Compare Adtran LIU Dual T1 (1180009L1) to Adtran T1 ESF CSU Smart Card DSU / CSU (1202066L1)

The Adtran Total Access 1500 Dual T1 Line Interface Unit (LIU) is a common module plug-in unit that connects the channel bank to a T1 line at the DSX-1 level. All data formatting and line encoding, as well as backplane timing and control, are performed by the ACT LIU. The LIU can be provisioned locally with on-board switches, remotely through the SCU craft interface or remotely through network management. The on-board switches are a subset of the provisioning parameters. All parameters are available when provisioning through the craft interface. A faceplate LED indicates whether the LIU operation mode is based on local or remote provisioning parameters. A dual bantam jack located on the faceplate provides test access of the T1 data stream.??The Dual T1 LIU offers up to two T1s of network bandwidth for POTS and special services deployment from the Total Access 1500. The Dual LIU can be deployed in a universal COT/RT configuration or in an integrated RT-only configuration. When used ... Less

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 1s density for the DTE and T1 network. ??The T1 ESF CSU ACE is suitable for wall-mounting or desktop use, while the T1 ESF CSU Smart 16 Card occupies a single slot in the ADTRAN Smart 16 shelf. A front panel LCD and four user keys on the front of the ACE provide easy configuration and unit monitoring from the front panel. The Smart 16 ESF CSU card can be controlled from the shelf controller through a VT 100 interface or the optional Datamate. For SNMP management, the Smart 16 ESF CSU card is supported by the Smart 16e controller and the ADVISION softw... Less