Cisco LC-4OC3/POS-MM 12000 4-Port OC3/STM1 Packet Over SONET/SDH Multi-Mode Line Card

Cisco LC-4OC3/POS-MM

The Cisco 12000 4-Port OC3/STM1 Packet Over SONET/SDH Line Card is a high-performance, multi-mode solution designed for enterprise and service provider networks that require reliable, high-speed data transport. This line card delivers four OC3 (or STM1) channels, each capable of carrying packetized Ethernet traffic over a traditional SONET/SDH backbone with minimal latency and maximum throughput.

Key Features

• 4 independent OC3/STM1 ports for scalable bandwidth allocation
• Packet Over SONET/SDH (POS) support for seamless Ethernet integration
• Multi-mode fiber compatibility reduces deployment costs in existing infrastructure
• Low power consumption and compact form factor fit standard 12U chassis
• Integrated monitoring and management via Cisco IOS XE for real-time performance visibility
• Redundant power supplies and hot-swappable design ensure high availability

Technical Specifications

• Port Speed: OC3 (155.52 Mbps) / STM1 (155.52 Mbps)
• Maximum Transmission Distance: 80 km over multi-mode fiber
• Power Consumption: < 300 W per card
• Dimensions: 12U x 2 slots
• Operating Temperature: -20°C to +70°C
• Supported Protocols: Ethernet, IP/MPLS, Pseudowire, ATM over SONET/SDH

Applications

• Enterprise campus interconnects requiring high-density optical links
• Service provider edge routers for broadband and carrier-grade services
• Data center interconnect (DCI) where POS enables efficient transport of Ethernet frames over legacy SONET/SDH cores
• Disaster recovery and backup sites that need reliable, low-latency optical paths
• Telecommunications infrastructure upgrades where multi-mode fiber is already deployed

This line card empowers network operators to deliver high-capacity, packet-based services over proven SONET/SDH platforms, combining Cisco reliability with cost-effective deployment.