Cisco WS-X4748-RJ45V+E Line Card

Upgrade your Cisco Catalyst storage, campus, and data-center networks with the Cisco WS-X4748-RJ45V+E Line Card. This 48-port, copper-based module brings robust 10/100/1000BASE-T connectivity to large-scale chassis environments, delivering flexible, high-density Ethernet in a compact, hot-swappable form factor. Built for reliability and performance, the WS-X4748-RJ45V+E is an ideal solution for enterprises seeking seamless Gigabit Ethernet expansion, improved network aggregation, and scalable service delivery without a complete rack refresh. With Layer 2 switching capabilities, VLAN tagging, and QoS features, it ensures that critical applications such as voice over IP, video conferencing, and data-intensive workloads receive priority treatment while maintaining backward compatibility with existing copper networks.

• 48 RJ-45 ports providing 10/100/1000BASE-T connectivity enable high-density copper Ethernet for large access-layer deployments. This allows you to scale your network quickly by adding more devices to the same chassis, saving rack space and reducing the need for additional switches while preserving familiar copper cabling.
• Auto-negotiation and auto-MDIX on every port simplify installation and reduce misconfiguration risk. The line card automatically negotiates speed and duplex with connected endpoints, ensuring optimal link performance and minimizing on-site troubleshooting time.
• Advanced Layer 2 features, including VLAN tagging (802.1Q) and QoS (Quality of Service), help you segment traffic, prioritize latency-sensitive applications, and maintain predictable performance across mixed workloads. This is essential for supporting voice, video, and mission-critical data on a single platform.
• Hot-swappable design enables in-rack upgrades and maintenance without powering down the entire chassis in compatible Cisco environments. This reduces downtime, accelerates deployment timelines, and supports routine upgrades with minimal service interruption.
• Designed for Cisco Catalyst ecosystems, delivering reliable interoperability with Cisco IOS, security policies, and centralized management. The WS-X4748-RJ45V+E integrates with standard Cisco management workflows, SNMP monitoring, and network policy enforcement to simplify administration and increase overall network uptime.

Technical Details of Cisco WS-X4748-RJ45V+E Line Card

• Get this information from the "specifications" section of the product from https://ec.synnex.com/ using the product's UPC or SKU as reference.

How to install Cisco WS-X4748-RJ45V+E Line Card

• Power down the chassis only if your maintenance protocol requires a complete shutdown. If your environment supports hot-swapping, verify that the chassis and slot are configured for hot-swappable modules and that you have the appropriate procedures in place to manage in-service maintenance.
• Identify a compatible slot in the Catalyst chassis and align the WS-X4748-RJ45V+E line card with the slot connector. Gently insert the module until you feel it seated, then secure any locking levers or brackets according to your chassis model's guidelines.
• Verify physical compatibility and firmware version prerequisites. Check Cisco documentation for supported IOS versions or NX-OS images, and perform any recommended firmware updates before or during installation to ensure full feature support and interoperability.
• Reconnect all external copper cables to the appropriate ports and confirm cable integrity. Use high-quality Cat5e/Cat6 cabling to maximize performance and minimize interference, keeping runs within recommended lengths for 1 Gbps links.
• Power up and configure the line card through the Cisco management interface. Assign VLANs, configure port-based security if needed, and apply QoS policies to prioritize critical applications. Monitor port status lights and use the management console or SNMP to verify healthy operation and connectivity across all ports.

Frequently asked questions

• Q: What is the Cisco WS-X4748-RJ45V+E Line Card used for? A: It provides 48 copper Ethernet ports (10/100/1000BASE-T) for scalable, high-density network connectivity in compatible Cisco Catalyst chassis, enabling flexible expansion of access-layer and distribution-layer interfaces.
• Q: Is this line card hot-swappable? A: Yes, when installed in a compatible chassis, the WS-X4748-RJ45V+E supports hot-swapping, allowing maintenance or upgrades without a full system shutdown in many deployment scenarios.
• Q: What speeds do the ports support? A: Each port automatically negotiates to 10, 100, or 1000 Mbps based on the connected device, ensuring optimal performance with a wide range of endpoint hardware.
• Q: Which Cisco platforms are compatible with this line card? A: The WS-X4748-RJ45V+E is designed for select Cisco Catalyst chassis. Always verify model compatibility, IOS/NX-OS version requirements, and slot availability with Cisco documentation before purchase.
• Q: Does it support VLANs and QoS? A: Yes. The card supports VLAN tagging (802.1Q) and QoS features to prioritize traffic, enabling efficient handling of voice, video, and data in mixed networks.