Cisco Systems Pa 2E3 Installation And Configuration Guide

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PA-E3 Serial Port Adapter Installation
and Configuration
Product Number: PA-E3(=) and PA-2E3(=)
Platforms Supported: Cisco 7500 Series, Cisco 7000 Series,
VIP2, Cisco 7200 Series, Cisco uBR7200 Series, Cisco 7100
Series, Catalyst 5000 Family Switches
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PA-E3 Serial Port Adapter Installation and Configuration
Copyright © 1997-1999 Cisco Systems, Inc.
All rights reserved.

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Text Part Number: 78-4482-08

Preface
This preface describes how to find additional information on the PA-E3 serial port adapter and other
Cisco products, services, and documentation. This preface contains the following sections:

•
•
•
•
•

Objectives, page v
Organization, page v
Related Documentation, page vi
Cisco Connection Online, page viii
Documentation CD-ROM, page viii

Objectives
This document describes how to install and configure the PA-E3 serial port adapter (PA-E3[=] and
PA-2E3[=]) in the following platforms:

•

Second-generation Versatile Interface Processor (VIP2) in Cisco 7500 series routers and
Cisco 7000 series routers with the Cisco 7000 Series Route Switch Processor (RSP7000) and
Cisco 7000 Series Chassis Interface (RSP7000CI).

•

Cisco 7200 series routers, which consist of the two-slot Cisco 7202, four-slot Cisco 7204 and
Cisco 7204VXR, and six-slot Cisco 7206 and Cisco 7206VXR

•
•
•

Cisco uBR7200 series universal broadband routers
Cisco 7100 series routers, which consist of the Cisco 7120 and Cisco 7140
Catalyst Route Switch Module (RSM)/VIP2 in the Catalyst 5000 family switches

Organization
This document is organized into the following chapters:
Section

Title

Description

Chapter 1

Overview

Describes the PA-E3 port adapter and
describes its LED displays, cables, and
receptacles.

Chapter 2

Preparing for Installation

Describes safety considerations, tools
required, and procedures you should
perform before the actual installation.

Preface v

Related Documentation

— Route Switch Module Catalyst VIP2-15 and VIP2-40 Installation and Configuration Note
(Document Number 78-4780-01) which shipped with your Catalyst RSM/VIP2.

•

For hardware installation and maintenance information on Cisco 7100 series routers, refer to the
Cisco 7100 Series Installation and Configuration Guide publication that shipped with your
Cisco 7100 series router.

•

For information on setting up a Virtual Private Network, see the Cisco 7100 Series VPN
Configuration Guide.

•

For hardware installation and maintenance information on the Cisco 7200 VXR routers, refer to
the Cisco 7200 VXR Installation and Configuration Guide publication that shipped with your
Cisco 7200 VXR router.

•

For hardware installation and maintenance information on the Cisco 7200 routers, refer to the
following publications that shipped with your router:
— Cisco 7202 Installation and Configuration Guide
— Cisco 7204 Installation and Configuration Guide
— Cisco 7206 Installation and Configuration Guide

•

For hardware installation and maintenance information on the Cisco uBR7200 series routers,
refer to the Cisco uBR72xx Universal Broadband Router Installation and Configuration Guide
that shipped with your Cisco uBR7200 series router.

•

For international agency compliance, safety, and statutory information for WAN interfaces for
the Cisco 7500 series routers, Cisco 7000 series routers, Cisco 7200 series routers, Cisco
ubr7200 series routers, and Cisco 7100 series routers, refer to the following publications:
— Regulatory Compliance and Safety Information for the Cisco 7500 Series Routers
— Regulatory Compliance and Safety Information for the Cisco 7000 Series Routers
— Regulatory Compliance and Safety Information for the Cisco 7200 Series Routers
— Regulatory Compliance and Safety Information for the Cisco 7100 Series Routers
— Regulatory Compliance and Safety Information for the Cisco uBR72xx Universal
Broadband Router

Note The regulatory compliance and safety information documentation listed above applies to the

Catalyst 5000 family switches and the Catalyst RSM/VIP2.

•

For port adapter hardware and memory configuration guidelines for the Cisco 7200 series
routers, refer to the document Cisco 7200 Series Port Adapter Hardware Configuration
Guidelines.

To view Cisco documentation or obtain general information about the documentation, see the “Cisco
Connection Online” section on page viii or the “Related Documentation” section on page vi, or call
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 Cisco-observed holidays). You can also
send e-mail to cs-rep@cisco.com.

Preface vii

Cisco Connection Online

Cisco Connection Online
Cisco Connection Online (CCO) is Cisco Systems’ primary, real-time support channel. Maintenance
customers and partners can self-register on CCO to obtain additional information and services.
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 download access to public and
authorized files.
CCO serves a wide variety of users through two interfaces that are updated and enhanced
simultaneously: a character-based version and a multimedia version that resides on the World Wide
Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet
e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version
of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well
as hyperlinks to related information.
You can access CCO in the following ways:
WWW: http://www.cisco.com
WWW: http://www-europe.cisco.com
WWW: http://www-china.cisco.com
Telnet: cco.cisco.com
Modem: From North America, 408 526-8070; from Europe, 33 1 64 46 40 82. Use the following
terminal settings: VT100 emulation; databits: 8; parity: none; stop bits: 1; and connection rates up
to 28.8 kbps.
For a copy of CCO’s Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For
additional information, contact cco-team@cisco.com.
If you are a network administrator and need personal technical assistance with a Cisco product that
is under warranty or covered by a maintenance contract, contact Cisco’s Technical Assistance Center
(TAC) at 800 553-2447, 408 526-7209, or tac@cisco.com. To obtain general information about
Cisco Systems, Cisco products, or upgrades, contact 800 553-6387, 408 526-7208, or
cs-rep@cisco.com.

Documentation CD-ROM
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 current 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. Click Feedback in the toolbar and select Documentation. After you complete the
form, click Submit to send it to Cisco. We appreciate your comments.

viii

PA-E3 Serial Port Adapter Installation and Configuration

C H A P TER

Overview
This chapter describes the one-port PA-E3 and two-port PA-2E3 E3 serial port adapters. This
chapter contains the following sections:

•
•
•
•
•
•

Port Adapter Overview, page 1-1
PA-E3 Serial Port Adapter Features, page 1-2
Management Information Base, page 1-3
PA-E3 Port Adapter LEDs, page 1-3
PA-E3 Receptacles and Cables, page 1-4
Interoperability Guidelines for PA-E3 DSUs, page 1-5

Port Adapter Overview
The PA-E3 is a single-width, one-port or two-port module that integrates data service unit (DSU)
functionality into the Cisco router (see Figure 1-1 and Figure 1-2). The module provides one or two
high-speed serial E3 interfaces on:

•
•
•
•
•

Cisco 7100 series routers
Cisco 7200 series routers
Cisco uBR7200 series routers
Second-generation Versatile Interface Processors (VIP2) in all Cisco 7000 series and Cisco 7500
series routers
Catalyst RSM/VIP2 in the Catalyst 5000 family switches

Note Port adapters have a handle attached, but this handle is occasionally not shown in figures in

this publication to allow a full view of detail on the port adapter’s faceplate.

Overview 1-1

Port Adapter Overview

Figure 1-1

One-Port PA-E3 Serial Port Adapter

LK
FE
RF
RL

Figure 1-2

H10607

AIS
OO
F

RC
VR

EN
AB

LE
D

E3 SERIAL

Two-Port PA-2E3 Serial Port Adapter

H10050

AIS
OO
F

LK
RF
RL
FE

TR
XM

VR
RC

2E3 SERIAL

The one-port PA-E3 provides two network interfaces per VIP2 for Cisco 7000 series and
Cisco 7500 series routers and the Catalyst RSM/VIP2 for Catalyst 5000 family switches, and one
high-speed interface on the Cisco 7100 series, Cisco 7200 series, and Cisco uBR7200 series routers.
The two-port PA-2E3 provides four network interfaces per VIP2 for Cisco 7000 series and
Cisco 7500 series routers and the Catalyst RSM/VIP2 for Catalyst 5000 family switches, and two
high-speed interfaces on the Cisco 7100 series, Cisco 7200 series, and Cisco uBR7200 series
routers.
Serial network interfaces reside on modular port adapters, which provide a direct connection
between the high-speed bus in the router and the external networks. The PA-E3 provides a
full-duplex synchronous serial E3 interface for transmitting and receiving data at rates of up to
34 megabits per second (Mbps).
The port adapter supports both 16- and 32-bit cyclic redundancy checks (CRCs). The default is
16-bit CRCs; to enable 32-bit CRCs, you use a configuration command. For a description of the CRC
function, see the “Configuring Cyclic Redundancy Checks” section on page 8-10.
Note Although the VIP2 and Catalyst RSM/VIP2 supports online insertion and removal (OIR),

individual port adapters do not. To replace port adapters, you must first remove the VIP2 and
Catalyst RSM/VIP2 from the chassis, and then replace port adapters as required.
The Cisco 7100 series, Cisco 7200 series, and Cisco uBR7200 series routers support the OIR of all
port adapter types.

1-2

PA-E3 Serial Port Adapter Installation and Configuration

PA-E3 Serial Port Adapter Features

PA-E3 Serial Port Adapter Features
The PA-E3 serial port adapter has the following features:

•

Single-width port adapter for the VIP2 in all Cisco 7000 series and Cisco 7500 routers, and in
Cisco 7100 series, Cisco 7200 series, and Cisco uBR7200 series routers

•
•
•
•
•
•
•
•
•
•
•
•
•
•

Single-width port adapter for the Catalyst RSM/VIP2 in the Catalyst 5000 family switches
Single- or double-port E3 rate (34 Mbps) connectivity
Full-duplex synchronous serial E3 interface
High-speed High-Level Data Link Control (HDLC) data
Integrated data service unit (DSU) functionality
Support for 16- and 32-bit cyclic redundancy checks (CRCs)
Support for G.751 framing or bypass framing
Support for ATM-DXI, Frame Relay, HDLC, SMDS, and PPP serial encapsulations
Support for national service bits
Support for E3 MIB (RFC 1407)
Support for remote and local loopback
HDB3 line coding
Scrambling and bandwidth reduction
Online insertion and removal (OIR)

Management Information Base
Management Information Base (MIB) attributes are readable and writable across the Interim Local
Management Interface (ILMI) through use of the Simple Network Management Protocol (SNMP).
The one-port PA-E3 supports MIB-II (RFC 1213) and the E3 interface MIB (RFC 1407).
The two-port PA-2E3 supports MIB-II (RFC 1213) and the E3 interface MIB (RFC 1407).

PA-E3 Port Adapter LEDs
The one-port PA-E3 port adapter has one status LED and six uplink port status LEDs (RCLK, FERF,
OOF, AIS, RL, and LL) for the serial E3 port. (See Figure 1-3.)

LK
RC

E3 SERIAL

H10606

S
AI

OO
F

VR
RC

D
LE
AB
EN

One-Port PA-E3 Port Adapter LEDs—Partial Front View Shown

Figure 1-3

LEDs

Overview 1-3

PA-E3 Receptacles and Cables

The two-port PA-2E3 port adapter has one status LED and six uplink port status LEDs (RCLK,
FERF, OOF, AIS, RL, and LL) for each serial E3 port. (See Figure 1-4.)

2E3 SERIAL

H10049

LK
FE
RF

AI
S

LK
FE
RF
LL

AI
S

XM
TR

VR
RC

LE
AB
EN

Two-Port PA-2E3 Port Adapter LEDs—Partial Front View Shown

Figure 1-4

LEDs

After system initialization, the ENABLED LED goes on, indicating that the port adapter has been
enabled for operation.
The following conditions must be met before the PA-E3 port adapter is enabled:

•
•

The port adapter contains a valid microcode version that has been downloaded successfully.

•

For the Catalyst 5000 family switches, the port adapter is correctly connected to the
Catalyst RSM/VIP2 and is receiving power in the switch.

•

The bus recognizes the port adapter.

For Cisco 7000 and 7500 series routers, the port adapter is correctly connected to the VIP2 and
the midplane and is receiving power in the Cisco router.

If any of these conditions are not met, or if the initialization fails for other reasons, the ENABLED
LED does not go on.
Table 1-1 describes the PA-E3 LEDs.
Table 1-1

PA-E3 Port Adapter LEDs

Name

Color

State

Description

ENABLED

Green

Indicates that the port adapter is ready.

RCLK

Green

Indicates that a receive clock has been detected.

FERF

Yellow

Indicates that Framer detected Far End Receive
Failure.

OOF

Yellow

Indicates that Framer detected Out of Frame.

AIS

Yellow

Indicates that Framer detected Alarm Indication
Signal.

Yellow

Indicates that port is in remote loopback mode.

Yellow

Indicates that port is in local loopback mode.

Uplink port status

PA-E3 Receptacles and Cables
The serial interface cable for the PA-E3, which is a 75-ohm coaxial cable, is used to connect your
router to a serial E3 network. Serial cables conform to EIA/TIA-612 and EIA/TIA-613
specifications. The serial ports on the PA-E3 are considered to be DTE devices.

