Cisco 7304 6-Port Clear Channel E3 Line Card with DSU Installation and Configuration Product Number: 7300-6E3 Platform Supported: Cisco 7304 Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.
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C O N T E N T S Preface vii Objectives vii Organization viii Related Documentation viii Obtaining Documentation ix Cisco.
Contents Safety Guidelines 2-2 Safety Warnings 2-2 Warning Definition 2-2 Electrical Equipment Guidelines 2-7 Telephone Wiring Guidelines 2-8 Preventing Electrostatic Discharge Damage CHAPTER 3 Removing and Installing Line Cards Installation Overview Handling Line Cards 2-8 3-1 3-1 3-2 Online Insertion and Removal Warnings and Cautions 3-2 3-3 Line Card Removal and Installation 3-3 Cisco 7304—Removing and Installing a Line Card Connecting a SMB Cable CHAPTER 4 3-4 3-5 Configuring the 6E3 Lin
Contents Using loopback Commands 4-16 Bit Error Rate Testing 4-17 CLI-Controlled OIR 4-18 Line Card Crash Recovery DSU Link Doesn’t Work Symptom 4-20 Conditions 4-20 Workaround 4-20 4-18 4-20 Cisco 7304 6-Port Clear Channel E3 Line Card Installation and Configuration OL-5061-01 v
Contents Cisco 7304 6-Port Clear Channel E3 Line Card Installation and Configuration vi OL-5061-01
Preface This preface describes the objectives and organization of this document and explains how to find additional information on related products and services.
Preface Organization Organization This document contains the following chapters: Section Title Description Chapter 1 Overview Describes the 6E3 line card and 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. Chapter 3 Removing and Installing Line Cards Describes the procedures for installing and removing the 6E3 line card in the supported platform.
Preface Obtaining Documentation Obtaining Documentation Cisco documentation and additional literature are available on Cisco.com. Cisco also provides several ways to obtain technical assistance and other technical resources. These sections explain how to obtain technical information from Cisco Systems. Cisco.com You can access the most current Cisco documentation at this URL: http://www.cisco.com/univercd/home/home.htm You can access the Cisco website at this URL: http://www.cisco.
Preface Obtaining Technical Assistance Obtaining Technical Assistance For all customers, partners, resellers, and distributors who hold valid Cisco service contracts, Cisco Technical Support provides 24-hour-a-day, award-winning technical assistance. The Cisco Technical Support Website on Cisco.com features extensive online support resources. In addition, Cisco Technical Assistance Center (TAC) engineers provide telephone support. If you do not hold a valid Cisco service contract, contact your reseller.
Preface Obtaining Additional Publications and Information Severity 2 (S2)—Operation of an existing network is severely degraded, or significant aspects of your business operation are negatively affected by inadequate performance of Cisco products. You and Cisco will commit full-time resources during normal business hours to resolve the situation. Severity 3 (S3)—Operational performance of your network is impaired, but most business operations remain functional.
Preface Obtaining Additional Publications and Information Cisco 7304 6-Port Clear Channel E3 Line Card Installation and Configuration xii OL-5061-01
1 C H A P T E R Overview This chapter describes the 6E3 line card and contains the following sections: • Line Card Overview, page 1-1 • Features, page 1-2 • Interoperability Guidelines for 6E3 Line Card DSUs, page 1-3 • LEDs, page 1-3 • SMB Cables, page 1-4 • Management Information Base, page 1-7 • Line Card Slot Locations on the Supported Platform, page 1-7 • Identifying Interface Addresses, page 1-8 Line Card Overview The 6E3 line card provides a six port E3 single slot interface for the
Chapter 1 Overview Features Features The 6E3 line card provides the following features: • Single-wide line card for the Cisco 7304 router • Six independent E3 ports • Serial encapsulation protocols: – High-Level Data Link Control (HDLC) data (default) – Point-to-point protocol (PPP) – Frame Relay • E3 support: – Framing control (g751) – Clocking modes (local and line) – Local (diagnostic), DTE, network (line) and network (payload) loopback • Integrated data service unit (DSU) functionality • C
Chapter 1 Overview Interoperability Guidelines for 6E3 Line Card DSUs Interoperability Guidelines for 6E3 Line Card DSUs The 6E3 line card supports several types of integrated data service units (DSUs). Table 1-1 lists the feature compatibilities of 6E3 line card DSUs. Table 1-1 Feature Compatibilities of 6E3 Line Card DSUs DSU Full Rate Support Scrambling Support Subrate Support MDL1 Support DL31002 Yes Yes Yes No Kentrox Yes Yes 3 Yes 2 No 1. MDL (maintenance data link) 2.
