T3 Access Multiplexer DL3100 User’s Guide Part 098-20590-02 Rev.
Copyright Copyright © 1998, Digital Link Corporation World copyright reserved. No part of this publication may be stored in a retrieval system, transmitted, or reproduced in any way, including but not limited to photocopy, photograph, magnetic, chemical, or other record, without the prior agreement and written permission of Digital Link Corporation.
Digital Link shall not be liable for failure to perform its obligations if such results directly or indirectly from, or is contributed to by, any act of God or of buyer; riot; Þre; explosion; accident; ßood; sabotage; epidemics; delays in transportation; lack of or inability to obtain raw materials, components, labor, fuel or supplies; governmental laws, regulations or orders; or labor trouble, strike, or lockout (whether or not such labor event is within the reasonable control of Digital Link); other circu
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Incidence of harm: If your telephone equipment causes harm to the telephone network, the telephone company may discontinue your service temporarily. If possible, they will notify you in advance. But if advance notice is not practical, you will be notiÞed as soon as possible. You will be informed of your right to Þle a complaint with the FCC.
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Table of Contents Preface xix Audience xix Organization xix Conventions xx Symbols xx Typography xxi Digital Link Technical Support xxii Returning a Unit xxii Send Us Your Comments xxiii Chapter 1, DL3100 Quick ConÞguration 1-1 Required Pre-Configuration Information 1-1 Getting Started 1-2 Setting a Parameter in a Menu Unit Configuration Configuration Actions T3MB Configuration Configuration Actions DTE Port Configuration Configuration Actions 1-2 1-3 1-4 1-4 1-5 1-6 1-7 Chapter 2,
Chapter 3, Mechanically Installing the DL3100 3-1 Preparing for the Installation 3-1 Required Location and Equipment 3-2 About Your Power Supply 3-3 About Grounding 3-3 About Mounting the Unit in a Rack Front-mounting the Unit in a 19-inch Rack 3-4 Front-mounting in a 23-inch Rack 3-5 Mid-mounting the DL3100 3-5 Installing the DL3100 with AC Power 3-6 Installing the DL3100 with DC Power 3-6 Connecting the DL3100 to a T3 Network 3-8 Connecting the DL3100 to a DTE 3-8 Connecting the DL
Unit Configuration Menu Parameters 4-11 Login Configuration 4-14 Login Configuration Parameters 4-15 Configuring the T3MB 4-16 T3MB Configuration Menu Parameters Configuring the T3MB TDL T3MB TDL Configuration Menu Parameters Configuring the HSDB and the HVDB 4-16 4-19 4-20 4-21 HSDB and HVDB Main Menu Parameters 4-22 Configuring the HSDB 4-22 HSDB Configuration and Connections Menu Parameters Configuring the HVDB HVDB Configuration and Connections Menu Parameters Configuring for SNMP Manageme
Displaying the Event History Event History Menu Parameters 5-23 Monitoring T3MB Bandwidth and Connections 5-24 Using the System Utilities 5-24 Downloading Software 5-25 Deleting the Entire Node Configuration 5-26 Backing Up the Database 5-27 Chapter 6, Diagnosing and Troubleshooting the DL3100 6-1 Running Diagnostic Tests 6-2 Running Tests Using the Terminal Interface 6-2 Testing the T3MB DTE/Network Interface 6-2 Network Loopback 6-3 DTE Loopback 6-4 Send FEAC Code 6-4 Testing the