1-4

PA-E3 Serial Port Adapter Installation and Configuration

Interoperability Guidelines for PA-E3 DSUs

On a single PA-E3, there are one or two serial E3 ports, each with two connectors (receive and
transmit), where you connect the Cisco 75-ohm coaxial cable. The 75-ohm coaxial cable
(Cisco part number CAB-ATM-DS3/E3) for the PA-E3 is available only from Cisco Systems; it is
not available from outside commercial cable vendors.
The Cisco E3 75-ohm coaxial cable, which comes with an attached ferrite sleeve (see Figure 1-5),
is available only in 10-foot (3.05-meter) lengths. The typical maximum distance between stations
for E3 transmissions is 1300 feet (396 meters).
Note For E3 (75-ohm) connections, you must have ferrite beads on the 75-ohm coaxial cable and

EMI decoupling clips on the Rcvr end of the cable (see Figure 1-5) if compliance with European
certification standards for emission control is required (EN55022/CISPR22 Class B for radiated
emission levels).

Figure 1-5

PA-E3 Cables

H10314

LK
RF
FE

AIS
OO
F

EMI decoupler clip

Ferrite beads

You can test the DTE-to-DCE cable connection by using the loopback dte command. See the
“Using the loopback Command to Verify the Physical Interface” section on page 8-20 for more
information.

Interoperability Guidelines for PA-E3 DSUs
The PA-E3 supports several types of integrated DSUs. Table 1-2 lists the feature compatibilities of
the PA-E3 DSUs.
Table 1-2

Feature Compatibilities of PA-E3 DSUs

DSU

Full Rate
Support

Scrambling
Support

Subrate
Support

DL3100E

Yes

No1

Yes1

Kentrox

Yes

Yes2

DL3100E does not support scrambling. However, the PA-E3 can turn on scrambling
in DSU mode 0 for connecting to another PA-E3. The PA-E3 supports either
scrambling (in mode 0) or DL3100E subrate, not both at the same time.
The PA-E3 supports either scrambling or Kentrox subrate, not both at the same time.

Overview 1-5

Interoperability Guidelines for PA-E3 DSUs

1-6

PA-E3 Serial Port Adapter Installation and Configuration

C H A P TER

Preparing for Installation
This chapter describes the general equipment, safety, and site preparation requirements for installing
PA-E3 port adapters.

•
•
•
•

Parts and Tools Required, page 2-1
Software and Hardware Requirements, page 2-2
Safety Guidelines, page 2-3
Compliance Information, page 2-6

Parts and Tools Required
You need the following tools and parts to install a port adapter. If you need additional equipment,
contact a service representative for ordering information.

•

PA-E3 serial port adapter and one of the following:
— VIP2-15(=) if you are installing only one PA-E3 port adapter; otherwise, we recommend a
VIP2-40(=) or VIP2-50(=).
— Catalyst RSM/VIP2-15(=) if you are installing only one PA-E3 port adapter; otherwise, we
recommend a Catalyst RSM/VIP2-40(=).
— Cisco 7100 series router with at least one available port adapter slot.
— Cisco 7200 series router with at least one available port adapter slot.
— Cisco uBR7200 series router with at least one available port adapter slot.

•

Cisco 75-ohm coaxial serial interface cables. (The PA-E3’s 75-ohm cables are available only
from Cisco Systems; they are not available from outside commercial vendors.)

•

Number 1 Phillips screwdriver and a 3/16-inch flat-blade screwdriver (for VIP2 and
Catalyst RSM/VIP2 installation only).

•

Your own ESD-prevention equipment or the disposable grounding wrist strap included with all
upgrade kits, field-replaceable units (FRUs), and spares.

Preparing for Installation 2-1

Software and Hardware Requirements

Software and Hardware Requirements
Table 2-1 lists the minimum Cisco IOS software release required to use the one-port PA-E3 and
two-port PA-2E3 in supported router platforms.
Table 2-1

PA-E3 and PA-2E3 Software Requirements

Platforms

Recommended Minimum Cisco IOS Release

Cisco 7000 and Cisco 7500 Series

PA-E3

PA-2E3

• With VIP2-15(=) or VIP2-40(=)

Cisco IOS Release 11.1(13)CA or a later
release of Cisco IOS Release 11.1 CA

Cisco IOS Release 11.1(16)CA or a later
release of Cisco IOS Release 11.1 CA

• With VIP2-50(=)

Cisco IOS Release 11.1(14)CA or a later
release of Cisco IOS Release 11.1 CA

Cisco IOS Release 11.1(16)CA or a later
release of Cisco IOS Release 11.1 CA

• Cisco 7204VXR and Cisco 7206VXR

Cisco IOS Release 12.0(2)XE2 or a later
release of Cisco IOS Release 12.0 XE
Cisco IOS Release 12.0(3)T or a later release
of Cisco IOS Release 12.0 T

• Cisco 7204 and Cisco 7206

Cisco IOS Release 11.1(16)CA or a later
release of Cisco IOS Release 11.1 CA

• Cisco 7202

Cisco IOS Release 11.1(19)CC1 or a later
release of Cisco IOS Release 11.1 CC
Cisco IOS Release 11.3(4)AA or a later
release of Cisco IOS Release 11.3 AA

Cisco IOS Release 12.0(2)XA or a later
release of Cisco IOS Release 12.0 XA

Cisco 7200 Series

Cisco uBR7200 Series

• Cisco uBR7246 and Cisco uBR7223
Cisco 7100 Series

• Cisco 7120 series and Cisco 7140 series

Cisco IOS Release 12.0(4)XE or a later
release of Cisco IOS Release 12.0 XE
Cisco IOS Release 12.0(5)T or a later release
of Cisco IOS Release 12.0 T

Catalyst 5000 Family Switches

• With Catalyst RSM/VIP2-15(=) or
Catalyst RSM/VIP2-40(=)

Cisco IOS Release 12.0(1) or a later release of
Cisco IOS Release 12.0

Caution The VIP2 requires that the host Cisco 7000 series router have the RSP7000 and RSP7000CI

installed. The VIP2 does not operate properly with the Route Processor (RP), Switch Processor (SP), or
Silicon Switch Processor (SSP) installed in the host Cisco series router.
The PA-E3 is considered a high-bandwidth port adapter; therefore at a minimum, Cisco recommends
that the PA-E3 be installed on the VIP2-15 or Catalyst RSM/VIP2-15 motherboard (with 1 MB of
SRAM and 8 MB of DRAM). Installation of the PA-E3 on the VIP2-10 (with 512 KB of SRAM and
8 MB of DRAM) is not recommended.

2-2

PA-E3 Serial Port Adapter Installation and Configuration

Safety Guidelines

Note The VIP2 and Catalyst RSM/VIP2 supports online insertion and removal (OIR), but

individual port adapters do not. To replace the port adapters, you must first remove the VIP2 or
Catalyst RSM/VIP2 from the chassis and then replace port adapters as required. OIR is supported
for port adapters in the Cisco 7100 series, Cisco 7200 series, and Cisco uBR7200 series routers.
Port adapters have a handle attached, but this handle is occasionally not shown in illustrations in this
publication to allow a full view of detail on the port adapter’s faceplate.

In the Cisco 7000 series, Cisco 7100 series, Cisco 7500 series, Cisco uBR7200 series routers and
Catalyst 5000 family switches, there are no restrictions on slot locations or sequence; however, in
the Cisco 7200 series routers, there are specific configuration guidelines that must be observed for
high-bandwidth port adapters.
For specific Cisco 7200 series hardware configuration information and for memory configuration
guidelines for Cisco 7200 series routers, refer to the document Cisco 7200 Series Port Adapter
Hardware Configuration Guidelines, which shipped with your Cisco 7200 series chassis and is also
available on the Cisco Connection Documentation, Enterprise Series CD-ROM.
To determine if your Cisco 7000 series, Cisco 7100 series, Cisco 7500 series, Cisco 7200 series, or
Cisco uBR7200 series router, or the Catalyst RSM/VIP2 is compatible with the PA-E3, use the show
version command to display the current hardware configuration of the router, including the system
software version that is currently loaded and running.
You can check the version of the default ROM image by removing the board and checking the ROM
labels, or by configuring the interface or system software to boot from ROM, restarting the system,
and using the show version command to check the running version.
To display the current system software version, use the show version command. In the following
example, the running system software is Release 11.1(16)CA.
Router> show version
Cisco Internetwork Operating System Software
IOS (tm) GS Software, Version 11.1(16)CA
Synced to mainline version: 11.1(10.5)
Copyright (c) 1986-1997 by cisco Systems, Inc.
Compiled Thu 22-May-97 14:32

If your system lacks the required system software and microcode, contact a customer service
representative for upgrade information.

Safety Guidelines
The following are safety guidelines that you should follow when working with any equipment that
connects to electrical power or telephone wiring.
Warning This warning symbol 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 the Regulatory Compliance and Safety Information document that accompanied this device.
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

Preparing for Installation 2-3

Safety Guidelines

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 varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan.

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

Körperverletzung führen könnte. Bevor Sie mit 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
relativi ai circuiti elettrici ed essere al corrente delle pratiche 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
elektriske kretser innebærer, samt gjøre deg kjent med vanlig praksis 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.

2-4

PA-E3 Serial Port Adapter Installation and Configuration

Electrical Equipment Guidelines

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.

Electrical Equipment Guidelines
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 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.

Do not work alone when potentially hazardous conditions exist and never assume that power has
been disconnected from a circuit; always check.

Telephone Wiring Guidelines
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 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.

Never install telephone jacks in wet locations unless the jack is specifically designed for wet
locations.

Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are
improperly handled, results in complete or intermittent failures. Port adapters and processor modules
consist of printed circuit boards that are fixed in metal carriers. Electromagnetic interference (EMI)
shielding and connectors are integral components of the carrier. Although the metal carrier helps to
protect the board from ESD, use a preventive antistatic strap during handling.
The following are guidelines for preventing ESD damage:

•
•
•

Always use an ESD wrist or ankle strap and ensure that it makes good skin contact.

•

When removing a component, use any available ejector levers or captive installation screws to
release the bus connectors from the backplane or midplane.

Connect the equipment end of the strap to an unfinished chassis surface.
When installing a component, use any available ejector levers or captive installation screws to
properly seat the bus connectors in the backplane or midplane. These devices prevent accidental
removal, provide proper grounding for the system, and help to ensure that bus connectors are
properly seated.

Preparing for Installation 2-5

Compliance Information

•

Handle carriers by available handles or edges only; avoid touching the printed circuit boards or
connectors.

•

Place a removed component board-side-up on an antistatic surface or in a static shielding
container. If you plan to return the component to the factory, immediately place it in a static
shielding container.

•

Avoid contact between the printed circuit boards and clothing. The wrist strap only protects
components from ESD voltages on the body; ESD voltages on clothing can still cause damage.

•

Never attempt to remove the printed circuit board from the metal carrier.

Caution For safety, periodically check the resistance value of the antistatic strap. The measurement should

be between 1 and 10 megohms (Mohm).

Compliance Information
The following sections provide compliance information that applies to the FCC and the PA-E3 serial
port adapter, which has been designed to meet these requirements. Modifications to this product that
are not authorized by Cisco Systems, Inc., could void the various approvals and negate your
authority to operate the product.

BABT Compliance
The BABT607116 marking on the PA-E3 signifies that it meets United Kingdom directive 607116
and has been designed to BABT standards. The BABT label is located on the top of the PA-E3;
Figure 2-1 shows the BABT label for the PA-E3.
BABT Label for PA-E3 Serial Port Adapter

607116

H10017

Figure 2-1

ITI-T Compliance
ITI-T recommendation G.823 specifies that it is important to restrict jitter gain. Figure 4 of G.823
shows a typical jitter transfer characteristic. (Note that small jitter gain is allowed.) British Standard
6328: Section 8.1 1990 gives the allowable gain as 0.5 dB. The PA-E3’s line mode clocking complies
with these sections.

TBR24 Compliance
When the PA-E3 is in line clocking mode, jitter is not attenuated, and any jitter received is transferred
to the line. If input jitter exceeds the limits of TBR24, then output jitter will not meet TBR24 transfer
specifications. Line clocking mode is intended for use only where the connection involves a single
hop, and where clock timing will not be transferred to other network equipment.
When not in line clocking mode, the PA-E3 complies with TBR24 standards.

2-6

PA-E3 Serial Port Adapter Installation and Configuration

C H A P TER

VIP2 and the PA-E3
This chapter provides information on the PA-E3 serial port adapter and its use on the VIP2 in
Cisco 7000 series and Cisco 7500 series routers. This chapter contains the following sections:

•
•
•

Overview, page 3-1
Removing a Port Adapter, page 3-4
Installing a Port Adapter, page 3-5

Overview
The PA-E3 is used on the VIP2 in Cisco 7000 series and Cisco 7500 series routers and can be
installed in either port adapter slot 0 or slot 1 on the VIP2 motherboard.
Note You can have up to three E3 serial interfaces on a VIP2 motherboard. Cisco recommends a

configuration of one PA-E3 (with one E3 serial interface) and one PA-2E3 (with two serial
interfaces) for a total of three E3 serial interfaces per VIP2.

