ADTRAN 1204025L2 ESF T1 CSU 24V 4TH GEN

The ADTRAN T1 ESF CSU is a full-featured T1 Channel Service Unit used to connect T1 data terminal equipment (DTE) such as a PBX, switch or channel bank to T1 facilities. Capable of interfacing to both B8ZS or AMI circuits, the T1 ESF CSU can convert signal formats or line code to integrate older equipment. The ESF CSU is designed to provide alarms, loopbacks, signal regeneration, line build-out, and surge protection, while maintaining 1's density for the DTE and T1 network. The T1 ESF CSU ACE is suitable for wall- or rackmounting or desktop use, while the T1 ESF CSU Smart 16 Card occupies a single slot in the rackmount ADTRAN Smart 16 shelf. The standalone models provide a front panel LCD, four user keys on the front of the ACE, and provides easy configuration and unit monitoring from the front panel.