Siemens DataNET Hub (DNH) user manual Cable Impedance Settings, + Important

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DataNET Copper Connections, Continued

Cable Impedance Settings

Behind each single port connector is an associated jumper pin block, see Figure 2-1. Each block is used to select the termination impedance of its associated port to match the cable’s own impedance characteristics. The three selections for each port are 100-ohm, 120-ohm and 150-ohm. Use the 150-ohm setting for the recommended cable. If the specific cable impedance is not known use the 100 ohm setting. Select the impedance setting that matches the cable impedance by placing the shorting jumper across the selected pins.

DataNET Hub Signal Equalizer Board

Using Other than Recommended Cable

Recommended Cable

Downlink Port

Connections

+ Important

The Hub Signal Equalizer board balances the attenuation of signals when varying lengths of copper cable connect multiple downlinks from a HUB. The board plugs into a port connector and is wired to its associated downlink port. See DataNET Hub Signal Equalizer Board, page 34 for determining the attenuator board settings.

If you are using a cable other then the recommended cable types, the cable signals for each channel must be measured at the DNH port con- nection. These signal measurements are used to determine the attenu- ator settings for a DataNET Hub Signal Equalizer Board; see page 34.

Refer to Site Wiring Requirements. Table 2-1 (page 19) to determine the requirements for your site.

All downlink connections are made to any of the eight-downlink ports. When a Signal Equalizer board is used the network wiring must connect to TB1 on the signal equalizer board.

Always ensure that the same port number is used for redundant channel connections i.e. Channel A to Port 1 on ‘A’ Hub and Channel B to Port 1 on ‘B’ hub.

2000585-001

Installation • 31

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Contents December User’s Manual 2000585-001 Advance DataNET Hub DNHCopyright Notice Table of Contents Table of Contents Preface Audience & Purpose Chapter ContentsGetting Help Before You Call Technical SupportSafety Practices and Precautions Safety Practices and Precautions Ports OverviewDescription Dual Hub ModulesAdvance Communi- cations System Package ConfigurationsEthernet Bridging DataNET Hub HierarchyDataNET Hub Operation DNH LinksDNH and Maxum Com Boards DataNET Switching TransparencyDefinitions DataNET Hub Specifications DataNET Hub Specifications DataNET Hub Specifications DataNET Cable Cable Type Vendors & P/N Installation NotesCommunication ComparisonsDataNET Hub Specifications DataNET Hub Specifications Zone 1 Wall Mount Dimension Table Description Metric InchesZone 1 Wall Mount Dimension Table Page Introduction Installation OverviewDescription Receipt of DNH Unpacking Reporting Damage Unpacking and InspectionInstructions Package Configurations Wall Mounting Wall or Rack Mounting InstallationRack Mounting CE Installations Wiring Requirements Description Wiring of Power to DataNET HUB Site Wiring RequirementsCable Cable Type Vendors & P/N Installation Notes DataNET ChannelsRecommended DataNET Copper Wire Site Requirements CE Installations NEC Div 2 or Non Hazardous AreasDataNET Fiber Optic Cable Connections Ethernet Communica- tion Links CE Installation Kit Instructions CE InstallationsCE Installations Wiring Connections Before You BeginTypes of Connections Step Action AC Power Mains ConnectionsDNH Power Supply Installation Note Before You BeginInstall 15-Ampere circuit breakers, disconnect switches or AC Power Mains Connections Description Hubs DataNET Copper ConnectionsPort Connections DataNET Ports+ Important Cable Impedance SettingsMaster Port Connectors TB15 TB18 Signal Equalizer Board Downlink Wiring withoutDescription Instructions DataNET Hub Signal Equalizer BoardRepeat the procedure for each connected port on the Hub Calculation One Equalizer Board SettingsSample Calculations RecommendedExample Comparing SignalsOption 1. Connection Point Option 2. Connection Point View MeasurementsInstructions & Examples Step Action + 2.1 dB DataNET Fiber Optic Connections DataNET Fiber Optic CouplerRX & TX Connections Fiber Optic Cable Type Port Connections Page Active Ethernet Port Ethernet ConnectionsPin No MDI Function 10BASE-T Cable RequirementsOverview Command Line Definitions Important Checklist IntroductionTasks Check Chapter Preview Configuring Your PC Learning Hint Setting Network AddressConfiguring Your PC Click Terminal Settings button Configuring Your PC Before You Begin Password Protection Establishing a ConnectionGetting Started How to Change Password FormatHow to Log Out How to Log OnRemote Connection Log On At the prompt type login password IP AddressSetting Network Address Config address ip Available IP Addresses IP Address How to Assign an IP AddressAssigning an IP Address OverviewFirmware Updates At the Local prompt type config address etherenet MAC Address Con- figurationClick on Send Text File For monitoring the DNH operation System Status LEDsBoard Status LEDs Startup LED Status Advance DataNET Hub Communication boards have status LEDsGreen Normal LED Red Fault LEDYellow Warn LED Blink Codes Hub Port LEDsLED Ethernet Port LEDs Cross Link StatusTroubleshooting Configuration ConflictsCabling errors Example Errors Configuration ParameterInstructions Signal Quality ProblemsTroubleshooting Description Unique Commands Command DescriptionsTimeout off Password passwordReset Timeout onConfig display Command Config netmask Command Config address ip command Config device id CommandConfig iproute Del Command Display Command Display links Command Download CommandExample local display links Dn setuptime Events Command Dn CommandCommand Descriptions Dn module on dn module off Help Command List Command Command DescriptionLogin Command Logout Command Netstat Command Port CommandExamplelocal netstat dn clear Test Command Timeout Command Trace Command Validation timeout Command Captured frames Verbose CommandParts Catalog Overview How to Place an OrderPart Description Ordering Number Available PartsAvailable Parts