This configuration note contains instructions for installing and configuring the Fast Serial Interface
Processor (FSIP) inCisco 7000 series or Cisco 7500 series routers. Included are basic configuration
steps and examples.
Note When the Cisco 7000 router was introduced in January 1993, the FSIP was planned, but not
yet developed. The Serial Interface Processor (SIP, SX-SIP, or PRE-FSIP) provided an interim
solution until the FSIP was released in September 1993 with Software Release 9.17(5). The FSIP is
now the default serial interface processor for Cisco 7000 series routers. The SIP can no longer be
ordered, and no new microcode or feature enhancements for it will be released. An FSIP upgrade
program is currently in progress to replace all SIPs in the field with new FSIPs. If you currently have
SIPs running in your Cisco 7000, we encourage you to replace them as soon as possible; the upgrade
is free of charge. Contact a service representative for information about the upgrade.
DOC-781147=
78-1147-06
Corporate Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
If you are replacing SIPs with new FSIPs, refer to the instructions in the document Replacing SIPs
with FSIPs in the Cisco 7000 (Document Number 78-1191-xx) before proceeding.
If you are installing a new FSIP in an installed Cisco 7000, ensure that your system meets the
required minimum configuration for FSIP operation before proceeding: Maintenance Release
9.17(5) and SP Microcode Version 1.4. (For a description of prerequisites, refer to the section
“Software Requirements” on page 6.)
1
If You Need More Information
The following sections are included in this configuration note:
• FSIP Port Adapters, Interface Cables, and Connections, page 20
• Using LEDs to Check FSIP Status, page 34
• Configuring the FSIP, page 37
• Cisco Information Online, page 47
If You Need More Information
The Cisco IOS software running your router contains extensive features and functionality. The
effectiveuseofmany interface processor featuresis easier if you have more information at hand. For
additional information on configuring the Cisco 7000 series and Cisco 7500 series routers and
interface processors, the following documentation resources are available:
• Cisco documentation and additional literature are available in a CD-ROM package, which ships
with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is
updated monthly. Therefore, it might be more up to date than printed documentation. To order
additional copies of the Documentation CD-ROM,contact your local sales representative or call
customer service. The CD-ROM package is available as a single package or as an annual
subscription. You can also access Cisco documentation on the World Wide Web at
http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
If you are reading Cisco product documentation on the World Wide Web, you can submit
comments electronically.ClickFeedbackin the toolbar, select Documentation,and click Enterthefeedback form. After you complete theform, click Submit to sendit to Cisco. Weappreciate
your comments.
• Refer to the following modular configuration and modular command reference publications, as
— Network Protocols Configuration Guide, Parts 1, 2, and 3
— Network Protocols Command Reference, Parts 1, 2, and 3
— Bridging and IBM Networking Configuration Guide
— Bridging and IBM Networking Command Reference
— Configuration Builder Getting Started Guide
2 Fast Serial Interface Processor (FSIP) Installation and Configuration
What is the FSIP?
— Troubleshooting Internetworking Systems
— Debug Command Reference
— System Error Messages
— Cisco IOS Software Command Summary
— Cisco Management Information Base (MIB) User Quick Reference
• For hardware installation and maintenance information on the Cisco 7000 series and Cisco 7500
series routers, refer to the hardware installation and configuration documentation that shipped
with your router.
• To obtain general information about documentation, refer to one of the following:
— The Documentation CD-ROM.
— The section “Cisco Information Online” on page 47.
— Customer Service at 800 553-6387 or 408 526-7208. Customer Service hours are 5:00 a.m.
to 6:00 p.m. Pacific time, Monday through Friday (excluding company holidays). You can
also send e-mail to cs-rep@cisco.com.
— The Cisco Information Packet that shipped with your router.
What is the FSIP?
The FSIP (see Figure 1) provides four or eight channel-independent, synchronous serial ports that
support full-duplex operation at T1 (1.544 megabits per second [Mbps]) and E1 (2.048 Mbps)
speeds. The FSIP ships as Product Numbers CX-FSIP4(=) and CX-FSIP8(=).
Figure 1Fast Serial Interface Processor (FSIP)
Port adapters
The ports are divided into two 4-port modules, each of which is controlled by a dedicated Motorola
MC68040 processor and contains 128 kilobytes (KB) of static random-access memory (SRAM).
