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Troubleshooting the Router A-1

A P P E N D I X

Troubleshooting the Router

This appendix contains information about how to isolate problems with the router and
includes the following sections:

•

Isolating Problems

•

Reading the LEDs

Isolating Problems

The key to problem solving in this system is to try to isolate the problem to a specific
subsystem. By comparing what the system is doing to what it should be doing, the task of
isolating the problem is greatly simplified.

When problem solving, consider the following subsystems:

•

Power and cooling systems—The power supply, power cable, and fan

•

Ports and cables—The ports on the rear panel of the router and the cables that connect
to them

Содержание CPA2501

Страница 1: ...rmation refer to the Cisco IOS configuration guide and command reference publications These publications are available on the documentation CD that came with your router or you can order printed copies Refer to the Ordering Documentation section in the Overview of the Router chapter for ordering information This publication describes a variety of router models that are similar in functionality but...

Страница 2: ...pter 4 Configuring the Router discusses how to configure your router using the prompt driven System Configuration Dialog configuration mode or AutoInstall This chapter also provides some basic information about how to use the Cisco IOS software Appendix A Troubleshooting the Router discusses how to isolate problems and read the LEDs Appendix B Maintaining the Router discusses selected maintenance ...

Страница 3: ... the described action saves time You can save time by performing the action described in the paragraph Caution Means reader be careful In this situation you might do something that could result in equipment damage or loss of data Warning This warning symbol means danger You are in a situation that could cause bodily injury Before you work on any equipment you must be aware of the hazards involved ...

Страница 4: ...xviii Router Installation and Configuration Guide Conventions ...

Страница 5: ...iffer in the number of interfaces supported 1 AUI attachment unit interface 2 ISDN Integrated Services Digital Network 3 BRI Basic Rate Interface 4 A CPA2515 model is not available Table 1 1 Summary of Router Interfaces Model Ethernet AUI1 DB 15 Token Ring DB 9 Serial DB 60 ISDN2 BRI3 RJ 45 Cisco 2501 CPA2501 1 2 Cisco 2502 CPA2502 1 2 Cisco 2503 CPA2503 1 2 1 Cisco 2504 CPA2504 1 2 1 Cisco 2513 C...

Страница 6: ...DRAM for main memory and shared memory Nonvolatile random access memory NVRAM for storing configuration information Flash memory for running the Cisco IOS software EIA TIA 232 console port for local system access using a console terminal EIA TIA 232 auxiliary port for remote system access using a modem Note EIA TIA 232 and EIA TIA 449 were known as recommended standards RS 232 and RS 449 before th...

Страница 7: ...rnet AUI LED Ethernet AUI port DB 15 Console port RJ 45 Auxiliary port RJ 45 On off switch Power Synchronous serial LEDs Synchronous serial ports DB 60 System OK LED H6585 Token Ring port DB 9 Console port RJ 45 Auxiliary port RJ 45 On off switch Power Synchronous serial ports DB 60 Token Ring LED Synchronous serial LEDs System OK LED ...

Страница 8: ...wer Synchronous serial ports DB 60 Console port RJ 45 ISDN BRI port RJ 45 Auxiliary port RJ 45 Ethernet AUI LED Synchronous serial LEDs ISDN BRI LED System OK LED On off switch Power On off switch H6587 Token Ring port DB 9 Synchronous serial ports DB 60 Token Ring LED Synchronous serial LEDs System OK LED ISDN BRI LED Console port RJ 45 ISDN BRI port RJ 45 Auxiliary port RJ 45 ...

Страница 9: ... Ethernet AUI port DB 15 Synchronous serial ports DB 60 Token Ring LED Power On off switch Ethernet AUI LED Synchronous serial LEDs System OK LED Console port RJ 45 Auxiliary port RJ 45 Synchronous serial ports DB 60 On off switch Power H6589 Ethernet AUI ports DB 15 Ethernet AUI LEDs Synchronous serial LEDs System OK LED Console port RJ 45 Auxiliary port RJ 45 ...

Страница 10: ...44 x 44 45 x 26 82 cm one rack unit Weight 10 lb 4 5 kg Input voltage AC power supply Current Frequency Power dissipation 100 to 240 VAC 1 2 to 0 6A 50 60 Hz 40W maximum 135 5 Btus1 hr Input voltage DC power supply Current Power dissipation 40W 40 to 72 VDC 1 5 to 1 0A 40W maximum 135 5 Btus hr Processor 20 MHz Motorola 68EC030 On off switch Power H6590 System OK LED Token Ring LEDs Synchronous se...

Страница 11: ...EIA TIA 449 V 35 and X 21 The EIA 530 standard is supported in DTE mode only 4 External network terminal 1 NT1 device required Interfaces See Table 1 1 for a list of interfaces supported on each router model Ethernet AUI IEEE2 802 3 DB 15 Token Ring IEEE 802 5 DB 9 Synchronous serial3 DB 60 ISDN BRI RJ 45 4 Console RJ 45 Auxiliary RJ 45 Operating environment 32 to 104 F 0 to 40 C Nonoperating temp...

Страница 12: ...otes 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 ...

Страница 13: ...O to obtain general information about Cisco Systems Cisco products or upgrades If CCO is not accessible contact 800 553 6387 408 526 7208 or cs rep cisco com Ordering Documentation Documentation for Cisco products is available in three forms on a CD ROM printed books and on the World Wide Web You have the option of subscribing to the documentation CD through an update service Or you can order prin...

Страница 14: ...1 10 Router Installation and Configuration Guide Ordering Documentation ...

Страница 15: ...ow these guidelines to ensure general safety Keep the chassis area clear and dust free during and after installation Put the removed chassis cover in a safe place Keep tools away from walk areas where you and others could fall over them Do not wear loose clothing that could get caught in the chassis Fasten your tie or scarf and roll up your sleeves Wear safety glasses if you are working under any ...

Страница 16: ...y power OFF switch for the room in which you are working Then if an electrical accident occurs you can act quickly to turn OFF the power Power OFF the router and unplug the power cord before doing the following Installing or removing a chassis Working near power supplies Warning Before working on a chassis or working near power supplies unplug the power cord on AC units disconnect the power at the...

Страница 17: ...dical aid Otherwise assess the condition of the victim and then call for help Determine if the person needs rescue breathing or external cardiac compressions then take appropriate action Preventing Electrostatic Discharge Damage Electrostatic discharge ESD can damage equipment and impair electrical circuitry It occurs when electronic components are improperly handled and can result in complete or ...

