Typical Distributed-Star Application | Black Box 5000 manual

CHAPTER 3: Network Design and Topologies

DISTRIBUTED STAR

If two Multiserver star networks are connected, the topology can be described as a distributed star. Figure 3-10 shows two star networks connected to form a distributed star.

FEEDER MUX

MULTISERVER

1000

MULTISERVER

5000

FEEDER MUX

MULTISERVER

1000

MULTISERVER

1000

MULTISERVER

1000

FEEDER MUX

FEEDER MUX

Figure 3-10. Typical Distributed-Star Application.

33

Image 35

Black Box 5000 manual Typical Distributed-Star Application

Contents

Multiserver Multiserver Trademarks Table of Contents Table of Contents Getting Started Bench Configuration and Testing Testing Asynchronous Data Channels Link ConfigurationUsing Modems with the Interconnect Link Switching Configuration Data-Channel Configuration Administration Diagnostics Appendix a Worksheets LCD/Keypad Appendix C Defaults Appendix B Cabling Diagrams Appendix F Device Applications Appendix E IndicatorsAppendix D Messages Multiserver 5000 Base Unit SpecificationsPerformance Specifications Physical Specifications Sync Channel Characteristics Multiserver Async Channel Characteristics MX215C Configuration DCE SpeedExpansion Modules MS5 Expansion Module Sync/Async MS1 Expansion Module-Async Only MS1 Voice/Fax Cards General SpecificationsAnalog Specifications Digital Specifications Signaling Specifications MS RLB Module MS1 56K CSU/DSU Module Converter/DCE MS1 NMS ModuleMS1 V.35 Converter/DCE LAN Introduction Module Feeder Muxes LCN300A MS1 56K CSU/DSU Module MT150C CommPakExpansion Modules MS1 Voice/Fax Card Documentation MS1 NMS Module MX227CMS1 V.35 Converter/DCE MX226 11 MS1 Rackmount Kit RM220 Bold Manual Text Conventions Multiserver Initial Considerations Network Design and Topologies Syntax for Node Numbers and IDs Default Node Numbers and Node IDsWorksheets for the Network Nodes and Hubs Local Hub Group Examples of Network Designs Point-to-Point Switching Topology Typical Point-to-Point, Dual Link with Load Balancing Typical String Network Typical Star Application 10. Typical Distributed-Star Application Check Contents Base-Unit Installation Behind it CommPak Cartridge Installation and RemovalPower Up the Unit LCD Display LCD/Keypad Information if you wish to stop Checking the CCM Indicators Channel numbers are assigned to all the ports on CCM Indicator LEDs Module and Channel Nomenclature CCM Board. The front-panel of the unit is to the left Module Stacking Order Module Installation Module-Location Switch Settings Inter-module stacking connectors Inter-Module Stacking Connectors Blank Back Panel Disassembly Procedures Remove the cover after taking out four fastening screws Remove any blank panels CEM, VOICE/FAX CARD, or CSU/DSU Module 11. Installing the CCM Installation Procedures Ports 13. Reinstalling spacers 15. The front and back of the cover Converters Optional Equipment Module Installation Multiserver Base Unit Location Connecting an Ascii TerminalAsync Terminal Settings Getting Started Command Facility Main Menu appears Command Facility Disconnect message is displayed There is no default password. Just press crPress cr. At the Enter Class prompt, enter $CMD Key Reset Defaults Begin by pressing cr Name the Local Node Switch S1 on the NMS Module Installing and Configuring the Link Quick Setup Switching Control Switching Controls Force Connect ALL Overview Bench Configuration and Testing Bench Configuration and Testing Using CSU/DSUs with the Interconnect Link Bench Configuration and Testing Sync Data Channel Bench Configuration for a Sync Data Channel Async terminal Port A6 Asynchronous Terminal Settings Testing Asynchronous Data Channels Local Multiserver THICKNET, 10BASE-T, and Fiber Testing the RLB Module Force Connect Voice/Fax Channels Assign a Port for Each Link Link ConfigurationTypes of Links Avoid Node Duplication Multiserver 5000 CCM Default Port Configurations Port Configuration Interconnect Link Screen will display the following prompt Enter the node ID. Press cr Next, select option 3 from the remote Command Facility menu Mux Link Enter NODE-ID # ### X.21 Link Select option 5 on the Port Configuration Menu X.21 Link Parameters Option Default Description Same number as before See -2, X.21 Link Link Configuration Description Review Link Configuration An example might be NEWYORK/A4 Data-Channel Configuration Following protocol menu will appear Configure the port for syncSynchronous Channels Option Description Sync Protocol Options DLC Sync Channel Characteristics Used for Each Sync Protocol Option Protocol Default Description Sync Channel Characteristics DLC To DTE DLC None Data-Channel Configuration Synchronous Clocking Configuration Description of Use DTE DCE Asynchronous Channels Async Channel Channel Characteristics Asynchronous Channel Characteristics DC1 10. Multiserver Bit Conversion Autobaud Rates Async Channel Channel Features Asynchronous-Channel Switching Parameters, EIA 11. Asynchronous Channel Features 100 12. Asynchronous Channel Extended Features Copy Channel Parameters Review Data-Channel Configuration 