Each module can support up to four T1 or three E1 interfaces, and an aggregate bandwidth of up to
6.132 Mbps at full-duplex operation.
Enabled
Module 1, ports 0-3
RxC
RxD
TxC
CONN
Module 2, ports 4-7
Translation of DCE LED
states for DCE ports:
RxC
RxD
TxC
CONN
=
TxC
=
TxD
=
RxC
=
CONN
U81, PLCC socket
with microcode ROM
H2004
The FSIP4 has one module for ports 0–3, and the FSIP8 has two modules, one for ports 0–3 and the
other for ports 4–7. To provide a high density of ports, the FSIP uses special port adapters and
adapter cables. A port adapter is a daughter board that provides the physical interface for two FSIP
serial ports. Each FSIP comprises an FSIP board with two or four port adapters. (One module is
equivalent to two port adapters.)
Fast Serial Interface Processor (FSIP) Installation and Configuration 3
FSIP Interface Types
Additional port adapters are available as spares so that you can replace one that fails; however,you
cannot upgrade a 4-port FSIP to an 8-port FSIP by adding port adapters. (The 4-port FSIP is not
constructed to support additional ports after it leaves the factory; it contains the circuitry to control
only one 4-port module.)
An adapter cable provides the network connection for each port and determines the electrical
interface type and mode of that interface. (For more information, refer to the section “FSIP Port
Adapters, Interface Cables, and Connections” on page 20.)
Each serial port on the FSIP4 or FSIP8 can transmit and receive data at the rate of 6.132 Mbps;
however, if one or more ports consumes the full 6.132 Mbps bandwidth, then we strongly
recommend that the remaining ports be administratively shut down.
For example, you can configure four T1 interfaces on a module (one T1 on each port) such that they
do not exceed 6.132 Mbps, or you can configure one port to operate at up to 6.132 Mbps, and leave
the remaining three ports shut down. Note that some environments will support four E1 interfaces
per module without any problems; however, the type of electrical interface, the amount of traffic
processed, and the types of external data service units (DSUs) connected to the ports affect actual
rates.
FSIP Interface Types
Each port supports any of the available interface types: Electronics Industries
Association/Telecommunications Industries Association (EIA/TIA)-232, EIA/TIA-449,
E1-G.703/G.704, V.35, X.21, and EIA-530.
Note Prior to the acceptance of the EIA/TIA standards by the ANSI committee, they were referred
to as recommended standards called RS-232 and RS-449.
All interface types except EIA-530 can be individually configured for operation with either external
(data terminal equipment [DTE] mode) or internal (data communications equipment [DCE] mode)
timing signals; EIA-530 operates with external timing only.
In addition, all FSIP interface types support nonreturn to zero (NRZ) and nonreturn to zero inverted
(NRZI) format, and both 16-bit and 32-bit cyclic redundancy checks (CRCs). The default
configuration is for NRZ format and 16-bit CRC. Youcan change the default settings with software
commands. (See the section “Configuring the FSIP” on page 37.)
There is no default mode or clock rate set on the FSIP ports, although an internal clock signal is
present on all ports for DCE support. The internal clock also allows you to perform local loopback
tests without having to terminate the port or connect a cable. (All interface types except X.21 DTE
support loopback.)
To use the port as a DCE interface, you must set the clock rate and connect a DCE adapter cable. To
use the port as a DTE interface, you need only connect a DTE adapter cable to the port. Because the
serial adapter cables determine the mode and interface type, the FSIP port becomes a DTE when a
DTE cable is connected to it.
If a DTE cable is connected to a port with a clock rate set (using the clockrate command), the DTE
ignores the clock rate and uses the external clock signal that is sent from the remote DCE. (For a
brief description of the clockrate command, refer to the section “Configuring Timing (Clock)
Signals” on page 39.)
4 Fast Serial Interface Processor (FSIP) Installation and Configuration
Each E1-G.703/G.704 interface is a 2.048-megabit per second (Mbps), E1 telecommunications
interface; all the other available FSIP interfaces are synchronous serial data communications
interfaces.G.703 is an International TelecommunicationUnion TelecommunicationStandardization
Sector(ITU-T)electricalandmechanical specification for connections between telecommunications
interfaces and data communications equipment (DTE).
Note The ITU-T carries out the functions of the former Consultative Committee for International
Telegraph and Telephone (CCITT).
