3600 Series Routers
The 3600 Series bears many resemblances to the 2600 Series, but the 3600 Series is
quite a bit more powerful, offering a great deal more scalability and processing
functions.There are three classes in the 3600 Series: the 3620, 3640, and 3660.The
3620 provides two expansion module slots, the 3640 offers four, and the 3660
offers six.Whereas the 2600 supports the use of WICs, the 3600 Series supports the
use of carrier cards that provide service for WAN, LAN, and voice interfaces; these
cards are interchangeable with the 2600 and 1750 Series routers. LAN support for
the 3600 supports 10 and 100 Mbps Ethernet, as well as token ring.