Description
The Cisco SM-ES3G-16-P is a high-performance, 16-port Gigabit Ethernet switch module designed for seamless integration with Cisco ISR G2 router platforms. Built to deliver enterprise-class switching capabilities, this module features Power over Ethernet (PoE) support, allowing it to power IP phones, wireless access points, and other PoE-enabled devices directly through the network cable. With its compact service module form factor, it fits neatly into compatible Cisco routers, enabling space-saving deployments in branch offices and remote sites. The unit is designed for durability and long-term use, making it a reliable choice for expanding network infrastructure.
Technically, the SM-ES3G-16-P offers 16 10/100/1000 Mbps Ethernet ports, each capable of delivering up to 15.4W of PoE per port, with a total PoE power budget dependent on the host router’s power supply. It supports Layer 2 switching features such as VLANs, spanning tree protocols, and MAC address learning, as well as advanced Layer 3 routing capabilities when licensed. The module includes support for Cisco IOS software, allowing for robust network management and security configurations. When purchasing used, buyers should verify the condition of the module’s ports and ensure compatibility with their existing Cisco router model and IOS version.

