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Cisco 7500 Series Installation and Configuration Guide
OL-5008-03 B0
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.
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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.
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EIP—Ethernet Interface Processor.
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FEIP—Fast Ethernet Interface Processor.
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FIP—FDDI Interface Processor.
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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.
