Alcatel-Lucent 3AL78832AA AF02 1650SM-C A21E1 Service Interface Board

The Alcatel-Lucent 3AL78832AA AF02 1650SM-C A21E1 is a service interface board designed for high-density E1 service aggregation and transport in the 1650 Synchronous Multiplexer - Compact (1650SM-C) platform for SDH/SONET network architectures. This module provides twenty-one independent E1 client interfaces operating at 2.048 Mbps for aggregating legacy TDM services, cellular backhaul traffic (2G/3G base station connectivity), and enterprise leased line services onto synchronous optical network infrastructure in compact form factor deployments. The 1650SM-C A21E1 card features balanced 120Ω RJ-48 connectors or unbalanced 75Ω BNC connectors for flexible integration with existing copper infrastructure in central office and remote node applications. The board implements comprehensive SDH/SONET framing, pointer processing, and virtual container (VC-12) mapping per ITU-T G.707 and ETSI EN 300 343 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 path overhead parameters, and Quality of Service (QoS) enforcement with traffic prioritization. Integration with the 1650SM-C 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. Power is supplied via −48 V DC backplane distribution with hot-swappable design. Environmental specifications comply with ETSI EN 300 019 Class 3.1 and NEBS GR-63 Level 3 standards, supporting operation from 0 °C to +45 °C.