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Cisco 7604 optical module model

ODN and passive infrastructure knowledge brief Published 08 Aug 2023

Prepared for preliminary research by the GESTIONVAL ODN knowledge desk. Confirm network topology, split ratio, box or cabinet capacity, joint closure rating and loss budget against current standards and product documentation.

The Cisco 7604 router supports multiple Optical Services Modules (OSMs), including OSM-4OC3-POS, OSM-2OC12-POS, and OSM-1OC48-POS-SS.Supported Optical Services Modules

The Cisco 7604 router, part of the 7600 Series, supports a range of OSMs designed for high-speed optical connectivity :

  • OSM-4OC3-POS: A 4-port OC-3 Packet over SONET (POS) module providing full-duplex operation at 155 Mbps per port. Half-duplex operation is not supported .
  • OSM-2OC12-POS: A 2-port OC-12 POS module with full-duplex operation at 622 Mbps per port. This module uses SC fiber connectors and supports both multimode (MMF) and single-mode fiber (SMF) connections .
  • OSM-1OC48-POS-SS: A 1-port OC-48 POS module designed for high-speed 2.5 Gbps full-duplex operation. It is suitable for service provider and enterprise WAN applications requiring high bandwidth .
Key Features
  • Compatibility: These OSMs are compatible with the Cisco 7604 chassis and other 7600 Series routers, as well as Catalyst 6500 series switches .
  • Installation: Modules are installed in available slots, with slot 1 reserved for the supervisor engine. Slot 2 can host a redundant supervisor or an additional module if redundancy is not required .
  • Fiber Types: SC connectors support both multimode and single-mode fiber, allowing flexible deployment in different network environments .
  • Full-Duplex Operation: All OSMs operate in full-duplex mode, ensuring high-performance data transfer without collisions .
Additional Considerations
  • Software Support: Ensure the Cisco IOS version supports the installed OSMs. Release notes for Cisco IOS 12.1E and 12.2SX provide detailed compatibility information .
  • Redundancy and High Availability: The 7604 chassis supports dual supervisor engines and redundant power supplies, which can enhance reliability when using OSMs .
  • Port Adapter Integration: The Cisco 7604 also supports Shared Port Adapters (SPAs) and SPA Interface Processors (SIPs), which can complement OSM deployment for additional interface flexibility . These modules allow the Cisco 7604 to handle a wide range of optical networking requirements, from OC-3 to OC-48 speeds, making it suitable for enterprise WAN aggregation and service provider edge applications .

Cisco 7604 optical module model - GESTIONVAL ODN INFRASTRUCTURE S.L. [PDF]

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Technical note

This reference is intended for preliminary ODN and passive infrastructure research. Topology, split ratio, box or cabinet capacity, closure rating, cable type, test limits and applicable standards must be verified for the specific project.

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