Cisco WS-X4748-UPOE+E 48 Port Switch
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WS-X4748-UPOE+E Cisco Catalyst 48 Ports Ethernet Switch Refurbished

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Part Number#: WS-X4748-UPOE+E
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Short Description:
WS-X4748-UPOE+E Catalyst 4500E Series Universal Line Card Switch 48 Power Over Ethernet (PoE) Ethernet Ports Service Module | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Product Overview of the Cisco Line Card Switch

The Cisco WS-X4748-UPOE+E is a high-performance line card designed for the Catalyst 4500E Series Switches. It offers 48 Power Over Ethernet (PoE) Ethernet ports, providing power and data connectivity to various network devices. As a part of the Catalyst 4500E Series, this line card enhances network efficiency and scalability.

Understanding Line Cards and Their Role

Line cards are key components in modular switches like the Catalyst 4500E Series, expanding their functionality by adding ports and specific features. The WS-X4748-UPOE+E line card, with its 48 PoE Ethernet ports, enables the switch to power and connect numerous devices across the network.

Features of Cisco WS-X4748-UPOE+E Line Card Switch

48 Power Over Ethernet (PoE) Ethernet Ports

The line card offers 48 ports that support Power Over Ethernet, capable of providing power and data connectivity to devices simultaneously.

Importance of Power Over Ethernet (PoE) in Networking

Power Over Ethernet plays a significant role in networking environments:

Simplicity and Efficiency

PoE enables the transmission of both power and data over a single Ethernet cable, simplifying installations and reducing clutter.

Versatile Applications

PoE technology is widely used in scenarios where powering devices remotely or in locations without power outlets is required, such as in IP cameras, VoIP phones, and wireless access points.

Benefits of Using Cisco WS-X4748-UPOE+E Line Card Switch

Enhanced Connectivity

The line card's 48 PoE Ethernet ports provide ample connectivity for various devices, eliminating the need for separate power sources.

Use Cases for Cisco WS-X4748-UPOE+E Line Card Switch

Enterprise Networks

Ideal for enterprise networks where numerous devices need to be connected and powered efficiently, such as VoIP phones, wireless access points, and surveillance cameras.

Data Centers

Suitable for data centers where a multitude of devices and equipment require connectivity and power through a central switching infrastructure.

Industrial Environments

Useful in industrial settings where rugged and efficient connectivity solutions are needed for powering and connecting devices in harsh environments.

High-Performance for 48 Ports Service Module

The WS-X4748-UPOE+E is a service module for the Cisco Catalyst 4500E Series switch. It provides 48 ports of Gigabit Ethernet, with each port capable of providing up to 60 watts of Power over Ethernet (PoE+), as well as an additional 8 ports of 10 Gigabit Ethernet. This service module is designed to provide high-performance switching and PoE capabilities for enterprise networks.

High-Reliability of Catalyst 4500E Series

The WS-X4748-UPOE+E Cisco Catalyst 4500E Series 48-port service module is designed to provide high reliability to the network. High reliability refers to the ability of the module to maintain network uptime and availability, even in the event of component failures or other disruptions. This is achieved through a combination of hardware and software features.

  • Hardware redundancy: The module includes hardware redundancy features such as hot-swappable power supplies and fans, allowing for the replacement of failed components without disrupting network operations.
  • Software redundancy: The module supports software redundancy features such as Cisco's Flexible NetFlow (FNF) and Virtual Switching System (VSS), allowing for the creation of virtual switch clusters that can continue to operate even if one or more physical switches fail.
  • High-availability: The module is designed to provide high availability to the network, reducing downtime and increasing network availability.
  • Redundant supervisor: The module is equipped with a redundant supervisor engine, ensuring that if one supervisor fails, the other takes over and provides continuity to the network operations.
  • Resilient network architecture: The module has been designed to work with other Cisco products that provide resilience to the network, such as Cisco's Resilient Ethernet Protocol (REP), and FlexLink which can help to detect and recover from link failures quickly.

All these features and functionalities work together to provide high reliability to the network, ensuring that the network can continue to operate effectively even in the event of component failures or other disruptions, providing business continuity, and reducing downtime.

Resiliency and High Availability

The WS-X4748-UPOE+E Cisco Catalyst 4500E Series 48 ports service module provides resiliency and high availability features to ensure that the network remains up and running in case of failure. Some of these features include:

  • Redundant Power Supplies: The service module can be configured with redundant power supplies to ensure that power is always available to the network in case of a power supply failure.
  • Hot Swappable: The service module is hot-swappable, meaning that it can be replaced without shutting down the switch, minimizing downtime.
  • Redundant Supervisor Engines: The 4500E series switch supports redundant supervisor engines, which can take over if the primary supervisor fails, ensuring that the network remains up and running.
  • Link Aggregation Control Protocol (LACP): This protocol allows multiple physical connections to be bundled together to form a single logical connection, providing redundancy and increased bandwidth.
  • Flexible NetFlow (FNF): This feature allows the administrator to monitor the network traffic and identify potential bottlenecks, allowing them to take proactive measures to prevent network downtime.

General Information about this Cisco WS-X4748-UPOE+E

  • Manufacturer: Cisco
  • Model Number or SKU# WS-X4748-UPOE+E
  • Product Name: WS-X4748-UPOE+E Service Module
  • Product Type: Service Module

Technical Information for Service Module

  • Application/Usage: Primarily for Data Networking

Interfaces / Ports

  • Interfaces/Ports: 48 x 10/100/1000Base-T LAN
  • Interfaces/Ports Details: 48 x RJ-45 10/100/1000Base-T UPoE LAN


  • Connectivity Media: Twisted Pair 10/100/1000Base-T
  • Data Transfer Rate: 10 Mbps Ethernet
  • Data Transfer Rate: 100 Mbps Fast Ethernet
  • Data Transfer Rate: 1 Gbps Gigabit Ethernet


  • Compatibility: Designed for Cisco Catalyst 4500E Series Switches
  • Green Compliance: Yes
  • Green Compliance Certificate/Authority: RoHS-5

Environmental Parameters

  • Min Operating Temperature: 32 °F
  • Max Operating Temperature: 104 °F
  • Humidity Range Operating: 10 - 90% (non-condensing)
  • Min Storage Temperature: -40 °F
  • Max Storage Temperature: 167 °F


  • Cisco Catalyst 4500E Series Line Card, 4503-E, 4503-E Data Bundle, 4503-E PoE Bundle, 4506-E, 4506-E PoE GE Bundle, 4507R+E, 4507R-E, 4507R-E Data Bundle, 4507R-E PoE Bundle, 4510R+E, 4510R-E

In summary, the Cisco WS-X4748-UPOE+E Catalyst 4500E Series Universal Line Card Switch, with its 48 Power Over Ethernet Ethernet ports, stands as a robust and efficient solution for expanding connectivity and powering devices within the Catalyst 4500E Series switches. Its ability to power devices over Ethernet cables, providing both power and data connectivity, makes it highly versatile for various applications, including enterprise networks, data centers, and industrial environments. Cisco's commitment to providing scalable and efficient networking solutions positions the WS-X4748-UPOE+E as a vital component for seamless connectivity and power distribution across networks.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Here, you can check more available conditions of your desired product WS-X4748-UPOE+E at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


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What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

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(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
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