Страница 18: ...ations remember the precautions described in the next section Preventive Site Configuration to help avoid equipment failures and reduce the possibility of environmentally caused shutdowns If you are experiencing shutdowns or unusually high errors with your existing equipment these precautions may help you isolate the cause of failures and prevent future problems Preventive Site Configuration The f...

Страница 19: ...sition of the chassis when it is seated all the way into the rack In an enclosed rack with a ventilation fan in the top excessive heat generated by equipment near the bottom of the rack can be drawn upward and into the intake ports of the equipment above it in the rack Ensure that you provide adequate ventilation for equipment at the bottom of the rack Baffles can help to isolate exhaust air from ...

Страница 20: ...rnational is used on the phase conductors all current carrying conductors To see translated versions of this warning refer to the Regulatory Compliance and Safety Information document that accompanied your router Preparing to Connect to a Network When setting up your router consider distance limitations and potential electromagnetic interference EMI as defined by the EIA Warning The Ethernet Token...

Страница 21: ...naccessible to user contact Do not attempt to tamper with or open any public telephone operator PTO provided equipment or connection hardware Any hardwired connection other than by a nonremovable connect one time only plug must be made only by PTO staff or suitably trained engineers To see translated versions of this warning refer to the Regulatory Compliance and Safety Information document that a...

Страница 22: ...clock signal that paces the communications between the device and the router A DTE device does not provide a clock signal DTE devices usually connect to DCE devices The documentation that came with the device should indicate whether it is a DTE or DCE device Some devices have a jumper to select either mode If you cannot find the information in the documentation refer to Table 2 2 to help you selec...

Страница 23: ...signaling standard supports unbalanced circuits at signal speeds up to 64 kbps Balanced drivers allow EIA TIA 449 signals to travel greater distances than the EIA TIA 232 signals Table 2 4 lists the maximum speeds and distances for EIA TIA 449 V 35 X 21 and EIA 530 signals Table 2 3 EIA TIA 232 Speed and Distance Limitations Data Rate Baud Distance Feet Distance Meters 2400 200 60 4800 100 30 9600...

Страница 24: ...h connects to the serial port on the rear panel of the router The other end of the serial transition cable is available with the connector appropriate for the standard you specify The documentation for the device you want to connect should indicate the standard used for that device The synchronous serial port can be configured as DTE or DCE except EIA 530 which is DTE only depending on the attache...

Страница 25: ...is not recommended because of the small size of the pins on the DB 60 serial connector cable pinouts are provided in the appendix Cable Specifications To order a cable refer to the section Obtaining Service and Support in the Overview of the Router chapter Router connections EIA TIA 449 V 35 X 21 Network connections at the modem or CSU DSU H2485 EIA TIA 232 EIA 530 ...

Страница 26: ...e available with a DB 25 plug or receptacle in either DTE or DCE mode To order a cable refer to the section Obtaining Service and Support in the Overview of the Router chapter Figure 2 2 EIA TIA 232 Serial Transition Cable Connectors Network End EIA TIA 449 Connections The EIA TIA 449 standard which supports balanced and unbalanced transmissions is a faster up to 2 Mbps version of the EIA TIA 232 ...

Страница 27: ...rview of the Router chapter Figure 2 3 EIA TIA 449 Serial Transition Cable Connectors Network End V 35 Connections The V 35 standard is recommended for speeds up to 48 kbps although in practice it is used successfully at 4 Mbps The network end of the V 35 serial transition cable not included provides a standard 34 pin Winchester type connector as shown in Figure 2 4 The end that connects to the se...

Страница 28: ...s and as a result requires fewer circuits and a smaller connector than EIA TIA 232 The network end of the X 21 serial transition cable not included is a standard DB 15 connector as shown in Figure 2 5 The end that connects to the serial port on the rear panel of the router has a DB 60 connector X 21 cables are available with a plug or receptacle in either DTE or DCE mode To order a cable refer to ...

Страница 29: ...connections as shown in Figure 2 6 The end that connects to the serial port on the rear panel of the router has a DB 60 connector To order a cable refer to the section Obtaining Service and Support in the Overview of the Router chapter Figure 2 6 EIA 530 Serial Transition Cable Connector Network End Ethernet Connections The IEEE has established Ethernet as standard 802 3 The most common Ethernet i...

Страница 30: ...r the Token Ring port pinouts Console and Auxiliary Port Connections Your router includes an asynchronous serial console and an auxiliary port The console and auxiliary ports provide access to the router either locally with a console terminal or remotely with a modem This section discusses important cabling information to consider before connecting a console terminal an ASCII terminal or PC runnin...

Страница 31: ...oes not support hardware flow control For detailed information about installing a console terminal see the section Connecting to the Console Port in the chapter Installing the Router See the appendix Cable Specifications for cable and port pinouts Auxiliary Port Connections Your router includes an EIA TIA 232 asynchronous serial auxiliary port RJ 45 that supports hardware flow control A cable and ...

Страница 32: ...2 18 Router Installation and Configuration Guide Where to Go Next ...

Страница 33: ...g Up the Chassis Connecting the DC Power Supply Connecting to a Network Connecting the Console Terminal and Modem What to Do after Installing the Router Hardware Warning Only trained and qualified personnel should be allowed to install or replace this equipment To see translated versions of this warning refer to the Regulatory Compliance and Safety Information document that accompanied your router...

Страница 34: ...for connection to the ISDN BRI port Note For cable ordering information refer to the section Obtaining Service and Support in the Overview of the Router chapter Ethernet 10BaseT hub or PC with a network interface card for connection to the Ethernet AUI LAN port Token Ring MAU for connection to the Token Ring LAN port CSU DSU or other DCE device for connection to the synchronous serial interface NT...

Страница 35: ... sections are as follows Setting the Chassis on a Desktop Rack Mounting the Chassis Wall Mounting the Chassis Setting the Chassis on a Desktop Before setting the router on a desktop shelf or other flat secure surface perform the following steps to install the rubber feet Step 1 Locate the rubber feet on the black adhesive strip that shipped with the chassis See Figure 3 1 Figure 3 1 Identifying th...

Страница 36: ...hesive strip and place them adhesive side down onto the five round recessed areas on the bottom of the chassis See Figure 3 2 Figure 3 2 Installing the Rubber Feet Step 4 Place the router right side up on a flat smooth secure surface Caution Do not place anything on top of the router that weighs more than 10 pounds 4 5 kg Excessive weight on top could damage the chassis Fan H4795 ...

Страница 37: ...gure 3 3 Figure 3 3 Identifying the Brackets Attaching the Brackets To install the chassis in a rack attach the brackets in one of the following ways With the front panel forward see Figure 3 4 With the rear panel forward see Figure 3 5 In a center mount telco rack see Figure 3 6 Note The illustrations that follow show how to connect the bracket to one side of the chassis The second bracket connec...

