Cisco CX-FSIP8, X-FSIP4, UPG-7KF-SPA, UPG-FSIP8, PA-7KF-SPA Installation And Configuration Manual

...

Customer Order Number: Documentation Part Number:

Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

Product Numbers: CX-FSIP4=, CX-FSIP8=, PA-7KF-SPA=, UPG-FSIP4, UPG-FSIP8, UPG-7KF-SPA

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.)

If You Need More Information

The following sections are included in this conﬁguration note:

• If You Need More Information

• What is the FSIP?, page 3

• FSIP Interface Types, page 4

• FSIP Installation Prerequisites, page 6

• Interface Processor Replacement Procedures, page 15

• 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 Enter thefeedback 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

appropriate for your conﬁguration:

— Conﬁguration Fundamentals Conﬁguration Guide — Conﬁguration Fundamentals Command Reference — Security Conﬁguration Guide — Security Command Reference — Wide-Area Networking Conﬁguration Guide — Wide-Area Networking Command Reference

— 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 1 Fast 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.

FSIP Interface Types

Table 1 Transmission Speed Versus Distance

EIA/TIA-232 Maximum Distances

Rate (bps) Feet Meters Feet Meters

2,400 200 60 4,100 1,250 4,800 100 30 2,050 625 9,600 50 15 1,025 312 19,200 25 7.6 513 156 38,400 12 3.7 256 78 56,000 8.6 2.6 102 31 1,544,000 (T1) – – 50 15

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 2 E1-G.703/G.704 Maximum Cable Lengths Connection Type BNC Twinax

Balanced – 300 m Unbalanced 600 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 Safety Information -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 Regulatory Compliance 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 Regulatory Compliance 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 Regulatory Compliance 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 2 Cisco 7000 Interface Processor Slots

Captive installation screw

Upper power supply

DC FAIL AC POWER

ENABLE

FSIP Installation Prerequisites

NORMAL

Captive installation screw

DC FAIL AC POWER

Lower power supply

Interface processor slots 0

Figure 3 Cisco 7010 Interface Processor Slots

EJECT

SLOT 1

SLOT 0

ENABLE

3 4 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

RSP7000CI slot 4

SLOT 1

SLOT 0

CPU HALT

RESET

ENABLE

AUX.

ROUTE SWITCH PROCESSOR

CONSOLE

RSP7000 slot 3 Interface processor slot 2

Interface processor slot 1 Interface processor slot 0

DC OK LED

H5874

AC-input power supply

FSIP Installation Prerequisites

Figure 4 Cisco 7505 Interface Processor Slots

NORMAL

EJECT

SLOT 1 SLOT 0

ENABLE

CPU HALT

ENABLE

Power switch

Chassis grounding receptacles

Power receptacle AC-input power supply

Figure 5 Cisco 7507 Interface Processor Slots

Captive installation screw

Upper power supply

DC FAIL AC POWER

RESET

AUX.

ROUTE SWITCH PROCESSOR

CONSOLE

RSP slot Interface processor slot 3

Interface processor slot 2 Interface processor slot 1

Interface processor slot 0

DC OK LED

H2761

NORMAL

ENABLE

Chassis grounding receptacles

Captive installation screw

Lower power supply

DC FAIL AC POWER

EJECT

SLOT 1

Slot 0

SLOT 0

MASTER

SLAVE

SLAVE/MASTER

CPU HALT

RESET

AUX.

ROUTE SWITCH PROCESSOR 2

CONSOLE

34 5 6

ENABLE

H3888

RSP slots

12 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

Figure 6 Cisco 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

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

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

Interface Processor Replacement Procedures

Removing an Interface Processor

If you are replacing a failed interface processor, remove the existing board ﬁrst, then install the new interface processor in the same slot.

Note In Cisco 7507 or Cisco 7513 systems, on-line insertion and removal of any interface

processor in either CyBus might cause the slave RSP2 to reboot with a bus error or a processor memory parity error. The master RSP will recover from this event and issue a “cBus Complex Restart” message. Cisco 7507 and Cisco 7513 systems that are conﬁgured with an RSP4 as the system slave are not affected and will not experience this problem.

If you have a Cisco 7507 or a Cisco 7513 with an RSP2 conﬁgured as the system slave, we strongly recommend that you use the following procedure to remove and replace an interface processor:

Step 1 Remove the slave RSP2. Step 2 Wait 15 seconds. Step 3 Remove and replace the interface processor using the procedures in this publication. Step 4 Wait 15 seconds. Step 5 Reinsert the slave RSP2.

Figure 7 shows proper handling of an interface processor during installation. Before you remove an interface processor that you will not replace, or replace an interface processor component, we recommend you shut down (disable) the interfaces to prevent anomalies when you reinstall the new or reconﬁgured interface processor. When you shut down an interface, it is designated administratively down in the show command displays.

Figure 7 Handling Interface Processors during Installation (Horizontal Orientation Shown)

H4714

Captive installation screws

16 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

Interface Processor Replacement Procedures

Use the following procedure to remove an interface processor:

Step 1 Disconnect the interface processor’s cables from the interface ports. Step 2 Loosen the captive installation screws at the ends of the interface processor faceplate.

(See Figure 8a.)

Caution Always use the ejector levers to remove or install an interface processor. Failure to do so

can cause erroneous system error messages, indicating a board failure.

Step 3 Place your thumbs on the upper and lowerejector levers and simultaneously push the top

ejector lever up and the bottom ejector lever down (in the opposite direction from that shown in Figure 8c) to release an interface processor from the backplane connector.

Step 4 Grasp the interface processor handle with one hand and place your other hand under the

carrier to guide the interface processor out of the slot. (See Figure 7.) Avoid touching the board or any connector pins.

Step 5 Carefully pull the interface processor straight out of the slot, keeping one hand under the

carrier to guide it. (See Figure 7.) Keep the interface processor parallel to the backplane.

Step 6 Place the removed interface processor on an antistatic mat or foam pad, or place it in an

antistatic bag if you will return it to the factory.

Step 7 If the interface processor slot is to remain empty, install an interface processor ﬁller

(MAS-7000BLANK=) to keep dust out of the chassis and to maintain proper airﬂow through the interface processor compartment.

Installing an Interface Processor

Interface processors slide into any available interface processor slot and connect directly to the backplane. The backplane slots are keyed so that interface processors can be installed only in interface processor slots. Interface processor ﬁllers, which are blank interface processor carriers, occupy empty slots to maintain consistent air ﬂow through the interface processor compartment.

If you install a new interface processor, you have to ﬁrst remove the interface processor ﬁller from the available interface processor slot. Figure 8 shows functional details of inserting an interface processor and using ejector levers. (Figure 7 shows proper handling of an interface processor during installation.)

Note There are no restrictions on slot locations or interfaceprocessor sequence, andyou can install

the interface processor in any available interface processor slot; however, in the Cisco 7507 and Cisco 7513, we recommend that you install interface processors starting with the slots closest to the RSPs and work out concentrically from there. This will help prevent electromagnetic interference (EMI).

Caution 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 this as a hardware failure.

Fast Serial Interface Processor (FSIP) Installation and Configuration 17

Interface Processor Replacement Procedures

Use the following procedure to install an interface processor:

Step 1 Ensure that a console terminal is connected to the RP (or RSP) Console port and that the

console is turned on.

Step 2 Choose an available interface processor slot for the interface processor, and ensure that

the interface processor’s cable is of a sufﬁcient length to connect the interface processor withany external equipment. Werecommendthatyou install interface processors starting with the slots closest to the RSPs and work out concentrically from there. This will help prevent EMI.

Step 3 Interface processors and interface processor ﬁllers are secured with two captive

installation screws. (See Figure 8a.) Use a ﬂat-blade screwdriver to loosen the captive installation screws and remove the interface processor ﬁller (or the existing interface processor) from the slot. If you remove an interface processor,immediately place it in an antistatic bag to prevent damage from electrostatic discharge.

