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Cisco 860 Series, Cisco 880 Series, and Cisco 890 Series Integrated Services Routers Hardware Installation Guide
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Chapter 1 Product Overview
Hardware Features
3G Cellular Data WAN Connectivity
The 3G (Evolution Data Only [EVDO], Universal Mobile Telecommunications Systems [UMTS])
cellular interface is intended for use as a backup data link, but it can also be used as a primary WAN data
link. The 3G technology is third-generation wide-area cellular technology that is used in voice telephony
and broadband wireless data in a mobile environment.
Some Cisco 880G models come with a 34-mm express card slot ready for use with a commercial 3G card
radio. The 3G express card slot is located on the front panel. For a list of supported 3G cards, see the
Cisco 880 Series Integrated Services Routers Data Sheet.
Other Cisco 880G models come with embedded WAN modems for use over GSM or CDMA networks.
These routers have antenna connectors on the back panel. GSM routers have two SIM card slots. For
information on configuring Cisco 880 series ISRs for 3G, see Configuring Cisco EHWIC and 880G for
3G (EV-DO Rev A) and Configuring Cisco EHWIC and 880G for 3.7G (HSPA+)/3.5G (HSPA).