CPU bus
It is connect with various components of the system and transformation of data between components.
Power Supply
It is separate external part of cisco router. Cisco 2600 DC Series Modular Access Platform series to Service Provider of main agent and Data Communications Networks.Chasis option is available in cisco 2600 series. Most DC series version support one NM module,two WIC slots, one AIM slots,two LAN ports , one asynchronous auxillary port and one console port.
The PWR600-AC-RPS(Redundant Power Supply) is also additional spare AC power supply for router
RPS for the 2600 Series routers. This power system deals with LAN and WAN products by MTBF mode. Suppose if power supply in the hub fails, hub and switch restarted and work again with the help of RPS. Local and remote monitoring status are also supported by RPS.