Chapter 1 Overview SMB Cables Figure 1-2 LEDs on the 6E3 Line Card 7300-6E3 TX RX TX RX TX RX TX RX TX RX TX RX 0 1 2 3 4 5 LNK LNK LNK LNK LNK LNK STATUS 103179 OIR 6-PORT E3 DSU Table 1-2 6E3 Line Card LEDs LED Label Color State Meaning OIR Green On Line card is ready to be removed in CLI-controlled OIR. Off Line card is online. Green Line card is online. Yellow Line card bootstrapping is in progress. Off Line card is offline or deactivated.
Chapter 1 Overview SMB Cables SMB Cables (SMB Terminates into BNC) 70005 Figure 1-3 SMB connector Note Male BNC connector Female BNC connector Electromagnetic compliance (EMC) was verified with the 10-foot (3.048 meters) shielded cables that are orderable through Cisco. We recommend that you use only the 10-foot (3.048 meters) shielded SMB cables; otherwise, EMC is not guaranteed.
Chapter 1 Overview SMB Cables Ordering Cables You must order cables separately with the 6E3 line card when you order a Cisco 7304 router. Cables are not automatically included with the 6E3 line card. Be sure to specify the type of cable you want shipped with your card, • 2CBLE-SMB-BNC-M [male] • 2CBLE-SMB-BNC-F [female]) Building Your Own Cables You can build your own cables for the 6E3 line card by using the cable components listed in Table 1-3.
Chapter 1 Overview Management Information Base E3 systems are designed for cable lengths of 450 feet (137 meters) between the transmitter and the DSX-3 demarcation point where the standard pulse mask must be met. From the DSX-3 point, another run of 450 feet (137 meters) is allowed to the receiver, making a total of 900 feet (274 meters) between transmitter and receiver. This limitation is due to signal attenuation in the cable. Although the American National Standards Institute (ANSI) standard T1.
Chapter 1 Overview Identifying Interface Addresses Figure 1-5 Slots in the Cisco 7304 Router Slot 4 7300-6T3 OIR TX 0 STATUS 6-PORT T3 DSU LNK Slot 5 RX TX 1 LNK RX TX 2 RX TX 3 LNK 9K-10C 48 LNK RX TX 4 RX LNK TX 5 RX LNK TX OIR RX STATUS 1-PORT OC48 POS 9K-40C 3/POS -MM w/ SMS R OIR STATUS 4-POR T OC3 0 1 POS w/ 2 3 MM CARRIER ALARM/ 66944 ACTIVE/ LOOPBA CK Slot 0 Slot 2 Slot 3 Slot 1 Identifying Interface Addresses This section describes how to identify interface
C H A P T E R 2 Preparing for Installation This chapter describes the general equipment, safety, and site preparation requirements for installing the 6E3 line card. This chapter contains the following sections: • Required Tools and Equipment, page 2-1 • Software and Hardware Requirements, page 2-1 • 75-Ohm In-Line Coaxial Attenuator (Optional), page 2-2 • Safety Guidelines, page 2-2 Required Tools and Equipment You need the following tools and parts to install a line card.
Chapter 2 Preparing for Installation 75-Ohm In-Line Coaxial Attenuator (Optional) 75-Ohm In-Line Coaxial Attenuator (Optional) A 75-ohm in-line coaxial attenuator may be required to tune the signal between the 6E3 line card and the far-end equipment if the line card is experiencing line code violations (LCVs). LCVs occur when the far-end equipment transmit signal saturates the front-end receiver of the 6E3 line card.
