Connect Protocol Details | Black Box 5000 instruction

Multiserver 5000

10.9 Connect Protocol Details

Connect protocol is option 1 of the Switching Parameters menu. There are three connect protocol options: Dedicated, Auto, and DTR. A discussion of the protocols and how to configure them is in Section 10.7, Asychronous Channel Switching Parameters, and Table 10-2. This section discusses how the call request, completion, and disconnect sequences operate for the dedicated, auto-answer, and DTR protocols.

Definitions:
Calling port:	Receive Inhibit	=	on
	Call Inhibit	=	off
Receiving port:	Receive Inhibit	=	off
	Call Inhibit	=	on
Dual port:	Receive Inhibit	=	off
	Call Inhibit	=	off

NOTE: The Dual port is both a calling and receiving port.

DEDICATED PROTOCOL

Call Request (Calling and Dual port)

Idle State: Multiserver holds DSR, CTS, and CD high. RI is held low.

•Data activity automatically triggers a call request.

or

•If ABR (auto baud rate) is enabled, type <cr> to trigger a call request (see Section 9.3, Asychronous Channels).

Call Completion (Receiving and Dual ports)

No indication of call completion unless the called port is an ABR port. Then the port is set to the calling port’s speed, and the sign-on character is forwarded.

Disconnect Sequence (Calling, Receiving, and Dual

ports

Calling port:

1.Device initiates

<break><break><break>.

2.Multiserver sends DISCONNECTED message.

Receiving port

1.Device initiates

<break><break><break>.

2.No indication of disconnection.

DTR PROTOCOL

Call Request (Calling and Dual ports)

Idle State: DTR can be high or low. Multiserver holds DSR, CTS, CD, and RI low.

1.Device raises or toggles DTR.

2.Multiserver then raises DSR, CTS, and CD.

3.If ABR is enabled, <cr> should now be typed (see Section 9.3, Asychronous Channels).

Call Completion

For Receiving port

Idle State: DTR must be high, otherwise the port is put out of service (OOS). In either case, the Multiserver holds DSR, CTS, CD, and RI low.

1.Multiserver raises DSR, CTS, and CD.

2.No response is required from the device.

3.If ABR is enabled, then <cr> will be forwarded.

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Black Box 5000 manual Connect Protocol Details

