Cisco Systems 1760 manual Ethernet Network Cabling Guidelines, RJ-45 Pin Signal Direction, Tx+ Rx+

Page 78

Appendix B Cabling Specifications

Ethernet Network Cabling Guidelines

Table B-1 Straight-Through Ethernet Cable (RJ-45-to-RJ-45) Pinouts

RJ-45 Pin1

Signal

Direction

RJ-45 Pin

1

TX+

—>

1

 

 

 

 

2

TX–

—>

2

 

 

 

 

3

RX+

<—

3

 

 

 

 

6

RX–

<—

6

 

 

 

 

1.Pins 4, 5, 7, and 8 are not used for signaling but for reducing radiated cable emissions.

Ethernet Network Cabling Guidelines

Table B-2describes guidelines for creating Ethernet networks. Numbers might vary, depending on the manufacturer of the network equipment.

Table B-2 Ethernet Cabling Guidelines

Specification

10BASE-T

100BASE-TX

 

 

 

Maximum segment

100 meters

100 meters

length

 

 

 

 

 

 

 

Maximum number of

5

•

With Class I

segments per network

 

 

repeaters: 1

 

 

•

With Class II

 

 

 

repeaters: 2

 

 

 

 

Maximum hop count1

4

•

With Class I

 

 

 

repeaters: none

 

 

•

With Class II

 

 

 

repeaters: 1

 

 

 

Maximum number of

1024

1024

nodes per segment

 

 

 

 

 

 

Cable type required

Category 3, 4, or 5

Category 5

 

 

 

 

1.Hop count = routing metric used to measure the distance between a source and a destination.

 

Cisco 1760 Modular Access Router Hardware Installation Guide

B-2

78-13342-03

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Contents Cisco 1760 Modular Access Router Hardware Installation Guide Page Cisco 1760 Modular Access Router Hardware Installation Guide Page N T E N T S ViiRouter Memory ViiiDetermining the Configuration Register Value Cards E Audience and Scope OrganizationRelated Documentation XiiConventions XiiiVaroitus Tärkeitä Turvallisuusohjeita Waarschuwing Belangrijke VeiligheidsinstructiesBewaar Deze Instructies Säilytä Nämä OhjeetBewahren SIE Diese Hinweise GUT AUF Conservez CES InformationsWarnung Wichtige Sicherheitshinweise Avvertenza Importanti Istruzioni Sulla SicurezzaGuarde Estas Instruções TA Vare PÅ Disse InstruksjoneneAviso Instruções Importantes DE Segurança Guarde Estas InstruccionesVarning! Viktiga Säkerhetsanvisningar Spara Dessa AnvisningarXvii Xviii GEM Disse Anvisninger XixPage Xxi Convention Description CommandsObtaining Documentation XxiiOrdering Documentation Cisco.comDocumentation DVD XxiiiDocumentation Feedback Cisco Product Security OverviewXxiv Psirt Reporting Security Problems in Cisco ProductsObtaining Technical Assistance XxvSubmitting a Service Request Cisco Technical Support WebsiteXxvi Definitions of Service Request Severity XxviiObtaining Additional Publications and Information XxviiiXxix Xxx Cisco 1760 Router Overview Key Features Feature DescriptionPorts and LEDs MOD OK LEDEthernet Connector/Slot Label/Color DescriptionPorts ConsoleSystem LEDs Ethernet LEDsLED Label Color Description WIC/VIC LEDs LEDColor Cards Supported LED Meaning VIC-2FXO VIC-2FXS VIC-2BRI-NT/TE VIC-2DID Slot 1 OK VIC-2FXO VIC-2FXS VIC-2BRI-NT/TE VIC-2DID Slot 2 OK VIC-2FXS VIC-2BRI-NT/TE VIC-2DIDRouter Memory Types of MemorySlot 3 OK Amounts of Memory Router show versionUnpacking the Router Cisco 1760 Router Overview Unpacking the RouterEquipment When You Use It Additional Required EquipmentTypes, refer to the Cisco WAN Interface Cards Hardware NT1Cisco 1760 Modular Access Router Hardware Installation Guide Installation Before Installing the RouterMounting the Router in a Rack Attaching Brackets to the Router Bracket Mounting PointsAttaching Brackets for 19- and 24-Inch Racks Attaching Brackets to the Rack Attaching the Optional Cable GuideConnecting the Router to Your Local Network Installation Connecting the Router to Your Local NetworkConnecting the Router to the Local Network Installing WICs and VICs Safety InformationRemoving a WIC or VIC Slot Cover Inserting a WIC or VIC in the Router Connecting Power to the Router Verifying the Installation Connecting PowerOptional Installation Steps Connecting a PCConnecting a Modem Connecting the Console Cable to the Router10 Connecting a Modem to the Router Installation Optional Installation Steps Troubleshooting Contacting Your Cisco ResellerRecovering a Lost Password Determining the Configuration Register ValueRouter show version Resetting the Router Press Return. The following prompt appears Resetting the Password Resetting the Configuration Register ValueProblem-Solving OK LED DiagnosticsTroubleshooting WICs and VICs Number of Blinks MeaningTroubleshooting BRI Symptom Possible Solutions Voice. The Cisco WAN Interface Cards Hardware InstallationTroubleshooting the Power System Information for Cisco 1700 Routers document that cameTroubleshooting Isdn Isdn S/T Symptom Check the Following Possible SolutionsWIC Isdn UUse the isdn switch-type command Fan BehaviorTroubleshooting Problem-Solving Technical Specifications Description SpecificationOperating Specifications Cabling Specifications Ethernet CablesTX+ RX+ RJ-45 Pin Signal DirectionEthernet Network Cabling Guidelines 10BASE-T 100BASE-TXConsole Cable and Adapter VIC Cables and PinoutsDTE Pin Signal TipPin Signal Description Cables and Pinouts for 2-Port Isdn BRI CardNT Interface TE Interface crossover Isdn BRI NT/TEStraight-through cable Cable Safety Information Safety Information Opening the Chassis Pull the top cover off in this directionInstalling a Dimm Locating ModulesFigure C-4 Installing a Dimm Installing a Simm Installing a Pvdm View from side CardDSPs Supported VIC Combinations NumberPvdm You could shock yourselfElectrical connections are made Closing the Chassis Before You Begin VPN Module PartsSafety Warnings Preventing Electrostatic Discharge Damage Installing the VPN Module in a Cisco 1760 Router Opening the Cisco 1760 ChassisFigure D-1 Removing the Cisco 1760 Chassis Screws Installing the VPN Module Screw Standoff Large connectorFigure D-4 VPN Module Location Figure D-6 Securing the Standoff to the Router Motherboard Closing the Cisco 1760 Chassis 78-13342-03 Multiflex Trunk Interface Cards Echo Canceler Expansion Modules EchoAppendix E Appendix E D E IN-1Dimm DSP C-7IN-2 IOS IN-3Simm IN-4Pvdm IN-5See WICs IN-6
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1760 specifications

