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C H A P T E R

 Troubleshooting

3-1

3

Troubleshooting

This chapter describes problems that could occur with the Cisco 805 router hardware, 
reasons for the problems, and steps to solve the problems. The problems are grouped into 
the following states:

•

During first startup

•

After first startup

•

After router has been up and running

For more information on problems that could occur with the software, refer to the 

Cisco 805 Router Software Configuration Guide

.

Summary of Contents for 805 Series

Page 1: ...A 95134 1706 USA http www cisco com Cisco Systems Inc Corporate Headquarters Tel 800 553 NETS 6387 Fax 408 526 4000 408 526 4100 Cisco 805 Router Hardware Installation Guide Customer Order Number DOC 786372 Text Part Number 78 6372 02 ...

Page 2: ...e following measures Turn the television or radio antenna until the interference stops Move the equipment to one side or the other of the television or radio Move the equipment farther away from the television or radio Plug the equipment into an outlet that is on a different circuit from the television or radio That is make certain the equipment and the television or radio are on circuits controll...

Page 3: ...he Cisco 805 Router 2 1 Safety 2 1 Warnings 2 1 ESD 2 3 Required Equipment 2 4 Unpacking the Box 2 5 Installing the Router 2 6 Connecting an Ethernet Device 2 6 Connecting a Hub 2 7 Connecting a Server PC or Workstation 2 8 Connecting a Serial Device 2 10 Connecting a Terminal or PC 2 12 Connecting the Power Supply 2 13 Mounting the Router 2 14 Mounting the Router on a Table 2 14 Mounting the Rout...

Page 4: ...e You Call Your Cisco Reseller 3 5 Appendix A Selecting a Serial Cable A 1 How to Select a Serial Cable A 1 DTE or DCE A 2 Signaling Standards A 4 Connector Gender A 4 Serial Connection Example A 5 Serial Cable Part Numbers A 6 Appendix B Technical Specifications B 1 Appendix C Connector and Cable Specifications C 1 Connector Specifications C 1 Cable Specifications C 4 Index ...

Page 5: ...s serial cables that you need to understand to successfully install your router Conceptual information is usually in a separate section or appendix such as Appendix A Selecting a Serial Cable so that technicians who are not interested or already understand the topic can skip this information Organization This guide contains the following information Product Overview Describes the Cisco 805 router ...

Page 6: ...tain helpful suggestions or references to additional information and material Caution This symbol 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 be aware of the hazards involved with electrical circui...

Page 7: ...nden 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 Inf...

Page 8: ...sta 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 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 elkre...

Page 9: ...a terminal equipment This type of equipment connects to a data network through a DCE device such as a modem and typically uses clocking signals generated by the DCE For more information see the DTE or DCE section in Appendix A Selecting a Serial Cable DRAM Dynamic RAM Dynamic RAM that stores information that must be refreshed periodically in capacitors Flash memory The nonvolatile storage that can...

Page 10: ...lities to and from a computer system Also called an adapter SELV Safety extra low voltage A secondary circuit that under normal conditions has a voltage less than 42 4V peak or 42 Vdc Under a single fault condition this circuit should not exceed these values for longer than 0 2 seconds and should not exceed 71V peak or 120 Vdc straight through Ethernet cable A cable that wires a pin to its equival...

Page 11: ...er Cisco 805 Router Software Configuration Guide 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...

Page 12: ...w cisco com en US partner ordering Cisco Marketplace http www cisco com go marketplace Ordering Documentation You can find instructions for ordering documentation at this URL http www cisco com univercd cc td doc es_inpck pdi htm You can order Cisco documentation in these ways Registered Cisco com users Cisco direct customers can order Cisco product documentation from the Ordering tool http www ci...

Page 13: ...dents that involve Cisco products Register to receive security information from Cisco A current list of security advisories and notices for Cisco products is available at this URL http www cisco com go psirt If you prefer to see advisories and notices as they are updated in real time you can access a Product Security Incident Response Team Really Simple Syndication PSIRT RSS feed from this URL htt...

Page 14: ...d 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 Cisco Technic...

