSU/CSUs

ESU LT

Standalone single-port E1 DSU/CSU providing a DB-25 DTEinterface supporting V.35, V.36, X.21/V.11 or EIA-530

T1 CSU Series

T1 CSUs

T1 CSU ACE

Standalone T1 CSU used to connect T1 DTE equipment to networkT1 circuits

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 Multiplexers

TSU Multiplexers aggregate voice only or voice and data services

TDU 120e

Modular T1/FT1 DSU/CSU with embedded SNMP providing a V.35 DTE interface, DSX-1 interface and a single expansion slot (1U 19" rackmount)

TSU Single-port Units

T1 CSU and single-port DSU/CSUs

TSU ACE

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

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 Metal

T1/FT1 DSU/CSU in a ruggedized metal chassis providing a single V.35 DTE interface (includes bantam test jacks and control ports)