Chapter 2 Preparing for Installation Safety Guidelines Waarschuwing BELANGRIJKE VEILIGHEIDSINSTRUCTIES 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 de standaard praktijken om ongelukken te voorkomen.
Chapter 2 Preparing for Installation Safety Guidelines Advarsel VIKTIGE SIKKERHETSINSTRUKSJONER Dette advarselssymbolet betyr fare. Du er i en situasjon som kan føre til skade på person. Før du begynner å arbeide med noe av utstyret, må du være oppmerksom på farene forbundet med elektriske kretser, og kjenne til standardprosedyrer for å forhindre ulykker. Bruk nummeret i slutten av hver advarsel for å finne oversettelsen i de oversatte sikkerhetsadvarslene som fulgte med denne enheten.
Chapter 2 Preparing for Installation Safety Guidelines Aviso INSTRUÇÕES IMPORTANTES DE SEGURANÇA Este símbolo de aviso significa perigo. Você se encontra em uma situação em que há risco de lesões corporais. Antes de trabalhar com qualquer equipamento, esteja ciente dos riscos que envolvem os circuitos elétricos e familiarize-se com as práticas padrão de prevenção de acidentes.
Chapter 2 Preparing for Installation Safety Guidelines Advarsel VIGTIGE SIKKERHEDSANVISNINGER Dette advarselssymbol betyder fare. Du befinder dig i en situation med risiko for legemesbeskadigelse. Før du begynder arbejde på udstyr, skal du være opmærksom på de involverede risici, der er ved elektriske kredsløb, og du skal sætte dig ind i standardprocedurer til undgåelse af ulykker.
Chapter 2 Preparing for Installation Safety Guidelines Electrical Equipment Guidelines Follow these basic guidelines when working with any electrical equipment: • Before beginning any procedure requiring access to the chassis interior, locate the emergency power-off switch for the room in which you are working. • Disconnect all power and external cables before moving a chassis. • Do not work alone when potentially hazardous conditions exist.
Chapter 2 Preparing for Installation Safety Guidelines 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 install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
C H A P T E R 3 Removing and Installing Line Cards This chapter describes how to remove the 6E3 line card from supported platforms and also how to install a new or replacement line card.
Chapter 3 Removing and Installing Line Cards Handling Line Cards Handling Line Cards Caution Always handle the line card by the carrier edges and handle; never touch the line card components or connector pins. (See Figure 3-1.
Chapter 3 Removing and Installing Line Cards Warnings and Cautions Warnings and Cautions Observe the following warnings and cautions when installing or removing line cards. Caution Do not slide a line card all the way into the slot until you have connected all required cables. Trying to do so disrupts normal operation of the router or switch.
Chapter 3 Removing and Installing Line Cards Line Card Removal and Installation Cisco 7304—Removing and Installing a Line Card 1. To remove the line card, loosen the locking thumbscrews on both sides of the line card. 2. Pull out the line card levers and carefully slide the line card halfway out of the slot. If you are removing a blank line card, pull the blank line card completely out of the chassis slot. 3. With the line card halfway out of the slot, disconnect all cables from the line card.
Chapter 3 Removing and Installing Line Cards Connecting a SMB Cable Connecting a SMB Cable On a 6E3 line card, you can use six SMB cables (one for each E3 link). Tip If you build your own cables, we strongly recommend that you fasten together your transmit and receive cables along their entire length, as shown in Figure 3-2. Doing so reduces the effects of EMI. You can use shielded jacketing or tubing for this purpose.
Chapter 3 Removing and Installing Line Cards Connecting a SMB Cable Cisco 7304 6-Port Clear Channel E3 Line Card Installation and Configuration 3-6 OL-5061-01
C H A P T E R 4 Configuring the 6E3 Line Card To continue your 6E3 line card installation, you must configure the serial interfaces.
Chapter 4 Configuring the 6E3 Line Card Configuring the Interfaces Configuring the Interfaces After you verify that the new 6E3 line card is installed correctly (the STATUS LED turns green), use the privileged-level configure command to configure the new interfaces.
