Alcatel-Lucent 3AL91790AA AB01 IS-1.1 Service Interface Board

The Alcatel-Lucent 3AL91790AA AB01 IS-1.1 is a service interface board engineered for multi-service aggregation and transport in the 1660 Synchronous Multiplexer (SM) platform for SDH/SONET network architectures. This module provides flexible client interface capabilities for aggregating legacy TDM services, Ethernet traffic, and data services onto synchronous optical network infrastructure. The IS-1.1 card supports multiple service types including E1/T1, E3/T3, STM-1/OC-3, and Ethernet interfaces with configurable port assignments and dynamic bandwidth allocation optimized for metro access and aggregation applications. The board implements comprehensive SDH/SONET framing, pointer processing, and virtual container (VC-12/VC-3/VC-4) mapping per ITU-T G.707 and ANSI T1.105 specifications with support for concatenated and virtual concatenation (VCAT) modes. Advanced features include automatic protection switching (APS) with sub-50ms switchover, loopback testing capabilities for service validation and fault isolation, performance monitoring of bit error rate (BER), code violations, eroded seconds, and section/path overhead parameters, and Quality of Service (QoS) enforcement with traffic prioritization for Ethernet services. Integration with the 1660SM shelf backplane provides connectivity to cross-connect matrices for flexible traffic grooming and bandwidth management across the transport network. Management interfaces include TL1, SNMP v3, and proprietary element management system protocols for integration with Alcatel-Lucent's 1350 OMS and third-party network management systems. Power is supplied via −48 V DC backplane distribution with hot-swappable design enabling field replacement without service disruption. Environmental specifications comply with ETSI EN 300 019 Class 3.1 and NEBS GR-63 Level 3 standards, supporting continuous operation in controlled telecommunications facilities with ambient temperatures from 0 °C to +45 °C and relative humidity up to 95% non-condensing. The module is validated for deployment in Alcatel-Lucent 1660SM transport platforms and ensures compliance with ITU-T G.783, G.826, G.828, and MEF standards for carrier-grade multi-service delivery.