Figure 3-1 shows two one-port PA-E3 port adapters installed in port adapter slot 0 and slot 1, on a
VIP2-15 or VIP2-40.

VIP2 and the PA-E3 3-1

Overview

Figure 3-1

VIP2-15 or VIP2-40 with One-Port PA-E3 Port Adapters in Port Adapter Slots 0
and 1
CPU

Bus connector

Boot ROM

U6
SRAM
DIMM U5

DRAM
SIMMs

PA-E3 in port
adapter slot 0

E3 SERIAL

AIS

T3 SERIAL

AIS

Port adapter
handles not
shown

H10611

PA-E3 in port
adapter slot 1

Note Port adapters have a handle attached, but this handle is not shown to allow a full view of detail

on each port adapter’s faceplate.

3-2

PA-E3 Serial Port Adapter Installation and Configuration

Overview

Figure 3-2 shows two one-port E3 port adapters installed in port adapter slots 0 and 1, on a VIP2-50.
Figure 3-2

VIP2-50 with One-Port PA-E3 Port Adapters in Port Adapter Slots 0 and 1
CPU

Boot ROM
Bus connector

SRAM
daughter
card

SDRAM DIMM

E3 SERIAL

AIS

T3 SERIAL

AIS

H11248

PA-E3 in
port adapter
slot 1

PA-E3 in
port adapter
slot 0

Port adapter handles not shown
LK

Depending on the circumstances, you might need to install a new port adapter on a VIP2
motherboard or replace a failed port adapter in the field. In either case, you need a number 1 Phillips
screwdriver, an antistatic mat on which you can place the removed interface processor, and an
antistatic container in which you can place a failed port adapter for shipment back to the factory.
Note The PA-E3 can be installed on a VIP2-15, VIP2-20, VIP2-40, or VIP2-50 motherboard;

however, installation on the VIP2-10 is not recommended.

Caution To prevent system problems, do not remove port adapters from the VIP2 motherboard or

attempt to install other port adapters on the VIP2 motherboard while the system is operating. To
install or replace port adapters, first remove the VIP2 from its interface processor slot.

Note Each port adapter circuit board is mounted to a metal carrier and is sensitive to ESD damage.

The following procedures should be performed by a Cisco-certified service provider only. The VIP2
supports online insertion and removal (OIR), but individual port adapters do not. To replace
port adapters, you must first remove the VIP2 from the chassis and then install or replace port
adapters as required. If a blank port adapter is installed on the VIP2 in which you want to install a
new port adapter, you must first remove the VIP2 from the chassis and then remove the blank
port adapter.

VIP2 and the PA-E3 3-3

Removing a Port Adapter

When only one port adapter is installed on a VIP2, a blank port adapter must fill the empty slot. This
allows the VIP2 and router chassis to conform to electromagnetic interference (EMI) emissions
requirements, and encourages air to flow through the chassis properly. If you plan to install a new
port adapter, you must first remove the blank port adapter.

Removing a Port Adapter
Following is the standard procedure for removing any type of port adapter on the VIP2:
Step 1

Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.
Note If you want to install a new port adapter on a VIP2 with a single port adapter, you

must first remove the blank port adapter from the port adapter slot in which you want to
install the new port adapter.

Step 2

For a new port adapter installation or a port adapter replacement, disconnect any interface
cables from the ports on the front of the port adapter, although this is not required. You
can remove VIP2s with cables attached; however, we do not recommend it.

Step 3

To remove the VIP2 from the chassis, follow the steps in the section “Removing a VIP2”
in the configuration note Second-Generation Versatile Interface Processor (VIP2)
Installation and Configuration, which shipped with your VIP2. Place the removed VIP2
on an antistatic mat.

Step 4

Locate the screw at the rear of the port adapter (or blank port adapter) to be replaced.
(See Figure 3-3.) This screw secures the port adapter (or blank port adapter) to its slot.
Location of Port Adapter Screw—Partial Port Adapter View

H3148

Figure 3-3

Screw

3-4

Step 5

Remove the screw that secures the port adapter (or blank port adapter).

Step 6

With the screw removed, grasp the handle on the front of the port adapter (or blank
port adapter) and carefully pull it out of its slot, away from the edge connector at the rear
of the slot. (See Figure 3-4.)

PA-E3 Serial Port Adapter Installation and Configuration

Installing a Port Adapter

Pulling a Port Adapter Out of a Slot—Partial Port Adapter View

H3149

Figure 3-4

Step 7

If you removed a port adapter, place it in an antistatic container for safe storage or
shipment back to the factory. If you removed a blank port adapter, no special handling is
required; however, store the blank port adapter for potential future use.

This completes the procedure for removing a new port adapter on a VIP2.

Installing a Port Adapter
Following is the standard procedure for replacing a port adapter on the VIP2:
Step 1

Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.

Step 2

Remove the new port adapter from its antistatic container and position it at the opening
of the slot.

Step 3

Carefully align the port adapter carrier between the upper and the lower edges of the port
adapter slot, as shown in Figure 3-5.

VIP2 and the PA-E3 3-5

Installing a Port Adapter

Aligning a Port Adapter in a Port Adapter Slot

H3150

Figure 3-5

Carrier

Upper edge
Lower edge

Caution To prevent jamming the carrier between the upper and lower edges of the port adapter slot

and to ensure that the edge connector at the rear of the port adapter mates with the connector at the
rear of the port adapter slot, make certain that the leading edges of the carrier are between the upper
and lower slot edges, as shown in the cutaway in Figure 3-5.
Caution To ensure a positive ground attachment between the port adapter carrier and the VIP2

motherboard and port adapter slot, and to ensure that the connectors at the rear of the port adapter
and slot mate properly, position the carrier between the upper and lower slot edges, as shown in
Figure 3-5.
Step 4

3-6

Carefully slide the new port adapter into the port adapter slot until the connector on the
port adapter is completely seated in the connector on the motherboard. (See Figure 3-6.)

PA-E3 Serial Port Adapter Installation and Configuration

Installing a Port Adapter

Port Adapter Installed in a Port Adapter Slot—Partial Port Adapter View

H3152

Figure 3-6

Step 5

Replace the screw in the rear of the port adapter slot. (See Figure 3-3 for its location.) Do
not overtighten this screw.

Step 6

To reinstall the VIP2 in the system, follow the steps in the section “Installing a VIP2” in
the configuration note Second-Generation Versatile Interface Processor (VIP2)
Installation and Configuration, which shipped with your VIP2.

Step 7

If the interface cables have been disconnected, reconnect the interface cables to the port
adapters.

This completes the procedure for installing a port adapter on a VIP2. Proceed to Chapter 8,
“Configuring the PA-E3 Interfaces,” for information on how to configure your port adapter
interfaces.

VIP2 and the PA-E3 3-7

Installing a Port Adapter

3-8

PA-E3 Serial Port Adapter Installation and Configuration

C H A P TER

Catalyst RSM/VIP2 and the PA-E3
This chapter provides information on the PA-E3 serial port adapter and its use on the
Catalyst RSM/VIP2 in the Catalyst 5000 family switches. This chapter contains the following
sections:

•
•
•

Overview, page 4-1
Removing a Port Adapter, page 4-3
Installing a Port Adapter, page 4-4

Overview
The PA-E3 is used on the Catalyst RSM/VIP2 in the Catalyst 5000 family switches and can be
installed in either port adapter slot 0 or slot 1 on the Catalyst RSM/VIP2 motherboard.
Note You can have up to three E3 serial interfaces on a Catalyst RSM/VIP2 motherboard. Cisco

recommends a configuration of one PA-E3 (with one E3 serial interface) and one PA-2E3 (with two
serial interfaces) for a total of three E3 serial interfaces.

Figure 4-1 shows two one-port PA-E3 port adapters installed in port adapter slot 0 and slot 1, on a
Catalyst RSM/VIP2-40.

Catalyst RSM/VIP2 and the PA-E3 4-1

Overview

Figure 4-1

Catalyst RSM/VIP2-40 with One-Port PA-E3 Port Adapters in Port Adapter
Slots 0 and 1

Backplane
bus connector

Standoff
mounting
hole

Ribbon cables

Standoff
mounting
holes

Port adapter
securing screw

PA-E3 in port
adapter slot 0

PA-E3 in port
adapter slot 1

E3 SERIAL

AIS

T3 SERIAL

26452

Port adapter
handles not
shown

Note Port adapters have a handle attached, but this handle is not shown in the figure to allow a full

view of detail on each port adapter’s faceplate.

Depending on the circumstances, you might need to install a new port adapter on a
Catalyst RSM/VIP2 motherboard or replace a failed port adapter in the field. In either case, you need
the following items:

•
•
•

Number 1 Phillips screwdriver
Antistatic mat on which you can place the removed interface processor
Antistatic container in which you can place a failed port adapter for shipment back to the factory

Caution To prevent system problems, do not remove port adapters from the Catalyst RSM/VIP2

motherboard or attempt to install other port adapters on the Catalyst RSM/VIP2 motherboard while
the system is operating. To install or replace port adapters, first remove the Catalyst RSM/VIP2 from
its slot.

Note Each port adapter circuit board is mounted to a metal carrier and is sensitive to ESD damage.

The following procedures should be performed by a Cisco-certified service provider only. The
Catalyst RSM/VIP2 supports online insertion and removal (OIR), but individual port adapters do
not. To replace port adapters, you must first remove the Catalyst RSM/VIP2 from the chassis and
then install or replace port adapters as required. If a blank port adapter is installed on the
Catalyst RSM/VIP2 in which you want to install a new port adapter, you must first remove the
Catalyst RSM/VIP2 from the chassis and then remove the blank port adapter.
4-2

PA-E3 Serial Port Adapter Installation and Configuration

Removing a Port Adapter

When only one port adapter is installed on a Catalyst RSM/VIP2, a blank port adapter must fill the
empty slot to conform to electromagnetic interference (EMI) emissions requirements and to allow
air to flow through the chassis properly. If you plan to install a new port adapter, you must first
remove the blank port adapter.

Removing a Port Adapter
The following is the standard procedure for removing any type of port adapter on the
Catalyst RSM/VIP2:
Step 1

Attach an antistatic wrist strap between you and an unfinished chassis surface.
Note If you want to install a new port adapter on a Catalyst RSM/VIP2 with a single port

adapter, you must first remove the blank port adapter from the port adapter slot in which
you want to install the new port adapter.

Step 2

For a new port adapter installation or a port adapter replacement, disconnect any interface
cables from the ports on the front of the port adapter, although this is not required. You
can remove a Catalyst RSM/VIP2 with cables attached; however, we do not recommend
this action.

Step 3

To remove the Catalyst RSM/VIP2 from the chassis, follow the steps in the Route Switch
Module Catalyst VIP2-15 and VIP2-40 Installation and Configuration Note (Document
Number 78-4780-01), which shipped with your Catalyst RSM/VIP2.

Step 4

Place the removed Catalyst RSM/VIP2 on an antistatic mat.

Step 5

Locate the screw at the rear of the port adapter (or blank port adapter) to be replaced.
(See Figure 4-2.) This screw secures the port adapter (or blank port adapter) to its slot.
Location of Port Adapter Screw—Partial Port Adapter View

H3148

Figure 4-2

Screw

Step 6

Remove the screw that secures the port adapter (or blank port adapter).

Step 7

Catalyst RSM/VIP2 and the PA-E3 4-3

Installing a Port Adapter

Pulling a Port Adapter Out of a Slot—Partial Port Adapter View

H3149

Figure 4-3

Step 8

This completes the procedure for removing a new port adapter on a Catalyst RSM/VIP2.

Installing a Port Adapter
The following is the standard procedure for replacing a port adapter on the Catalyst RSM/VIP2:

4-4

Step 1

Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.

Step 2

Remove the new port adapter from its antistatic container and position it at the opening
of the slot.

Step 3

Carefully align the port adapter carrier between the upper and the lower edges of the port
adapter slot, as shown in Figure 4-4.

PA-E3 Serial Port Adapter Installation and Configuration

Installing a Port Adapter

Aligning a Port Adapter in a Port Adapter Slot

H3150

Figure 4-4

Carrier

Upper edge
Lower edge

Caution To prevent jamming the carrier between the upper and lower edges of the port adapter slot

and to ensure that the edge connector at the rear of the port adapter mates with the connector at the
rear of the port adapter slot, make certain that the leading edges of the carrier are between the upper
and lower slot edges, as shown in the cutaway in Figure 4-5.
Caution To ensure a positive ground attachment between the port adapter carrier and the

Catalyst RSM/VIP2 motherboard and port adapter slot, and to ensure that the connectors at the rear
of the port adapter and slot mate properly, position the carrier between the upper and lower slot
edges, as shown in Figure 4-5.
Step 4

Carefully slide the new port adapter into the port adapter slot until the connector on the
port adapter is completely seated in the connector on the motherboard. (See Figure 4-5.)