Страница 38: ...is Figure 3 4 Bracket Installation Front Panel Forward Figure 3 5 Bracket Installation Rear Panel Forward Figure 3 6 Telco Bracket Installation Rear Panel Forward H7821 19 in brackets 24 in brackets H6329 19 in brackets 24 in brackets H6330 19 in brackets 24 in brackets ...

Страница 39: ... screws you provide attach the chassis to the rack as shown in Figure 3 7 Figure 3 7 Attaching the Chassis to a Rack Rear Panel Forward Shown Wall Mounting the Chassis Use the small brackets for use with a 19 inch rack to wall mount the chassis The small brackets provide the most stable position for the chassis H6331 19 in brackets 24 in brackets ...

Страница 40: ...nchors that you provide We recommend the following For the best support of the chassis and cables attach the brackets so that the screws align with a vertical wall stud See Figure 3 9 This position will prevent the chassis from pulling away from the wall when cables are attached For the best ventilation of the chassis mount the chassis with the power supply and fan at the top Make sure there is cl...

Страница 41: ...Installing the Router 3 9 Setting Up the Chassis Figure 3 9 Wall Mounting the Chassis H6572 TOKEN RING ...

Страница 42: ...l through the use of a special tool lock and key or other means of security and is controlled by the authority responsible for the location To see translated versions of the warning refer to the Regulatory Compliance and Safety Information document that accompanied your router DC Power Specifications The DC power supply is intended for use in DC operating environments Table 3 1 lists the power sup...

Страница 43: ...his product is intended for installation in restricted access areas and is approved for use with 14 AWG copper conductors only The installation must comply with all applicable codes Take the following steps to wire the terminal block Step 1 Attach the appropriate lugs at the wire end of the power supply cord Step 2 Wire the DC power supply to the terminal block as shown in Figure 3 10 Warning The ...

Страница 44: ...allation and Configuration Guide Connecting the DC Power Supply Figure 3 10 DC Power Supply Connections Terminal block Terminal block H2679 Negative Input 40 72V Current 1 5 1 0A Watts 40W On off switch Positive Ground ...

Страница 45: ... this warning refer to the Regulatory Compliance and Safety Information document that accompanied your router Connecting to a Network This section explains how to connect the router to your network The Ethernet or Token Ring ports are used to connect the router to a LAN The synchronous serial and ISDN ports are used to connect the router to a WAN The cables required to connect the router to a netw...

Страница 46: ...ect a transceiver directly to the Ethernet AUI port Note If your Ethernet connection requires jackscrews remove the slide latch assembly from the AUI connector and attach the jackscrews provided Figure 3 11 Connecting an Ethernet Transceiver TOKEN RING H6567 Ethernet AUI port DB 15 with jackscrews or slide latch Ethernet AUI cable not supplied Router Ethernet transceiver BNC connector To thin Ethe...

Страница 47: ... to a MAU as shown in Figure 3 12 To ensure agency compliance with electromagnetic emissions requirements EMI ensure that the lobe cable is shielded Figure 3 12 Connecting a MAU H6568 TOKEN RING Standard IEEE 802 5 connector Token Ring port DB 9 Token Ring lobe cable not provided MAU Router ...

Страница 48: ...t to run AutoInstall to download a configuration file from a TFTP server It can take several minutes for the router to determine that the necessary files are not in place for AutoInstall to begin For more information about AutoInstall refer to the Cisco IOS configuration guide which is available on the documentation CD that accompanied your router Note The synchronous serial port supports the foll...

Страница 49: ...the power cable to the router and the power source SERIAL 2 A S SERIAL 3 A S 10bT ETHERNET 0 ACT AUI BRI 0 CONSOLE AUX SERIAL 4 A S SERIAL 0 SERIAL 5 A S SERIAL 1 SERIAL 6 A S SERIAL 7 A S SERIAL 8 A S LINK PWR SERIAL 9 A S Input 100 240VAC Freq 50 60HZ Current 1 2 0 6 A Watts 40W ISDN BRI port RJ 45 H6574 NT1 device Router Straight through RJ 45 to RJ 45 cable S T interface ...

Страница 50: ...th a modem Connecting to the Console Port Take the following steps to connect a terminal an ASCII terminal or a PC running terminal emulation software to the console port on the router Step 1 Connect the terminal using the thin flat RJ 45 to RJ 45 roll over cable looks like a telephone cable and an RJ 45 to DB 9 or RJ 45 to DB 25 adapter labeled TERMINAL included with the router See Figure 3 15 St...

Страница 51: ...r 3 19 Connecting the Console Terminal and Modem Figure 3 15 Connecting a Console Terminal TOKEN RING Router Console port connector RJ 45 RJ 45 roll over cable H6570 PC AUX SER 0 ETH OK LAN RJ 45 to DB 25 adapter I O card ...

Страница 52: ...hat your modem and the auxiliary port on the router are configured for the same transmission speed 38400 baud is typical and hardware flow control with Data Carrier Detect DCD and Data Terminal Ready DTR operations Warning This equipment is intended to be grounded Ensure that the host is connected to earth ground during normal use To see translated versions of this warning refer to the Regulatory ...

Страница 53: ...oceed to the Troubleshooting the Router appendix Proceed to the next chapter Configuring the Router for initial software configuration information Note The Cisco configuration guide and command reference publications provide additional software configuration information These publications are available on the documentation CD that came with your router or you can order printed copies Refer to the ...

Страница 54: ...3 22 Router Installation and Configuration Guide What to Do after Installing the Router Hardware ...

Страница 55: ... Getting More Information This chapter provides minimum software configuration information it is not meant as comprehensive router configuration instructions Detailed software configuration information is available in the Cisco IOS configuration guide and command reference publications These publications are available on the documentation CD that came with your router or you can order printed copi...

Страница 56: ...ode which is used to install or upgrade a Cisco IOS image 4 If a valid Cisco IOS image is found then the router searches for a valid configuration file 5 If a valid configuration file is not found in NVRAM the router runs the System Configuration Dialog so you can configure it manually For normal router operation there must be a valid Cisco IOS image in Flash memory and a configuration file in NVR...

Страница 57: ...ave a configuration file stored in NVRAM It can take several minutes for the router to determine that AutoInstall is not connected to a remote TCP IP host If your router does not have a configuration setup file and you are not using AutoInstall the router will automatically start the setup command facility An interactive dialog called the System Configuration Dialog appears on the console screen T...

Страница 58: ...e port are 9600 baud 8 data bits no parity and 2 stop bits After about 30 seconds information similar to the following is displayed on the console screen Note The messages displayed vary depending on the interfaces on the rear panel of the router and the Cisco IOS release and feature set you selected The screen displays in this section are for reference only and may not exactly reflect the screen ...