Page 15: ...st Tool is the fastest way to open S3 and S4 service requests S3 and S4 service requests are those in which your network is minimally impaired or for which you require product information After you describe your situation the TAC Service Request Tool provides recommended solutions If your issue is not resolved using the recommended resources your service request is assigned to a Cisco TAC engineer...

Page 16: ...ervice to satisfactory levels Severity 4 S4 You require information or assistance with Cisco product capabilities installation or configuration There is little or no effect on your business operations Obtaining Additional Publications and Information Information about Cisco products technologies and network solutions is available from various online and printed sources Cisco Marketplace provides a...

Page 17: ...ies the challenges facing these companies and the technologies to help solve them using real world case studies and business strategies to help readers make sound technology investment decisions You can access iQ Magazine at this URL http www cisco com go iqmagazine Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering professionals involved in designing devel...

Page 18: ...Related Documentation Cisco 805 Router Hardware Installation Guide xviii ...

Page 19: ... needs a connection to the corporate office In the small office to ISP network the small office is typically a small independent professional office such as a small architectural firm that needs to access information from the Internet Features Table 1 1 summarizes the features of the Cisco 805 router Table 1 1 Cisco 805 Feature Summary Feature Description 10BaseT Ethernet port Provides connection ...

Page 20: ...nector Locks power connector in place Wall mount feature Brackets on router bottom provide a way to mount router on wall or vertical surface 1 An additional 4 or 8 MB of Flash memory and DRAM can be added at the factory or later You can order upgrade kits and have qualified personnel add the memory The Cisco product number for the 4 MB Flash memory upgrade kit is MEM805 4U8F for the 8 MB Flash mem...

Page 21: ...port directly to a public network that follows the European Union standards If the symbol of suitability with an overlaid cross appears above a port you must not connect the port to a public network that follows the European Union standards Connecting the port to this type of public network can cause severe injury or damage your router OK LED Indicates router has power LAN LEDs Indicate packets ar...

Page 22: ...he button to NO HUB the router Ethernet connector crosses over the signals transmitted to and received from the yellow Ethernet cable For information on how the setting of an equivalent hub button can affect the setting of this router button refer to the Connecting an Ethernet Device section in Chapter 2 Installing the Cisco 805 Router 17282 Cisco 805 LINK HUB NO HUB ETHERNET 10 BASE T Cable lock ...

Page 23: ...s up Off when the Ethernet interface has been shut down RXD Received Ethernet Green Blinks when the Ethernet port receives a packet TXD Transmitted Ethernet Green Blinks when the Ethernet port sends a packet CD Carrier detect Serial Orange On when the serial interface is up and a carrier signal is detected Off when a carrier signal is not detected RXD Received Serial Orange Blinks when the serial ...

Page 24: ...LEDs Cisco 805 Router Hardware Installation Guide 1 6 ...

Page 25: ...outer Where to Go Next Safety This section contains information on warnings associated with using your router and on electrostatic discharge ESD Warnings Before installing the router read the following warnings Warning Only trained and qualified personnel should be allowed to install or replace this equipment Warning Read the installation instructions before you connect the system to its power sou...

Page 26: ...aws and regulations Warning If the symbol of suitability with an overlaid cross appears above a port you must not connect the port to a public network that follows the European Union standards Connecting the port to this type of public network can cause severe injury or damage your router Warning To avoid electric shock do not connect safety extra low voltage SELV circuits to telephone network vol...

Page 27: ...rs and dry atmosphere Always use the following ESD prevention guidelines when removing and replacing components Connect the chassis to earth ground with a wire that you provide Wear an ESD preventive wrist strap that you provide ensuring that it makes good skin contact Do not touch any exposed contact pins or connector shells of uncabled router ports If cables are connected at one end only do not ...

Page 28: ...nel service unit data service unit CSU DSU that you plan to connect to the serial port The serial cable that connects the router to the serial device For information on selecting and ordering the serial cable refer to Appendix A Selecting a Serial Cable The terminal or PC with which you plan to configure the software or troubleshoot the router If you plan to mount your router on a wall or other ve...

Page 29: ...sing or damaged contact your customer service representative Power cord black Desktop power supply Console cable light blue DB 9 to RJ 45 adapter for use with light blue console cable DB 25 to RJ 45 adapter for use with light blue console cable Ethernet cable yellow Product documentation Note A serial cable does not ship with the router For information on selecting and ordering the serial cable re...