Catalyst RSM/VIP2 and the PA-E3 4-5

Installing a Port Adapter

Port Adapter Installed in a Port Adapter Slot—Partial Port Adapter View

H3152

Figure 4-5

Step 5

Replace the screw in the rear of the port adapter slot. (See Figure 4-2 for its location.) Do
not overtighten this screw.

Step 6

To reinstall the Catalyst RSM/VIP2 in the system, follow the steps in the Route Switch
Module Catalyst VIP2-15 and VIP2-40 Installation and Configuration Note (Document
Number 78-4780-01), which shipped with your Catalyst RSM/VIP2.

Step 7

If the interface cables have been disconnected, reconnect the interface cables to the port
adapters.

This completes the procedure for installing a port adapter on a Catalyst RSM/VIP2. Proceed to
Chapter 8, “Configuring the PA-E3 Interfaces,” for information on how to configure your port
adapter interfaces.

4-6

PA-E3 Serial Port Adapter Installation and Configuration

C H A P TER

Cisco 7200 Series and the PA-E3
This chapter provides information on the PA-E3 serial port adapter and its use in Cisco 7200 series
routers. This chapter contains the following sections:

•
•
•

Overview, page 5-1
Removing a Port Adapter, page 5-2
Installing a Port Adapter, page 5-3

Overview
The PA-E3 can be installed in any available port adapter slot in Cisco 7200 series routers (which
consist of the two-slot Cisco 7202, four-slot Cisco 7204 and Cisco 7204VXR, and the six-slot
Cisco 7206 and Cisco 7206VXR). Figure 5-1 shows a one-port PA-E3 installed in port adapter slot 3
of a Cisco 7206.
Figure 5-1

Cisco 7206 with a PA-E3 in Port Adapter Slot 3

TOKEN RING

RJ4

LIN

MII

RX
4

RX
3

RX
2

ETHERNET-10BFL

LE
AB

LK
FE
RF
RL

AIS
OO
F

LE
AB

EN
EN

FAST SERIAL

II
M
FE

0
T

T
EC

IA
C
M
PC

FAST ETHERNET INPUT/OUTPUT CONTROLLER
5

J-4

II
M N
E

J-4
R EN

W
J-4
R INK O P K
1 O
L

H10608

PA-E3
port
adapter

FAST ETHERNET
E3 SERIAL

Depending on your circumstances, you might need to install a new port adapter in a Cisco 7200
series router or replace a failed port adapter in the field. In either case, no tools are necessary; all port
adapters available for the Cisco 7200 series connect directly to the router midplane and are locked
into position by a port adapter lever. When removing and replacing a port adapter, you need an
antistatic mat onto which you can place a removed port adapter and an antistatic container into which
you can place a failed port adapter for shipment back to the factory.

Cisco 7200 Series and the PA-E3 5-1

Removing a Port Adapter

Note The Cisco 7200 series routers support online insertion and removal(OIR); therefore, you do

not have to power down the Cisco 7200 series routers when removing and replacing a port adapter.

When a port adapter slot is not in use, a blank port adapter must fill the empty slot to allow the router
to conform to EMI emissions requirements and to allow proper airflow across the port adapters. If
you plan to install a new port adapter in a slot that is not in use, you must first remove a blank port
adapter.

Removing a Port Adapter
Following is the procedure for removing a port adapter from a Cisco 7200 series router:
Step 1

Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.

Step 2

Place the port adapter lever for the desired port adapter slot in the unlocked position. The
port adapter lever remains in the unlocked position. (See Figure 5-2.)

Figure 5-2

Placing the Port Adapter Lever in the Unlocked Position—Cisco 7206 Shown

TOKEN RING

FAST ETHERNET

RJ4

LIN

MII

D
LE
AB
EN

3
2

LINK
1
0

ETHERNET 10BT

ET
ES

D
LE
AB

O PW
K R

R
L J4
IN
K

R
E J4
N 5

M
E II
N

0
T

H6596

45
R

J-

FAST ETHERNET INPUT/OUTPUT CONTROLLER

M
FE

FAST SERIAL

Port adapter
handle

Note: This adapter removal
applies to any port or service
adapter.

Step 3

Port adapter
lever (unlocked
position)

Grasp the handle on the port adapter and pull the port adapter from the midplane, about
halfway out of its slot. If you are removing a blank port adapter, pull the blank
port adapter completely out of the chassis slot.
Note As you disengage the port adapter from the router midplane, OIR administratively

shuts down all active interfaces on the port adapter.

5-2

Step 4

With the port adapter halfway out of the slot, disconnect all cables from the port adapter.

Step 5

After disconnecting the cables, pull the port adapter from its chassis slot.

PA-E3 Serial Port Adapter Installation and Configuration

Installing a Port Adapter

Caution Always handle the port adapter by the carrier edges and handle; never touch the port adapter’s

components or connector pins. (See Figure 5-3.)
Figure 5-3

Handling a Port Adapter
Metal carrier

H6420

Printed circuit board

Step 6

Place the port adapter on an antistatic surface with its components facing upward, or in a
static shielding bag. If the port adapter will be returned to the factory, immediately place
it in a static shielding bag.

This completes the procedure for removing a port adapter from a Cisco 7200 series router.

Installing a Port Adapter
Following is the procedure for installing a new port adapter in a Cisco 7200 series router:
Step 1

Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.

Step 2

Remove the new port adapter from its antistatic container and position it at the opening
of the slot. (See Figure 5-4.)

Step 3

Use both hands to grasp the port adapter by its metal carrier edges and position the port
adapter so that its components face downward. (See Figure 5-3.)

Step 4

Align the left and the right edge of the port adapter metal carrier between the guides in
the port adapter slot. (See Figure 5-4.)
Aligning the Port Adapter Metal Carrier Between the Slot
Guides—Cisco 7206 Shown

TOKEN RING

5
FAST ETHERNET

RJ4

LIN

MII

D
AB
LE
EN

3
2

LINK
1
0

EN
AB
LE
D

ETHERNET 10BT

ES
ET

45
R
J-

C
PU

M
FE

LE
D

SL
O

1
FAST ETHERNET INPUT/OUTPUT CONTROLLER

O PW
K R

M
E II
N

R
E J4
N 5

R
L J4
IN 5
K

0
T

C
IA

Slot
guide

H6597

Figure 5-4

Note: This adapter alignment
applies to any port or service
adapter.

Cisco 7200 Series and the PA-E3 5-3

Installing a Port Adapter

Step 5

With the metal carrier aligned in the slot guides, gently slide the port adapter halfway into
the slot.

Caution Do not slide the port adapter all the way into the slot until you have connected all required cables.

Trying to do so disrupts normal operation of the router.
Step 6

With the port adapter halfway in the slot, connect all required cables to the port adapter.

Step 7

After connecting all required cables, carefully slide the port adapter all the way into the
slot until the port adapter is seated in the router midplane.

Step 8

After seating the port adapter in the router midplane, move the port adapter lever to the
locked position. Figure 5-5 shows the port adapter lever in the locked position.
Note If the port adapter lever does not move to the locked position, the port adapter is

not completely seated in the midplane. Carefully pull the port adapter halfway out of the
slot, reinsert it, and move the port adapter lever to the locked position.

Figure 5-5

Placing the Port Adapter Lever in the Locked Position—Cisco 7206 Shown

TOKEN RING

FAST ETHERNET

RJ4

LIN

MII

D
LE
AB
EN

3
2

LINK
1
0

ETHERNET 10BT

ET
ES

D
LE
AB

O PW
K R

R
E J4
N 5

R
L J4
IN
K

M
E II
N

0
T

H6747

45
R

J-

FAST ETHERNET INPUT/OUTPUT CONTROLLER

M
FE

FAST SERIAL

Port adapter
handle

Note: This adapter installation
applies to any port or service
adapter.

Port adapter
lever (locked
position)

This completes the procedure for installing a new port adapter in a Cisco 7200 series router. Proceed
to Chapter 8, “Configuring the PA-E3 Interfaces,” for information on how to configure your
port adapter interfaces.

5-4

PA-E3 Serial Port Adapter Installation and Configuration

C H A P TER

Cisco uBR7200 Series and the PA-E3
This chapter provides information on the PA-E3 serial port adapter and its use in Cisco uBR7200
series universal broadband routers. This chapter includes the following sections:

•
•
•

Overview, page 6-1
Removing a Port Adapter, page 6-2
Installing a Port Adapter, page 6-4

Overview
The PA-E3 can be installed in any of the available port adapter slots in Cisco uBR7200 series routers.
Figure 6-1 shows a PA-E3 installed in port adapter slot 2 of a Cisco uBR7200 series router.

C
LK
FE
R
R F
L

15259

AIS
O
O
F
LL

VR
C

E3 SERIAL

D
LE
AB

PA-E3
port adapter

Cisco uBR7200 Series with a PA-E3 Port Adapter in Port Adapter Slot 2

Figure 6-1

Depending on the circumstances, you might need to install a new port adapter or replace a failed port
adapter in a Cisco uBR7200 series router. In either case, no tools are necessary; all port adapters
available for the Cisco uBR7200 series routers connect directly to the router midplane and are locked
into position by a port adapter retention clip (Cisco uBR7246) or lever (Cisco uBR7223). When
removing and replacing a port adapter, you need an antistatic mat onto which you can place a
removed port adapter and an antistatic container into which you can place a failed port adapter for
shipment back to the factory.

Cisco uBR7200 Series and the PA-E3 6-1

Removing a Port Adapter

Note The Cisco uBR7200 series routers support online Insertion and Removal (OIR); therefore,

you do not have to power down the router when removing and replacing a PA-E3.

When a port adapter slot is not in use, blank port adapters must fill empty slots to allow the router to
conform to EMI emissions requirements and to allow proper airflow across the port adapters. If you
plan to install a new port adapter in a slot that is not in use, you must first remove the blank
port adapter.

Removing a Port Adapter
Following is the procedure for removing a port adapter from a Cisco uBR7200 series router:
Step 1

Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.

Step 2

Unlock the port adapter retaining mechanism.

•

Figure 6-2

For a Cisco uBR7246, place the port adapter retention clip for the desired port adapter
slot in the unlocked position. The retention clip remains in the unlocked position. (See
Figure 6-2.)
Placing the Port Adapter Retention Clip in the Unlocked
Position—Cisco uBR7246 Shown

H11518

Port adapters

6-2

PA-E3 Serial Port Adapter Installation and Configuration

Port adapter
retention clip in
unlocked position

Removing a Port Adapter

•
Figure 6-3

For a Cisco uBR7223, place the port adapter lever in the unlocked position.
(See Figure 6-3.)
Placing the Port Adapter Lever in the Unlocked
Position—Cisco uBR7223 Shown

Port adapter
lever in unlocked
position

16217

Port adapters

Grasp the handle on the port adapter and pull the port adapter from the router midplane,
about halfway out of its slot. If you are removing a blank port adapter, pull the blank
port adapter completely out of the chassis slot.

Step 3

Note As you disengage the port adapter from the midplane, OIR administratively shuts

down all active interfaces on the port adapter.

Step 4

With the port adapter halfway out of the slot, disconnect all cables from the port adapter.

Step 5

After disconnecting the cables, pull the port adapter from its chassis slot.

Caution Always handle the port adapter by the carrier edges and handle; never touch the

port adapter’s components or connector pins. (See Figure 6-4.)
Figure 6-4

Handling a Port Adapter
Metal carrier

H6420

Printed circuit board

Cisco uBR7200 Series and the PA-E3 6-3

Installing a Port Adapter

Step 6

This completes the procedure for removing a port adapter from a Cisco uBR7200 series router.

Installing a Port Adapter
Following is the procedure for installing a port adapter in a Cisco uBR7200 series router:
Step 1

Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.

Step 2

Use both hands to grasp the port adapter by its metal carrier edges and position the
port adapter so that its components are downward. (See Figure 6-4.)

Step 3

Align the left and the right edge of the port adapter metal carrier between the guides in
the port adapter slot. (See Figure 6-5.)

Figure 6-5

Aligning the Port Adapter Metal Carrier Between the Slot Guides
Metal carrier

PC board

Step 4

H11519

Inside
slot guide

With the metal carrier aligned in the slot guides, gently slide the port adapter halfway into
the slot.

Caution Do not slide the port adapter all the way into the slot until you have connected all required

cables. Trying to do so disrupts normal operation of the router.
Step 5

With the port adapter halfway in the slot, connect all required cables to the port adapter.

Step 6

After connecting the cables, carefully slide the port adapter all the way into the slot until
the port adapter is seated in the router midplane.

Step 7

Secure the port adapter:

•

For a Cisco uBR7246, slide the port adapter retention clip up to the locked position.
See Figure 6-6.