18 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

Interface Processor Replacement Procedures

Figure 8 Location of Ejector Levers and Captive Installation Screws

Interface processor card slot

Ejector lever

Interface processor card carrier guide (black)

Step 4

Captive installation screw

H9846

Hold the interface processor handle with one hand, and place your other hand under the carrier to support the interface processor (see Figure 7); guide the carrier into the slot. Avoid touching the card or any connector pins.

Caution To prevent ESD damage, handle interface processors by the handles and carrier edges

only.

Step 5 Place the back of the interface processor in the slot and align the notch on the bottom of

the carrier with the groove in the slot. (See Figure 8a.)

Step 6 While keeping the interface processor parallel to the backplane, carefully slide the

interface processor into the slot until the back of the faceplate makes contact with the ejector levers, then stop. (See Figure 8b.)

Fast Serial Interface Processor (FSIP) Installation and Configuration 19

FSIP Port Adapters, Interface Cables, and Connections

Caution Always use the ejector levers when installing or removing processor modules. A module

that is partially seated in the backplane will cause the system to hang and subsequently crash.

Step 7 Using the thumb and foreﬁnger of each hand to pinch each ejector lever, simultaneously

push the top ejector lever down and the bottom ejector lever up until both are parallel to the faceplate. (See Figure 8c.)

Step 8 Tighten the captive screws on the top and bottom of the interface processor faceplate to

prevent the interface processor from becoming partially dislodged from the backplane and ensure proper EMI shielding. (These screws must be tightened to meet EMI speciﬁcations.)

Caution To ensure adequate space for additional interface processors, always tighten the captive

installation screws on each newly installed interface processor before you insert any additional interface processors. These screws also prevent accidental removal, and provide proper grounding and EMI shielding for the system.

FSIP Port Adapters, Interface Cables, and Connections

The universal port adapters and adapter cables allow eight interface ports on an FSIP, regardless of the size of the connectors typically used with each electrical interface type. (See Figure 9.)

Figure 9 Universal and E1-G.703/G.704 Serial Port Adapters

Port adapters are ﬁeld-replaceable daughter boards mounted to the FSIP, and each provides two high-density connectors for two FSIP ports.

All FSIP port adapters use an identical 60-pin, D-shell receptacle that supports all interface types: EIA/TIA-232, V.35, EIA/TIA-449, X.21, and EIA-530. An exception to this is the E1-G.703/G.704 port adapter, which uses a 15-pin, D-shell receptacle.

FSIP Interface Cables

Each port requires a serial interface adapter cable that provides the interface between the high-density FSIP port and the standard connectors that are commonly used for each electrical interface type. Rate of data transmission depends on the type of electrical interface: EIA/TIA-232 for speeds of 64 kilobits per second (kbps) and below; X.21, EIA/TIA-449, V.35, or EIA-530 for higher speeds.

Universal

H2400

E1-G.703/G.704

Note The adapter cable determines the electrical interface type and mode of the port to which it is

connected.

20 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

FSIP Port Adapters, Interface Cables, and Connections

The router (FSIP) end of all adapter cables is a 60-pin, D-shell plug that connects to the 60-pin port on the FSIP. The network end of the cable is an industry-standard connector for the type of electrical interface that the cable supports. For most interface types, the adapter cable for DTE mode uses a plug at the network end, and the cable for DCE mode uses a receptacle at the network end. Exceptions are V.35 adapter cables, which are available with either a V.35 plug or a receptacle for eithermode, and the EIA-530 adaptercable, which is available only in DTE mode witha DB-25 plug at the network end.

The mode (DCE or DTE) is labeled on the molded plastic connector shell at the ends of all cables except V.35 (which uses the standard Winchester block-type connector instead of a molded plastic D-shell).

Followingare the availableportadapter and cable options for the mode and network-end connectors for each synchronous serial cable listed by product number:

• PA-7KF-SPA(=)—Universal synchronous serial port adapter

• CAB-232MT(=)—EIA/TIA-232 DTE mode cable with a DB-25 plug

• CAB-232FC(=)—EIA/TIA-232 DCE mode cable with a DB-25 receptacle

• CAB-449MT(=)—EIA/TIA-449 DTE mode cable with a 37-pin D-shell plug

• CAB-449FC(=)—EIA/TIA-449 DCE mode cable with a 37-pin D-shell receptacle

• CAB-V35MT(=)—V.35 DTE mode cable or DCE mode (CAB-V35MC=) with a 34-pin

Winchester-type V.35 plug

• CAB-V35FT(=)—V.35 DTE mode cable or DCE mode (CAB-V35FC=) with a 34-pin

Winchester-type V.35 receptacle

• CAB-X21MT(=)—X.21 DTE mode cable with a DB-15 plug

• CAB-X21FC(=)—X.21 DCE mode with a DB-25 receptacle

• CAB-530MT(=)—EIA-530 DTE mode cable with a DB-25 plug

Following are the available port adapter and cable options for the E1-G.703/G.704 interface:

• PA-7KF-E1/120(=)—Dual-port E1-G.703/G.704, 120 ohm, balanced port adapter

• PA-7KF-E1/75(=)—Dual-port E1-G.703/G.704, 75 ohm, unbalanced port adapter

• CAB-E1-TWINAX(=)—E1 cable, TWINAX, 120 ohm, balanced, 5 meters

• CAB-E1-DB15(=)—E1 cable, DB-15, 120 ohm, balanced, 5 meters

• CAB-E1-BNC(=)—E1 cable, BNC, 75 ohm, unbalanced, 5 meters

All cables and port adapters are available as spare parts (=). Forreplacement instructions, refer to the conﬁguration note that shipped with yourreplacement port

adapter. For cable pinouts, refer to the section “FSIP Port Adapter Interface and Cable Pinouts” on page 23.

Figure 10 shows the synchronous serial port adapter cables for connecting the FSIP port adapters to your network.

Fast Serial Interface Processor (FSIP) Installation and Configuration 21

FSIP Port Adapters, Interface Cables, and Connections

Figure 10 Synchronous Serial Port Adapter Cables

Router (FSIP) connections

EIA/TIA-232 EIA-530

EIA/TIA-449 V.35 X.21

Network connections at the modem or CSU/DSU

H1727

22 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

FSIP Port Adapters, Interface Cables, and Connections

Figure 11, Figure 12, and Figure 13 show the unbalanced and balanced cables used for connecting the E1-G.703/G.704 port adapter and your network. The port-adapter end of each cable has a DB-15 connector.

Figure 11 E1-G.703/G.704 Interface Cable for Unbalanced Connections (with BNC Connectors and

Coaxial Cables)

H2421

Figure 12 E1-G.703/G.704 Interface Cable for Balanced Connections (withDB-15 Connectors on Both

Ends)

Figure 13 E1-G.703/G.704 Interface Cable for Balanced Connections (with Twinax Connectors and

Cables)

Caution

It is a requirement of the statutory approval of the E1-G.703/G.704 interface that the

jackscrews of the connector backshell be securely screwed down while the FSIP is operating.

Metric (M3) thumbscrews are included with each port adapter cable to allow connections to devices that use metric hardware. Because the FSIP uses a special, high-density port that requires special adapter cables for each electrical interface type, we recommend that you obtain serial interface cables from the factory.

FSIP Port Adapter Interface and Cable Pinouts

The FSIP supports EIA/TIA-232, EIA/TIA-449, X.21, V.35, and EIA-530 serial interfaces and the E1-G.703/G.704 interface. All FSIP ports use a universal port adapter,which is a 60-pin receptacle that supports all available interface types. A special synchronous serial adapter cable, which is required for each synchronous port, determines the electrical interface type and mode of the synchronous serial interface. The router (FSIP) end of all of the adapter cables is a 60-pin plug; the connectors at the network end are the standard connectors used for the respective interfaces. An exception to this is the E1-G.703/G.704 port adapter, which uses a 15-pin, D-shell receptacle.

H2476

H2424

Fast Serial Interface Processor (FSIP) Installation and Configuration 23

FSIP Port Adapters, Interface Cables, and Connections

All synchronous serial interface types except EIA-530 are available in DTE or DCE format: DTE with a plug connector at the network end and DCE with a receptacle at the network end. V.35 is available in either mode with either gender at the network end. EIA-530 is available in DTE only.

