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Cisco Integrated Services Router Hardware Installation Guide
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Chapter1 Product Overview
Cisco 810 Series
The 3rd Generation (3G) is a generation of standards for mobile technology that facilitates growth,
increased in bandwidth, and supports more diverse applications.
The Cisco 812 ISR can be powered by an (included) external AC adapter or by a PoE+ capable Ethernet
source using an optional Cisco PoE splitter C810-POE-SPL.
A Wireless Local Area Network (WLAN) implements a flexible data communication system frequently
augmenting rather than replacing a wired LAN within a building or campus. WLANs use radio frequency
to transmit and receive data over the air, minimizing the need for wired connections. Figure1-1 shows
the Cisco 812 ISR.
Figure1-1 Cisco 812 ISR
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