Note If the retention clip does not slide up to the locked position, the port adapter is not

completely seated in the midplane. Carefully pull the port adapter halfway out of the slot,
reinsert it, and slide the retention clip up to the locked position.
6-4

PA-E3 Serial Port Adapter Installation and Configuration

Installing a Port Adapter

Figure 6-6

Placing the Port Adapter Retention Clip in the Locked
Position—Cisco uBR7246 Shown

H11517

Port adapters

•
Figure 6-7

Port adapter
retention clip in
locked position

For a Cisco uBR7223, place the port adapter lever in the locked position. (See
Figure 6-7.)
Placing the Port Adapter Lever in the Locked
Position—Cisco uBR7223 Shown

Port adapter
lever in locked
position

16177

Port adapters

Note If the port adapter lever does not move to the locked position, the port adapter is

not completely seated in the midplane. Carefully pull the port adapter halfway out of the
slot, reinsert it, and move the port adapter lever to the locked position.

This completes the procedure for installing a port adapter in a Cisco uBR7200 series router. Proceed
to Chapter 8, “Configuring the PA-E3 Interfaces,” for information on how to configure your
port adapter interfaces.

Cisco uBR7200 Series and the PA-E3 6-5

Installing a Port Adapter

6-6

PA-E3 Serial Port Adapter Installation and Configuration

C H A P TER

Cisco 7100 Series and the PA-E3
This chapter provides information on the PA-E3 serial port adapter and its use in the Cisco 7100
series routers. This chapter contains the following sections:

•
•
•

Installation Overview, page 7-1
Removing a Port Adapter, page 7-2
Installing a Port Adapter, page 7-3

Installation Overview
The PA-E3 can be installed in port adapter slot 3 in Cisco 7120 series routers and in port adapter slot
4 in Cisco 7140 series routers. Figure 7-1 shows port adapter slot 3 of a Cisco 7120 series router.
Figure 7-2 shows port adapter slot 4 of a Cisco 7140 series router.
Figure 7-1

Cisco 7120 Series Router—Port Adapter Slot 3 Location
Locked

ESD plug

Unlocked

Slot 3

SLOT 0

SLOT 1
PWR

ACT ACT

0
FE 0 / 0

E3
EN

0/1

LNK LNK
0
1

CONS

AUX

SYS
RDY

RX
CEL CAR ALM

7120 - AE3

22133

Cisco 7100 Series and the PA-E3 7-1

Removing a Port Adapter

Figure 7-2

Cisco 7140 Series Router—Port Adapter Slot 4 Location
Locked

Unlocked

ESD plug

Slot 4

AC OK
DC OK
OTF

SLOT 0

SLOT 1
PWR

ACT ACT

0
FE 0 / 0

155 - MM

TX
EN

CEL CAR ALM

FE 0 / 1
RX

LNK LNK
0
1

155 - MM

CONS

AUX

AC OK

SYS
RDY

DC OK
OTF

CEL CAR ALM

7140 - 2MM3

22134

Depending on your circumstances, you might need to install a new port adapter in a Cisco 7100
series router or replace a failed port adapter in the field. All port adapters available for the Cisco 7100
series connect directly to the router and are locked into position by a locking tab with two screws
(see Figure 7-1 or Figure 7-2). You need a number 2 Phillips screwdriver to loosen the screws.
Note Cisco 7100 series routers support online insertion and removal (OIR); therefore, you do not

have to power down the router when removing and replacing a port adapter.

Removing a Port Adapter
Follow these steps to remove a port adapter from a Cisco 7100 series router:
Step 1

Attach an ESD-preventive wrist strap between you and the chassis. (See Figure 7-1 or
Figure 7-2 for the location of the ESD plug.)

Step 2

Use a number 2 Phillips screwdriver to loosen the screws on the locking tab; then slide
the tab down to the unlocked position. (See Figure 7-1 or Figure 7-2.)

Step 3

Grasp the handle on the port adapter and pull the port adapter from the router, about
halfway out of its slot. If you are removing a blank port adapter, pull the blank port
adapter completely out of the chassis slot.
Note As you disengage the port adapter from the router, OIR administratively shuts

down all active interfaces on the port adapter.

Step 4

With the port adapter halfway out of the slot, disconnect all cables from the port adapter.

Step 5

After disconnecting the cables, pull the port adapter from its chassis slot.

Caution Always handle the port adapter by the carrier edges and handle; never touch the port adapter’s

components or connector pins. (See Figure 7-3.)

7-2

PA-E3 Serial Port Adapter Installation and Configuration

Installing a Port Adapter

Figure 7-3

Handling a Port Adapter
Metal carrier

H6420

Printed circuit board

Step 6

Step 7

Install a blank port adapter or replacement port adapter to maintain proper flow of cooling
air across the internal components. For procedures on how to install a port adapter, see
the next section, “Installing a Port Adapter”.
Note The blank port adapter is available from Cisco Systems as a spare. The blank

port adapter product number is MAS-7100-PABLANK.

This completes the procedure for removing a port adapter from a Cisco 7100 series router.

Installing a Port Adapter
Follow these steps to install a new port adapter in a Cisco 7100 series router:
Step 1

Attach an ESD-preventive wrist strap between you and the chassis. (See Figure 7-1 for
the location of the ESD plug.)

Step 2

Ensure that the locking tab is down in the unlocked position. If it is locked, use a
number 2 Phillips to loosen the screws; then slide the tab down to the unlocked position.
(See Figure 7-1.)

Step 3

Remove the new port adapter from its antistatic container and position it at the opening
of the slot.

Step 4

Use both hands to grasp the port adapter by its metal carrier edges, and position the port
adapter so that its components face downward. (See Figure 7-3.)

Step 5

Align the left and the right edge of the port adapter metal carrier between the guides in
the port adapter slot. (See Figure 7-4.)

Step 6

With the metal carrier aligned in the slot guides, gently slide the port adapter halfway into
the slot.

Caution Do not slide the port adapter all the way into the slot until you have connected all required cables.

Trying to do so disrupts normal operation of the router.

Cisco 7100 Series and the PA-E3 7-3

Installing a Port Adapter

Figure 7-4

Aligning the Single-Width Port Adapter Between the Slot Guides
Guides

RCVR
EN

XMTR

RCLK FERF RL

FE 0 /

22132

AIS OOF LL

Step 7

With the port adapter halfway in the slot, connect all required cables to the port adapter.

Step 8

After connecting all required cables, carefully slide the port adapter all the way into the
slot until the port adapter is seated in the router.

Step 9

After seating the port adapter in the router, slide the locking tab up to the locked position
and tighten the screws. (Figure 7-1 or Figure 7-2 shows the locking tab in the locked
position.)
Note If the port adapter lever is not in the locked position, the port adapter is not

completely seated in the router. Carefully pull the port adapter halfway out of the slot,
reinsert it, and move the port adapter lever to the locked position.

This completes the procedure for installing a new port adapter in a Cisco 7100 series router. Proceed
to Chapter 8, “Configuring the PA-E3 Interfaces,” to connect the necessary cables to your port
adapter.

7-4

PA-E3 Serial Port Adapter Installation and Configuration

C H A P TER

Configuring the PA-E3 Interfaces
To continue your PA-E3 serial port adapter installation, you must configure the E3 interfaces. The
instructions that follow apply to all supported platforms. Minor differences between the platforms
are noted. This chapter contains the following sections:

•
•
•
•
•
•
•

Using the EXEC Command Interpreter, page 8-1
Identifying Port Adapter Slot and PA-E3 Interface Port Numbers, page 8-2
Performing a Basic Configuration, page 8-7
Configuration Example, page 8-8
Customizing the PA-E3, page 8-8
Configuring Cyclic Redundancy Checks, page 8-10
Checking the Configuration, page 8-11

If you installed a new PA-E3 or if you want to change the configuration of an existing interface, you
must enter configuration mode using the configure command. If you replaced a PA-E3 that was
previously configured, the system recognizes the new PA-E3 interfaces and brings each of them up
in their existing configuration.
After you verify that the new PA-E3 is installed correctly (the enabled LED goes on), use the
privileged-level configure command to configure the new interfaces. You will need the following
information for your configuration:

•
•
•
•

Protocols you plan to route on each new interface
Internet Protocol (IP) addresses if you are configuring the interfaces for IP routing
Plan to use bridging or not on the new interfaces
Timing source for each new interface and clock speeds for external timing

For a summary of the configuration options available and instructions for configuring interfaces on
the PA-E3, refer to the appropriate configuration publications listed in the “Related Documentation”
section on page vi.

Using the EXEC Command Interpreter
You modify the configuration of your router through the software command interpreter called the
EXEC (also called enable mode). You must enter the privileged level of the EXEC command
interpreter with the enable command before you can use the configure command to configure a new
interface or to change the existing configuration of an interface. The system prompts you for a
password if one is set.
Configuring the PA-E3 Interfaces 8-1

Identifying Port Adapter Slot and PA-E3 Interface Port Numbers

The system prompt for the privileged level ends with a pound sign (#) instead of an angle bracket
(>). At the console terminal, use the following procedure to enter the privileged level:
Step 1

At the user-level EXEC prompt, enter the enable command. The EXEC prompts you for
a privileged-level password as follows:
Router> enable
Password:

Step 2

Enter the password (the password is case-sensitive). For security purposes, the password
is not displayed.

Step 3

When you enter the correct password, the system displays the privileged-level system
prompt (#):
Router#

Proceed to the following section to configure the new interfaces.

Identifying Port Adapter Slot and PA-E3 Interface Port Numbers
This section describes how to identify port adapter slot and PA-E3 interface port numbers for
Cisco 7200 series routers, Cisco 7100 series routers, Cisco uBR7200 series routers, and the VIP2.
You can identify interface ports by physically checking the port location on the back of the router or
by using software commands to display information about a specific interface or all interfaces in the
router.
The PA-E3 can be installed in the following slots on the hardware platforms described in this
document:

•
•
•

VIP2—Port adapter slot 0 and slot 1

•

Cisco 7200 series routers—Port adapter slot 1 and slot 2 in a Cisco 7202; port adapter slot 1
through slot 4 in a Cisco 7204 and Cisco 7204VXR; port adapter slot 1 through slot 6 in a
Cisco 7206 and Cisco 7206VXR

•

Cisco uBR7200 series—Port adapter slot 1 and slot 2 in a Cisco uBR7246 and port adapter slot 1
in a Cisco uBR7223

Catalyst RSM/VIP2—Port adapter slot 0 and slot 1
Cisco 7100 series routers—Port adapter slot 3 in a Cisco 7120 series router and port adapter
slot 4 in a Cisco 7140 series router

Port adapters have a handle attached, but this handle is occasionally not shown in this document to
allow a full view of detail on the port adapter’s faceplate.

Cisco 7200 Series and Cisco uBR7200 Series Ports
Physical port addresses specify the actual physical location of each interface port on a Cisco 7200
series router (see Figure 8-1) or a Cisco uBR7200 series router (see Figure 8-2). This address is
composed of a two-part number in the format port adapter slot number/interface port number, as
follows:

•
•
8-2

The first number identifies the chassis slot in which the PA-E3 is installed.
The second number identifies the interface port on each PA-E3; the interface port is always
numbered as interface 0 for the one-port PA-E3 and 0 or 1 for the two-port PA-2E3.

PA-E3 Serial Port Adapter Installation and Configuration

Cisco 7200 Series and Cisco uBR7200 Series Ports

Interface ports maintain the same address regardless of whether other port adapters are installed or
removed from the slot. However, when you move a port adapter to a different slot, the first number
in the address changes to reflect the new chassis slot number.
In Cisco 7200 series routers, port adapter slots are numbered from the lower left to the upper right,
beginning with port adapter slot 1 and continuing through port adapter slot 2 for the Cisco 7202,
slot 4 for the Cisco 7204 and Cisco 7204VXR, and slot 6 for the Cisco 7206 and Cisco 7206VXR.
Port adapter slot 0 is reserved for the optional Fast Ethernet port on the I/O controller if present.
Figure 8-1 shows the port adapter slots and interface ports of a Cisco 7206. The individual interface
port numbers always begin with 0. The number of additional ports depends on the number of ports
on a port adapter.
Note The I/O controller is available with or without a Fast Ethernet port. You can install both I/O

controller types in all Cisco 7200 series routers; however, when you install an I/O controller with a
Fast Ethernet port in a Cisco 7202, the system software automatically disables the port.

For example, the serial port on a one-port PA-E3 in port adapter slot 3 has the address 3/0.
(See Figure 8-1.) If the PA-E3 is in port adapter slot 1, this same interface port is numbered 1/0. The
serial ports on a two-port PA-2E3 in port adapter slot 3 have the addresses 3/0 and 3/1.
Note The PA-E3 is considered a high-bandwidth port adapter; you must observe specific

configuration guidelines. Refer to the publication Cisco 7200 Series Port Adapter Hardware
Configuration Guidelines, which shipped with your Cisco 7200 series chassis and is also available
on the Cisco Connection Documentation, Enterprise Series CD-ROM.