Page 30: ...g 4 Connect the power supply 5 Mount the router 6 Verify the router installation Connecting an Ethernet Device You can connect the following devices to the Ethernet port A hub A server PC or workstation with a 10 or 10 100 Mbps NIC Table 2 1 lists the Ethernet devices you can connect to the router with the yellow Ethernet cable and the appropriate settings of the router HUB NO HUB button and the h...

Page 31: ...Router HUB NO HUB Button Setting Hub Button Setting1 1 Hub vendors choose different names for the button controlling cable selection This table uses the Cisco 1528 Micro Hub 10 100 with an MDI MDI X button as an example Determine the button name and setting for your particular hub Refer to your hub documentation for details Hub with equivalent to router HUB NO HUB button HUB in MDI in Hub with equ...

Page 32: ...o set the router HUB NO HUB button Follow the steps in Figure 2 4 to connect a server PC or workstation 17284 Cisco 1528 Micro Hub 10 100 Cisco 805 router 2 Connect yellow cable to yellow Ethernet port 1 Set HUB NO HUB button MDI MDI X 6X 7X 8X 1X 2X 3X 4X ETHERNET 1 SPEED 100BaseTX 10BaseT LED SOLID BLINK 2 3 4 5 6 7 8 3 Connect other end of cable to hub 4 If applicable check setting of hub equiv...

Page 33: ... 3 Connecting a Server PC or Workstation Cisco 805 router Cisco 805 LINK HUB NO HUB ETHERNET 10 BASE T SERIAL CONSOLE 17285 PC AUX SER 0 OK LAN ETH 3 Connect other end of cable to server PC or workstation 2 Connect yellow cable to yellow Ethernet port 1 Set HUB NO HUB button ...

Page 34: ...5 to connect a modem or CSU DSU Caution The Cisco 805 router does not support the Australian IUT requirement which specifies that the router must communicate for 1 2 hour after a power failure If a power failure occurs the Cisco 805 router stops communicating with other devices Table 2 2 Connecting a Serial Device Serial Device WAN Options WAN Encapsulation Framing Network Type Asynchronous modem ...

Page 35: ...vice Figure 2 4 Connecting a Modem or CSU DSU Cisco 805 router 1 Connect appropriate end of serial cable to dark blue serial port 2 Connect other end of cable to modem or CSU DSU Cisco 805 LINK HUB NO HUB ETHERNET 10 BASE T SERIAL CONSOLE Modem or CSU DSU 17286 ...

Page 36: ...oot problems with the router Follow the steps in Figure 2 6 Figure 2 5 Connecting Terminal or PC Cisco 805 router Cisco 805 LINK HUB NO HUB ETHERNET 10 BASE T SERIAL CONSOLE 3 17287 1 Connect light blue cable to light blue Console port 2 Connect other end of cable to either DB 9 to RJ 45 adapter or DB 25 to RJ 45 adapter 3 Connect DB 9 or DB 25 connector to terminal or PC DB X to RJ 45 adapter ...

Page 37: ...rger than 120 VAC 15A U S 240 VAC 16A international is used on the phase conductors all current carrying conductors Warning This equipment is intended to be grounded Ensure that the host is connected to earth ground during normal use Figure 2 6 Connecting the Power Supply Cisco 805 router Cisco 805 LINK HUB NO HUB ETHERNET 10 BASE T SERIAL CONSOLE 3 17288 2 Connect power supply cable 1 Press power...

Page 38: ...hat mates with a curved indentation on the enclosure bottom When stacking one of these routers on top of another this mating feature ensures that the routers are securely stacked Mounting the Router on a Wall You can mount your router on a wall or other vertical surface by using the molded mounting brackets on the router bottom and two number six 3 4 inch M3 5 x 20 mm screws You must provide the s...

Page 39: ...e downward to reduce strain on the cable connections The power supply must rest on a horizontal surface such as the floor or a table If the power supply is not supported it might place strain on the power supply cable and cause it to disconnect from the connector on the router back panel To mount the router follow the steps in Figure 2 9 The last page of this manual provides a template for measuri...

