Cisco 16-Port 1G + 4-Port 2.5G Service Module – Multi-Gigabit Expansion with SFP28/SFP+ Support

The Cisco Service Module is a high-performance, scalable expansion solution designed for optical networks and data networking environments. Engineered for reliability in enterprise deployments, it combines multi-gig copper connectivity with flexible fiber options, enabling seamless integration into Cisco switches and routers. With 16 x RJ-45 1000Base-T LAN ports and 4 x RJ-45 2.5GBase-T LAN ports, this module delivers robust, industry-standard Ethernet performance while providing the option to upgrade through SFP28/SFP+ expansion slots. Built to support modern workloads—ranging from VoIP and video conferencing to cloud-backed applications and large data transfers—this service module is a versatile centerpiece for campus, data center, and branch deployments. Its plug-in design promotes easy scalability, enabling organizations to adjust their network capacity as needs evolve without a complete chassis replacement.

• Multi-gig copper and copper-fast Ethernet: 16 x RJ-45 1000Base-T LAN ports combined with 4 x RJ-45 2.5GBase-T LAN ports provide foundational Ethernet bandwidth for a variety of devices, including servers, desktops, IP phones, and edge switches, while preserving compatibility with existing copper cabling.
• Optical and copper versatility via expansion: The module supports optical network growth through its SFP28 and SFP+ expansion slots, enabling high-speed uplinks and fiber connectivity to core networks or data center fabrics when paired with compatible transceivers.
• Advanced scalability: With 2.0 x Expansion Slots, users can deploy SFP28/SFP+ transceivers to reach 25G/40G/100G or other optical speeds, future-proofing the network and simplifying capacity planning as traffic patterns evolve.
• Plug-in modular design: The plug-in architecture allows rapid installation and field upgrades, reducing downtime and maintenance complexity while preserving a clean, modular network topology that is easier to manage and troubleshoot.
• Cisco reliability and ecosystem: Built to integrate with Cisco switching environments, this service module leverages Cisco’s robust firmware, management tools, and support ecosystem to deliver stable operation, simplified monitoring, and consistent security policies across the network.

Technical Details of Cisco Service Module

• Product: Cisco Service Module
• Form factor: Plug-in module for compatible Cisco switching hardware
• LAN ports: 16 x RJ-45 1000Base-T
• Additional ports: 4 x RJ-45 2.5GBase-T
• Expansion: 2.0 x Expansion Slots for SFP28/SFP+ transceivers
• Expansion support: Optical fiber and twisted-pair options via SFP28/SFP+ modules
• Target networks: Optical Network and Data Networking environments
• Compatibility: Designed to work within Cisco networking ecosystems and management tools
• Power and cooling: Integrated with standard chassis power and thermal management (as applicable to the host device)
• Notes: Specifications are based on SKU/UPC references; exact details may vary by model and vendor documentation

How to install Cisco Service Module

Prepare your equipment and workspace to install the Cisco Service Module, ensuring compatibility with your chassis or switch platform and confirming that you have the correct SFP28/SFP+ transceivers if you plan to use fiber uplinks. Follow these steps to install the module efficiently and safely:

• Power down the host device (switch or router) and unplug any connected cables to prevent accidental damage during insertion.
• Identify the correct expansion slot(s) on the chassis that are designated for optional service modules, ensuring there are no conflicting modules installed.
• Align the Cisco Service Module with the slot guides and carefully insert the module until it seats firmly in place. Avoid applying excessive force to prevent damage to the motherboard or connectors.
• Secure the module using any mechanical latches or screws specified by the chassis design, ensuring a stable and vibration-free installation.
• Reconnect power and network cables, then power on the device. Verify that the module initializes correctly and that the status indicators on the module and host switch show healthy operation.
• Configure the module within the Cisco management interface (CLI or GUI) to enable the 16 x 1000Base-T ports and 4 x 2.5GBase-T ports. If you intend to use SFP28/SFP+ transceivers, install the appropriate modules into the expansion slots and configure the corresponding interfaces accordingly.
• Test connectivity across the new ports, verifying link establishment, speed negotiation, and traffic flow. Monitor performance with the Cisco management tools to confirm expected throughput and latency characteristics.

Frequently asked questions

Q: What environments is the Cisco Service Module suited for?
A: It is designed for Optical Network and Data Networking environments across enterprise campuses, data centers, and branch offices, offering flexible copper and fiber options to match diverse networking needs.

Q: How many Ethernet ports does the module provide?
A: The module provides 16 x RJ-45 1000Base-T ports and 4 x RJ-45 2.5GBase-T ports, delivering a balanced mix of gigabit and multi-gigabit copper connectivity.

Q: Can I use fiber connections with this module?
A: Yes. The module includes expansion slots for SFP28 and SFP+ transceivers, enabling fiber-optic uplinks and integration with high-speed optical networks when paired with appropriate modules.

Q: Do I need to replace other devices to upgrade throughput?
A: In many cases, you can enhance capacity by adding the Service Module to a compatible Cisco device, leveraging its expansion slots to scale up to multi-gig speeds without replacing the entire chassis. Specific upgrade paths depend on your current hardware and software licenses.

Q: How is management handled for this module?
A: Management is integrated with Cisco’s standard management tools, offering CLI and GUI options, monitoring dashboards, and policy enforcement that align with your existing Cisco network operations. This ensures consistent configuration, security, and troubleshooting across the network stack.

Q: Are there any compatibility considerations I should be aware of?
A: Ensure the module is inserted into a compatible Cisco switch or router that supports plug-in service modules and that you select the correct SFP28/SFP+ transceivers for fiber connectivity. Always refer to vendor documentation for your specific SKU or UPC to confirm compatibility and supported firmware versions.