Figure 8-1

Cisco 7206 Serial Port Number Example

TOKEN RING

K
LIN

MII

RX
4

RX
3

RX
2

II
M
FE

FAST ETHERNET INPUT/OUTPUT CONTROLLER
5

J-4

0
T

T
EC

IA
C
M
PC

M N
E

5
J-4
R EN

R
5
W
J-4
R INK O P K
1 O
L

H10609

RJ4

LE
AB

LK
FE
RF
RL

AIS

LE
D
AB

ETHERNET-10BFL

FAST SERIAL
TD

FAST ETHERNET
E3 SERIAL

PA-E3 port adapter
(port number 3/0)

Figure 8-2 shows the interface ports of a PA-E3 in slot 2 of a Cisco uBR7200 series router. The port
adapter slots are numbered slot 1 and slot 2 for the Cisco uBR7246 and slot 1 for the Cisco uBR7223
(slot 0 is always reserved for the Fast Ethernet port on the I/O controller if present). The individual
interface port numbers always begin with 0. The number of additional ports depends on the number
of ports on a port adapter. Port adapters can occupy any port adapter slot; there are no restrictions.
For example, the serial port on a one-port PA-E3 in port adapter slot 1 has the address 1/0.
(See Figure 8-2.) If the PA-E3 is in port adapter slot 2, this same interface port is numbered 2/0. The
serial ports on a two-port PA-2E3 in port adapter slot 2 have the addresses 2/0 and 2/1.
Configuring the PA-E3 Interfaces 8-3

Identifying Port Adapter Slot and PA-E3 Interface Port Numbers

R
C
LK
FE
R
R F
L

VR
C

15260

AIS
O
O
F
LL

E3 SERIAL

AB
LE
D

PA-E3
port adapter
(port number 1/0)

PA-E3 Interface Port Address Example—Cisco uBR7246 Shown

Figure 8-2

You can identify interface ports by physically checking the port adapter/interface port location on
the back of the router or by using software commands to display information about a specific
interface or all interfaces in the router.

VIP2 Ports
In the router, physical port addresses specify the actual physical location of each interface port on
the router interface processor end. (See Figure 8-3.) Each address is composed of a three-part
number in the format interface processor slot number/port adapter number/interface port number,
as follows:

•

The first number identifies the chassis slot in which the VIP2 is installed (as shown in the sample
system in Figure 8-3).

•
•

The second number identifies the physical port adapter slot on the VIP2, and is either 0 or 1.
The third number identifies the interface port on each E3 serial port adapter, which is always
numbered as interface 0 for the one-port PA-E3 and 0 or 1 for the two-port PA-2E3.

Note Although the processor slots in the 7-slot Cisco 7000 and Cisco 7507 and 13-slot Cisco 7513

are vertically oriented and the slots in the 5-slot Cisco 7010 and Cisco 7505 are horizontally
oriented, all models use the same method for slot and port numbering.

Interface ports on the VIP2 maintain the same address regardless of whether other interface
processors are installed or removed. However, when you move a VIP2 to a different slot, the first
number in the address changes to reflect the new chassis slot number.
Figure 8-3 shows the port adapter slots and interface ports of a sample Cisco 7505 system. On the
VIP2, the first port adapter slot number is always 0. The second port adapter slot number is always 1.
The individual interface port numbers always begin with 0. The number of additional ports depends
on the number of ports on a port adapter.
For example, the serial port on a one-port PA-E3 in the first port adapter slot in chassis slot 3 is
numbered 3/0/0. (See Figure 8-3.) If the PA-E3 is in port adapter slot 1, this same port is numbered
3/1/0. The serial ports on a two-port PA-2E3 in the first port adapter slot in chassis slot 3 are
numbered 3/0/0 and 3/0/1.
Port adapters can occupy either port adapter slot; there are no restrictions.
8-4

PA-E3 Serial Port Adapter Installation and Configuration

Catalyst RSM/VIP2 Ports

Cisco 7505 Serial Port Number Example

CP
U

ROUTE SWITCH PROCESSOR

CO
NS
OL
E

HA
LT

PA-E3 (port numbers 3/1/0)

SL SLO
OT T
0 1

NO
RM

EJ
EC
T

PA-E3 (port number 3/0/0)

RE
SE
T

Figure 8-3

F
OO

RF
RL

Slot 3

AIS
OO
F

AIS

D
LE
AB
EN

RF
RL

LE
AB

E3 SERIAL
E3 SERIAL

Slot 2
Slot 1

Interface
processor
slots

H10610

Slot 0

You can identify interface ports by physically checking the slot/port-adapter/interface port location
on the back of the router or by using show commands to display information about a specific
interface or all interfaces in the router.

Catalyst RSM/VIP2 Ports
In the Catalyst RSM/VIP2, each port adapter address is composed of a two-part number in the
format port adapter number/interface port number, as follows:

•

The first number identifies the physical port adapter slot on the Catalyst RSM/VIP2, and is either
0 or 1.

•

The second number identifies the interface port on each E3 serial port adapter, which is always
numbered as interface 0 for the one-port PA-E3 and 0 or 1 for the two-port PA-2E3.

Figure 8-4 shows the port adapters on a Catalyst RSM/VIP2 installed in a Catalyst 5509 switch. The
first port adapter slot number is always 0. The second port adapter slot number is always 1. The
individual interface port numbers always begin with 0. The number of additional ports depends on
the number of ports on a port adapter.
For example, the serial port on a one-port PA-E3 in the first port adapter slot is numbered 0/0. (See
Figure 8-4.) If the PA-E3 is in port adapter slot 1, this same port is numbered 1/0. The serial ports
on a two-port PA-2E3 in the first port adapter slot are numbered 0/0 and 0/1.
Port adapters can occupy either port adapter slot; there are no restrictions.

Configuring the PA-E3 Interfaces 8-5

Identifying Port Adapter Slot and PA-E3 Interface Port Numbers

Figure 8-4

Serial Port Adapters in the Catalyst 5509

WS-x5530
EM S
ST U
SY AT
ST

2
PS

100%

WS-U5531-FETX

PORT 1

LINK

PCMCIA

Load

MDIX

10/100Mbps

LINK

AUX
Switch

10/100 FAST ETHERCHANNEL
EM S
ST U
SY AT
ST

PORT 2

10/100Mbps

CONSOLE

MDIX

SUPERVISOR ENGINE I I I

WS-x5530
N
FA
2
PS
1
PS

100%

WS-U5531-FETX

PORT 1

CONSOLE

PORT 2

MDIX

10/100Mbps

SUPERVISOR ENGINE I I I

LINK

PCMCIA

Load

MDIX

10/100Mbps

LINK

AUX
Switch

10/100 FAST ETHERCHANNEL

ST
A

FAST ETHERNET SWITCHING MODULE

Versatile Interface Processor
with port adapters

TXR

LK RF
RC FE RL

E3 SERIAL

UTP

E3 SERIAL

AIS OOF
CIA

CPU LE
AB
EN

ROUTE SWITCH MODULE

RF L
R

T
HAL
D

MODULE

AIS OOF

Route Switch Module

FAST ETHERNET SWITCHING

0
1
T
O
SL 0
T
O
SL

NEL

TX
RX

NEL

RES

NSO

FAST ETHERNET SWITCHING

MODULE

FAST ETHERNET SWITCHING

MODULE

U
AT

MODULE

o
o
FAN
OK

OUTPUT
FAIL
AC
OK

FAN
OK

OUTPUT
FAIL

26453

AC
OK

You can identify interface ports by physically checking the port-adapter/interface port location on
the back of the router or by using show commands to display information about a specific interface
or all interfaces in the router.

Cisco 7100 Series Ports
In the Cisco 7100 series routers, the slot number is the location in the chassis where the interface
resides and the port number is the physical port. Interfaces in the Cisco IOS software are identified
by a type, slot number, and port number. For example, serial 3/1 indicates port 1 on the serial
port adapter in slot 3.
Slots in the Cisco 7120 series routers are numbered as shown in Figure 8-5. The fixed LAN interface
is slot 0, the fixed WAN interface is slot 1, and the modular port adapter interface is slot 3. Slots 2
and 4 are not used on the Cisco 7120 series routers. Slot 5 is the service module.
Figure 8-5

Port Adapter Slot Numbering—Cisco 7120 Series
Slot 5

Slot 3

SLOT 0

SLOT 1
PWR

ACT ACT

0
FE 0 / 0

E3
EN

0/1

CONS

AUX

SYS
RDY

CEL CAR ALM

7120 - AE3

Slot 1
8-6

LNK LNK
0
1

Slot 0

PA-E3 Serial Port Adapter Installation and Configuration

18498

Performing a Basic Configuration

Slots in the Cisco 7140 series routers are numbered as shown Figure 8-6. The fixed LAN interface
is slot 0, the fixed WAN interfaces are slots 1 and 2, and the modular port adapter interface is slot 4.
Slot 3 is not used. Slot 5 is the service module.
Figure 8-6

Port Adapter Slot Numbering—Cisco 7140 Series
Slot 5

Slot 4

AC OK
DC OK
OTF

RESET

SLOT 0

BOOT
ERROR

PWR

0
FE 0 / 0

SLOT 1

ACT ACT

155 - MM

TX
EN

CEL CAR ALM

FE 0 / 1
RX

LNK LNK
0
1

155 - MM

CONS

CEL CAR ALM

Slot 1

AUX

AC OK

SYS
RDY

DC OK
OTF

7140 - 2MM3

18499

SM-EC-DS

Slot 0 Slot 2

Performing a Basic Configuration
The following steps are for a basic interface configuration for the PA-E3. Press the Return key after
each step unless otherwise noted. At any time you can exit the privileged level and return to the user
level by entering disable at the prompt:
router# disable
router>

Step 1

At the privileged-level prompt, enter configuration mode and specify that the console
terminal is the source of the configuration subcommands:
router# configure terminal
Enter configuration commands, one per line.
router(config)#

Step 2

End with CNTL/Z.

Specify the interface to configure:

•

For Cisco 7100 series, Cisco 7200 series, or Cisco uBR7200 series routers, specify the
interface to configure by entering the subcommand interface serial followed by the
slot/port (port adapter slot number and interface port number). The example that
follows is for the interface of the port adapter in slot 3:
router(config)# interface serial 3/0

•

For a VIP2, specify the interface to configure by entering the subcommand
interface serial, followed by the slot/port-adapter/port (interface processor slot
number, port adapter slot number, and interface port number). The example that
follows is for the interface of the first port adapter on a VIP2 in interface processor slot
1:
router(config)# interface serial 1/0/0

•

For a Catalyst RSM/VIP2, specify the interface to configure by entering the
subcommand interface serial, followed by the port-adapter/port (port adapter slot
number and interface port number). The example that follows is for the interface of
the first port adapter on a Catalyst RSM/VIP2:
router(config)# interface serial 0/0

Configuring the PA-E3 Interfaces 8-7

Configuration Example

Step 3

If IP routing is enabled on the system, change to interface configuration mode and use the
ip address configuration subcommand to assign an IP address and subnet mask to the
interface, as in the following example:
router(config-if)# ip address 10.0.0.0 10.255.255.255

Step 4

In interface configuration mode, choose the internal clock source by entering the
clock source configuration subcommand, as in the following example:
router(config-if)# clock source internal

Use the no form of this command to restore the default clock source, which is line.
Step 5

In interface configuration mode, change the shutdown state to up and enable the interface
as follows:
router(config-if)# no shutdown

Step 6

Configure additional interfaces as required.

Step 7

When you have included all of the configuration subcommands to complete the
configuration, press Ctrl-Z to exit configuration mode.

Step 8

Write the new configuration to nonvolatile memory as follows:
router# copy running-config startup-config
[OK]
router#

To check the interface configuration using show commands, proceed to the “Using show Commands
to Display Interface and System Information” section on page 8-12.

Configuration Example
The following example shows a typical configuration for the PA-E3 on a Cisco 7500 series router:
router> enable
router# configure terminal
router(config)# interface serial
router(config)# interface serial 1/0/0
router(config)# ip address 1.1.1.10 255.255.255.0
router(config-if)# clock source internal
router(config-if)# no shutdown
router(config-if)# ^Z

Customizing the PA-E3
You can customize the PA-E3. The features you can customize have default values that will probably
suit your environment and need not be changed. However, you might need to enter configuration
commands, depending on the requirements for your system configuration and the protocols you plan
to route on the interface. Perform the tasks in the following sections if you need to customize the
PA-E3.

8-8

PA-E3 Serial Port Adapter Installation and Configuration

Setting the Bandwidth

Setting the Bandwidth
In interface configuration mode, reduce effective bandwidth (range of 22 to 34010 kilobits per
second) by entering the dsu bandwidth configuration subcommand, as in the following example:
router(config-if)# dsu bandwidth 16000

Use the no form of this command to return to the default, 34010.
Note The local port configuration must match the remote port configuration. For example, if you

reduce the effective bandwidth to 16000 on the local port, you must do the same on the remote port.

Defining the DSU Mode
In interface configuration mode, define the DSU interoperability mode by entering the
dsu mode [0 | 1] configuration subcommand, as in the following example:
router(config-if)# dsu mode 1

Use the no form of this command to return to the default, 0.
Note The local port configuration must match the remote port configuration. For example, if you

define the DSU interoperability mode as 1 on the local port, you must do the same on the remote
port. You need to know what type of DSU is at the remote port to find out if it interoperates with the
PA-E3. For E3 serial interfaces, specify mode 0 for connection from a PA-E3 to another PA-E3 or a
Digital Link DSU (DL3100). Specify mode 1 for connection from a PA-E3 to a Kentrox DSU.
Also refer to the “Interoperability Guidelines for PA-E3 DSUs” section on page 15 for information
regarding DSU feature compatibilities.