Страница 59: ...0 data base 0x00001000 Cisco 25XX 68030 processor revision A with 4092K 2048K bytes of memory Processor board ID 00000000 Bridging software SuperLAT software copyright 1990 by Meridian Technology Corp X 25 software Version X X NET2 BFE and GOSIP compliant TN3270 Emulation software copyright 1994 by TGV Inc Basic Rate ISDN software Version X X X Ethernet IEEE 802 3 interface 2 Serial network interf...

Страница 60: ...ypical configuration follows Configuring global parameters Enter host name Router Next you are prompted to enter an enable secret password There are two types of privileged level passwords Enable secret password a very secure encrypted password Enable password a less secure nonencrypted password The enable password is used when the enable secret password does not exist For maximum security be sure...

Страница 61: ... and Internetwork Packet Exchange IPX Configure the appropriate protocols for your router Configure Vines no Configure LAT no Configure AppleTalk no yes Multizone networks no yes Configure DECnet no Configure IP yes Configure IGRP routing yes Your IGRP autonomous system number 1 15 Configure CLNS no Configure bridging no Configure IPX no yes Configure XNS no Configure Apollo no Step 9 If your rout...

Страница 62: ...ace BRI0 Is this interface in use yes Configure IP on this interface yes IP address for this interface 172 16 71 1 Number of bits in subnet field 0 8 Class B network is 172 16 0 0 8 subnet bits mask is 255 255 255 0 Table 4 1 ISDN Switch Types Country ISDN Switch Type Description Australia basic ts013 Australian TS013 switches Europe basic 1tr6 German 1TR6 ISDN switches basic nwnet3 Norwegian NET3...

Страница 63: ...or Token Ring Interfaces The Ethernet and Token Ring interfaces are configured to allow connection to a LAN To configure the interface parameters you need to know your Ethernet or Token Ring interface network addresses Take the following steps to configure an Ethernet or Token Ring interface to allow communication over a LAN Step 1 Press Return or enter yes to configure the LAN interface Configuri...

Страница 64: ...r has been configured take the following steps to configure the synchronous serial interfaces Step 1 Press Return or enter yes to configure serial port 0 Configuring interface Serial0 Is this interface in use yes Step 2 Determine which protocols you want on the synchronous serial interface and enter the appropriate responses In the following example the system is configured for IP AppleTalk and IP...

Страница 65: ...cable range 4 5 AppleTalk zone name myzone ZZ Serial AppleTalk additional zone name Configure IPX on this interface no yes IPX network number 3 B003 Step 4 The configuration you entered is now displayed and you are asked if you want to use the displayed configuration If you enter no you will lose the configuration information you just entered and you can begin the configuration again If you enter ...

Страница 66: ...u will see the user EXEC prompt Router Enter the enable command to enter privileged EXEC mode You can only make configuration changes in privileged EXEC mode Router enable The prompt changes to the privileged EXEC prompt Router Step 4 Enter the configure terminal command at the privileged EXEC prompt to enter configuration mode Router configure terminal You can now enter any changes you want to th...

Страница 67: ...les The TCP IP host may exist anywhere on the network as long as the following two conditions are maintained 1 The host must be on the remote side of the router s synchronous serial connection to the WAN 2 User Datagram Protocol UDP broadcasts to and from the router and the TCP IP host must be enabled This functionality is coordinated by your system administrator at the site where the TCP IP host ...

Страница 68: ...ollowing sections Cisco IOS Modes of Operation Getting Context Sensitive Help Saving Configuration Changes Cisco IOS Modes of Operation The Cisco IOS software provides access to several different command modes Each command mode provides a different group of related commands For security purposes the Cisco IOS software provides two levels of access to commands user and privileged The unprivileged u...

Страница 69: ... privileged level Log in Router Privileged EXEC Privileged EXEC commands set operating parameters The privileged command set includes those commands contained in user EXEC mode and also the configure command through which you can access the remaining command modes Privileged EXEC mode also includes high level testing commands such as debug From user EXEC mode enter the enable EXEC command Router G...

Страница 70: ... for more information Interface configuration Interface configuration commands modify the operation of an interface such as an Ethernet Token Ring or serial port Many features are enabled on a per interface basis Interface configuration commands always follow an interface global configuration command which defines the interface type From global configuration mode enter the interface type number co...

Страница 71: ...eminds you which keywords or arguments are applicable based on the command keywords and arguments you have already entered Router configure memory Configure from NV memory network Configure from a TFTP network host terminal Configure from the terminal cr You can also abbreviate commands and keywords by entering just enough characters to make the command unique from other commands For example you c...

Страница 72: ...figuration Router enable Router copy startup config running config To erase both configuration files and start over enter the write erase and reload commands Router enable Router write erase Router reload Caution This command sequence will erase the entire router configuration in RAM and NVRAM and reload the router Configuring ISDN This section describes a typical ISDN configuration for one or two...

Страница 73: ... and password are case sensitive and must match the host name and password of the target router even if it is not a Cisco router Router configure terminal Router config hostname currentrouter Router config username targetrouter password abc Step 3 Enter the isdn switch type command to configure the ISDN switch type such as basic 5ess basic dms100 or basic ni1 Refer to Table 4 1 earlier in this cha...

Страница 74: ...ation ppp Router config if ppp authentication chap Step 8 Enter the load threshold or ppp multilink command to set up a second B channel For bandwidth on demand enter the load threshold command to set the ISDN load threshold The load threshold determines the percentage of network load at which the second ISDN B channel is activated The value ranges from 1 to 255 100 percent In the following exampl...

Страница 75: ...d protocols permitted to access the router Router config dialer list groupnumber protocol protocol_type permit Step 13 Configure a static route to allow connection to the target router s LAN Enter the IP address and subnet mask of the target router s LAN interface and the IP address of the target router s BRI port Router config ip route targetrouter_ipnetwork subnetmask targetBRIport_ipaddress Ste...

Страница 76: ...it branch1 config dialer list 1 protocol ip permit branch1 config if ip route 172 16 0 0 255 255 0 0 172 16 71 2 branch1 config if ip route 0 0 0 0 172 16 71 2 branch1 config exit branch1 copy running config startup config branch1 Router enable password pail2 Router config term Router config hostname main1 main1 config username branch1 password secret1 main1 config isdn switch type basic dms100 ma...

Страница 77: ... one router to another If there is a problem with network connectivity refer to the section Reading the LEDs in the appendix Troubleshooting the Router and check the cable connections If there is still a problem check the router configuration Getting More Information For more information about router software configuration refer to the Cisco IOS configuration guide and command reference publicatio...