Contents

Multiserver Multiserver Trademarks Table of Contents Table of Contents Bench Configuration and Testing Getting Started Link Configuration Using Modems with the Interconnect LinkTesting Asynchronous Data Channels Data-Channel Configuration Switching Configuration Administration Diagnostics LCD/Keypad Appendix a Worksheets Appendix B Cabling Diagrams Appendix C Defaults Appendix E Indicators Appendix D MessagesAppendix F Device Applications Physical Specifications SpecificationsPerformance Specifications Multiserver 5000 Base Unit Multiserver Async Channel Characteristics Sync Channel Characteristics MS1 Expansion Module-Async Only Configuration DCE SpeedExpansion Modules MS5 Expansion Module Sync/Async MX215C General Specifications Analog SpecificationsMS1 Voice/Fax Cards Signaling Specifications Digital Specifications MS1 56K CSU/DSU Module MS RLB Module MS1 NMS Module MS1 V.35 Converter/DCEConverter/DCE Introduction LAN Feeder Muxes Module LCN300A MS1 Voice/Fax Card CommPakExpansion Modules MS1 56K CSU/DSU Module MT150C 11 MS1 Rackmount Kit RM220 MS1 NMS Module MX227CMS1 V.35 Converter/DCE MX226 Documentation Manual Text Conventions Bold Multiserver Network Design and Topologies Initial Considerations Nodes and Hubs Default Node Numbers and Node IDsWorksheets for the Network Syntax for Node Numbers and IDs Local Hub Group Point-to-Point Switching Topology Examples of Network Designs Typical Point-to-Point, Dual Link with Load Balancing Typical String Network Typical Star Application 10. Typical Distributed-Star Application Base-Unit Installation Check Contents LCD Display CommPak Cartridge Installation and RemovalPower Up the Unit Behind it Checking the CCM Indicators LCD/Keypad Information if you wish to stop CCM Indicator LEDs Channel numbers are assigned to all the ports on Module and Channel Nomenclature CCM Board. The front-panel of the unit is to the left Module Installation Module Stacking Order Module-Location Switch Settings Inter-Module Stacking Connectors Inter-module stacking connectors Disassembly Procedures Blank Back Panel Remove the cover after taking out four fastening screws Remove any blank panels CEM, VOICE/FAX CARD, or CSU/DSU Module Installation Procedures 11. Installing the CCM Ports 13. Reinstalling spacers 15. The front and back of the cover Module Installation Converters Optional Equipment Getting Started Connecting an Ascii TerminalAsync Terminal Settings Multiserver Base Unit Location Command Facility Command Facility Main Menu appears There is no default password. Just press cr Press cr. At the Enter Class prompt, enter $CMDDisconnect message is displayed Reset Defaults Key Name the Local Node Begin by pressing cr Switch S1 on the NMS Module Quick Setup Installing and Configuring the Link Switching Control Switching Controls Force Connect ALL Bench Configuration and Testing Overview Bench Configuration and Testing Using CSU/DSUs with the Interconnect Link Bench Configuration and Testing Bench Configuration for a Sync Data Channel Sync Data Channel Async terminal Port A6 Testing Asynchronous Data Channels Asynchronous Terminal Settings Local Multiserver Testing the RLB Module THICKNET, 10BASE-T, and Fiber Voice/Fax Channels Force Connect Avoid Node Duplication Link ConfigurationTypes of Links Assign a Port for Each Link Port Configuration Multiserver 5000 CCM Default Port Configurations Interconnect Link Screen will display the following prompt Next, select option 3 from the remote Command Facility menu Enter the node ID. Press cr Mux Link Enter NODE-ID # ### Select option 5 on the Port Configuration Menu X.21 Link Option Default Description X.21 Link Parameters Same number as before Link Configuration Description See -2, X.21 Link Review Link Configuration Data-Channel Configuration An example might be NEWYORK/A4 Configure the port for sync Synchronous ChannelsFollowing protocol menu will appear Sync Protocol Options Option Description Sync Channel Characteristics Used for Each Sync Protocol DLC Sync Channel Characteristics Option Protocol Default Description DLC To DTE DLC None Data-Channel Configuration Configuration Description of Use Synchronous Clocking DTE DCE Asynchronous Channels Async Channel Channel Characteristics Asynchronous Channel Characteristics DC1 Autobaud Rates 10. Multiserver Bit Conversion Async Channel Channel Features 11. Asynchronous Channel Features Asynchronous-Channel Switching Parameters, EIA 100 12. Asynchronous Channel Extended Features Copy Channel Parameters Review Data-Channel Configuration 104 Data-Channel Configuration Connecting Data Channels Cables Switching Configuration Switching ControlSwitching Control 107 108 Prompt From the Command Facility Main Menu, select All Force-Connecting a Range Disconnecting ranges, see .3, Force Connecting a Range Synchronous Connections Ports Asynchronous Connections Classes, for classInformation 113 Matching Capability for Asynchronous Channels Asychronous-Channel Switching Parameters Menu options is discussed in Table Switching Parameters Asynchronous Channels, and -11, Asynchronous Channel 117 Classes Local and Remote Hub Groups 119 User is connected to the class Enter the primary class name selected. Press cr Class Configuration 122 123 Connect Protocol Details Disconnect Sequence Initiated by device Device initiates Port Contention/Queueing Call Completion Receiving port 10.11 X.21 Switching Considerations Configure the port for DTR and assign it to the class 128 Async Channel Administration Reset Menu-flow diagram for LCD/Keypad resets Each type of reset is described in Table Reset Options Command Mode Command Mode menu will appearOptions of this menu are detailed in -2on the following Command Mode Selection of loopback tests. See .3, Async Channel Loopback Configuring the Command Facility Administration Command Facility Configuration 137 138 139 Messages Enter the node ID and channel number or range of channelsIf the port or range selected is all async, the system Special Message Characters Max Option Default Char Description Dialog Messages 143 Network Security Three menu options are detailed in -6, which is on the next Password Menu Status/Statistics Status/Statistics 147 148 149 150 151 152 153 Link Configuration , for Link AdministrationChannel Administration Option Description Switching Administration Queue. See SectionClasses, for more information 156 Terminate Test DiagnosticsSelf-Test There are four test options available 158 System Diagnostics in the Command Facility When this option is selected, the following menu appears 160 Sync Channel Loopback Enter the channel to be tested. Press cr This test causes all of the LED indicator lights to After the test is initiated, the Command FacilityTerminal will be returned to the Command Facility Following menu will appear Testing the Network Integral CSU/DSU 164 LCD/Keypad General LCD/Keypad Information 166 Multiserver LCD/Keyboard Menu Flow Chart Menu Tree Banner Message Display LCD Banner Display Review System Message Log AdministrationReset Menu Functions 170 This menu offers the following options Diagnostics Press the EXEcute key again and the Multiserver will reset This menu offers the following test options Input Level Monitors the level of the incoming 173 Configuration Prom # 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 Figure B-13. Tandem Cable Diagram Cabling for Use with Tandem Multiserver and Feeder Mux Default Node Numbers and IDs Appendix C DefaultsSystem Administration Port Configuration Command Facility Parameters Dialog Messages Channel Features Asynchronous Channel ConfigurationChannel Characteristics Extended Features Ascii Bisync and Ebcdic Bisync DLC Synchronous Channel Configuration Sync-Pad Sync Micom Voice Fast Packet Interface Voice/Fax ModuleKTS Interface OPX Interface Voice/Fax Switching Parameters Voice/Fax Node Parameters Command Port NMS ModuleLog Printer Port Appendix D Messages Screen Display Messages Screen Display Messages Message 224 Screen Display Messages 226 227 228 229 230 231 232 Message Message Type Explanation Class name or Matrix if matrix switching is used LCD MessagesNode ID n/channel number c LCD Messages 236 LCD Messages 238 Appendix E Indicators Definition Off Flashing Table E-2. CCM Indicator LEDs 241 LED 243 244 Appendix F Device Applications Tandem Table F-1. Spool Mode Type of Terminal Appendix G Rackmount Installation Figure G-1. Clip nut assembly for rack 248 Upgrade Information Appendix H Additional Infomation 250 Appendix H Additional Information Glossary Glossary Configuration switch group See switch group 254 255 256 EBCDIC, Extended Binary Coded Decimal ISU, integrated service unit An integral interface FDX See full-duplex 258 259 260 PTT, Post, Telephone, and Telegraph SF, single frequency See tone signaling Single frequency See tone-signalling Slow busy signal 262 263 Multiserver LCD/Keyboard Menu Flow Chart Menu Flow Diagram Park Drive Lawrence, PA 15055-1018 724-746-5500 Fax