The tables that follow list the signal pinouts for both the DTE and DCE mode serial port adapter cables for each FSIP interface type:

• Table 3, on page 24, lists the EIA/TIA-232 pinouts

• Table 4, on page 25, lists the EIA/TIA-449 pinouts

• Table 5, on page 26, lists the X.21 pinouts

• Table 6, page 27, lists the V.35 pinouts

• Table 7, on page 28, lists the EIA-530 pinouts

• Table 8, on page 29, lists the E1-G.703/G.704 pinouts

Table 3 EIA/TIA-232 Adapter Cable Signals DTE Cable DCE Cable

FSIP End,

HD 60-Position Plug

Signal Pin Pin Signal Signal Pin Pin Signal

Shield ground 46 1 Shield ground Shield ground 46 1 Shield ground TxD/RxD 41 —> 2 TxD RxD/TxD 36 <— 2 TxD RxD/TxD 36 <— 3 RxD TxD/RxD 41 —> 3 RxD RTS/CTS 42 —> 4 RTS CTS/RTS 35 <— 4 RTS CTS/RTS 35 <— 5 CTS RTS/CTS 42 —> 5 CTS DSR/DTR 34 <— 6 DSR DTR/DSR 43 —> 6 DSR Circuit ground 45 7 Circuit ground Circuit ground 45 7 Circuit ground DCD/LL 33 <— 8 DCD LL/DCD 44 —> 8 DCD TxC/NIL 37 <— 15 TxC TxCE/TxC 39 —> 15 TxC RxC/TxCE 38 <— 17 RxC NIL/RxC 40 —> 17 RxC LL/DCD 44 —> 18 LTST DCD/LL 33 <— 18 LTST DTR/DSR 43 —> 20 DTR DSR/DTR 34 <— 20 DTR TxCE/TxC 39 —> 24 TxCE RxC/TxCE 38 <— 24 TxCE Mode 0

Ground Mode_DCE

1. HD = high density.

50 51 52

Network End, DB-25 Plug

Shorting group

FSIP End, HD 60-Position Plug

Mode 0 Ground

Network End, DB-25 Receptacle

50 51 Shorting group

24 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

FSIP Port Adapters, Interface Cables, and Connections

Table 4 EIA/TIA-449 Adapter Cable Signals DTE Cable DCE Cable

FSIP End,

HD 60-Position Plug

Network End, DB-37 Plug

FSIP End, HD 60-Position Plug

Network End, DB-37 Receptacle

Signal Pin Pin Signal Signal Pin Pin Signal

Shield ground 46 1 Shield

Shield ground 46 1 Shield ground

ground TxD/RxD+ 11 —> 4 SD+ RxD/TxD+ 28 <— 4 SD+ TxD/RxD– 12 —> 22 SD– RxD/TxD– 27 <— 22 SD– TxC/RxC+ 24 <— 5 ST+ TxCE/TxC+ 13 —> 5 ST+ TxC/RxC– 23 <— 23 ST– TxCE/TxC– 14 —> 23 ST– RxD/TxD+ 28 <— 6 RD+ TxD/RxD+ 11 —> 6 RD+ RxD/TxD– 27 <— 24 RD– TxD/RxD– 12 —> 24 RD– RTS/CTS+ 9 —> 7 RS+ CTS/RTS+ 1 <— 7 RS+ RTS/CTS– 10 —> 25 RS– CTS/RTS– 2 <— 25 RS– RxC/TxCE+ 26 <— 8 RT+ TxC/RxC+ 24 —> 8 RT+ RxC/TxCE– 25 <— 26 RT– TxC/RxC– 23 —> 26 RT– CTS/RTS+ 1 <— 9 CS+ RTS/CTS+ 9 —> 9 CS+ CTS/RTS– 2 <— 27 CS– RTS/CTS– 10 —> 27 CS– LL/DCD 44 —> 10 LL NIL/LL 29 —> 10 LL Circuit ground 45 37 SC Circuit ground 30 37 SC DSR/DTR+ 3 <— 11 ON+ DTR/DSR+ 7 —> 11 ON+ DSR/DTR– 4 <— 29 ON– DTR/DSR– 8 —> 29 ON– DTR/DSR+ 7 —> 12 TR+ DSR/DTR+ 3 <— 12 TR+ DTR/DSR– 8 —> 30 TR– DSR/DTR– 4 <— 30 TR– DCD/DCD+ 5 <— 13 RR+ DCD/DCD+ 5 —> 13 RR+ DCD/DCD– 6 <— 31 RR– DCD/DCD– 6 —> 31 RR– TxCE/TxC+ 13 —> 17 TT+ RxC/TxCE+ 26 <— 17 TT+ TxCE/TxC– 14 —> 35 TT– RxC/TxCE– 25 <— 35 TT– Circuit ground 15 19 SG Circuit ground 15 19 SG Circuit ground 16 20 RC Circuit ground 16 20 RC Mode 1

Ground Ground

Mode_DCE5152

1. HD = high density.

49 48

Shorting

group

Shorting

group

Mode 1 Ground

49 48

Shorting group

Fast Serial Interface Processor (FSIP) Installation and Configuration 25

FSIP Port Adapters, Interface Cables, and Connections

Table 5 X.21 Adapter Cable Signals DTE Cable DCE Cable

FSIP End,

HD 60-Position Plug

Signal Pin Pin Signal Signal Pin Pin Signal

Shield ground 46 1 Shield ground Shield ground 46 1 Shield ground TxD/RxD+ 11 —> 2 Transmit+ RxD/TxD+ 28 <— 2 Transmit+ TxD/RxD– 12 —> 9 Transmit– RxD/TxD– 27 <— 9 Transmit– RTS/CTS+ 9 —> 3 Control+ CTS/RTS+ 1 <— 3 Control+ RTS/CTS – 10 —> 10 Control– CTS/RTS – 2 <— 10 Control– RxD/TxD+ 28 <— 4 Receive+ TxD/RxD+ 11 —> 4 Receive+ RxD/TxD– 27 <— 11 Receive– TxD/RxD– 12 —> 11 Receive– CTS/RTS+ 1 <— 5 Indication+ RTS/CTS+ 9 —> 5 Indication+ CTS/RTS – 2 <— 12 Indication– RTS/CTS– 10 —> 12 Indication– RxC/TxCE+ 26 <— 6 Timing+ TxC/RxC+ 24 —> 6 Timing+ RxC/TxCE– 25 <— 13 Timing– TxC/RxC – 23 —> 13 Timing– Circuit ground 15 8 Circuit ground Circuit ground 15 8 Circuit ground Ground

Mode_2 Ground

Mode_DCE

1. HD = high density.

48 47

51 52

Network End, DB-15 Plug

Shorting group

FSIP End, HD 60-Position Plug

Ground Mode_2

Ground Mode_DCE

48 47

51 52

Network End, DB-15 Receptacle

Shorting group

26 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

FSIP Port Adapters, Interface Cables, and Connections

Table 6 V.35 Adapter Cable Signals DTE Cable DCE Cable

FSIP End,

HD 60-Position Plug

Network End, 34-Position Plug

FSIP End, HD 60-Position Plug

Network End, 34-Position Receptacle

Signal Pin Pin Signal Signal Pin Pin Signal

Shield ground 46 A Frame ground Shield ground 46 A Frame ground Circuit ground 45 B Circuit

