The Cisco3640 router is a multifunction platform that combines
dial access, routing, and LAN-to-LAN services and multiservice integration of voice, video
and data in the same device.
The Cisco 3640
has four network module slots. Each network module slot accepts a variety of network
module interface cards, including LAN and WAN mixed media cards supporting Ethernet, Fast
Ethernet, Token Ring, and a variety of WAN technologies. These cards provide the
foundation of LAN and WAN connectivity on a single, modular, network module. Additional
applications are supported with a series of network module cards offering digital modems,
asynchronous and synchronous serial, ISDN PRI, and ISDN BRI interfaces. In addition to the
6 network module slots the Cisco 3660 has 2 internal Advanced Integration Module (AIM)
slots for applications such as hardware accelerated compression and the chassis
incorporates 1 or optionally 2 integrated 10/100 (Ethernet/Fast Ethernet) ports.