Defining Set Bit (National)
In interface configuration mode, define set bit in G751 frame (national bit) by entering the
national bit [0 | 1] configuration subcommand, as in the following example:
router(config-if)# national bit 1

Use the no form of this command to return to the default, which is 0.

Enabling E3 Scrambling
In interface configuration mode, enable E3 scrambling by entering the scramble configuration
subcommand, as in the following example:
router(config-if)# scramble

Use the no form of this command to restore the default value, which is disabled.
Note The local port configuration must match the remote port configuration. For example, if you

enable scrambling on the local port, you must do the same on the remote port.
Also refer to the “Interoperability Guidelines for PA-E3 DSUs” section on page 15 for information
regarding DSU feature compatibilities.
Configuring the PA-E3 Interfaces 8-9

Configuring Cyclic Redundancy Checks

Specifying E3 Framing
In interface configuration mode, specify E3 framing by entering the framing {g751 | bypass}
configuration subcommand, as in the following example:
router(config-if)# framing g751

Use the no form of this command to return to the default, which is G.751 framing.
Note If you use the bypass option, scrambling must be set to the default, disabled; the DSU mode

must be set to the default, 0; and the DSU bandwidth must be set to the default, 34010.

Setting the Cable Length
In interface configuration mode, set the cable length (0 to 450 feet), as in the following example:
router(config-if)# cablelength 250

Use the no form of this command to return to the default, which is 10 feet.

Configuring Cyclic Redundancy Checks
The PA-E3 uses a 16-bit cyclic redundancy check (CRC) by default; it also supports a 32-bit CRC.
The CRC is an error-checking technique that uses a calculated numeric value to detect errors in
transmitted data. 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 sending 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.
Note To enable a 32-bit CRC on an interface, follow Step 1 and Step 2 of the preceding procedure

(enter configuration mode and specify the slot and port address of the PA-E3, and the interface port
number for a VIP2), and then enter the command crc 32. Enter Ctrl-Z to exit from configuration
mode.

For a Cisco 7100 series, Cisco 7200 series, or Cisco uBR7200 series router, use the following
example:
router# configure terminal
Enter configuration commands, one per line.
router(config)#
router(config)# interface serial 3/0
router(config-int)# crc 32
Ctrl-z

8-10

PA-E3 Serial Port Adapter Installation and Configuration

End with CNTL/Z.

Checking the Configuration

For a VIP2, use the following example:
router# configure terminal
Enter configuration commands, one per line.
router(config)#
router(config)# interface serial 1/0/0
router(config-if)# crc 32
Ctrl-z

End with CNTL/Z.

For a Catalyst RSM/VIP2, use the following example:
router# configure terminal
Enter configuration commands, one per line.
router(config)#
router(config)# interface serial 0/0
router(config-if)# crc 32
Ctrl-z

End with CNTL/Z.

To disable CRC-32 and return to the default CRC-16 setting, specify the slot and port address (and
the interface port number for a VIP2) and use the no crc 32 command. For complete command
descriptions and instructions, refer to the related software documentation.
Note When enabling a 32-bit CRC on an interface, ensure that the remote device is also configured

for a 32-bit CRC. Both the sender and the receiver must use the same CRC setting.

To check the interface configuration using show commands, proceed to the following section,
“Checking the Configuration.”

Checking the Configuration
After configuring the new interface, use the show commands to display the status of the new
interface or all interfaces, the ping command to check connectivity, and the loopback command to
verify the physical interface.

Using show Commands to Verify Status
Use show commands to verify that the new interfaces are configured and operating 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 of the current port adapters and their interfaces with the show controllers
command. Verify that the new PA-E3 appears in the correct slot.

Step 3

Specify one of the new interfaces as follows:

•

show interfaces type slot/port command on Cisco 7100 series, Cisco 7200 series, and
Cisco uBR7200 series routers

•
•

show interfaces type slot/port-adapter/port on the VIP2
show interfaces port-adapter/port on the Catalyst RSM/VIP2

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

Configuring the PA-E3 Interfaces 8-11

Checking the Configuration

Step 4

Specify one of the new interfaces as follows:

•

show interfaces port adapter type slot/port on Cisco 7100 series, Cisco 7200 series,
and Cisco uBR7200 series routers

•
•

show interfaces type slot/port adapter/interface command on the VIP2
show interfaces port adapter/interface command on the Catalyst RSM/VIP2

Verify that the first line of the display specifies the interface with the correct slot number
and that the interface and line protocol are in the correct state: up or down.
Step 5

View the information that is specific to the serial interface hardware:

•

For Cisco 7100, Cisco 7200 series and Cisco uBR7200 series routers, specify the new
serial interface with the show controllers serial [port adapter slot number/interface
port number] command, and verify that the first line of the display specifies the
interface with the correct slot number.

•

For a VIP2, specify information that is specific to the new serial interface with the
show controllers serial [type slot/port adapter/interface] command, and verify that
the first line of the display specifies the interface with the correct slot number.

•

For a Catalyst RSM/VIP2, specify information that is specific to the new serial
interface with the show controllers serial [port adapter/interface] command, and
verify that the first line of the display specifies the interface with the correct slot
number.

Step 6

Display the protocols configured for the entire system and for the specific interfaces with
the show protocols command. If necessary, return to configuration mode to add or
remove protocol routing on the system or on specific interfaces.

Step 7

Display the running configuration file with the show running-config command. Display
the configuration stored in NVRAM using the show startup-config command. Verify
that the configuration is accurate for the system and each interface.

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

Using show Commands to Display Interface and System Information
For Cisco 7100, Cisco 7200, or Cisco uBR7200 series routers, to display information about a
specific interface, use the show interfaces command with the interface type and port address in the
format show interfaces type slot/port.

8-12

PA-E3 Serial Port Adapter Installation and Configuration

Using show Commands to Display Interface and System Information

The following example of the show interfaces type slot/port command shows all of the information
specific to the serial E3 port (interface port 0) in port adapter slot 2:
router# show interfaces serial 2/0
Serial2/0 is up, line protocol is up
Hardware is M1T-E3 pa
Internet address is 172.16.0.0/8
MTU 4470 bytes, BW 34010 Kbit, DLY 200 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive not set
Last input 00:00:05, output 00:00:46, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
22 packets input, 7128 bytes, 0 no buffer
Received 22 broadcasts, 0 runts, 0 giants
0 parity
6 input errors, 3 CRC, 0 frame, 0 overrun, 0 ignored, 3 abort
22 packets output, 7348 bytes, 0 underruns
0 output errors, 0 applique, 6 interface resets
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
rxLOS inactive rxLOF inactive rxAIS inactive
txAIS inactive txRAI inactive

For a VIP2, the show interfaces type slot/port-adapter/port command displays status information
(including the physical slot and port address) for the interfaces you specify. In this example, a
one-port E3 serial port adapter-configured VIP2 is in chassis slot 1, in port adapter slot 0.
router# show interfaces serial 1/0/0
Serial1/0/0 is up, line protocol is up
Hardware is cyBus Serial
Internet address is 10.0.0.0/24
MTU 4470 bytes, BW 45045 Kbit, DLY 200 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive not set
Last input 2d22h, output 00:00:19, output hang never
Last clearing of “show interface” counters 2d20h
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 parity
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
4084 packets output, 1298712 bytes, 0 underruns
0 output errors, 0 applique, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions

For a Catalyst RSM/VIP2, the show interfaces port-adapter/port command displays status
information for the interfaces you specify. In this example, a one-port E3 serial port
adapter-configured Catalyst RSM/VIP2 in port adapter slot 0.
router# show interfaces serial 0/0
Serial0/0 is up, line protocol is up
Hardware is cyBus Serial
Internet address is 10.0.0.0/24
MTU 4470 bytes, BW 45045 Kbit, DLY 200 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive not set
Last input 2d22h, output 00:00:19, output hang never
Last clearing of “show interface” counters 2d20h
Queueing strategy: fifo

Configuring the PA-E3 Interfaces 8-13

Checking the Configuration

Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 parity
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
4084 packets output, 1298712 bytes, 0 underruns
0 output errors, 0 applique, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions

For Cisco 7100, Cisco 7200, and Cisco uBR7200 series routers, use the show controllers serial
command, using arguments such as the slot and port number (slot/port), to display information that
is specific to the serial interface hardware. Following is an example of the show controllers serial
slot/port command that shows the serial port adapter installed on a Cisco 7200 series router in
chassis slot 3:
router# show controllers serial 3/0
M1T-Serial: show controller:
PAS unit 0, subunit 0, f/w version 1-23, rev ID 0x1, version 2
idb = 0x608E3340, ds = 0x608E50C0, ssb=0x608E5A84
Clock mux=0x35, ucmd_ctrl=0x8, port_status=0x25
maxdgram=4474, bufpool=64Kb, 128 particles
TM=down CA=up LC=down
line state: up
Serial DTE cable
(Display text omitted.)

For a VIP2, use the show controllers serial command, using arguments such as those that specify
the slot, port adapter, and port numbers (slot/port-adapter/port), to display information that is
specific to the serial interface hardware. Following is an example of the show controllers serial
slot/port adapter/interface command that shows serial port 2/0/1 on a one-port PA-E3 installed on a
VIP2 in chassis slot 1:
router# show controllers serial 2/0/1
Serial2/0/1
Mx E3(2) HW Revision 0x2, FW Revision 2.42
Framing is g751, Clock Source is Line, Bandwidth limit is 34010.
National Bit is 0, International Bits are: 0 0
DSU mode 0
Data in current interval (421 seconds elapsed):
0 Line Code Violations, 0 P-bit Coding Violation
0 C-bit Coding Violation
0 P-bit Err Secs, 0 P-bit Severely Err Secs
0 Severely Err Framing Secs, 0 Unavailable Secs
0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
Total Data (last 1 15 minute intervals):
4 Line Code Violations, 0 P-bit Coding Violation,
0 C-bit Coding Violation,
0 P-bit Err Secs, 0 P-bit Severely Err Secs,
0 Severely Err Framing Secs, 0 Unavailable Secs,
3 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
No alarms detected.
(Display text omitted.)

8-14

PA-E3 Serial Port Adapter Installation and Configuration

Using show Commands to Display Interface and System Information

For a Catalyst RSM/VIP2, use the show controllers serial command, using arguments such as those
that specify the port adapter and port numbers (port-adapter/port), to display information that is
specific to the serial interface hardware. Following is an example of the show controllers serial
port-adapter/interface command that shows serial port 0/1 on a one-port PA-E3 installed on a
Catalyst RSM/VIP2:
router# show controllers serial 0/1
Serial0/1
Mx E3(2) HW Revision 0x2, FW Revision 2.42
Framing is g751, Clock Source is Line, Bandwidth limit is 34010.
National Bit is 0, International Bits are: 0 0
DSU mode 0
Data in current interval (421 seconds elapsed):
0 Line Code Violations, 0 P-bit Coding Violation
0 C-bit Coding Violation
0 P-bit Err Secs, 0 P-bit Severely Err Secs
0 Severely Err Framing Secs, 0 Unavailable Secs
0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
Total Data (last 1 15 minute intervals):
4 Line Code Violations, 0 P-bit Coding Violation,
0 C-bit Coding Violation,
0 P-bit Err Secs, 0 P-bit Severely Err Secs,
0 Severely Err Framing Secs, 0 Unavailable Secs,
3 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
No alarms detected.
(Display text omitted.)