Circuit ground 45 B Circuit ground

ground RTS/CTS 42 —> C RTS CTS/RTS 35 <— C RTS CTS/RTS 35 <— D CTS RTS/CTS 42 —> D CTS DSR/DTR 34 <— E DSR DTR/DSR 43 —> E DSR DCD/LL 33 <— F RLSD LL/DCD 44 —> F RLSD DTR/DSR 43 —> H DTR DSR/DTR 34 <— H DTR LL/DCD 44 —> K LT DCD/LL 33 <— K LT TxD/RxD+ 18 —> P SD+ RxD/TxD+ 28 <— P SD+ TxD/RxD– 17 —> S SD– RxD/TxD– 27 <— S SD– RxD/TxD+ 28 <— R RD+ TxD/RxD+ 18 —> R RD+ RxD/TxD– 27 <— T RD– TxD/RxD– 17 —> T RD– TxCE/TxC+ 20 —> U SCTE+ RxC/TxCE+ 26 <— U SCTE+ TxCE/TxC– 19 —> W SCTE– RxC/TxCE– 25 <— W SCTE– RxC/TxCE+ 26 <— V SCR+ NIL/RxC+ 22 —> V SCR+ RxC/TxCE– 25 <— X SCR– NIL/RxC– 21 —> X SCR– TxC/RxC+ 24 <— Y SCT+ TxCE/TxC+ 20 —> Y SCT+ TxC/RxC– 23 <— AA SCT– TxCE/TxC– 19 —> AA SCT– Mode 1

Ground Mode 0

Ground Mode_DCE

TxC/NIL RxC/TxCE RxC/TxD Ground

1. HD = high density.

49 48

50 51 52

53 54 55 56

Shorting

group

Shorting

group

Shorting

group

Mode 1 Ground

Mode 0 Ground

TxC/NIL RxC/TxCE RxC/TxD Ground

49 48

50 51

53 54 55 56

Shorting group

Fast Serial Interface Processor (FSIP) Installation and Configuration 27

FSIP Port Adapters, Interface Cables, and Connections

Table 7 EIA-530 DTE Adapter Cable Signals FSIP End, HD

60-Position Plug Signal Pin Pin Signal

Shield ground 46 1 Shield ground TxD/RxD+ 11 —> 2 TxD+ TxD/RxD– 12 —> 14 TxD– RxD/TxD+ 28 <— 3 RxD+ RxD/TxD– 27 <— 16 RxC– RTS/CTS+ 9 —> 4 RTS+ RTS/CTS– 10 —> 19 RTS– CTS/RTS+ 1 <— 5 CTS+ CTS/RTS– 2 <— 13 CTS– DSR/DTR+ 3 <— 6 DSR+ DSR/DTR– 4 <— 22 DSR– DCD/DCD+ 5 <— 8 DCD+ DCD/DCD– 6 <— 10 DCD– TxC/RxC+ 24 <— 15 TxC+ TxC/RxC– 23 <— 12 TxC– RxC/TxCE+ 26 <— 17 RxC+ RxC/TxCE– 25 <— 9 RxC– LL/DCD 44 —> 18 LL Circuit ground 45 7 Circuit ground DTR/DSR+ 7 —> 20 DTR+ DTR/DSR– 8 —> 23 DTR– TxCE/TxC+ 13 —> 24 TxCE+ TxCE/TxC– 14 —> 11 TxCE– Mode_1

Ground Mode_2

Ground Mode_DCE

1. HD = high density.

49 48 47

51 52

Network End, DB-25 Plug

Shorting group

28 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

Table 8 E1-G.703/G.704 Adapter Cable Connector Pinouts FSIP End Network End

DB-15 Pin Signal

9 Tx tip 1 3 Tx tip Tip Tx tip 2 Tx ring 9 11 Tx shield Ring Tx ring 10 Tx shield 2 4 – Shield Tx shield 8 Rx tip 3 1 Rx tip Tip Rx tip 15 Rx ring 11 9 Rx shield Ring Rx ring 7 Rx shield 4 2 – Shield Rx shield

1. Any pins not described in Table 8 are not connected.

2. Tx = transmit. Rx = receive.

FSIP Cable Connections

This section provides information on the synchronous serial interface connectors used on the FSIP synchronous serial cables.

FSIP Port Adapters, Interface Cables, and Connections

NullModem

DB-15

Pin Pin Signal Pin Signal

DB-15 BNC Twinax

Use the information in the following sections for your serial connections:

• EIA/TIA-232 Connections, page 29

• EIA/TIA-449 Connections, page 30

• V.35 Connections, page 30

• X.21 Connections, page 31

• EIA-530 Connections, page 31

• Metric Thumbscrews, page 32

EIA/TIA-232 Connections

EIA/TIA-232 supports unbalanced circuits at signal speeds up to 64 kbps. The router (FSIP) end of all EIA/TIA-232 adapter cables is a high-density 60-pin plug. The opposite (network) end of the adapter cable is a standard 25-pin D-shell connector (known as a DB-25) that is commonly used for EIA/TIA-232 connections. Figure 14 shows the connectors at the network end of the adapter cable.

Figure 14 EIA/TIA-232 Adapter Cable Connectors, Network End

DTE

DCE

Fast Serial Interface Processor (FSIP) Installation and Configuration 29

H1343a

FSIP Port Adapters, Interface Cables, and Connections

EIA/TIA-449 Connections

EIA/TIA-449, which supports balanced (EIA/TIA-422) and unbalanced (EIA/TIA-423) transmissions, is a faster (up to 2 Mbps) version of EIA/TIA-232, which provides more functions and supports transmissions over greater distances. The EIA/TIA-449 standard was intended to replace EIA/TIA-232, but it was not widely adopted. The resistance to convert to EIA/TIA-449 was due primarily to the large installed base of DB-25 hardware and to the larger size of the 37-pin EIA/TIA-449 connectors, which limited the number of connections possible (fewer than is possible with the smaller, 25-pin EIA/TIA-232 connector).

The router (FSIP) end of all EIA/TIA-449 adapter cablesis a high-density60-pin plug. The opposite (network)end of the adapter cableprovidesa standard 37-pin D-shell connector,whichiscommonly used for EIA/TIA-449 connections.

Figure 15 shows the connectors at the network end of the adapter cable.

Figure 15 EIA/TIA-449 Adapter Cable Connectors, Network End

DTE

V.35 Connections

DCE

H1344a

The V.35 interface is recommended for speeds up to 48 kbps (although in practice it is used successfully at up to 4 Mbps).

The router (FSIP) end of all V.35 adapter cables is a high-density 60-pin plug. The opposite (network) end of the adapter cable provides a standard, 34-pin Winchester-type connector commonly used for V.35 connections.

Figure 16 shows the connectors at the network end of the V.35 adapter cable.

Figure 16 V.35 Adapter Cable Connectors, Network End

DTE

DCE

H1616a

Note Also available, but not shown in Figure 16, is a V.35 cable with a plug on the network end for

DCE mode, and a V.35 cable with a receptacle on the network end for DTE mode. You can use these cables for connecting V.35-equipped systems back to back.

30 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

X.21 Connections

FSIP Port Adapters, Interface Cables, and Connections

The X.21 interface uses a 15-pin connection for balanced circuits and is commonly used in the United Kingdom to connect public data networks. The X.21 interface relocates some of the logic functions to the DTE and DCE interfaces and, as a result, requires fewer circuits and a smaller connector than EIA/TIA-232.

The router (FSIP) end of all X.21 adapter cables is a high-density 60-pin plug. The opposite (network) end of the adapter cable is a standard DB-15 connector.

Figure 17 shows the connectors at the network end of the X.21 adapter cable.

Figure 17 X.21 Adapter Cable Connectors, Network End

DTE

EIA-530 Connections

DCE

H1346a

The EIA-530 interface, which supports balanced transmission, provides the increased functionality, speed, and distance of EIA/TIA-449 on the smaller, DB-25 connector used for EIA/TIA-232. The EIA-530 interface is used primarily in the United States. The EIA-530 standard was created to support the more sophisticated circuitry of EIA/TIA-449 on the large number of existing EIA/TIA-232 (DB-25) hardware. Like EIA/TIA-449, EIA-530 refers to the electrical speciﬁcations of EIA/TIA-422 and EIA/TIA-423. Although the speciﬁcation recommends a maximum speed of 2 Mbps, EIA-530 is used successfully at 4 Mbps and at even faster speeds over short distances.

The router (FSIP) end of the EIA-530 adapter cable is a high-density 60-pin plug. The opposite (network) end of the adapter cable is a standard DB-25 plug commonly used for EIA/TIA-232 connections.