Chapter 4 Configuring the 6E3 Line Card Configuring the Interfaces When you have finished, press Ctrl-Z—hold down the Control key while you press Z—or enter end or exit to exit configuration mode and return to the EXEC command interpreter. Table 4-1 Syntax of the shutdown Command Platform Command Example Cisco 7304 routers interface, followed by the type The example is for interface 0 and interface 1 on a 6E3 line (serial) and slot/port (slot-number/ card in slot 2.
Chapter 4 Configuring the 6E3 Line Card Configuring the Interfaces Performing a Basic Configuration Following are instructions for a basic configuration: enabling an interface and specifying IP routing. You might also need to enter other configuration subcommands, depending on the requirements for your system configuration and the protocols you plan to route on the interface.
Chapter 4 Configuring the 6E3 Line Card Configuring the Interfaces Table 4-4 shows the default values for the 6E3 line card serial interfaces.
Chapter 4 Configuring the 6E3 Line Card Configuring the Interfaces Verifying Local and Remote E3 Port Settings You can use telnet to determine the DSU mode settings on the remote E3 port. Once you verify the remote E3 port settings, you can negotiate changing configuration parameters so that DSU mode settings are the same on both the local and remote E3 ports. Selecting a DSU Mode The DSU mode supports two third-party DSU vendors—Digital Link and Kentrox—and the default DSU mode, Cisco.
Chapter 4 Configuring the 6E3 Line Card Configuring the Interfaces Table 4-6 CRC Commands Purpose Command Example Enable 32-bit CRC crc size The example enables 32-bit CRC on a serial interface: Router(config)# interface serial 3/0 Router(config-if)# crc 32 Return to default 16-bit no crc size CRC The example disables 32-bit CRC on a serial interface and returns to the default 16-bit CRC: Router(config)# interface serial 3/0 Router(config-if)# no crc 32 CRC is an error-checking technique that us
Chapter 4 Configuring the 6E3 Line Card Checking the Configuration Defining the DSU Mode In interface configuration mode, define the DSU interoperability mode by entering the dsu mode [cisco | digital-link | kentrox ] configuration subcommand, as in the following example: Router(config-if)# dsu mode cisco Use the no form of this command to return to the default, cisco. Note The local port configuration must match the remote port configuration.
Chapter 4 Configuring the 6E3 Line Card Checking the Configuration Using show Commands to Verify the New Interface Status Table 4-7 on page 4-9 demonstrates how you can use the show commands to verify that new interfaces are configured and operating correctly and that the 6E3 line card appears in them correctly. Sample displays of the output of selected show commands appear in the sections that follow.
Chapter 4 Configuring the 6E3 Line Card Checking the Configuration Using the show version Command Display the configuration of the hardware, the Cisco IOS software version, the names and sources of configuration files, and the boot images by using the show version command. Note The outputs that appear in this document may not match the output you receive when running these commands. The outputs in this document are examples only.
Chapter 4 Configuring the 6E3 Line Card Checking the Configuration Cisco 7304 Routers Following is an example of the show version command from a Cisco 7304 router with the 6E3 line card: WS_2_DS3_1600 #show version Cisco Internetwork Operating System Software IOS (tm) 7300 Software (C7300-JS-M), Version 12.2(20S) Copyright (c) 1986-2001 by cisco Systems, Inc. Compiled Thu 20-Dec-03 03:25 by cva Image text-base:0x4000878, data-base:0x42794000 ROM:System Bootstrap, Version 12.
Chapter 4 Configuring the 6E3 Line Card Checking the Configuration Using the show diag (slot) Command Display the types of line cards installed in your system (and specific information about each) using the show diag slot command. Note The outputs that appear in this document may not match the output you receive when running these commands. The outputs in this document are examples only.