Typically,G.703provides a means of connecting standard serial interfaces such as V.35 to telephone
linesor Postal TelephoneandTelegraph (PTT) networks. The E1-G.703/G.704 portadapter supports
point-to-point connections to Cisco 7000 series and Cisco 7500 series routers from 2.048-Mbps, E1
leased-line services, and eliminates the need for a separate, external data termination unit that is
typically used to convert standard serial interfaces, such as V.35, to E1-G.703/G.704.
Synchronous Serial Distance Limitations
Serial signals can travel a limited distance at any given bit rate; generally, the slower the baud rate,
the greater the distance. All serial signals are subject to distance limits beyond which a signal
degrades significantly or is completely lost. Table 1 lists the recommended maximum speeds and
distances for each FSIP serial interface type.
EIA/TIA-449, X.21, V.35, EIA-530
Maximum Distances
Balanced drivers allow EIA/TIA-449 signals to travel greater distances than EIA/TIA-232. The
recommended distance limits for EIA/TIA-449 shown in Table 1 are also valid for V.35, X.21, and
EIA-530. However, you can get good results at distances and rates far greater than these. While
EIA/TIA-449 and EIA-530 support 2-Mbps rates, and V.35 supports 4-Mbps rates without any
problems, we do not recommend exceeding published specifications for transmission speed versus
distance; do so at your own risk.
Fast Serial Interface Processor (FSIP) Installation and Configuration 5
FSIP Installation Prerequisites
E1-G.703/G.704 Distance Limitations
Unbalanced G.703 interfaces allow for a longer maximum cable length than those specified for
balancedcircuits. Table 2 lists the maximumcablelengths for each FSIP E1-G.703/G.704 cabletype
by the connector used at the network (non-FSIP) end.
Table 2E1-G.703/G.704 Maximum Cable Lengths
Connection Type BNCTwinax
Balanced–300 m
Unbalanced600 m–
FSIP Installation Prerequisites
Before you install the FSIP, ensure that your existing system components meet the compatibility
requirements described in this section. You should also review the safety and ESD-prevention
guidelines for avoiding bodily injury or equipment damage, and the list of parts and tools you will
need to perform the installation.
Software Requirements
The FSIP is compatible with any Cisco 7000 series router that is operating with the following
software and microcode:
• Software Release 9.17(5) or later
• SP Microcode Version 1.4 or later on ROM
• The system is configured to load SP Microcode Version 1.4 from ROM or a later version of SP
microcode from ROM or a file stored in Flash memory.
Caution SP Microcode Version 1.4 must reside in ROM; it cannot be loaded from Flash memory.
During the boot process, the system accesses the SP (or SSP) microcode. If the SP microcode ROM
contains a version earlier than 1.4 and the router contains an FSIP, the system might fail to boot
properly.
Note The FSIP is compatible with any of the currently shipping Cisco 7500 series routers.
Various show commands allow you to display and verify system status and configuration
information. The show version command displays the current hardware configuration and the
currently loaded and running version of system software. The show controllers cxbus command
lists all interfaces and includes the currently loaded and running microcode version for each. You
can check the version of the default ROM image either by removing the board and checking the
ROM labels or by configuring the system to load the microcode from ROM, restarting the system,
and using these same commands to check the running version. For details of these commands, refer
to the section “Using Show Commands to Check the Configuration” on page 46.
6 Fast Serial Interface Processor (FSIP) Installation and Configuration
Startup Error Message
When the system starts up, it looks for boot instructions in the system configuration file and
hardware configuration register. These instructions cause the system to boot from one of three
possible sources: the default ROM software, an image stored in Flash memory, or a remote server.
Because the system must be able to retrieve and interpret these instructions before it can execute
them, it always performs a partial boot from the default ROMs first and, after retrieving the
instructions, it executes them and reboots if necessary.
In Cisco 7000 series routers, this partial boot is usually transparent to the user; however, it may
generate a harmless error message if the system ROMs contain a software version earlier than
Maintenance Release 9.17(5).
In the Cisco 7000 series, Maintenance Release 9.17(5) supports the FSIP, but earlier releases will
not recognize it. If the software ROMs in your system contain Maintenance Release 9.17(4) or
earlier, the initial, partial boot from that ROM image can cause the following message to be
displayed:
%UCODE-3-LDFAIL: Unable to download ucode FSIPn-n in slot 0, installed ucode loaded
must be a SIP serial interface
Booting gs7-k...
This message, which is displayed at each subsequent system startup (unless you remove the FSIP or
replace the system software ROMs with Maintenance Release 9.17[5] or later ROMs), does not
indicate a problem and should be ignored.
