This chapter provides an overview of the Cisco 12006 and Cisco 12406 series
routers. It contains physical descriptions of the router hardware and major
components, and functional descriptions of the hardware-related features.
The routers described in this guide are part of the Cisco 12006 and Cisco 12406
series routers and include:
The original Cisco 12006 and Cisco 12406 series routers.
The Cisco 12006 and Cisco 12406 enhanced series routers. The enhanced
series of routers use higher capacity power supplies, a more powerful blower
module, and have a new front door.
Most illustrations are shown without the new front door for clarity.
Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
C H A P T E R