Chapter 4 Configuring the 6E3 Line Card Checking the Configuration 0x150:FF FF FF FF FF FF FF FF FF FF FF FF FF FF 0x160:FF FF FF FF FF FF FF FF FF FF FF FF FF FF 0x170:FF FF FF FF FF FF FF FF FF FF FF FF FF FF 0x180:FF FF FF FF FF FF FF FF FF FF FF FF FF FF 0x190:FF FF FF FF FF FF FF FF FF FF FF FF FF FF 0x1A0:FF FF FF FF FF FF FF FF FF FF FF FF FF FF 0x1B0:FF FF FF FF FF FF FF FF FF FF FF FF FF FF 0x1C0:FF FF FF FF FF FF FF FF FF FF FF FF FF FF 0x1D0:FF FF FF FF FF FF FF FF FF FF FF FF FF FF 0x1E0:FF FF
Chapter 4 Configuring the 6E3 Line Card Checking the Configuration Cisco 7304 Routers Following is an example of the show interfaces command for Cisco 7304 routers. In this example, the serial interfaces (0 to 5) are on a 6E3 line card in slot 1, also, the status information for interfaces 1 through 5 is omitted. (Interfaces are administratively shut down until you enable them.) Router #sho interfaces serial 2/1 Serial2/1 is up, line protocol is up Hardware is Packet over E3 Internet address is 150.2.2.
Chapter 4 Configuring the 6E3 Line Card Checking the Configuration Cisco 7304 Routers The output also indicates whether the alarm or event originates from the local-end connector or the remote-end connector, as shown in the following example: WS_2_DS3_1600 #show controllers serial 2/0 Interface Serial2/0 (E3 port 0) Line state is up rxLOS inactive, rxLOF inactive, rxAIS inactive txAIS inactive, rxRAI inactive, txRAI inactive Current configurable parameter settings: Loopback is none, Clock source is intern
Chapter 4 Configuring the 6E3 Line Card Checking the Configuration Using loopback Commands With the loopback test, you can detect and isolate equipment malfunctions by testing the connection between the 6E3 line card interface and a remote device such as a modem or a CSU/DSU. The loopback command places an interface in loopback mode, which enables test packets that are generated from the ping command to loop through a remote device or compact serial cable.
Chapter 4 Configuring the 6E3 Line Card Checking the Configuration E3 Loopback Paths Tx DS3 framer LIU Rx DS3 framer QJET Tx/Rx HDLC Tx DS3 framer LIU Rx DS3 framer QJET Diagnostic or local loopback No loopbacks Tx DS3 framer LIU Rx DS3 framer QJET Tx/Rx HDLC Tx/Rx HDLC Tx DS3 framer LIU Rx DS3 framer QJET Line loopback Tx/Rx HDLC Payload loopback Tx DS3 framer LIU Rx DS3 framer QJET Tx/Rx HDLC DTE loopback 103347 Figure 4-1 Bit Error Rate Testing The ratio of received bits on an interfac
Chapter 4 Configuring the 6E3 Line Card CLI-Controlled OIR CLI-Controlled OIR Line cards can be removed from the Cisco 7304 router without disrupting data flow by using the hw-module slot slot # stop/start command in EXEC mode. The hw-module slot slot # stop command will stop traffic, shut down all line card interfaces, and deactivate the line card. The hw-module slot slot # start command resets the line card, puts the line card back online and turns off the OIR LED.
Chapter 4 Configuring the 6E3 Line Card Line Card Crash Recovery The following messages are associated with line card recovery: Error Message 00:00:06:% LC-3-RECOVERY: Line card (slot ) recovery in progress Error Message 00:00:06:% LC-3-EXCESSERRORS: Errors seen on the line card (slot %d) exceeds the error threshold When the 6E3 line card encounters any of the nonrecoverable errors listed below, the line card is deactivated and must be restarted by performing a CLI-controlled OIR or physically remov
Chapter 4 Configuring the 6E3 Line Card DSU Link Doesn’t Work DSU Link Doesn’t Work Symptom The link between the 6E3 line card and digitial link DSU (DL3100E) doesn't work when subrates have been configured. Pings don't go through. Note This is an intermittent problem that occurs with the DL3100E DSU. Other supported external CSU and DSU products are not affected.