Figure 18 shows the DB-25 connector at the network end of the adapter cable.

Figure 18 EIA-530 Adapter Cable Connector, Network End (Available in DTE Only)

DTE

H1615a

Fast Serial Interface Processor (FSIP) Installation and Configuration 31

FSIP Port Adapters, Interface Cables, and Connections

Metric Thumbscrews

A pair of metric thumbscrews is included with each port adapter cable except V.35. If you plan to connect serial cables to a remote device that uses metric hardware, replace the standard 4-40 thumbscrews at the network end of the cable with the metric, M3 thumbscrews.

To remove thumbscrews, use the ﬂat side of a large (1/4-inch) ﬂat-blade screwdriver to push the tip of the screw into the connector housing and out the other side. (See Figure 19.) If the screw resists, use pliers to pull it out. Insert the new thumbscrew and push it into the connector housing until it pops into place.

Figure 19 Removing Thumbscrews

Cable Connection Precautions

The router (port adapter) end of the FSIP serial interface cables must be connected to the 60-pin receptacles on the port adapter as shown at the top of Figure 20. Although the 60-pin plug on each cable is keyed for proper insertion, it can be forced onto the port adapter’s receptacle if you are not careful. Also, older serial cables, with fewer pins, cannot be used for the 60-pin receptacle on the port adapter.

Figure 20 Correct and Incorrect Connection of FSIP Cables

Correct

Router port FSIP Cable

Incorrect, cable upside down

H1621a

FSIP serial interface cable

Incorrect, wrong cable

Router port SIP cable

32 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

SIP serial interface cable

H2170

Attaching Network Interface Cables to the FSIP

All FSIP ports support any availablesynchronous serial interface type and mode. The serial adapter cable determines the electrical interface type and mode of the port to which it is connected. E1-G.703/G.704,EIA/TIA-232, EIA/TIA-449, V.35, and X.21 interfaces are availableinDTEmode with a plug at the network end and in DCE mode with a receptacle at the network end. EIA-530 is available only in DTE mode with a plug. Connect the FSIP serial cables as shown in Figure 21; however, observe the connection precautions indicated in the section “Cable Connection Precautions” on page 32.

Figure 21 Connecting Cables to the FSIP

FSIP Port Adapters, Interface Cables, and Connections

CSU

V.35 cable

DSU

E1-G.703/G.704, EIA/TIA-232, EIA/TIA-449, EIA-530, or X.21 cable

FSIP

H2633

When you connect serial devices, consider the adapter cables as an extension of the router for external connections. Therefore, use DTE cables to connect the router to remote DCE devices such as modems or DSUs, and use DCE cables to connect the router to remote DTE devicessuch as a host server, PC, or another router.

Note The serial cable determinesthe electrical interface type and mode ofthe FSIP port. When you

connect a remote DTE device (which means that the FSIP port is conﬁgured as a DCE interface), you must set the clock rate using the clockrate command. For a description of the clockrate command, refer to the section “Conﬁguring Timing (Clock) Signals” on page 39.

Fast Serial Interface Processor (FSIP) Installation and Configuration 33

Using LEDs to Check FSIP Status

The FSIP has several status LEDs on its faceplate, next to each port, which indicate conditions on that port. (See Figure 22.)

Figure 22 FSIP LEDs

-RxD

-TxC

-Conn

H2062

ENABLED

-RxC

After system initialization, the enabled LED goes on to indicate that the FSIP has been enabled for operation.

The following conditions must be met before the FSIP is enabled:

• The FSIP microcode is valid and has been downloaded successfully.

• The FSIP is correctly connected to the backplane and is receiving power.

• The system bus recognizes the FSIP.

If any one of these conditions is notmet, or if the initialization fails, the enabled LED does notgo on. The four LEDs adjacent to each port indicate the state of that interface. The labels on each LED

indicate the signal state when the FSIP port is in DTE mode. When the FSIP port is in DCE mode, the direction of the signals is reversed.

For example, a DCE device usually generates a clock signal, which it sends to the DTE device. Therefore, when the FSIP port is a DTE port, the ReceiveClock (RxC) LED indicates that the DTE is receiving the clock signal from the remote DCE device. However, when the FSIP is operating as a DCE, the RxC LED indicates that the DCE is sending a clock signal to the remote DTE device. Only DTE mode states are labeled on each port because of limited space on the FSIP faceplate.

34 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

Using LEDs to Check FSIP Status

Figure 23 shows the signal ﬂow between DTE and DCE devices and the LEDs that correspond to signals for each mode.

Figure 23 DTE to DCE Signals

DTE DCE

TxC

TxD TxC

RxD RxC

RxC RxD

DCD DSR DTR RTS CTS

TxC

H1612a

Table 9 lists the LED states for ports in DTE and DCE mode; a more complete explanation follows.

Table 9 FSIP LEDs LED DTE Signal DCE Signal

RxC Receive clock (from DCE) (TxC) Transmit clock (to DTE) RxD Receive data (from DCE) (TxD) Transmit data (from DTE) TxC Send timing (from DCE) (RxC) Receive timing (to DTE) Conn Connected Connected

Fast Serial Interface Processor (FSIP) Installation and Configuration 35

Using LEDs to Check FSIP Status

The following LED state descriptions include meanings for both DTE and DCE interfaces:

• RxC—On both DTE and DCE interfaces, this LED is on when the port is receiving an external

clock signal.

• RxD—On both DTE and DCE interfaces, this LED is on when the port is receiving data signals

(packets) from the network. This LED is also on when it detects an idle pattern that is commonly sent across the network during idle time.

• TxC—On DTE interfaces, this LED is on when the port is receiving the TxC signal. On DCE

interfaces, it indicates that the DCE is sending the TxC signal to the DTE.

• Conn—On both DTE and DCE interfaces, this LED is on to indicate normal operation: the FSIP

is properly connected to the external device, and DTE available (TA) and DCE available (CA) are active. When this LED is off, theFSIP is in loopback mode or is not connected to the network or external device.

Note Theconn LED is on whenthe interface is connected tothe network. During normal operation,

the three other LEDs are on to indicate data and timing signal trafﬁc, or an idle pattern that is commonly sent across the line during idle time.

Verify that the FSIP is connected correctly as follows:

Step 1 While the system reinitializes each interface, observe the console display messages and

verify that the system discovers the FSIP. The system should recognize the FSIP interfaces but leave them conﬁgured as down.

Step 2 When the reinitialization is complete, verify that the enabled LED on the FSIP is on and

remains on. If the LED does stay on, proceed to Step 5. If the enabled LED does not stay on, proceed to the next step.

Step 3 If the enabled LED on the FSIP fails to go on, suspect that the FSIP board connector is

not fully seated in the backplane. Loosen the captive installation screws,then ﬁrmly push the ejector levers until both are parallel to the FSIP faceplate. Tighten the captive installation screws. After the system reinitializes the interfaces, the enabled LED on the FSIP should go on. If the enabled LED goes on, proceed to Step 5. If the enabled LED does not go on, proceed to the next step.

36 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

Configuring the FSIP

Step 4 If the enabled LED still fails to go on, remove the FSIP and try installing it in another

available interface processor slot.

• If the enabled LED goes on when the FSIP is installed in the new slot, suspect a failed

backplane port in the original interface processor slot.

• If the enabled LED still fails to go on, but other LEDs on the FSIP go on to indicate

activity, proceed to Step 5 to resume the installation checkout and suspect that the enabled LED on the FSIP has failed.

• If no LEDs on the FSIP go on, suspect that the FSIP is faulty.

• If the enabled LED still does not go on, do not proceed with the installation. Contact

a service representative to report the faulty equipment and obtain further instructions.

Step 5 Use the show interfaces or show controllers cbus command to verify the status of the

FSIP interfaces. (If the FSIP interfaces are not conﬁgured, conﬁgure them using the procedures in the section “Conﬁguring the FSIP.”)

If an error message displays on the console terminal, refer to the appropriate reference publication for error message deﬁnitions. If you experience other problems that you are unable to solve, contact a service representative for assistance.