Страница 78: ...4 24 Router Installation and Configuration Guide Getting More Information ...

Страница 79: ...Problems The key to problem solving in this system is to try to isolate the problem to a specific subsystem By comparing what the system is doing to what it should be doing the task of isolating the problem is greatly simplified When problem solving consider the following subsystems Power and cooling systems The power supply power cable and fan Ports and cables The ports on the rear panel of the r...

Страница 80: ...OK LED is on Check the power supply Does the router constantly or intermittently reboot There might be a problem with either the processor or the software or a DRAM SIMM might be installed incorrectly For information about obtaining technical support refer to the section Obtaining Service and Support in the Overview of the Router chapter Troubleshooting the Ports Cables and Connections Check the f...

Страница 81: ... Router chapter Figure A 1 to Figure A 7 show the location of the LEDs on the rear panel of the routers The power LED at the right of the auxiliary port lights up when the system is working properly All of the other LEDs indicate activity by flickering When there is heavy activity on a port the LED might be ON constantly If an LED is not ON when the port is active and the cable is connected correc...

Страница 82: ...EDs Figure A 4 Model 2504 LEDs Figure A 5 Model 2513 LEDs H7579 Ethernet AUI LED Synchronous serial LEDs ISDN BRI LED System OK LED H7580 Token Ring LED Synchronous serial LEDs System OK LED ISDN BRI LED H7581 TOKEN RING Token Ring LED Ethernet AUI LED Synchronous serial LEDs System OK LED ...

Страница 83: ...ting the Router A 5 Reading the LEDs Figure A 6 Model 2514 LEDs Figure A 7 Model 2515 LEDs H7582 Ethernet AUI LEDs Synchronous serial LEDs System OK LED H7583 System OK LED Token Ring LEDs Synchronous serial LEDs ...

Страница 84: ...A 6 Router Installation and Configuration Guide Reading the LEDs ...

Страница 85: ...tion CD that accompanied the router Caution Before opening the chassis be sure that you have discharged all static electricity from your body and the power is OFF Before performing any procedures described in this appendix review the section Safety Recommendations in the chapter Preparing to Install the Router Warning Before working on a chassis or working near power supplies unplug the power cord...

Страница 86: ...ance and Safety Information document that accompanied your router Tools Required You will need the following tools to open the chassis Medium size flat blade screwdriver 1 4 inch 0 625 cm Size M 3 5 metric hex head nut driver optional Removing the Chassis Cover You must open the chassis to access the internal components When opening the chassis refer to Parts A and B in Figure B 1 Warning Before o...

Страница 87: ... a medium size flat blade screwdriver into the slots shown in Figure B 1 Part A and gently rotate the blade so that the top and bottom sections separate slightly Step 6 Holding the chassis with both hands position it as shown in Figure B 1 Part B Step 7 Pull the top section away from the bottom section See Figure B 1 Part B The fit is very snug so it may be necessary to pry the chassis sections ap...

Страница 88: ...of the system cards for models 2501 to 2504 and 2513 to 2515 respectively Figure B 2 System Card Layout Model 2501 2502 2503 and 2504 Routers H2351 Ethernet Serial 0 Serial 1 BRI Console Aux Shared memory fixed DRAM Primary memory DRAM SIMM System code SIMMs Flash or PROMs Boot ROMs FW2 FW1 CODE1 CODE0 A B DRAM Polarization notch Flash memory card socket ...

Страница 89: ...d Layout Model 2513 Router H3788 Token Ring Ethernet Console Aux Boot ROMs System code SIMMs Flash or PROMs Flash memory card slot Serial 0 Serial 1 J1 FW2 FW1 J9 J10 J11 J12 U3 Primary memory DRAM SIMM A B Boot ROM jumper J13 Note SIMMs removed for clarity CODE1 CODE0 ...

Страница 90: ...4 System Card Layout Model 2514 Router H3786 Ethernet Ethernet Console Aux Boot ROMs System code SIMMs Flash or PROMs A B CODE1 CODE0 Flash memory card slot Serial 0 Serial 1 Boot ROM jumper J1 J20 FW1 FW2 J9 J10 J11 J12 U3 Primary memory DRAM SIMM Note SIMMs removed for clarity ...

Страница 91: ... Layout Model 2515 Router H3787 Token Ring Token Ring Console Aux Boot ROMs System code SIMMs Flash or PROMs Flash memory card slot Serial 0 Serial 1 Boot ROM jumper J1 J20 FW1 FW2 J9 J11 J12 U3 Primary memory DRAM SIMM A B CODE1 CODE0 J10 Note SIMMs removed for clarity ...

Страница 92: ...milar to the following displays Cisco XXXX 68030 processor revision X with 4092K 2048K bytes of memory This line shows how much memory is installed in this example 4092K 2048K The first number represents primary memory and the second number represents shared memory Tools Required You will need the following tools to remove and replace the DRAM SIMM on the router Medium size flat blade screwdriver ...

Страница 93: ...vent damage do not press on the center of the SIMMs Handle each SIMM carefully Step 5 Position the new SIMM so that the polarization notch is located at the left end of the SIMM socket See Figure B 6 Figure B 6 Removing and Replacing the DRAM SIMM Polarization notch DRAM SIMM card Pull the tabs away with your thumbs bracing your forefingers against the posts Raise the SIMM to a vertical position H...

Страница 94: ...emove and replace the system code SIMMs on the router Medium size flat blade screwdriver 1 4 inch 0 625 cm ESD preventive wrist strap System code SIMM s Preparing to Install the System Code SIMM There are two system code Flash memory SIMM sockets on the system board If you want to install system code SIMMs in both sockets the SIMMs must be the same size For example if a 4 MB system code SIMM is al...

Страница 95: ...m the rear panel of the router Step 4 Attach an ESD preventive wrist or ankle strap Step 5 Open the chassis cover following the procedure in the section Opening the Chassis earlier in this appendix Step 6 Locate the system code SIMMs on the system card labeled CODE0 and CODE1 See Figure B 2 to Figure B 5 Step 7 If necessary remove the existing system code SIMM by pulling outward on the connector h...

Страница 96: ...et Caution To prevent damage note that some Flash memory SIMMs have the components mounted on the rear side therefore when inserting the SIMM always use the polarization notch as a reference and not the position of the components on the SIMM Pull the tabs away with your thumbs bracing your forefingers against the posts Raise the SIMM to a vertical position H6593 Connector edge of the system card F...