The Cisco Systems 1760 series routers are part of Cisco’s popular line of integrated services routers, designed primarily for small to medium-sized businesses and branch offices. The 1760 series was introduced to provide robust connectivity and routing solutions that facilitate secure and reliable networking. Aimed at offering flexibility, these routers integrate multiple functionalities to enhance operational performance.

One of the main features of the Cisco 1760 router is its modularity. It supports various interface and service modules that allow for customization based on specific networking needs. This modular design enables businesses to expand their networking capabilities over time without necessitating a complete hardware overhaul. The router typically comes equipped with two WAN slots and numerous interface options, including Fast Ethernet and serial interfaces.

The 1760 series routers also support advanced security features, providing businesses with a secure environment for their data transmissions. Built-in firewall capabilities, along with support for Virtual Private Network (VPN) protocols, ensure that sensitive information remains protected. Furthermore, the integration of IPsec and MPLS security features assists organizations in maintaining secure and scalable connections across diverse networks.

Another characteristic of the Cisco 1760 is its support for various technologies, including Quality of Service (QoS). QoS functionality allows network administrators to prioritize traffic, ensuring that critical applications receive the bandwidth they require while minimizing latency. This ability is particularly valuable in environments where voice, video, and essential data applications compete for resources.

The router’s ease of management is also noteworthy. With Cisco’s IOS (Internetwork Operating System), the 1760 provides a user-friendly interface allowing for straightforward configuration and monitoring. The simplicity in managing the network devices helps reduce the burden on IT personnel and enhances overall operational efficiency.

Further enhancing the router’s capabilities is its support for voice over IP (VoIP) applications, making it an ideal choice for organizations looking to implement modern telephony solutions. The ability to support multiple voice channels while maintaining adequate data throughput positions the 1760 as an attractive option for businesses transitioning to unified communications.

In summary, the Cisco Systems 1760 series routers exhibit a harmonious blend of modularity, robust security, traffic management, and VoIP support. They effectively meet the demands of modern networking environments, making them a reliable choice for organizations aiming to streamline operations while ensuring secure connectivity. With their adaptable design, these routers can serve as a powerful backbone for enterprise networking needs.
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