Interface Processor Overview - Cisco 7500 Series Configuration Manual

Interface Processor Overview

Figure 1-34
Interface Processor Overview
Interface processors for the Cisco 7500 series routers are separate processor modules that are installed
in the routers' interface processor slots and attach to the system backplane.
Note For complete information on each of the interface processors available for the Cisco 7500 series
routers, refer to the companion publication Interface Processor Installation and Configuration
Guide, and to the individual configuration notes that ship with each of the interface processors.
Each interface processor comprises a modular, self-contained interface (printed circuit) board and one
or more network interface connectors in a single 11 x 14-inch unit. You can install and remove interface
processors without opening the chassis (known as online insertion and removal, or OIR) and without
turning off the chassis power.
The microcode on each interface processor contains board-specific software instructions. New features
and enhancements to the system or interfaces are often implemented in microcode upgrades.
Each interface processor (and the Cisco 7500 series router in which it is installed) supports
downloadable microcode, which enables you to download new microcode images remotely and store
them in Flash memory. You can then use software commands to load a specific microcode image from
Flash memory.
Each interface processor has a unique bank of status LEDs, and all have a common LED (called the
enabled LED) on the interface processor's faceplate. The enabled LED lights when the interface
processor has completed its initialization, indicating that as a minimum, the interface processor is
correctly connected to the backplane, that it is receiving power, and that it contains a valid microcode
version. If any of these conditions is not met, or if the initialization fails for other reasons, the enabled
LED does not light. Additional LEDs on each interface processor type indicate the state of the interfaces.
The following interface processors are available for the Cisco 7500 series routers:
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Cisco 7500 Series Installation and Configuration Guide
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Blower Module Assembly (Rear View)
LEDs (3)
Power connector
AIP—Asynchronous Transfer Mode (ATM) Interface Processor, with one TAXI 4B/5B,
SONET/SDH (STS-3 or STM-1), E3, or DS3 interface
CIP2—Channel Interface Processor, with any combination of one or two bus and tag and/or one or
two Enterprise System Connection (ESCON) interfaces
CT3IP—Channelized T3 Interface Processor, with T1 (DS1) and T3 (DS3) interfaces
EIP—Ethernet Interface Processor, with two, four, or six AUI interfaces
FEIP and FEIP2—Fast Ethernet Interface Processors, with up to two 100BaseTX or 100BaseFX or
Media Independent Interface (MII) interfaces
Chapter 1 Cisco 7500 Series Product Overview
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