Conﬁguring the FSIP

If you want to change the conﬁguration of an existing interface, you must enter conﬁguration mode to conﬁgure the interface. If you replaced an FSIP that was previously conﬁgured, the system will recognize the new FSIP interfaces and bring each of them up in their existing conﬁguration.

After you verify that the new FSIP is installed correctly (the enabled LED goes on), use the privileged-level conﬁgure command to conﬁgure the new interfaces. Be prepared with the information you will need, such as the following:

• Protocols you plan to route on each new interface

• Internet protocol (IP) addresses if you will conﬁgure the interfaces for IP routing

• Whether or not the new interfaces will use bridging

• Timing source for each new interface and clock speeds for external timing

Forcompletedescriptions of conﬁguration subcommands and theconﬁguration options availablefor serial interfaces, refer to the appropriate software documentation listed in the section “If You Need More Information” on page 2.

Conﬁguring the FSIP ﬁrst requires privileged-levelaccess to the EXEC command interpreter. Also, privileged-level access usually requires a password. (Contact your system administrator, if necessary, to obtain privileged-level access.)

Interface Port Numbering for the FSIP Serial Interfaces

Cisco 7000 series and Cisco 7500 series routers identify an interface address by its interface processor slot number and port number in the format slot/port. Each FSIP contains either four or eight serial interfaces. Ports are numbered sequentially beginning with interface 0. For example, the slot/port address of the ﬁrst interface on an FSIP installed in interface processor slot 0 is 0/0, and the adjacent port on the same FSIP is 0/1.

Fast Serial Interface Processor (FSIP) Installation and Configuration 37

Conﬁguring the FSIP

Conﬁguring the Interfaces

The following instructions are provided for performing a basic conﬁguration: enabling an interface, specifying IP routing, and setting up external timing on a DCE interface. You might also need to enter other conﬁguration subcommands, depending on the requirements for your system conﬁguration and the protocols you plan to route on the interface.

In the following procedure, press the Return key after each step unless otherwise noted.

Step 1 At the privileged-level prompt, enter conﬁguration mode and specify that the console

Step 2 At the prompt, specify the ﬁrst interface to conﬁgure by entering the subcommand

Step 3 If IP routing is enabled on the system, you can assign an IP address and subnet mask to

terminal will be the source of the conﬁguration subcommands, as follows:

Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#

interface, followed by the type (serial) and slot/port (interface processor slot number/0). The example that follows is for the ﬁrst port on an FSIP in interface processor slot 0:

Router(config)# interface serial 0/0

the interface with the ip address conﬁguration subcommand, as in the following example:

Router(config-if)# ip address 1.1.1.67 255.255.255.0

Step 4 Add any additional conﬁguration subcommands required to enable routing protocols and

adjust the interface characteristics.

Step 5 If you are conﬁguring a DTE interface, proceed to step 7. If you are conﬁguring a DCE

interface, you also need to conﬁgure the external clock signal, as described in the next step.

Step 6 Set the clock rate with the clockrate command. (For a description of the clockrate

command, refer to the section “Conﬁguring Timing (Clock) Signals” which follows.)

Router(config-if)# clockrate 72000

Step 7 Change the shutdown state to up and enable the interface as follows:

Router(config-if)# no shutdown

Step 8 When you have included all of the conﬁguration subcommands to complete the

conﬁguration, press Ctrl-Z to exit conﬁguration mode.

Step 9 Write the new conﬁguration to memory as follows:

Router# copy running-config startup-config [OK] Router#

Step 10 Exit the privileged level and return to the user level by entering disable at the prompt as

follows:

Router# disable Router>

Proceed to the following section to conﬁgure timing signals on your serial interfaces.

38 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

Conﬁguring Timing (Clock) Signals

All interfaces support both DTE and DCE mode (except the EIA/TIA-530 interface, which is DTE only). The mode of the interface cable attached to the port. To use a port as a DTE interface, you must connect a DTE adapter cable to the port. When the system detects the DTE mode cable, it automatically uses the external timing signal.

To use a port in DCE mode, you must connect a DCE interface cable and set the clock speed with the clockrate conﬁguration command. You must also set the clock rate to perform a loopback test.

This section describes how to set the clock rate on a DCE port and, if necessary, how to invert the clock to correct a phase shift between the data and clock signals.

Setting the Clock Rate

All DCE interfaces require a noninverted internal transmit clock signal, which is generated by the FSIP. The default operation on an FSIP DCE interface is for the DCE device (FSIP) to generate its own Transmit Clock (TxC) signal and send it to the remote DTE. The remote DTE device returns the clock signal to the DCE (FSIP port). The clockrate command speciﬁes the rate as a bits-per-second value.

In the following example, the clock rate for the ﬁrst serial interface on an FSIP in interface processor slot 0 (0/0) is deﬁned as 72 kbps:

Router(config)# interface serial 0/0 Router(config-if)# clockrate 72000

Configuring the FSIP

Use the no clockrate command to remove the clock rate. Following are the acceptable clockrate settings: 1200, 2400, 4800, 9600, 19200

38400, 56000, 64000, 72000, 125000 148000, 500000, 800000, 1000000, 1300000 2000000, 4000000, 8000000

Speeds above 64 kbps (64000) are not appropriate for EIA/TIA-232. On all interface types, faster speeds might not work if your cable is too long.

Inverting the Clock Signal

Systems that use long cables can experience high error rates when operating at higher transmission speeds. Slight variances in cable construction,temperature, and other factors cancause the clock and data signals to shift out of phase. If an FSIP DCE port is reporting a high number of error packets, a phase shift might be the problem. Inverting the clock can often correct this shift.

When a port isoperating in DCE mode, the default operation is for the attachedDTE device to return the Synchronous Clock Transmit Enable (SCTE) signal to the DCE (FSIP port). The DCE sends the Synchronous Clock Transmit (SCT) andSynchronous Clock Receive (SCR) signals to the DTE,and the DTE returns an SCTE signal to the DCE. If the DTE does not return the SCTE signal, you must use the command transmit-clock-internal to conﬁgure the DCE port to use its own clock signal in place of the SCTE signal that would normally be returned.

To conﬁgure an interface to accept the internal clock generated by the FSIP in place of the SCTE signal that is normally returned by the DTE device, specify the slot and port address of the interface followed by the command transmit-clock-internal.

Fast Serial Interface Processor (FSIP) Installation and Configuration 39

Conﬁguring the FSIP

In the example that follows, the ﬁrst serial port on an FSIP in interface processor slot 0 is conﬁgured to accept the internal clock signal:

Router(config)# interface serial 0/0 Router(config-if)# transmit-clock-internal

When the FSIP port is a DTE, the invert-transmit-clockcommandinvertsthe TxCsignal it receives from the remote DCE. When the FSIP port is a DCE, this command inverts the clock signal to the remote DTE port. Use the no invert-transmit-clockcommand to change the clock signal back to its original phase.

Conﬁguring NRZI Format

All interfaces support both NRZ and NRZI formats. Both formats use two different voltage levels for transmission. NRZ signals maintain constant voltage levels with no signal transitions (no return to a zero voltage level) during a bit interval and are decoded using absolute values (0 and 1). NRZI uses the same constant signal levels, but interprets the presence of data at the beginning of a bit interval as a signal transition and the absence of data as no transition. NRZI uses differential encoding to decode signals rather than determining absolute values.

NRZ format, the factory default on all interfaces, is most common. NRZI format, which is conﬁgured with a software command, is commonly used with EIA/TIA-232 connections in IBM environments. To enable NRZI encoding on any interface, specify the slot and port address of the interface followed by the command nrzi-encoding. Enter Ctrl-Z when you have ﬁnished with the conﬁguration change. In the example that follows, the ﬁrst serial port on an FSIP in interface processor slot 0 is conﬁgured for NRZI encoding:

Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# interface serial 0/0 Router(config-if)# nrzi-encoding Router(config-if)# ^Z

Conﬁguring CRCs

To disable NRZI encoding on a port, specify the slot and port address and use the no nrzi-encoding command.

