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by Cisco
Product Line: Cisco Small Business Switches
Product Type: Switch
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Original price $0.00 - Original price $204.00
Original price
$0.00 - $204.00
Current price $0.00
Title: Surplus

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Product Description

The SM-D-ES3-48-P is a double-wide Ethernet module with 48 10/100 Mbps ports supporting both Layer 2 and Layer 3 functionalities, designed for seamless integration with Cisco 3945, Cisco 3925, Cisco 2951, and Cisco 2921 routers. It offers PoE support, Fast and Gigabit Ethernet connections via RJ-45 connectors, SFP support for fiber connectivity, and features trunk support for network segmentation. Configuration is facilitated through the Cisco Command-Line Interface, supporting autonegotiation for speed and duplex settings, and it is equipped with enable LED and port LEDs to display status across six states for efficient network monitoring and troubleshooting.

Key Feature for the SMDES348P

  • Q: What is the port speed of this Ethernet switch?
    A: The port speed is 10/100 Mbps.
  • Q: Does the switch support Power over Ethernet (PoE)?
    A: Yes, PoE support is available.
  • Q: Can you list the supported routers for this device?
    A: Supported routers include Cisco 3945, Cisco 3925, Cisco 2951, and Cisco 2921.
  • Q: Is this device capable of operating in both Layer 2 and Layer 3?
    A: Yes, it operates in both Layer 2 and Layer 3.
  • Q: What type of ports does this device have?
    A: It has Ethernet ports.
  • Q: How many ports does it have, and what is its form factor?
    A: It has 48 ports with a double wide form factor.
  • Q: Does the switch support trunking?
    A: Yes, trunk support is available.
  • Q: What types of Ethernet connections are supported?
    A: It supports Fast Ethernet and Gigabit Ethernet connections, both with RJ-45 connectors.
  • Q: How can the device be configured?
    A: Configuration is supported using the Cisco Command-Line Interface.
  • Q: What are the port operation modes available?
    A: Port operation modes include half duplex, full duplex, 10 Mbps, or 100 Mbps.

Product Review

The Cisco SM-D-ES3-48-P offers a comprehensive feature set for Layer 2 and Layer 3 networking, including support for Power over Ethernet (PoE), which enhances its utility in deploying IP phones and wireless access points. However, its limitation to 10/100 Mbps port speeds might restrict performance in environments where higher data throughput is necessary. Additionally, the lack of a physical console interface could complicate initial setup and troubleshooting for network engineers accustomed to direct device interaction.


The Cisco SM-D-ES3-48-P is a versatile and high-capacity module designed to enhance the networking capabilities of specific Cisco routers. It is a double-wide service module that integrates seamlessly into Cisco 3945, Cisco 3925, Cisco 2951, and Cisco 2921 routers, offering extended functionality for wide-ranging networking needs. This module is particularly engineered to support both Layer 2 and Layer 3 operations, making it a flexible option for various networking tasks. With 48 Ethernet ports that support 10/100 Mbps speed, the Cisco SM-D-ES3-48-P is equipped to handle significant data throughput, ensuring efficient network performance. These ports are capable of operating in either half or full duplex mode and support autonegotiation for speed and duplex settings, enabling easy integration and optimal operation within a network infrastructure. The ports use RJ-45 connectors, facilitating fast Ethernet connections and also supporting Gigabit Ethernet connections for higher data transfer rates. Power over Ethernet (PoE) support is a critical feature of the Cisco SM-D-ES3-48-P, allowing devices such as Cisco IP phones, wireless access points, and workstations to receive power directly through the network cables, simplifying the cabling process and reducing the need for additional power supplies. This feature is particularly beneficial in deployments where power outlets are limited or in difficult-to-reach locations. The module offers robust trunk support, enabling the connection of multiple network segments and facilitating efficient data routing and bandwidth management. Additionally, the inclusion of SFP support expands the module’s networking capabilities, allowing for the use of fiber optic cables and thereby extending the reach and improving the quality of network connections. Configuring the Cisco SM-D-ES3-48-P is straightforward, utilizing the Cisco Command-Line Interface (CLI) for detailed setup options. This method provides advanced control over the module's configuration, allowing network administrators to tailor the network to their specific requirements. The module does not include a physical console interface, emphasizing the use of CLI for configuration and management. Key hardware specifications include: -
  • Port LEDs and an Enable LED, with the port LEDs featuring six states and the Enable LED having three states, offering visual cues about the port and module status.
  • Port numbering from right to left and top to bottom, enabling easy identification and management of connections.
  • Application connections that cater to a wide range of devices, from Cisco IP phones and wireless access points to workstations and other network devices.
The Cisco SM-D-ES3-48-P is designed for businesses that require reliable, high-speed networking solutions. Its compatibility with select Cisco routers, combined with comprehensive Layer 2 and Layer 3 support, PoE capabilities, and extensive configuration options, makes it a valuable addition to any network in need of expansion or enhanced functionality. Whether for connecting endpoint devices, managing data traffic, or extending network services, this module offers a practical solution for complex networking challenges.


Item Number Cisco SM-D-ES3-48-P
Manufacturer Cisco
Total Ports 48
Port Specification Ethernet
Port Data Rate 10/100 Mbps
Module Size Double Wide
Support for Layer 2 Yes
Support for Layer 3 Yes
Power over Ethernet (PoE) Yes
Compatible Routers Cisco 3945, Cisco 3925, Cisco 2951, Cisco 2921
Fast Ethernet Availability Yes, Utilizes RJ-45 Connectors
Gigabit Ethernet Availability Yes, Utilizes RJ-45 Connectors
Aggregation Link Support Yes
Small Form-Factor Pluggable (SFP) Modules Yes
Console Port No
Operational Modes of Ports Half Duplex, Full Duplex, 10 Mbps, or 100 Mbps
Automatic Configuration for Speed and Duplex Yes
Power Indicator Yes
Indicator Lights for Ports Yes
Power Indicator States 3
Port LED States 6
Usage Scenarios Connection to Cisco IP phones, Cisco wireless access points, workstations, and various network peripherals
Support for Configuration Yes
Configuration Procedure Through Cisco's Command-Line Interface
CLI Confirmation Identifier 508
Arrangement of Ports From right to left, top to bottom

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