Page 40: ... a Wall 7 in 19 35 cm 17289 Wall mount screw Wall mount screw Wall Mounting brackets Front panel 1 Secure two screws 7 in 19 35 cm apart in a wall and in 0 32 cm from the wall 2 Hang router on screws 3 Place power supply on horizontal surface Maximum distance 6 ft 18 m 5 8 5 8 1 8 Screw in 0 32 cm 1 8 Wall ...

Page 41: ...mal Pattern Explanation If Abnormal Pattern OK On Power is supplied to the router Router completes self test procedure and begins operating If off refer to Chapter 3 Troubleshooting LINK On LINK LED is located on router back panel Ethernet device is connected If off toggle the HUB NO HUB button if set to HUB in reset to NO HUB out or vice versa 1 If still off refer to Chapter 3 Troubleshooting 1 F...

Page 42: ...Where to Go Next Cisco 805 Router Hardware Installation Guide 2 18 ...

Page 43: ...ter hardware reasons for the problems and steps to solve the problems The problems are grouped into the following states During first startup After first startup After router has been up and running For more information on problems that could occur with the software refer to the Cisco 805 Router Software Configuration Guide ...

Page 44: ...wing tasks in the following order 1 To make sure you have cabled the device correctly refer to Figure 2 3 or Figure 2 4 in Chapter 2 Installing the Cisco 805 Router 2 Make sure the connectors at both ends of the cable are securely seated 3 Make sure the cable is not physically damaged If it is order another cable from Cisco or replace it with a similar cable Improperly set router HUB NO HUB button...

Page 45: ...t the router is configured as a DTE Check the setting of the clock rate command to determine if it is set properly If a clock rate speed is not specified the router is configured as a DTE If a clock rate speed is specified the router is configured as a DCE Table 3 2 Problems After Router is Running Symptom Problem Solutions Problems with Ethernet connection The LINK LED on the back panel is off A ...

Page 46: ...or replace it with a similar cable CSU DSU configura tion has been lost or changed Check CSU DSU configuration If necessary reconfigure CSU DSU so that its settings match original provisioning parameters provided by your WAN service provider Problem with serial line or WAN service Contact your serial line or WAN service pro vider to determine if there is a problem Serial interface has been shut do...

Page 47: ...pter instruct you to contact your Cisco reseller Before you do so have the following information ready Router model and serial number on the back panel Maintenance agreement or warranty information Date you received your router Brief description of the problem Brief description of the steps you have taken to solve the problem ...

Page 48: ...Before You Call Your Cisco Reseller Cisco 805 Router Hardware Installation Guide 3 6 ...

Page 49: ... cable you must answer the following questions about the serial device that you plan to connect to the router serial port Is this device a data terminal equipment DTE or data communications equipment DCE device What signaling standard does the serial connector on the device require Is the serial connector on the device male or female Note The Cisco 805 Router serial interface is a basic serial int...

Page 50: ... documentation refer to Table A 1 This table summarizes serial devices that can be connected to the router serial port and whether the device is considered a DTE or DCE device The Cisco 805 router is a DTE device by default Table A 2 describes the type of cable needed to connect a DTE or DCE device to your router Table A 1 DTE and DCE Devices Serial Device DTE DCE Selectable DTE or DCE1 1 These se...

Page 51: ...Selecting a Serial Cable A 3 DTE or DCE DCE DTE Table A 2 Cable Type Needed to Connect Serial Devices Serial Device Type Cable Type Needed ...

Page 52: ...er serial port EIA TIA 232 EIA TIA 449 EIA TIA 530 EIA TIA 530A X 21 V 35 Check the documentation that ships with your serial device to determine the type of serial connector on your serial device Connector Gender If pins protrude from the base of a connector the connector is male If the connector has holes to accept the pins the connector is female A DTE device typically has a male connector whil...

Page 53: ...nd the CSU DSU or modem For more information on the cable type needed to connect a serial device refer to Table A 2 Given these characteristics the appropriate serial cable to connect the router and the CSU DSU or modem is a DTE V 35 male cable Note Some CSU DSUs have a proprietary serial connector that will not mate with a Cisco serial cable If this situation occurs you must provide an adapter pi...

