Alcatel-Lucent 90-6702-02-00-G OC12c IR STM4 IR Line Interface Module

The Alcatel-Lucent 90-6702-02-00-G OC12c IR STM4 IR is a line interface module engineered for optical transport of OC-12/STM-4 synchronous digital hierarchy services in SDH/SONET network platforms for metropolitan and regional telecommunications infrastructure. This module provides comprehensive optical interface functionality for 622.08 Mbps concatenated optical channel transmission and reception with intermediate reach capabilities for metro access and aggregation network deployments. The OC12c IR STM4 IR card implements advanced optical physical layer functionality including optical-to-electrical and electrical-to-optical conversion, clock recovery, jitter attenuation, frame synchronization, and section/line overhead processing per ITU-T G.957, G.783, and ANSI T1.105 specifications for reliable synchronous optical network transport. The board features integrated optical transceivers with distributed feedback (DFB) or Fabry-Perot (FP) laser diodes and PIN photodiode receivers supporting intermediate reach (IR) transmission distances typically ranging from 15 km to 40 km over standard single-mode fiber (G.652) depending on specific variant and network conditions. Advanced features include automatic laser control (ALC) for stable optical output power, temperature compensation for wavelength stability, automatic power shutdown (APS) for fiber break protection, comprehensive performance monitoring of optical transmit power, optical receive power, bit error rate (BER), code violations, eroded seconds, and unavailable seconds, and support for concatenated payload structure (VC-4-4c/STS-12c) for efficient bandwidth utilization. The module supports integrated loopback testing capabilities (local and remote) for service validation and fault isolation, alarm indication signal (AIS) generation and detection, remote defect indication (RDI), and loss of signal (LOS), loss of frame (LOF), and alarm indication signal path (AIS-P) detection for comprehensive fault management. Integration with the transport shelf backplane provides connectivity to cross-connect matrices, timing distribution units, system control processors, and protection switching modules for coordinated network operation and automatic protection switching (APS) with sub-50ms switchover for carrier-grade availability. Management interfaces include TL1, SNMP v3, NETCONF/YANG, and proprietary element management system protocols for integration with Alcatel-Lucent's 1350 OMS and third-party network management systems, providing access to optical power levels, performance statistics, alarm status, loopback configuration, and diagnostic information. The OC12c IR STM4 IR implements redundant protection architectures including 1+1 optical line protection, multiplex section protection (MSP), and subnetwork connection protection (SNCP) with automatic revertive and non-revertive modes. Power is distributed via −48 V DC backplane with integrated voltage regulation, current monitoring, and overcurrent protection. 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 OC12c IR STM4 IR is validated for deployment in Alcatel-Lucent 1650SM/1660SM/1670/1696MS series SDH/SONET transport platforms and ensures compliance with ITU-T G.703, G.707, G.783, G.825, G.826, G.828, G.957, ANSI T1.105, Telcordia GR-253/GR-487, and ETSI EN 300 417 standards for carrier-grade OC-12/STM-4 optical line interface functionality and SDH/SONET network interoperability.