104 Connecting Data Channels Cables Data-Channel Configuration Switching Control Switching ConfigurationSwitching Control 107 108 All Prompt From the Command Facility Main Menu, select Disconnecting ranges, see .3, Force Connecting a Range Force-Connecting a Range Ports Synchronous Connections Information Asynchronous ConnectionsClasses, for class 113 Matching Capability for Asynchronous Channels Menu options is discussed in Table Asychronous-Channel Switching Parameters Asynchronous Channels, and -11, Asynchronous Channel Switching Parameters 117 Local and Remote Hub Groups Classes 119 Enter the primary class name selected. Press cr User is connected to the class Class Configuration 122 123 Connect Protocol Details Initiated by device Device initiates Disconnect Sequence Call Completion Receiving port Port Contention/Queueing Configure the port for DTR and assign it to the class 10.11 X.21 Switching Considerations 128 Async Channel Reset Administration Each type of reset is described in Table Menu-flow diagram for LCD/Keypad resets Reset Options Options of this menu are detailed in -2on the following Command ModeCommand Mode menu will appear Selection of loopback tests. See .3, Async Channel Loopback Command Mode Administration Configuring the Command Facility Command Facility Configuration 137 138 139 If the port or range selected is all async, the system MessagesEnter the node ID and channel number or range of channels Special Message Characters Dialog Messages Max Option Default Char Description 143 Three menu options are detailed in -6, which is on the next Network Security Password Menu Status/Statistics Status/Statistics 147 148 149 150 151 152 153 Option Description Link AdministrationChannel Administration Link Configuration , for Classes, for more information Switching AdministrationQueue. See Section 156 There are four test options available DiagnosticsSelf-Test Terminate Test 158 When this option is selected, the following menu appears System Diagnostics in the Command Facility 160 Enter the channel to be tested. Press cr Sync Channel Loopback Following menu will appear After the test is initiated, the Command FacilityTerminal will be returned to the Command Facility This test causes all of the LED indicator lights to Integral CSU/DSU Testing the Network 164 General LCD/Keypad Information LCD/Keypad 166 Menu Tree Multiserver LCD/Keyboard Menu Flow Chart LCD Banner Display Banner Message Display Menu Functions AdministrationReset Review System Message Log This menu offers the following options 170 Press the EXEcute key again and the Multiserver will reset Diagnostics Input Level Monitors the level of the incoming This menu offers the following test options 173 Prom # Configuration Appendix a Worksheets Worksheet for Planning Node Numbers and Node IDs Remote Synchronous Protocol and Channel Worksheet 179 Asynchronous Channel Characteristics Worksheet OFF Asynchronous Channel Features Worksheet 183 Asynchronous Channel Extended Features Worksheet Record of Asynchronous Classes Switching Parameters Worksheet Command Facility Parameters Worksheet Display Messages Worksheet Voice/Fax Parameters Worksheet Record of Passwords Appendix B Cabling Diagrams Cabling for the CCM and 6-Channel CEMs 193 194 195 196 197 Cabling for the 12-Channel CEM 199 200 201 Cabling for the 12-Channel CEM with Line Drivers 203 Cabling for the MS1 56K CSU/DSU Module Cabling for the NMS Module Cabling for Converters 207 208 209 Cabling for Use with Tandem Figure B-13. Tandem Cable Diagram Port Configuration Appendix C DefaultsSystem Administration Multiserver and Feeder Mux Default Node Numbers and IDs Dialog Messages Command Facility Parameters Extended Features Asynchronous Channel ConfigurationChannel Characteristics Channel Features DLC Ascii Bisync and Ebcdic Bisync Sync-Pad Synchronous Channel Configuration Micom Voice Sync Fast Packet OPX Interface Voice/Fax ModuleKTS Interface Interface Voice/Fax Node Parameters Voice/Fax Switching Parameters Log Printer Port Command PortNMS Module Screen Display Messages Appendix D Messages Screen Display Messages Message 224 Screen Display Messages 226 227 228 229 230 231 232 Message Message Type Explanation Node ID n/channel number c Class name or Matrix if matrix switching is usedLCD Messages LCD Messages 236 LCD Messages 238 Definition Off Flashing Appendix E Indicators Table E-2. CCM Indicator LEDs 241 LED 243 244 Tandem Appendix F Device Applications Type of Terminal Table F-1. Spool Mode Figure G-1. Clip nut assembly for rack Appendix G Rackmount Installation 248 Appendix H Additional Infomation Upgrade Information 250 Appendix H Additional Information Glossary Glossary 254 Configuration switch group See switch group 255 EBCDIC, Extended Binary Coded Decimal 256 FDX See full-duplex ISU, integrated service unit An integral interface 258 259 PTT, Post, Telephone, and Telegraph 260 Single frequency See tone-signalling Slow busy signal SF, single frequency See tone signaling 262 263 Multiserver LCD/Keyboard Menu Flow Chart Menu Flow Diagram Park Drive Lawrence, PA 15055-1018 724-746-5500 Fax