Cisco WS-X4548-GB-RJ45 Service Module
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WS-X4548-GB-RJ45 Cisco Catalyst 48 Ports Service Module Refurbished

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Part Number#: WS-X4548-GB-RJ45
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Short Description:
WS-X4548-GB-RJ45 Catalyst 4500 Enhanced 48 Ports 10/100/1000 Base-T (RJ-45) Line Card Service Module | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

More Information for Catalyst Module

The WS-X4548-GB-RJ45 Cisco Catalyst 48 Ports Service Module is a high-density Gigabit Ethernet module that provides 48 ports of 10/100/1000 Gigabit Ethernet connectivity. It is designed to be used with the Cisco Catalyst 4500 series switches, which provide a scalable and high-performance network solution for enterprise and service provider environments.

The module is equipped with advanced security features, such as Access Control Lists (ACLs) and Quality of Service (QoS) capabilities, which can be used to control access to the network and prioritize different types of traffic. Additionally, it supports Cisco's EnergyWise technology which helps to reduce energy consumption by monitoring and controlling the power usage of network devices.

One of the key features of this model is its high-density port count, this allows you to connect more devices to the network without taking up additional rack space. This is especially useful in data centers or other environments where space is at a premium.

The module also supports the use of SFP (small form-factor pluggable) transceivers, which allows you to choose the type of fiber or copper connectivity that best suits your needs. This makes it a versatile option for a wide range of network environments.

Compliant Standards

This item is a service module for the Cisco Catalyst 4500 series switches. It has 48 Gigabit Ethernet ports that are compliant with several industry standards. These include:

  • IEEE 802.3: This standard defines the physical layer and data link layer specifications for Ethernet. The WS-X4548-GB-RJ45 supports 10/100/1000 Mbps Ethernet operation, which is compliant with this standard.
  • IEEE 802.3ab: This standard specifies the physical layer and data link layer specifications for Gigabit Ethernet over copper cables using the 1000BASE-T (twisted pair) connector.
  • IEEE 802.3u: This standard specifies the physical layer and data link layer specifications for Fast Ethernet (100 Mbps) operation over copper cables using the 100BASE-TX and 100BASE-T4 connectors.
  • IEEE 802.3z: This standard specifies the physical layer and data link layer specifications for Gigabit Ethernet over optical fiber cables using the 1000BASE-SX, 1000BASE-LX, and 1000BASE-LX10 connectors.
  • IEEE 802.3x: This standard specifies the flow control mechanism for full-duplex operation in Ethernet networks.

By being compliant with these standards, the model service module ensures compatibility with other devices and networks that comply with the same standards. This allows for seamless integration and interoperability in various types of networks. Additionally, the module is designed for the Cisco Catalyst 4500E and 4500X switches and it is able to work with the supervisor engine V-10GE, V-8GE, V-4GE, V-2GE and V-2E.


The WS-X4548-GB-RJ45 is a service module for the Cisco Catalyst 4500 series switches. It provides 48 Gigabit Ethernet ports with RJ-45 connectors in a single module, allowing network administrators to increase the number of ports on their switch. One of the key features of this part is its high-reliability.

Some of the ways in which this product provides high-reliability include:

  • Redundancy: The module supports Link Aggregation Control Protocol (LACP) and Port Aggregation Protocol (PAgP), which allow network administrators to increase network redundancy by aggregating multiple links. This ensures that if one link fails, the other links will take over and maintain network connectivity.
  • High availability: The module is designed to be highly available, with features such as hot-swappable, which allows network administrators to replace the module without disrupting network operations.
  • Error-free performance: The module has built-in error-detection and correction mechanisms, which helps to ensure that data is transmitted error-free and that any errors that do occur are corrected quickly.
  • Quality of Service (QoS) : The module supports advanced QoS features, such as traffic shaping and priority queuing, which allow network administrators to prioritize critical traffic and ensure optimal network performance.
  • Error-free performance: The module has built-in error-detection and correction mechanisms, which helps to ensure that data is transmitted error-free and that any errors that do occur are corrected quickly.

General Information about this Cisco WS-X4548-GB-RJ45

  • Manufacturer: Cisco
  • Part Number or SKU# WS-X4548-GB-RJ45
  • Product Type: Service Module

Technical Information of 48 Ports Module

  • Application/Usage: Data Networking
  • Enclosure Type: Plug-in module

Interfaces/Ports for Service Module

Media & Performance

  • Media Type Supported: Twisted Pair
  • Ethernet Technology: Gigabit Ethernet
  • Network Technology: 10/100/1000Base-T
  • Maximum Data Transfer Rate: 100


  • Flow control, half duplex mode, full duplex mode

Expansion / Connectivity

  • Interfaces: 48 x 1000Base-T RJ-45


  • MTBF: 171,356 Hours

Safety Certifications

  • UL 1950
  • EN 60950
  • CSA-C22.2 no 950
  • IEC 950
  • IEC 60950-1, 2 Ed. EN 60950-1, 2 Ed. UL 60950-1, 2 Ed. CAN/CSA-C22.2 No. 60950-1 2 Ed.

Electromagnetic Emissions Certifications

  • FCC 15J Class A
  • VCCI Class A
  • CE Marking
  • EN 55022 Class A
  • EN 55024 Class A
  • CISPR 22 Class A
  • AS/NZ 3548
  • NEBS Level 3 (GR-1089-CORE, GR-63-CORE)
  • ETSI ETS-300386-2
  • EN 50121-4

Power Description

  • Max Rated Power: 60 W

Environmental Parameters

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

Product Dimensions

  • Width: 14.3 Inch
  • Depth: 10.7 Inch
  • Height: 1.2 Inch


  • Compatibility: Catalyst 4500 Series Switches

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.

Different Types of Switches

Networking switches vary widely depending on the number of devices they can support, network bandwidth/speed, and form factor. Switches for small offices will have anything between 4 and 8 ports and can fit on a desk. For larger office network implementation, switches may have 24 ports, 48 ports, 96 ports, and 128 ports and are rack-mountable between 1U and 4U. Switches come in different types depending on the network speed and tasks they support. These include 40/100 Gbps, 10 Gigabit (up to 10000 Mbps), Gigabit Ethernet (up to 1000 Mbps), Power over Ethernet, and Fast Ethernet (10/100 Mbps).

Unmanaged Switches

The unmanaged switches offer fixed configurations on a plug-and-play basis. It is the most basic switch and there are a few choices in the market. These switches are affordable, but the basic features make them inappropriate for enterprise applications.

Managed Switches

The number of features and level of functionality improves with managed switches, making them ideal for enterprise and business applications. These switches are built with the command-line interface for ease of configuration. Equally, they support SNMP agents that come in handy when troubleshooting network issues.

The security on managed switches is better and will protect different types of traffic. Other features include support for virtual LANs, IP routing, and quality of service settings. Managed switches are more expensive compared to all other types of switches.

Smart Switches

Smart switches refer to switches that possess more features than those unmanaged switches but do not have the full features of managed switches. Smart switches are more cost-effective than managed switches.

Some of the limitations of the smart switches are a lack of telnet access support, Web GUIs, and a lack of many features for VLANs. They are affordable compared to a fully managed switch and are suitable for a smaller computer network.

Modular Switches

Modular switches allow the addition of expansion modules as the network expands. The expansion modules allow for more networked devices but are application-specific. They may include wireless access points, firewalls, or network analysis tools. The flexibility of a modular networking switch comes at a higher cost.

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