Страница 97: ...his section describes the procedure for closing the chassis by replacing the cover Tools Required You will need the following tools to replace the cover Medium size flat blade screwdriver 1 4 inch 0 625 cm Size M 3 5 hex head nut driver optional Replacing the Cover Take the following steps to replace the cover Step 1 Position the two chassis sections as shown in Figure B 8 Step 2 Referring to Figu...

Страница 98: ...assis edges Figure B 8 Replacing the Chassis Cover Step 3 When the two sections fit together snugly turn the chassis so that the bottom is facing up with the front panel toward you Step 4 Replace the cover screw See Figure B 1 Tighten the screw to no more than 8 or 9 inch pounds of torque Step 5 Reinstall the chassis on the wall rack desktop or table Step 6 Replace all cables H3560 Front Rear Left...

Страница 99: ...fer to the section Obtaining Service and Support in the Overview of the Router chapter for information about how to contact service Console and Auxiliary Port Signals and Pinouts Your router comes with a console and auxiliary cable kit which contains the cable and adapters you need to connect a console terminal an ASCII terminal or PC running terminal emulation software or modem to your router The...

Страница 100: ...ing a Roll Over Cable You can identify a roll over cable by comparing the two modular ends of the cable Holding the cables side by side with the tab at the back the wire connected to the pin on the outside of the left plug should be the same color as the wire connected to the pin on the outside of the right plug See Figure C 1 If your cable came from Cisco Systems pin 1 will be white on one connec...

Страница 101: ...onsole port the RJ 45 to RJ 45 roll over cable and the RJ 45 to DB 9 female DTE adapter labeled TERMINAL Figure C 2 Connecting the Console Port to a PC 1 Pin 1 is connected internally to Pin 8 Table C 1 Console Port Signaling and Cabling Using a DB 9 Adapter Console Port DTE RJ 45 to RJ 45 Roll Over Cable RJ 45 to DB 9 Terminal Adapter Console Device Signal RJ 45 Pin RJ 45 Pin DB 9 Pin Signal RTS ...

Страница 102: ... DB 25 female DTE adapter labeled TERMINAL Figure C 3 Connecting the Console Port to a Terminal 1 You can use the same cabling to connect a console to the auxiliary port 2 Pin 1 is connected internally to Pin 8 Table C 2 Console Port Signaling and Cabling Using a DB 25 Adapter Console Port DTE 1 RJ 45 to RJ 45 Roll Over Cable RJ 45 to DB 25 Terminal Adapter Console Device Signal RJ 45 Pin RJ 45 Pi...

Страница 103: ... the RJ 45 to RJ 45 roll over cable and the RJ 45 to DB 25 male DCE adapter labeled MODEM Figure C 4 Connecting the Auxiliary Port to a Modem 1 Pin 1 is connected internally to Pin 8 Table C 3 Auxiliary Port Signaling and Cabling Using a DB 25 Adapter Auxiliary Port DTE RJ 45 to RJ 45 Roll Over Cable RJ 45 to DB 25 Modem Adapter Modem Signal RJ 45 Pin RJ 45 Pin DB 25 Pin Signal RTS 11 8 4 RTS DTR ...

Страница 104: ...inouts Figure C 5 Ethernet AUI Cable Assembly Table C 4 Ethernet AUI Cable Pinouts DB 15 Pin Ethernet Circuit Signal 3 DO A Data Out Circuit A 10 DO B Data Out Circuit B 11 DO S Data Out Circuit Shield 5 DI A Data In Circuit A 12 DI B Data In Circuit B 4 DI S Data In Circuit Shield 2 CI A Control In Circuit A 9 CI B Control In Circuit B 1 CI S Control In Circuit Shield 6 VC Voltage Common 13 VP Vo...

Страница 105: ...is section provide assembly drawings and pinouts for the EIA 530 DCE EIA TIA 232 EIA TIA 449 V 35 and X 21 DTE and DCE cables which are used with the synchronous serial WAN port labeled SERIAL 1 Pins 2 4 7 and 8 are ground 2 600 mA maximum 14 VS Voltage Shield L25 and M25 Shell PG Protective Ground Table C 5 Token Ring Port DB 9 Pinouts 9 Pin1 Signal 1 Receive 3 5V2 5 Transmit 6 Receive 9 Transmit...

Страница 106: ...DCE to DTE Figure C 6 EIA 530 Serial Cable Assembly Table C 6 EIA 530 DTE Cable Pinouts DB 60 to DB 25 60 Pin Signal 25 Pin Signal Direction DTE DCE1 J1 11 J1 12 TxD RxD TxD RxD J2 2 J2 14 BA A TxD BA B TxD J1 28 J1 27 RxD TxD RxD TxD J2 3 J2 16 BB A RxD BB B RxD J1 9 J1 10 RTS CTS RTS CTS J2 4 J2 19 CA A RTS CA B RTS H1972 60 pin connector 25 pin connector Connectors are not to scale J2 13 J2 25 ...

Страница 107: ...d Shorted J1 48 J1 49 GND MODE_1 Shorted J1 5 J1 6 DCD DCD DCD DCD J2 8 J2 10 CF A DCD CF B DCD J1 24 J1 23 TxC RxC TxC RxC J2 15 J2 12 DB A TxC DB B TxC J1 26 J1 25 RxC TxCE RxC TxCE J2 17 J2 9 DD A RxC DD B RxC J1 44 J1 45 LL DCD Circuit_GND J2 18 J2 7 LL Circuit_ GND J1 7 J1 8 DTR DSR DTR DSR J2 20 J2 23 CD A DTR CD B DTR J1 13 J1 14 TxCE TxC TxCE TxC J2 24 J2 11 DA A TxCE DA B TxCE J1 51 J1 52...

Страница 108: ... DTE to DCE and indicates DCE to DTE Figure C 7 EIA TIA 232 Cable Assembly Table C 7 EIA TIA 232 DTE Cable Pinouts DB 60 to DB 25 60 Pin Signal Description Direction 25 Pin Signal J1 50 J1 51 J1 52 MODE_0 GND MODE_DCE Shorting group J1 46 Shield GND Single J2 1 Shield GND J1 41 Shield TxD RxD Twisted pair no 5 J2 2 Shield TxD H1972 60 pin connector 25 pin connector Connectors are not to scale J2 1...

Страница 109: ...d Circuit GND Twisted pair no 1 J2 7 Shield Circuit GND J1 33 Shield DCD LL Twisted pair no 12 J2 8 Shield DCD J1 37 Shield TxC NIL Twisted pair no 8 J2 15 Shield TxC J1 38 Shield RxC TxCE Twisted pair no 7 J2 17 Shield RxC J1 44 Shield LL DCD Twisted pair no 2 J2 18 Shield LTST J1 43 Shield DTR DSR Twisted pair no 3 J2 20 Shield DTR J1 39 Shield TxCE TxC Twisted pair no 6 J2 24 Shield TxCE Table ...