Page 54: ...A 232 Female CAB SS 232FC DTE EIA TIA 232 Male CAB SS 232MT DCE EIA TIA 449 Female CAB SS 449FC DTE EIA TIA 449 Male CAB SS 449MT DCE EIA TIA 530 Female CAB SS 530FC DTE EIA TIA 530 Male CAB SS 530MT DCE EIA TIA 530A Female CAB SS 530AFC DTE EIA TIA 530A Male CAB SS 530AMT DCE X 21 Female CAB SS X21FC DTE X 21 Male CAB SS X21MT DCE V 35 Female CAB SS V35FC DTE V 35 Female CAB SS V35FT DCE V 35 Mal...

Page 55: ...3 in 5 1 x 24 6 x 21 1 cm Weight does not include desktop power supply 1 5 lbs 0 66 kg Environmental Operating Ranges Nonoperating temperature 4 to 149 F 20 to 65 C Nonoperating humidity 5 to 95 relative humidity Nonoperating altitude 0 to 15 000 ft 4570 m Operating temperature 32 to 104 F 0 to 40 C Operating humidity 10 to 85 relative humidity Operating altitude 0 to 10 000 ft 3000 m Power AC inp...

Page 56: ...mation on regulatory compliance refer to the Regulatory Compliance and Safety Information for the Cisco 805 Router document that shipped with your router Warning Ultimate disposal of this product should be handled according to all national laws and regulations ...

Page 57: ...et Table C 1 Console Table C 2 Serial basic Table C 3 Power Table C 4 Function 1 in Table C 1 describes how the connector functions when the HUB NO HUB button is in the HUB in position Function 2 describes how the connector functions when the HUB NO HUB button is in the NO HUB out position Table C 1 Ethernet Connector Pinouts RJ 45 Pin Function 1 Function 2 1 Transmit Receive 2 Transmit Receive 3 ...

Page 58: ... Unused Unused 8 Unused Unused Table C 2 Console Connector Pinouts RJ 45 Pin Function 1 Request to send 2 Data terminal ready 3 Transmit 4 Ground 5 Ground 6 Receive 7 Data set ready 8 Clear to send Table C 1 Ethernet Connector Pinouts RJ 45 continued Pin Function 1 Function 2 ...

Page 59: ...e transmit 18 I_Receive transmit 6 B_Data carrier detect data carrier detect 19 B_Data carrier detect data carrier detect 7 O_Data terminal ready data set ready 20 O_Data terminal ready data set ready 8 O_Request to send clear to send 21 MODE2 9 O_Request to send clear to send 22 MODE1 10 I_Clear to send request to send 23 MODE0 11 I_Clear to send request to send 24 MODEDCE 12 I_Data set ready dat...

Page 60: ...ecifications C 4 Cable Specifications Table C 5 provides Ethernet cable specifications The maximum distance for the Ethernet cable is 328 ft 100 m Table C 5 Ethernet Cable Specifications Type Category Shielding 10BaseT 3 4 or 5 Unshielded twisted pair UTP ...

Page 61: ...tacting 3 5 configuring software 2 17 connecting Ethernet devices 2 6 hub 2 7 PC 2 8 2 12 power supply 2 13 serial device 2 10 server 2 8 terminal 2 12 workstation 2 8 connector pinouts C 1 console port illustrated 1 4 consumption specifications B 1 conventions hazard vi D DRAM adding 1 2 E electrostatic discharge ESD preventing 2 3 equipment you provide 2 4 Ethernet cables types 1 4 Ethernet devi...

Page 62: ...cting 2 8 2 12 physical specifications B 1 port connector pinouts C 1 power connector illustrated 1 4 power problems 3 2 power specifications B 1 power supply connecting 2 13 power switch illustrated 1 4 R router unpacking 2 5 to 2 5 router damage preventing 2 3 S safety warnings 2 1 selecting serial cable A 1 serial cable 2 10 ordering A 6 selecting A 1 serial device connecting 2 10 serial port i...

Page 63: ...x 3 U unpacking the router 2 5 to 2 5 V voltage specifications B 1 W wall brackets illustrated 2 15 wall mounting 2 14 2 16 warning statements defined vi warnings installation 2 1 workstation connecting 2 8 ...

Page 64: ...Cisco 805 Router Hardware Installation Guide Index 4 ...

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