FSIP Installation Prerequisites
List of Parts and Tools
You need the following tools and parts to install or upgrade an FSIP. If you need additional
equipment, contact your service representative for ordering information.
• Number 2 Phillips screwdriver
• 3/16-inch flat-blade screwdriver
• Serial interface cable to connect the FSIP with the network
• ESD cord and wrist strap
Safety Guidelines
This section lists safety guidelines to follow when working with any equipment that connects to
electrical power or telephone wiring.
Safety Warnings
Safety warnings appear throughout this publication in procedures that, if performed incorrectly,
might harm you. A warning symbol precedes each warning statement.
Warning Means danger. You are in a situation that could cause bodily injury. Before you work on
any equipment, be aware of the hazards involved with electrical circuitry and be familiar with
standard practices for preventing accidents. To see translations of the warnings that appear in this
publication, refer to theRegulatoryComplianceand Safety Information document that accompanied
this device.
Fast Serial Interface Processor (FSIP) Installation and Configuration 7
FSIP Installation Prerequisites
Waarschuwing Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die
lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust
te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van
standaard maatregelen om ongelukken te voorkomen. Voor vertalingen van de waarschuwingen die
in deze publicatie verschijnen, kunt u het document Regulatory Compliance and Safety Information
(Informatie over naleving van veiligheids- en andere voorschriften) raadplegen dat bij dit toestel is
ingesloten.
Varoitus Tämä varoitusmerkkimerkitseevaaraa.Olettilanteessa,jokavoijohtaaruumiinvammaan.
Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä
vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista. Tässä julkaisussa esiintyvien
varoitusten käännökset löydät laitteen mukana olevasta Regulatory Compliance and SafetyInformation -kirjasesta (määräysten noudattaminen ja tietoa turvallisuudesta).
Attention Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation
pouvant causer des blessures ou des dommages corporels. Avant de travailler sur un équipement,
soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les
procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des
traductions d’avertissements figurant dans cette publication, consultez le document RegulatoryCompliance and Safety Information (Conformité aux règlements et consignes de sécurité) qui
accompagne cet appareil.
Warnung Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer
Körperverletzungführen könnte. BevorSiemit der Arbeit an irgendeinem Gerät beginnen,seien Sie
sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur
Vermeidung von Unfällen bewußt. Übersetzungen der in dieser Veröffentlichung enthaltenen
Warnhinweise finden Sie im Dokument Regulatory Compliance and Safety Information
(Informationen zu behördlichen Vorschriften und Sicherheit), das zusammen mit diesem Gerät
geliefert wurde.
Avvertenza Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare
infortuni alle persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli
relativiaicircuitielettrici ed essere al corrente dellepratiche standard per la prevenzione di incidenti.
La traduzione delle avvertenze riportate in questa pubblicazione si trova nel documento RegulatoryCompliance and Safety Information (Conformità alle norme e informazioni sulla sicurezza) che
accompagna questo dispositivo.
Advarsel Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til
personskade. Før du utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som
elektriskekretser innebærer,samt gjøre deg kjent medvanligpraksis når det gjelder å unngå ulykker.
Hvis du vil se oversettelser av de advarslene som finnes i denne publikasjonen, kan du se i
dokumentet Regulatory Compliance and Safety Information (Overholdelse av forskrifter og
sikkerhetsinformasjon) som ble levert med denne enheten.
Aviso Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos
físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos
relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir
possíveis acidentes. Para ver as traduções dos avisos que constam desta publicação, consulte o
documento Regulatory Compliance and Safety Information (Informação de Segurança e
Disposições Reguladoras) que acompanha este dispositivo.
¡Advertencia! Este símbolo de aviso significa peligro. Existe riesgo para su integridad física.
Antes de manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y
familiarizarse con los procedimientos estándar de prevención de accidentes. Para ver una traducción
de las advertencias que aparecen en esta publicación, consultar el documento titulado RegulatoryCompliance and Safety Information (Información sobre seguridad y conformidad con las
disposiciones reglamentarias) que se acompaña con este dispositivo.
8 Fast Serial Interface Processor (FSIP) Installation and Configuration
Electrical Equipment
FSIP Installation Prerequisites
Varning! Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till
personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med
elkretsar och känna till vanligt förfarande för att förebygga skador. Se förklaringar av de varningar
som förkommer i denna publikation i dokumentet Regulatory Compliance and Safety Information
(Efterrättelse av föreskrifter och säkerhetsinformation), vilket medföljer denna anordning.
