The Cisco Connected Grid 2G/3G/4G Multimode LTE GRWIC modules greatly expand the capabilities of the routers.
Cisco Connected Grid 2G/3G/4G Multimode LTE GRWIC modules offer more WAN connectivity options by providing access to the cellular second-, third-, and fourth-generation (2G, 3G, and 4G) Long Term Evolution (LTE) networks available from various service providers.
Wireless connectivity can be used as a cheaper alternative to wired connections, and can serve as both a primary or secondary WAN connection. The GRWIC offers backwards compatibility with 2G, 3G, and the 4G LTE cellular technologies.