Paradyne's sophisticated ACCULINK 3150 Extended Superframe Format (ESF) T1 Channel Service Unit (CSU) is a full-featured CSU, which directly connects to multiple formatting environments, including D4 and ESF T1 facilities. The ACCULINK 3150 CSU provides optimum T1 network performance through a wide range of powerful features, including in-service diagnostics and T1 network protection. Compact and flexible, the ACCULINK 3150 CSU combines a wide range of innovative features to allow your network to evolve to emerging digital network standards with minimal disruption. For example, the ACCULINK 3150 CSU's design supports diversity in your T1 network by accepting T1 framing standards such as D4 or ESF, as well as line coding standards B8ZS or AMI for protection of your installed equipment base. With the ACCULINK 3150 ESF T1 CSU, you gain maximum capability and flexibility in your T1 network. High performance is achieved through the CSU's unparalleled versatility. The ability to download software provides up-to-the-minute access to the newest upgrades and technology, eliminating on-site re-engineering and protecting your network investment. Ease-of-use and installation are enhanced by the ACCULINK 3150 CSU's many configuration options. Diagnosis is simplified with an embedded SNMP agent and standard MIB support. Remote diagnostics can be performed through the integral dial modem to determine trouble sources before dispatching maintenance personnel, increasing network operator productivity.