Follow these basic guidelines when working with any electrical equipment:
• Before beginning any procedures requiring access to the chassis interior, locate the emergency
power-off switch for the room in which you are working.
• Disconnect all power and external cables before moving a chassis.
• Do not work alone if potentially hazardous conditions exist.
• Never assume that power is disconnected from a circuit; always check.
• Do not perform any action that creates a potential hazard to people or makes the equipment
unsafe.
• Carefully examine your work area for possible hazards such as moist floors, ungrounded power
extension cables, and missing safety grounds.
Telephone Wiring
Use the following guidelines when working with any equipment that is connected to telephone
wiring or to other network cabling:
• Never install telephone wiring during a lightning storm.
• Never install telephone jacks in wet locations unless the jack is specifically designed for wet
locations.
• Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
• Use caution when installing or modifying telephone lines.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are
improperly handled, results incomplete or intermittentfailures. Electromagnetic interference (EMI)
shielding, connectors, and a handleare integral components of the carrier.Althoughthemetalcarrier
helps to protect the board from ESD, use a preventive antistatic strapwheneverhandling an interface
processor. Handle the carriers by the handles and the carrier edges only; never touch the boards or
connector pins.
Following are guidelines for preventing ESD damage:
• Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact;
connect the equipment end of the strap to a captive installation screw on an installed power
supply.
• When installing an interface processor, use the ejector levers to properly seat the bus connectors
in the backplane, then tighten both captive installation screws. These screws prevent accidental
removal, provide proper grounding for the system, and help ensure that the bus connectors are
seated in the backplane.
Fast Serial Interface Processor (FSIP) Installation and Configuration 9
FSIP Installation Prerequisites
• When removing an interface processor, use the handle to pull the interface processor out slowly
while keeping your other hand underneath the carrier to guide it straight out of the slot.
• Handle carriers by the handles and carrier edges only; avoid touching the board or connectors.
• Place a removedinterface processor board-side-up on an antistatic surface or in a static shielding
bag. If you plan to return the component to the factory, immediately place it in a static shielding
bag.
• Avoid contact between the interface processor and clothing. The wrist strap only protects the
board from ESD voltages on the body; ESD voltages on clothing can still cause damage.
• Never attempt to remove an interface processor printed circuit board from the metal interface
processor carrier.
Caution Forsafety,periodicallychecktheresistance valueof the antistatic strap. Themeasurement
should be between 1 and 10 megohms.
Interface Processor Slot Locations
The FSIP is installed in the interface processor slots in the Cisco 7000 series and Cisco 7500 series
routers. The interface processor slots in the Cisco 7000 series and Cisco 7500 series routers are as
follows:
• Cisco 7000—slots 0 through 4 (See Figure 2.)
• Cisco 7010—slots 0 through 2 (See Figure 3.)
• Cisco 7505—slots 0 through 3 (See Figure 4.)
• Cisco 7507—slots 0 and 1, and slots 4 through 6 (See Figure 5.)
• Cisco 7513—slots 0 through 5, and slots 8 through 12 (See Figure 6.)
Note The interface processor slots are oriented horizontally in the Cisco 7010 and Cisco 7505, and
vertically in the Cisco 7000, Cisco 7507, and Cisco 7513.
10 Fast Serial Interface Processor (FSIP) Installation and Configuration
Figure 2Cisco 7000 Interface Processor Slots
Captive
installation screw
Upper
power supply
DC FAIL
AC POWER
ENABLE
FSIP Installation Prerequisites
NORMAL
I
O
Captive
installation screw
DC FAIL
AC POWER
Lower
power supply
I
O
Interface processor slots 0
Figure 3Cisco 7010 Interface Processor Slots
EJECT
SLOT 1
SLOT 0
ENABLE
2
1
34 RSP
CPU HALT
RESET
AUX.
CONSOLE
7000
slot 5
ROUTE SWITCH PROCESSOR
H5288
RSP
7000CI
slot 6
Power switch
Chassis ground
screw
NORMAL
ENABLE
EJECT
Power receptacle
Fast Serial Interface Processor (FSIP) Installation and Configuration 11
12 Fast Serial Interface Processor (FSIP) Installation and Configuration
Figure 6Cisco 7513 Interface Processor Slots
Blower module
FSIP Installation Prerequisites
Cable-management
bracket
Card cage and
NORMAL
SLOT 0
SLAVE
SLAVE/MASTER
processor modules
AUX.