The cyclic redundancy check (CRC) is an error-checking technique that uses a calculated numeric valueto detect errorsin transmitted data. All interfaces use a 16-bit CRC by default,but also support a 32-bit CRC. The sender of a data frame divides the bits in the frame message by a predetermined number to calculate a remainder or frame check sequence (FCS). Before it sends the frame, the sender appends the FCS value to the message so that the frame contents are exactly divisible by the predetermined number. The receiver divides the frame contents by the same predetermined number that the sender used to calculate the FCS. If the result is not 0, the receiver assumes that a transmission error occurred and sends a request to the sender to resend the frame.

The designators 16 and 32 indicate the number of check digits per frame that are used to calculate the FCS. CRC-16, which transmits streams of 8-bit characters, generates a 16-bit FCS. CRC-32, which transmits streams of 16-bit characters, generates a 32-bit FCS. CRC-32 transmits longer streams at faster rates; therefore, it provides better ongoing error correction with fewer retransmissions. Both the sender and the receiver must use the same setting.

40 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

To enable 32-bit CRC on an interface, specify the slot and port address of the interface followed by

the command crc32. In the example that follows, the ﬁrst serial port on an FSIP in interface processor slot 0 is conﬁgured for 32-bit CRC:

Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# interface serial 0/0 Router(config-if)# crc32

Ctrl-Z

To disable CRC-32 and return to the default CRC-16 setting, specify the slot and port address and use the no crc32 command.

For additional command descriptions and examples, refer to the related software conﬁguration documentation listed in the section “If You Need More Information” on page 2.

Conﬁguring E1-G.703/G.704 Balanced and Unbalanced Modes

The E1-G.703/G.704 interface is available in either balanced or unbalanced mode. A unique port adapter supports each type. Neither the modes nor the cables are interchangeable; you cannot conﬁgure a balanced port to support an unbalanced line, nor can you attach an interface cable intended for a balanced port to an unbalanced port.

Configuring the FSIP

Balancedinterfacestypically use three conductors and threesignalstates: high, low,and ground. The high and low signals mirror each other. Unbalanced interfaces use only two signals: signal and ground. You can determine the mode of each interface in two ways: check the agency approvallabel on each FSIP port or use the show controller cbus command. Following is an example of the latter:

Router# show controllers cbus

(additional displayed text omitted from this example)

FSIP 0, hardware version 1.0, microcode version 1.0

Interface 8 - Serial0/0, electrical interface is E1-G.703, balanced

Interface 9 - Serial0/1, electrical interface is E1-G.703, balanced

(additional displayed text omitted from this example)

Conﬁguring E1-G.703/G.704 Framed and Unframed Operation

The E-G.703 interface is divided into 32 time slots, or frames. (See Figure 24.) Each of the 32 time slots is an 8-bit frame that transmits data at 64 kbps. Each of these time slots can be conﬁgured to carry data or to remain empty. (The E1-G.703/G.704 port adapter inserts an idle pattern into empty time slots.)

Figure 24 Time Slot Diagram

2,048 Mbps

64 kbps 8 bits

ime slot

0 1 2 3 29303128

32 time slots = 256 bits

H2402

Fast Serial Interface Processor (FSIP) Installation and Configuration 41

Conﬁguring the FSIP

Timeslot 0, or the ﬁrst 8 bits, is reserved as overhead. The remaining 248 bits (31 frames with 8 bits each) are designated time slots 1 through 31. Time slot 16 is also designated as a framing slot when using framed mode.

The E1-G.703/G.704 interfaces support both framed (G.704) and unframed (G.703) modes of operation.Framed mode allows you to specify abandwidth for the interface by designating anumber of the 32 time slots for data, and reserving others for framing (timing). When you use framed mode, you must designate start and stop time slots; the slots within these boundaries are used for data, and the remaining slots are left idle.

For example, on an interface with framing set on time slots 1 through 8, the interface will carry data within the speciﬁed 8 frames, and frames 9 through 31 will remain idle. Because each time slot transmits at 64 kbps, the interface will operate at 512 kbps (8 frames x 64 kbps = 512 kbps).

By conﬁguring 16 of the time slots to carry data and the remaining 16 to remain empty, you can essentially conﬁgure the interface for 1.024 Mbps. The FSIP inserts an idle pattern into unused time slots to identify them as overhead (unused for data). Only one contiguous time slot range can be used.

When you use unframed mode (G.703), you can conﬁgure time slot 16 to carry data and operate as any of the other slots. In framed mode (G.704), time slot 0 must be designated as a framing signal and time slot 16 can be conﬁgured for either data or framing. Unframed mode uses all 32 time slots for data (data is also called payload). None of the 32 time slots are used for framing signals. This allows each of the 32 time slots to transmit at 64 kilobits per second (kbps).

In PABXsystems, time slot 16 is always left unused. By default, time slot 16 is not enabled for data in the FSIP E1-G.703/G.704 interface. By default, time slot 16 is not enabled for data in the E1-G.703/G.704 interface. The command ts16overridesthedefault and enables time slot 16 to carry data. Nonsensical combinations of start and stop slots will be ignored, and the interface will be left unchanged. To restore the system default, use the no timeslot 16 command.

To enable framed operation, use the timeslot command; specify the start and stop slots, separated by a hyphen.

The following example shows the syntax of the timeslot command:

[no] timeslot 0/start-slot-31/stop_slot

The following example shows the timeslot command with a start slot of 1 and a stop slot of 13:

Router# timeslot 1-13

The no timeslot command restores the default of unframed mode.

Conﬁguring E1-G.703/G.704 CRC-4

Framed mode supports a 4-bit CRC, which you enable with a software command. CRC-4 is a 4-bit error checking technique that uses a calculated numeric value to perform an ongoing data integrity check and detect errors in transmitted data. The E1-G.703/G.704 interface supports CRC in framed mode only. By default, CRC-4 is not enabled. Toenable CRC-4 on the E1 interface, specify the slot and port address of the interface followed by the command crc4. Press Ctrl-Z after altering the conﬁguration and before exiting conﬁguration mode.

42 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

In the example that follows, the ﬁrst port on an FSIP in interface processor slot 0 is conﬁgured for CRC-4:

Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# interface serial 0/0 Router(config-if)# crc4

Ctrl-Z

To disable CRCand return aninterface to the defaultof no CRC error checking, specify the interface and use the no crc4 command.

Conﬁguring E1-G.703/G.704 Clock Source

The E1-G.703/G.704 interface does not operate in the DTE and data communications equipment (DCE) modes that are typical of data communications interfaces. The E1-G.703/G.704 interface operates with either a line-recoveredor an internal clock signal. The default is for a line clock signal that the interface recovers from the received data stream. The interface can also operate with an internal clock signal. The E1-G.703/G.704 port adapter generates the internal clock signal; the interface does not use the FSIP clock.

We recommend that you leave one port on each module shut down to avoid exceeding the

6.132 Mbps maximum for each module because the E1-G.703/G.704 interfaces operate at a default clock rate of 2.048 Mbps (E1 speed).

Configuring the FSIP

To specify the clock source, use the clock source {line | internal} command. Tochange the default and use the internal clock, use the clock source internal command. To return the interface to the default state, use the clock source line command. (The no clock source internal command also returns the interface to the default state.)

Interpreting E1-G.703/G.704 Alarms

The following deﬁnes and describes the ﬁve alarms used with the E1-G.703/G.704 interface:

• AIS—The alarm indication signal occurs and a failure is declared (for E1 links) when 64

consecutive ones occur on the Receive Data (RD) line between the applique and the FSIP.

• RAI—The remote alarm indication (also called the far end alarm and distant alarm for E1 links)

is sent by the remote end of the link to indicate failure at the remote end. This failure is declared (for E1 links) when 32 contiguous pulse positions have no pulses of either positive or negative polarity.

• LOS—The loss of signal alarm occursand a failureis declared (for E1 links) when more than ten

consecutive zeroes are detected.

• LOF—The loss of frame alarm occurs and a failure is declared (for E1 links) when an

out-of-frame (OOF) defect has persisted for T seconds, where 2 T 10. This failure is cleared when there have been no OOF defects during a period T seconds, where 0 T 20.