Страница 110: ...2 Shield TxD J1 41 Shield TxD RxD Twisted pair no 5 J2 3 Shield RxD J1 35 Shield CTS RTS Twisted pair no 10 J2 4 Shield RTS J1 42 Shield RTS CTS Twisted pair no 4 J2 5 Shield CTS J1 43 Shield DTR DSR Twisted pair no 3 J2 6 Shield DSR J1 45 Shield Circuit GND Twisted pair no 1 J2 7 Shield Circuit GND J1 44 Shield LL DCD Twisted pair no 2 J2 8 Shield DCD J1 39 Shield TxCE TxC Twisted pair no 7 J2 15...

Страница 111: ...E to DCE and indicates DCE to DTE Figure C 8 EIA TIA 449 Cable Assembly J1 34 Shield DSR DTR Twisted pair no 11 J2 20 Shield DTR J1 38 Shield RxC TxCE Twisted pair no 8 J2 24 Shield TxCE Table C 8 EIA TIA 232 DCE Cable Pinouts DB 60 to DB 25 Continued 60 Pin Signal Description Direction 25 Pin Signal H1973 60 pin connector J1 37 pin connector J2 Connectors are not to scale J2 19 J2 37 J2 20 J2 1 J...

Страница 112: ...2 SD SD J1 24 J1 23 TxC RxC TxC RxC Twisted pair no 9 J2 5 J2 23 ST ST J1 28 J1 27 RxD TxD RxD TxD Twisted pair no 11 J2 6 J2 24 RD RD J1 9 J1 10 RTS CTS RTS CTS Twisted pair no 5 J2 7 J2 25 RS RS J1 26 J1 25 RxC TxCE RxC TxCE Twisted pair no 10 J2 8 J2 26 RT RT J1 1 J1 2 CTS RTS CTS RTS Twisted pair no 1 J2 9 J2 27 CS CS J1 44 J1 45 LL DCD Circuit_GND Twisted pair no 12 _ J2 10 J2 37 LL SC J1 3 J...

Страница 113: ...le J2 1 Shield GND J1 28 J1 27 RxD TxD RxD TxD Twisted pair no 11 J2 4 J2 22 SD SD J1 13 J1 14 TxCE TxC TxCE TxC Twisted pair no 7 J2 5 J2 23 ST ST J1 11 J1 12 TxD RxD TxD RxD Twisted pair no 6 J2 6 J2 24 RD RD J1 1 J1 2 CTS RTS CTS RTS Twisted pair no 1 J2 7 J2 25 RS RS J1 24 J1 23 TxC RxC TxC RxC Twisted pair no 9 J2 8 J2 26 RT RT J1 9 J1 10 RTS CTS RTS CTS Twisted pair no 5 J2 9 J2 27 CS CS J1 ...

Страница 114: ...d indicates DCE to DTE J1 7 J1 8 DTR DSR DTR DSR Twisted pair no 4 J2 11 J2 29 DM DM J1 3 J1 4 DSR DTR DSR DTR Twisted pair no 2 J2 12 J2 30 TR TR J1 5 J1 6 DCD DCD DCD DCD Twisted pair no 3 J2 13 J2 31 RR RR J1 26 J1 25 RxC TxCE RxC TxCE Twisted pair no 10 J2 17 J2 35 TT TT J1 15 J1 16 Circuit_GND Circuit_GND Twisted pair no 8 _ _ J2 19 J2 20 SG RC Table C 10 EIA TIA 449 DCE Cable Pinouts DB 60 t...

Страница 115: ...1 50 J1 51 J1 52 MODE_0 GND MODE_DCE Shorting group J1 53 J1 54 J1 55 J1 56 TxC NIL RxC_TxCE RxD TxD GND Shorting group J1 46 Shield_GND Single J2 A Frame GND J1 45 Shield Circuit_GND Twisted pair no 12 J2 B Shield Circuit GND J1 42 Shield RTS CTS Twisted pair no 9 J2 C Shield RTS H1975 J1 46 J1 45 J1 16 J1 15 J1 1 J1 30 J1 31 J1 60 Connectors are not to scale 60 pin connector J1 15 pin connector ...

Страница 116: ...T J1 18 J1 17 TxD RxD TxD RxD Twisted pair no 1 J2 P J2 S SD SD J1 28 J1 27 RxD TxD RxD TxD Twisted pair no 5 J2 R J2 T RD RD J1 20 J1 19 TxCE TxC TxCE TxC Twisted pair no 2 J2 U J2 W SCTE SCTE J1 26 J1 25 RxC TxCE RxC TxCE Twisted pair no 4 J2 V J2 X SCR SCR J1 24 J1 23 TxC RxC TxC RxC Twisted pair no 3 J2 Y J2 AA SCT SCT Table C 12 V 35 DCE Cable Pinouts DB 60 to 34 Pin 60 Pin Signal Description...

Страница 117: ... CTS Twisted pair no 9 J2 D Shield CTS J1 43 Shield DTR DSR Twisted pair no 10 J2 E Shield DSR J1 44 Shield LL DCD Twisted pair no 11 J2 F Shield RLSD J1 34 Shield DSR DTR Twisted pair no 7 J2 H Shield DTR J1 33 Shield DCD LL Twisted pair no 6 J2 K Shield LT J1 28 J1 27 RxD TxD RxD TxD Twisted pair no 5 J2 P J2 S SD SD J1 18 J1 17 TxD RxD TxD RxD Twisted pair no 1 J2 R J2 T RD RD J1 26 J1 25 RxC T...

Страница 118: ...Cable Assemblies and Pinouts J1 22 J1 21 NIL RxC NIL RxC Twisted pair no 3 J2 V J2 X SCR SCR J1 20 J1 19 TxCE TxC TxCE TxC Twisted pair no 2 J2 Y J2 AA SCT SCT Table C 12 V 35 DCE Cable Pinouts DB 60 to 34 Pin Continued 60 Pin Signal Description Direction 34 Pin Signal ...

Страница 119: ...E Figure C 10 X 21 Cable Assembly Table C 13 X 21 DTE Cable Pinouts DB 60 to DB 15 60 Pin Signal Description Direction 15 Pin Signal J1 48 J1 47 GND MODE_2 Shorting group J1 51 J1 52 GND MODE_DCE Shorting group J1 46 Shield_GND Single J2 1 Shield GND J1 11 J1 12 TxD RxD TxD RxD Twisted pair no 3 J2 2 J2 9 Transmit Transmit H1974 60 pin connector J1 15 pin connector J2 Connectors are not to scale J...