CONSOLE
Interface processor slots
0
2
1
4
3
589101112
Guidelines for Interface Processor Removal and Installation
This section describes the mechanical functions of system components and emphasizes the
importance of following correct procedures to avoidunnecessary board failures. Specific procedures
follow these general background and safety guidelines in the section “Interface Processor
Replacement Procedures” on page 15.
EJECT
SLOT 1
MASTER
CPU HALT
RESET
ROUTE SWITCH PROCESSOR 2
ENABLE
ENABLE
H10000
You can remove and replace interface processors while the system is operating; you do not need to
notify the software or reset the system power. This functionality enables you to add, remove, or
replace interface processors with the system online, which provides a method that is seamless to end
users on the network, maintains all routing information, and ensures session preservation.
After an interface processor is reinstalled, the system brings on line only interfaces that match the
current configuration and were previously configured as up; all others require that you configure
them with the configure command.
Caution The system can indicate a hardware failure if you do not follow proper procedures.
Remove or insert only one interface processor at a time. Allow at least 15 seconds for the system to
complete the preceding tasks before removing or inserting another interface processor. Disrupting
the sequence before the system completes its verification can cause the system to interpret hardware
failures.
Fast Serial Interface Processor (FSIP) Installation and Configuration 13
FSIP Installation Prerequisites
Note We recommend that you install interface processors starting with the slots closest to the RSPs
and work out concentrically from there. This will help to ensure that rejection of electromagnetic
interference (EMI) is maintained.
All interface processors have ejector levers that allowyou to firmly seat an interface processor in the
interface processor slot (see Figure 8). The function of the ejector leversis to align and seat the card
connectors in the backplane. Failure to use the ejector levers and insert the interface processor
properly can disrupt the order in which the pins make contact with the backplane.
Follow the installation and removal instructions carefully, and review the following examples of
incorrect insertion practices and results:
• Using the handle to force the interface processor all the way into the slot can pop the ejector
levers out of their springs. If you then try to use the ejector levers to seat the interface processor,
the first layer of pins (which are already mated to the backplane) can disconnect and then remate
with the backplane, which the system interprets as a board failure.
• Using the handle to force or slam the interface processor all the way into the slot can also damage
the pins on the board connectors if they are not aligned properly with the backplane.
• When using the handle (rather than the ejector levers) to seat the interface processor in the
backplane, you might need to pull the interface processor back out and push it in again to align
it properly.
Even if the connector pins are not damaged, the pins mating with and disconnecting from the
backplane will cause the system to interpret a board failure. Using the ejector levers ensures that
the board connector mates with the backplane in one continuous movement.
• Using the handle to insert or remove an interface processor, or failing to push the ejector levers
to the full parallel position, can leavesome(not all) of the connector pins mated to the backplane,
a state that will hang the system. Using the ejector levers and making sure that they are pushed
fully into position ensuresthat all three layers of pins aremated with (or free from) the backplane.
It is also important to use the ejector levers when removing an interface processor to ensure that the
board connector pins disconnect from the backplane in the logical sequence expected by the system.
Any processor module (interface processor or RSP) that is only partially connected to the backplane
can hang the bus. (Detailed steps for correctly installing and removing an interface processor follow
in the section “Interface Processor Replacement Procedures.”)
14 Fast Serial Interface Processor (FSIP) Installation and Configuration
Interface Processor Replacement Procedures
Typically, your interface processors arrive preinstalled in your Cisco 7000 series and Cisco 7500
series routers (with the exception of the Cisco 7513); however, occasionally you might have to
remove and replace interface processors for maintenance.
The following sections describe the procedures for removing or installing an interface processor.
(Refer the section “Guidelines for Interface Processor Removal and Installation” before removing
an interface processor while power to the system is on.)
Caution To avoid erroneous failure messages, remove or insert only one interface processor at a
time. Also, after inserting or removing an interface processor, allow at least 15 seconds before
removing or inserting another interface processor so that the system can reinitialize and note the
current configuration of all interfaces.
Note If you install or remove other interface processors in a Cisco 7000 series or Cisco 7500 series
routerwith a CT3IP installed, you mighthavetorebootthesystem after the removal and replacement
of that interface processor. (In general, and to prevent system problems, we recommend you follow
the procedures described in this section and the guidelines described in the preceding section
“Guidelines for Interface Processor Removal and Installation.”)
Interface Processor Replacement Procedures
Fast Serial Interface Processor (FSIP) Installation and Configuration 15
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