Cisco Cisco VN 2900 Network Adaptation Interface Installation Guide

This document describes Cisco Gigabit Ethernet high-speed WAN interface cards (HWICs) and how to 
connect a Cisco Gigabit Ethernet HWIC to the network, and contains the following sections:

For an overview of Cisco interface cards used for Cisco access routers see the 

 document.

The Cisco Gigabit Ethernet high-speed WAN interface card (HWIC-1GE-SFP) is a high-speed interface 
card providing copper and optical Gigabit Ethernet connectivity for Cisco modular access routers. 

The Cisco Gigabit Ethernet high-speed WAN interface card provides copper and optical Gigabit Ethernet 
connectivity through a small form-factor pluggable module (SFP), which is inserted into the interface 
card. (See the 

SFPs can be installed or removed without powering down the router and interface card.