The show version (or show hardware) command displays the configuration of the system hardware
(the number of each port adapter type installed), the software version, the names and sources of
configuration files, and the boot images. Following is an example of the output from the
show version command on a Cisco 7200 series router:
router# show version
Cisco Internetwork Operating System Software
IOS (tm) 7200 Software (C7200-P-M), Version 11.1(16)CA
Synced to mainline version: 11.1(10.5)
Copyright (c) 1986-1997 by cisco Systems, Inc.
Compiled Thu 22-May-97 14:40
Image text-base: 0x600088F0, data-base: 0x604B6000
ROM: System Bootstrap, Version 11.1(5) [mkamson 5], RELEASE SOFTWARE (fc1)
ROM: 7200 Software (C7200-BOOT-M), Version 11.1(6), RELEASE SOFTWARE (fc1)
byron uptime is 22 minutes
System restarted by reload
System image file is "paking/poet/c7200-p-mz", booted via tftp from 172.16.0.0
cisco 7206 (NPE150) processor with 12288K/4096K bytes of memory.
R4700 processor, Implementation 33, Revision 1.0 (512KB Level 2 Cache)
Last reset from power-on
X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.
4 Ethernet/IEEE 802.3 interfaces.
1 Serial network interface.
1 FDDI network interface.
125K bytes of non-volatile configuration memory.
1024K bytes of packet SRAM memory.
4096K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x2

Configuring the PA-E3 Interfaces 8-15

Checking the Configuration

Following is an example of the show version command used with a Cisco 7500 series system:
router# show version
Cisco Internetwork Operating System Software
IOS (tm) GS Software, Version 11.1(16)CA
Synced to mainline version: 11.1(10.5)
Copyright (c) 1986-1997 by cisco Systems, Inc.
Compiled Thu 22-May-97 14:32
Image text-base: 0x600108E0, data-base: 0x60A00000
ROM: System Bootstrap, Version 5.3.2(3.2) [kmac 3.2], MAINTENANCE INTERIM SOFTWARE
ROM: GS Software, Version 11.1(8)CA, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
keats uptime is 22 minutes
System restarted by reload
System image file booted via tftp from 172.16.0.0
Last reset from power-on
G.703/E1 software, Version 1.0.
G.703/JT2 software, Version 1.0.
SuperLAT software (copyright 1990 by Meridian Technology Corp).
Bridging software.
X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.
TN3270 Emulation software (copyright 1994 by TGV Inc).
Chassis Interface.
3 VIP2 controllers (1 FastEthernet)(4 Ethernet)(1 Fddi)(2 E3).
4 Ethernet/IEEE 802.3 interfaces.
1 FastEthernet/IEEE 802.3 interface.
2 Serial network interfaces.
1 FDDI network interface.
125K bytes of non-volatile configuration memory.
8192K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x2

To determine which type of port adapter is installed in your system, use the show diag slot
command. Specific port adapter information is displayed, as shown in the following example of a
one-port PA-E3 in chassis slot 3 on a Cisco 7200 series router:
router# show diag 3
Slot 3:
E3 PA port adapter, 1 ports
Port adapter is analyzed
Port adapter insertion time 01:04:31 ago
Hardware revision 1.0
Board revision
Serial number
3710903
Part number
Test history
0x0
RMA number
EEPROM format version 1
EEPROM contents (hex):
0x20: 01 71 01 00 00 38 9F B7 49 07 09 03 00
0x30: 06 00 00 00 FF FF FF 00 FF FF FF FF FF

8-16

PA-E3 Serial Port Adapter Installation and Configuration

UNKNOWN
73-1801-03
00-00-00

00 00 00
FF FF FF

Using show Commands to Display Interface and System Information

To determine which type of port adapter is installed on a VIP2 in your system, use the show diag slot
command. Specific port adapter information is displayed, as shown in the following example of a
one-port PA-E3 in chassis slot 2:
router# show diag 2
Slot 2:
Physical slot 2, ~physical slot 0xD, logical slot 2, CBus 0
Microcode Status 0x4
Master Enable, LED, WCS Loaded
Board is analyzed
Pending I/O Status: None
EEPROM format version 1
VIP2 controller, HW rev 2.4, board revision D0
Serial number: 04371939 Part number: 73-1684-03
Test history: 0x00
RMA number: 00-00-00
Flags: cisco 7500
EEPROM contents (hex):
0x20: 01 15 02 04 00 42 B5 E3 49 06 94 03 00 00 00 00
0x30: 68 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Slot database information:
Flags: 0x4
Insertion time: 0x14A4 (00:23:00 ago)
Controller Memory Size: 32 MBytes DRAM, 2048 KBytes SRAM
PA Bay 0 Information:
E3 Serial PA, 1 port
EEPROM format version 1
HW rev 1.00, Board revision AO
Serial number: 3549502 Part number: 73-2620-02

To determine which type of port adapter is installed on a Catalyst RSM/VIP2 in your system, use the
show diag command. Specific port adapter information is displayed, as shown in the following
example of a one-port PA-E3:
router# show diag 1
Slot 1:
Physical slot 1, ~physical slot 0xD, logical slot 1, CBus 0
Microcode Status 0x4
Master Enable, LED, WCS Loaded
Board is analyzed
Pending I/O Status: None
EEPROM format version 1
VIP2 controller, HW rev 2.4, board revision D0
Serial number: 04371939 Part number: 73-1684-03
Test history: 0x00
RMA number: 00-00-00
Flags: cisco 7500
EEPROM contents (hex):
0x20: 01 15 02 04 00 42 B5 E3 49 06 94 03 00 00 00 00
0x30: 68 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Slot database information:
Flags: 0x4
Insertion time: 0x14A4 (00:23:00 ago)

Note The slot values displayed by some commands (such as show diag and show controllers

cbus) are not relevant to any physical connection; disregard these slot values for the
Catalyst RSM/VIP2.
Configuring the PA-E3 Interfaces 8-17

Checking the Configuration

For a VIP2, use the show controllers cbus command to display all of the current interface
processors and their interfaces. Following is an example of the show controllers cbus command that
shows serial port 1/0/0 on a one-port PA-E3 installed on a VIP2 in chassis slot 1:
router# show controllers cbus
MEMD at 40000000, 2097152 bytes (unused 4288, recarves 1, lost 0)
RawQ 48000100, ReturnQ 48000108, EventQ 48000110
BufhdrQ 48000138 (2810 items), LovltrQ 48000150 (20 items, 2016 bytes)
IpcbufQ 48000160 (32 items, 4096 bytes)
IpcbufQ_classic 48000158 (8 items, 4096 bytes)
3570 buffer headers (48002000 - 4800FF10)
pool0: 9 buffers, 256 bytes, queue 48000140
pool1: 458 buffers, 1536 bytes, queue 48000148
pool2: 229 buffers, 4512 bytes, queue 48000168
pool3: 4 buffers, 4544 bytes, queue 48000170
slot0: VIP2, hw 2.4, sw 21.40, ccb 5800FF20, cmdq 48000080, vps 8192
software loaded from system
IOS (tm) VIP Software (SVIP-DW-M), Version 11.1(16)CA
ROM Monitor version 17.0
Ethernet0/0/0, addr 00e0.f7d7.cb00 (bia 00e0.f7d7.cb00)
gfreeq 48000148, lfreeq 48000178 (1536 bytes), throttled 0
rxlo 4, rxhi 273, rxcurr 2, maxrxcurr 4
txq 48001A00, txacc 48001A02 (value 152), txlimit 152
Ethernet0/0/1, addr 00e0.f7d7.cb01 (bia 00e0.f7d7.cb01)
gfreeq 48000148, lfreeq 48000180 (1536 bytes), throttled 0
rxlo 4, rxhi 273, rxcurr 0, maxrxcurr 0
txq 48001A08, txacc 48001A0A (value 0), txlimit 152
Ethernet0/0/2, addr 00e0.f7d7.cb02 (bia 00e0.f7d7.cb02)
gfreeq 48000148, lfreeq 48000188 (1536 bytes), throttled 0
rxlo 4, rxhi 273, rxcurr 0, maxrxcurr 0
txq 48001A10, txacc 48001A12 (value 0), txlimit 152
Ethernet0/0/3, addr 00e0.f7d7.cb03 (bia 00e0.f7d7.cb03)
gfreeq 48000148, lfreeq 48000190 (1536 bytes), throttled 0
rxlo 4, rxhi 273, rxcurr 0, maxrxcurr 0
txq 48001A18, txacc 48001A1A (value 0), txlimit 152
(Display text omitted.)

8-18

PA-E3 Serial Port Adapter Installation and Configuration

Using the ping Command to Verify Network Connection

For a Catalyst RSM/VIP2, use the show controllers cbus command to display all of the current
interfaces. Following is an example of the show controllers cbus command that shows serial port
0/0 on a one-port PA-E3 installed on a Catalyst RSM/VIP2:
router# show controllers cbus
MEMD at 40000000, 2097152 bytes (unused 4288, recarves 1, lost 0)
RawQ 48000100, ReturnQ 48000108, EventQ 48000110
BufhdrQ 48000138 (2810 items), LovltrQ 48000150 (20 items, 2016 bytes)
IpcbufQ 48000160 (32 items, 4096 bytes)
IpcbufQ_classic 48000158 (8 items, 4096 bytes)
3570 buffer headers (48002000 - 4800FF10)
pool0: 9 buffers, 256 bytes, queue 48000140
pool1: 458 buffers, 1536 bytes, queue 48000148
pool2: 229 buffers, 4512 bytes, queue 48000168
pool3: 4 buffers, 4544 bytes, queue 48000170
slot0: VIP2, hw 2.4, sw 21.40, ccb 5800FF20, cmdq 48000080, vps 8192
software loaded from system
IOS (tm) VIP Software (SVIP-DW-M), Version 11.1(16)CA
ROM Monitor version 17.0
Ethernet0/0, addr 00e0.f7d7.cb00 (bia 00e0.f7d7.cb00)
gfreeq 48000148, lfreeq 48000178 (1536 bytes), throttled 0
rxlo 4, rxhi 273, rxcurr 2, maxrxcurr 4
txq 48001A00, txacc 48001A02 (value 152), txlimit 152
Ethernet0/1, addr 00e0.f7d7.cb01 (bia 00e0.f7d7.cb01)
gfreeq 48000148, lfreeq 48000180 (1536 bytes), throttled 0
rxlo 4, rxhi 273, rxcurr 0, maxrxcurr 0
txq 48001A08, txacc 48001A0A (value 0), txlimit 152
Ethernet0/2, addr 00e0.f7d7.cb02 (bia 00e0.f7d7.cb02)
gfreeq 48000148, lfreeq 48000188 (1536 bytes), throttled 0
rxlo 4, rxhi 273, rxcurr 0, maxrxcurr 0
txq 48001A10, txacc 48001A12 (value 0), txlimit 152
Ethernet0/3, addr 00e0.f7d7.cb03 (bia 00e0.f7d7.cb03)
gfreeq 48000148, lfreeq 48000190 (1536 bytes), throttled 0
rxlo 4, rxhi 273, rxcurr 0, maxrxcurr 0
txq 48001A18, txacc 48001A1A (value 0), txlimit 152
(Display text omitted.)

Note The slot values displayed by some commands (such as show diag and show controllers

cbus) are not relevant to any physical connection; please disregard these slot values for the
Catalyst RSM/VIP2.

For complete command descriptions and examples for the Cisco 7100 series routers, Cisco 7200
series routers, Cisco uBR7200 series routers, the VIP2, and the Catalyst RSM/VIP2, refer to the
publications listed in the “Related Documentation” section on page vi.

Using the ping Command to Verify Network Connection
The ping command allows you to verify that an interface port is functioning properly and to check
the path between a specific port and connected devices at various locations on the network. For
example, after you verify that the system and VIP2 have booted successfully and are operational,
you can use the ping command to verify the status of interface ports. Refer to the publications listed
in the “Related Documentation” section on page vi for detailed command descriptions and
examples.
The ping command sends an echo request out to a remote device at an IP address that you specify.
After sending a series of signals, the command waits a specified time for the remote device to echo
the signals. Each returned signal is displayed as an exclamation point (!) on the console terminal;
Configuring the PA-E3 Interfaces 8-19

Checking the Configuration

each signal that is not returned before the specified timeout is displayed as a period (.). A series of
exclamation points (!!!!!) indicates a good connection; a series of periods (.....) or the message [timed
out] or [failed] indicates that the connection failed.
Following is an example of a successful ping command to a remote server with the address 10.0.0.0:
router# ping 10.0.0.0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echoes to 1.1.1.10, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/15/64 ms
router#

If the connection fails, verify that you have the correct IP address for the server and that the server
is active (powered on), and repeat the ping command. Refer to the publications listed in the “Related
Documentation” section on page vi for complete descriptions of interface subcommands and the
configuration options available for VIP2-related interfaces, and to determine which subcommands
and configuration options support VIP2 functionality.

Using the loopback Command to Verify the Physical Interface
Use the loopback {dte | local | network {line | payload} command to troubleshoot the E3 serial
port adapter at the physical interface level. The command loops all packets from the E3 interface
either back to the interface or from the network back out toward the network. Use the no form of the
command to remove the loop.
The following examples of the loopback {dte | local | network {line | payload} command configure
loopback modes on the single interface (interface 0) of a one-port E3 serial port adapter in port
adapter slot 0 of a VIP2 in chassis slot 10 of a Cisco 7500 series router:

•

Set the interface into loopback data terminal equipment (DTE) mode as follows:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
router(config)# interface serial 10/0/0
router(config-if)# loopback dte

Loopback DTE loops the router output data back toward the router (after the line interface unit).

•

Set the interface into local loopback mode as follows:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
router(config)# interface serial 10/0/0
router(config-if)# loopback local

Local loopback loops the router output data back toward the router at the framer.

•

Set the interface into network line loopback mode as follows:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
router(config)# interface serial 10/0/0
router(config-if)# loopback network line

Network line loopback loops the data back toward the network (before the framer).

8-20

PA-E3 Serial Port Adapter Installation and Configuration

Using the loopback Command to Verify the Physical Interface

•

Set the interface into network payload loopback mode as follows:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
router(config)# interface serial 10/0/0
router(config-if)# loopback network payload

Network payload loopback loops just the payload data back toward the network at the E3 framer.

Configuring the PA-E3 Interfaces 8-21

Checking the Configuration

8-22

PA-E3 Serial Port Adapter Installation and Configuration

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