• SQ—The signal quality alarm occurs and a failure is declared (for E1 links) when the bit error

rate (BER) is greater than 10–3 on the RD line between the applique and the FSIP.

Fast Serial Interface Processor (FSIP) Installation and Configuration 43

Conﬁguring the FSIP

Conﬁguring E1-G.703/G.704 Loopback

The E1-G.703/G.704 interface supports the same local loopback test as the other (data communications) FSIP interfaces. Loopback functions enable you to check the integrity of the physical data path between the FSIP and the E1 port adapter with the loopback command. The no loopback command disables all loopback tests on the interface.

You do not have to conﬁgure a clock signal on the interface before performing a loopback test because the E1-G.703/G.704 interface uses a default clock rate of 2.048 Mbps.

The loopback command tests the path between the FSIP and the interface port (without leaving the FSIP and port adapter). On the E1 port adapter, the loopback signal follows this path regardless of whether or not a cable is attached to the port.

Figure 25 shows the path of the loopback function.

Figure 25 Loopback Path for FSIP E1-G.703/G.704

FSIP

Loopback

EI-G.703/G.704

port adapter

H2401

Replacing Port Adapter Cables and Changing Interface Modes

The port adapter cable connected to each port determines the electrical interface type and mode of the port. The default mode of the ports is DCE, which allows you to perform a loopback test on any port without having to attach a port adapter cable. Although DCE is the default, there is no default clock rate set on the interfaces. When there is no cable attached to a port, the software actually identiﬁes the port as Universal, Cable Unattached rather than either a DTE or DCE interface.

Following is an example of the show controller cxbus command, which shows the ﬁrst serial port on an FSIP in interface processor slot 0 (0/0) that has an EIA/TIA-232 DTE cable attached, and a second serial port (0/1) with no cable attached:

Router# show controller cxbus

(additional displayed text omitted from this example)

FSIP 0, hardware version 3, microcode version 1.0 Interface 16- Serial0/0, electrical interface is RS-232 DTE 31 buffer RX queue threshold, 101 buffer TX queue limit, buffer size 1520 Transmitter delay is 0 microseconds

Interface 17- Serial0/1, electrical interface is Universal (cable unattached) 31 buffer RX queue threshold, 101 buffer TX queue limit, buffer size 1520

(additional displayed text omitted from this example)

To change the electrical interface type or mode of a port online, you must replace the serial adapter cable and use software commands to restart the interface and, if necessary, reconﬁgure the port for the new interface.

44 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

Configuring the FSIP

At system startup or restart, the FSIP polls the interfaces and determines the electrical interface type of each port (according to the type of port adapter cable attached). However, it does not necessarily repoll an interface when you change the adapter cable online. To ensure that the system recognizes the new interface type, shut down and reenable the interface after changing the cable.

Perform the followingsteps to change the mode (DTE or DCE) or interface type (EIA/TIA-232, and so forth) of a port by replacing the adapter cable. First replace the cable, then shut down and bring up the interface with the new cable attached so that the system recognizes the new interface. If you are replacing a cable with one of the same interface type and mode, these steps are not necessary (simply replace the cable without interrupting operation).

Step 1 Locate and remove the adapter cable to be replaced. Step 2 Connect the new cable between the FSIP port and the network connection. Tighten the

thumbscrews at both ends of the cable to secure it in the ports.

Step 3 At the privileged level of the EXEC command interpreter, specify the port address, shut

down the interface, and write the conﬁguration to nonvolatile random-access memory (NVRAM). Add additional conﬁguration commands as needed. Then exit from conﬁguration mode by entering Ctrl-Z.

Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# int serial 0/1 Router(config-if)# shutdown

Ctrl-Z

Router# copy running-config startup-config

Step 4 Enter conﬁguration mode again and bring the port back up:

Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# int serial 0/1 Router(config-if)# no shutdown Router(config-if)# ^Z

These steps prompt the system to poll the interface and recognize the new interface immediately. When you conﬁgure a port for a DCE interface for the ﬁrst time, or when you set up a loopback test,

you must set the clock rate for the port. When you connect a DCE cable to a port, the interface will remain down,the clock LEDs willremain off, and the interfacewill not function until you set a clock rate (regardless of the DCE mode default).

If you are changingthe mode of the interface from DCE to DTE, you do not need to changethe clock rate for the port. After you replace the DCE cable with a DTE cable and the system recognizes the interface as a DTE, it will use the external clock signal from the remote DCE device and ignore the internal clock signal that the DCE interface normally uses. Therefore, once you conﬁgure the clock rate on a port for either a DCE interface or loopback, you can leave the clock rate conﬁgured and still use that port as a DTE interface.

For additional descriptions of software conﬁguration commands, refer to the appropriate publications listed in the section “If You Need More Information” on page 2.

Fast Serial Interface Processor (FSIP) Installation and Configuration 45

Conﬁguring the FSIP

Using Show Commands to Check the Conﬁguration

The following summary describes how to use the show commands to verify that the new interfaces are conﬁgured correctly:

Step 1 Use the show version command to display the system hardware conﬁguration. Ensure

that the list includes the new interfaces.

Step 2 Display all the current interface processors and their interfaces with theshowcontrollers

cbus command. Verify that the new FSIP appears in the correct slot.

Step 3 Specify one of the new interfaces with the show interfacesserial slot/port command and

verify that the ﬁrst line of the display speciﬁes the interface with the correct slot number. Also verify that the interface and line protocol are in the correct state: up or down.

Step 4 Display the protocols conﬁgured for the entire system and speciﬁc interfaces with the

command show protocols. If necessary, return to conﬁguration mode to add or remove protocol routing on the system or speciﬁc interfaces.

Step 5 Display the entire system conﬁguration ﬁle with the show running-conﬁg command.

Verify that the conﬁguration is accurate for the system and each interface.

If an interface is down and you conﬁgured it as up, or if the displays indicate that the hardwareis not functioning properly, ensure that the network interface is properly connected and terminated. If you still have problems, contact a service representative for assistance.

This completes the FSIP conﬁguration procedure.

46 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

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Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco’s customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, conﬁguration notes, brochures, descriptions of service offerings, and downloadaccess to public and authorized ﬁles.

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Note If you are a network administrator and need personal technical assistance with a Cisco

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This document is to be used in conjunction with the router installation and conﬁguration guide that shipped with your Cisco 7000 series or Cisco 7500 series router. (1147fsip.fm[78-1147-06])

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Fast Serial Interface Processor (FSIP) Installation and Configuration 47

Cisco Information Online

48 Fast Serial Interface Processor (FSIP) Installation and Conﬁguration

Cisco CX-FSIP8, X-FSIP4, UPG-7KF-SPA, UPG-FSIP8, PA-7KF-SPA Installation And Configuration Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

If You Need More Information

What is the FSIP?

FSIP Interface Types

Synchronous Serial Distance Limitations

FSIP Installation Prerequisites

E1-G.703/G.704 Distance Limitations

Software Requirements

Startup Error Message

List of Parts and Tools

Safety Guidelines

Safety Warnings

Electrical Equipment

Telephone Wiring

Preventing Electrostatic Discharge Damage

Interface Processor Slot Locations

Guidelines for Interface Processor Removal and Installation

Interface Processor Replacement Procedures

Removing an Interface Processor

Installing an Interface Processor

FSIP Port Adapters, Interface Cables, and Connections

FSIP Interface Cables

FSIP Port Adapter Interface and Cable Pinouts

FSIP Cable Connections

EIA/TIA-232 Connections

EIA/TIA-449 Connections

V.35 Connections

X.21 Connections

EIA-530 Connections

Metric Thumbscrews

Cable Connection Precautions

Attaching Network Interface Cables to the FSIP

Using LEDs to Check FSIP Status

Configuring the FSIP

Interface Port Numbering for the FSIP Serial Interfaces

Setting the Clock Rate

Inverting the Clock Signal

Interpreting E1-G.703/G.704 Alarms

Replacing Port Adapter Cables and Changing Interface Modes

Cisco Information Online