Страница 120: ...isted pair no 4 J2 8 Shield Control GND Table C 14 X 21 DCE Cable Pinouts DB 60 to DB 15 60 Pin Signal Description Direction 15 Pin Signal J1 48 J1 47 GND MODE_2 Shorting group J1 46 Shield_GND Single J2 1 Shield GND J1 28 J1 27 RxD TxD RxD TxD Twisted pair no 6 J2 2 J2 9 Transmit Transmit J1 1 J1 2 CTS RTS CTS RTS Twisted pair no 1 J2 3 J2 10 Control Control J1 11 J1 12 TxD RxD TxD RxD Twisted pa...

Страница 121: ...cts of TE1 TA and NT2 functional groups 3 NT refers to network terminating layer 1 aspects of NT1 and NT2 functional groups J1 24 J1 23 TxC RxC TxC RxC Twisted pair no 4 J2 6 J2 13 Timing Timing J1 15 Shield Control_GND Twisted pair no 5 J2 8 Shield Control GND Table C 15 BRI Port RJ 45 Pinouts RJ 45 8 Pin1 TE2 NT3 Polarity 3 Transmit Receive 4 Receive Transmit 5 Receive Transmit 6 Transmit Receiv...

Страница 122: ...C 24 Router Installation and Configuration Guide ISDN BRI Port and Cable Pinouts ...

Страница 123: ... System Operation Installation Checklist Creating a Site Log Cabling Considerations Console and Auxiliary Port Considerations Network Connection Considerations Inspecting the System Safety Recommendations Follow these guidelines to ensure general safety Keep the chassis area clear and dust free during and after installation Put the removed chassis cover in a safe place Keep tools away from walk ar...

Страница 124: ...serious burns or can weld the metal object to the terminals To see translated versions of this warning refer to the appendix Translated Safety Warnings Locate the emergency power off switch for the room in which you are working Then if an electrical accident occurs you can act quickly to turn off the power Disconnect all power by turning off the power and unplugging the power cord before doing the...

Страница 125: ...result in complete or intermittent failures Always follow ESD prevention procedures when removing and replacing components Ensure that the chassis is electrically connected to earth ground Wear an ESD preventive wrist strap ensuring that it makes good skin contact Connect the clip to an unpainted surface of the chassis frame to safely channel unwanted ESD voltages to ground To properly guard again...

Страница 126: ...encing shutdowns or unusually high errors with your existing equipment these precautions may help you isolate the cause of failures and prevent future problems Preventive Site Configuration The following precautions will help you plan an acceptable operating environment for your multiport serial router and will help you avoid environmentally caused equipment failures Electrical equipment generates...

Страница 127: ...can be drawn upward and into the intake ports of the equipment above it in the rack Baffles can help to isolate exhaust air from intake air which also helps to draw cooling air through the chassis The best placement of the baffles depends on the airflow patterns in the rack which are found by experimenting with different arrangements Power Supply Considerations Check the power at your site to ensu...

Страница 128: ...ppendix Translated Safety Warnings Prerequisites for System Operation The multiport serial routers run system code from Flash memory single in line memory modules SIMMs With the proper system code image the multiport serial router can also run from dynamic random access memory DRAM however this operation requires a 4 MB memory upgrade installation of a 1 MB x 36 DRAM SIMM In addition operating sys...

Страница 129: ...ion checklist for site______________________________________________ Router name__________________________________________________________ Task Verified by Date Installation checklist copied Background information placed in Site Log Site power voltages verified Required tools available Additional equipment available Router received Optional UniverCD or printed documentation received Chassis compon...

Страница 130: ...h time a procedure is performed on the system update the Site Log to reflect the following Configuration changes Changes and updates to Cisco IOS software Maintenance schedules and requirements Corrective maintenance procedures performed Intermittent problems Related comments and notes Cabling Considerations When setting up your multiport serial router consider distance limitations and potential e...

Страница 131: ...m segment distance of 606 feet 185 m Token Ring Connections The distance limitations for the IEEE 802 5 specification indicate a maximum segment distance of 328 feet 100 m at a transmission rate of 4 or 16 Mbps for unshielded twisted pair UTP cable The distance limitation when using shielded twisted pair STP cabling is 1 640 feet 500 m Serial Connections As with all signaling systems EIA TIA 232 s...

Страница 132: ...49 signals These limits are also valid for V 35 and X 21 Table 2 2 EIA TIA 449 Speed and Distance Limitations Caution The EIA TIA 449 and V 35 interfaces support data rates up to 2 048 Mbps Exceeding this maximum could result in loss of data and is not recommended 38400 50 15 57600 25 7 6 115200 12 3 7 Data Rate Baud Distance Feet Distance Meters 2400 4 100 1 250 4800 2 050 625 9600 1 025 312 1920...

Страница 133: ...or labeled Terminal for connection to the console port For detailed information on installing the terminal see the section Connecting to the Console Port in the chapter Installing the Cisco Multiport Serial Routers Table B 1 in the appendix Cisco Multiport Router Cable Specifications lists the pinout for the console port The default parameters for the console port are 9600 baud 8 data bits no pari...

Страница 134: ...th ports are connected the 10BaseT port is active Use an Ethernet transceiver to connect multiport serial routers directly to the network You can use the following equipment to connect to the Ethernet AUI port An Ethernet AUI cable connected to a transceiver An Ethernet transceiver connected directly to the multiport serial router s AUI port The connection to the AUI port can be made using either ...

Страница 135: ...ched cable The EIA 530 interface is only configured as DTE All DTE serial ports require that external clocking be provided by a channel service unit data service unit CSU DSU or other DCE device You must use a special serial cable to connect a multiport serial router to a modem or CSU DSU This cable is available from Cisco and is usually ordered with the system The cable uses a DB 60 connector on ...

Страница 136: ...through the NT1 The common carrier will provide the NT1 connection worldwide except in North America where the NT1 is customer owned Warning Network hazardous voltages are accessible in the BRI cable If you detach the BRI cable detach the end away from the multiport serial router first to avoid possible electric shock Network hazardous voltages also are accessible on the system card in the area of...

Страница 137: ...be shipped in more than one container When you unpack each shipping container check the packing list to ensure that you received the following items Multiport serial router 6 foot 1 8 meter power cord Jackscrews for the AUI connector Console and auxiliary cabling kit two RJ 45 roll over cables one terminal adapter one DB 9 PC adapter and one modem adapter Optional equipment such as network interfa...

Страница 138: ...2 16 Cisco 2500 Series Multiport Serial Router User Guide Inspecting the System ...

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