Chapter 1 Cisco 7500 Series Product Overview
Terms and Acronyms
Terms and Acronyms
Following is a list of acronyms, initializations, and terms that identify the Cisco 7500 series system components and features:
•AIP—Asynchronous Transfer Mode (ATM) Interface Processor.
•Backplane—Single or dual system bus to which Cisco interface processors and system processors attach within a Cisco 7500 series router.
•Card cage—Assembly in which the backplane is mounted.
•CIP2—Channel Interface Processor.
•CT3IP—Channelized T3 Interface Processor.
•CxBus—Cisco Extended Bus, the 533-megabit-per-second (Mbps) data bus in the Cisco 7000 series routers.
•CyBus—Cisco Extended Bus, the 1.067-gigabit-per-second (Gbps) data bus in the Cisco 7500 series routers; the Cisco 7505 has one CyBus; the Cisco 7507, Cisco 7507-MX, Cisco 7513, and the Cisco 7513-MX have two CyBuses (called the dual CyBus) for an aggregate bandwidth of 2.134 Gbps. The Cisco 7576 has two dual CyBuses on a single split backplane creating two independent routers. Each Cisco 7576 independent router has an aggregate bandwidth of 2.134 Gbps. (Interface processors designed for the CxBus work with the CyBus.)
•dBus—Diagnostic bus for Route Switch Processor diagnostic and control access, system discovery and control, microcode download, and fault diagnosis for all processors connected to the CyBus.
•DIMM—Dual in-line memory module.
•DRAM—Dynamic random-access memory.
•EIP—Ethernet Interface Processor.
•FEIP—Fast Ethernet Interface Processor.
•FIP—FDDI Interface Processor.
•FSIP—Fast Serial Interface Processor.
•FRU—Field-replaceable unit, defined as any spare part that requires replacement by a Cisco-certified service provider.
•Gbps—Gigabits per second.
•HSA—High System Availability.
•HIP— HSSI Interface Processor.
•Interface processor—Printed circuit card attached to a metal carrier that provides the electrical interfaces used by the Cisco 7500 series routers.
•Mbps—Megabits per second.
•MIP—MultiChannel Interface Processor.
•NVRAM—Nonvolatile random-access memory.
•POSIP—Packet over OC-3 Interface Processor.
•Processor modules—All interface processors and main system processors used in the Cisco 7500 series routers.
•RSP—Route Switch Processor; the main system processor. In this publication, the term RSP includes all RSP models (differences between RSP models are clearly noted).
•RSP2—Specific main system RSP for the Cisco 7505.
Cisco 7500 Series Installation and Configuration Guide