What You See 7-3 Editing a Parameter 7-4 Preparing for the Initial Configuration 7-5 Required Information 7-5 Keeping a Record 7-6 Selecting the Remote or Local Unit 7-6 Configuring the DL3100 7-6 The Node Config Submenu 7-7 Node Config Menu Parameters 7-8 The Comm Port Parameters 7-8 The T3 Net Config Menu 7-9 Configuring the Data Ports 7-10 Configuring the HSDB 7-10 HSDB Config Menu Parameters 7-10 Configuring the HVDB 7-11 HVDB Config Menu Parameters 7-12 Displaying Status
External Clock Specifications A-1 Data Interface A-2 Interface Connectors A-2 Communication Port (ASCII) A-3 Communication Port (SNMP) A-3 Diagnostics A-4 Power A-4 Mechanical A-4 Environmental A-5 Regulatory A-5 Downloadable Software A-5 Alarms A-6 Alarm Types A-6 Equipment Grounding Conductor A-6 Fan Filter A-7 Front Panel LEDs and Connectors A-7 DL3100 Cable Model Numbers A-9 Factory Default Configuration Configuration Worksheet A-11 Appendix B, DL 3100 Connector and P
List of Figures Figure 1-1 Node/T3 Main Menu 1-3 Figure 1-2 Unit ConÞguration 1-4 Figure 1-3 T3MB ConÞguration 1-5 Figure 1-4 HSDB Main Menu 1-6 Figure 1-5 HSDB ConÞguration and Connections 1-7 Figure 2-1 DL3100 T3 Access Multiplexer 2-1 Figure 3-1 DL3100 Front Mounted in a 19-inch Rack 3-4 Figure 3-2 DL3100 Mid-mounted in a 19-inch Rack 3-5 Figure 3-3 Terminal Block on Rear Panel 3-7 Figure 3-4 DL3100 Rear Panel 3-8 Figure 4-1 Ports on the Rear Panel 4-2 Figure 4-2 Daisy-chained DL310
xiv Figure 4-7 T3MB ConÞguration Menu 4-16 Figure 4-8 T3MB TDL ConÞguration MenuÑC-bit Parity 4-19 Figure 4-9 T3MB TDL ConÞguration MenuÑM13 4-20 Figure 4-10 HSDB/HVDB Main Menu 4-22 Figure 4-11 HSDB ConÞguration and Connections Menu 4-23 Figure 4-12 HVDB ConÞguration and Connections Menu 4-25 Figure 4-13 SNMP ConÞguration Menu 4-27 Figure 5-1 Node/T3MB Main Menu 5-1 Figure 5-2 Remote Access of Node/T3MB Main Menu 5-4 Figure 5-3 Remote Node Map 5-5 Figure 5-4 Current T3MB Alarm and Stat
Figure 5-12 T3MB Bandwidth & Connections Menu 5-24 Figure 5-13 Software Download Menu 5-25 Figure 5-14 Delete Entire Node ConÞguration Menu 5-27 Figure 6-1 T3MB Tests Menu 6-3 Figure 6-2 HVDB Tests Menu 6-5 Figure 7-1 Front Panel Interface 7-2 Figure 7-2 Top Level Menus 7-3 Figure 7-3 ConÞguration Menu 7-4 Figure 7-4 Edit Mode 7-5 Figure 7-5 Selecting the Remote Unit 7-6 Figure 7-6 ConÞguration Submenus 7-7 Figure 7-7 Node ConÞg Menu 7-7 Figure 7-8 T3 Net ConÞg Menu 7-9 Figure 7-9
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List of Tables Table 3-1 Installation Steps 3-1 Table 3-2 Required Equipment 3-2 Table 4-1 Part Numbers for DL3100 Units 4-4 Table 5-1 T3MB Alarms and Status Conditions 5-6 Table 5-2 Statistics Menu Comparisons 5-18 Table 5-3 RFC 1407 Statistics Detail 5-19 Table 6-1 Self-Test Error Indicator 6-1 Table 6-2 Troubleshooting Guide 6-8 Table A-1 T3 Network Port Interface A-1 Table A-2 External Clock Specifications A-1 Table A-3 Data Interfaces A-2 Table A-4 Interface Connectors A-2 Table
xviii Table A-9 Environmental Information A-5 Table A-10 Regulatory Compliances A-5 Table A-11 Alarm Types A-6 Table A-12 Front Panel LEDs, Buttons and Connectors A-7 Table A-13 Cables A-9 Table B-1 DB-25 to V.
Preface The DL3100 UserÕs Guide provides the information you need to install, test, operate, and manage the DL3100. Audience This guide is prepared for network managers and technicians who are responsible for the installation of LAN-to-WAN equipment, and who are thoroughly familiar with the network topology in which the DL3100 is expected to operate. Organization Chapter 1, ÒDL3100 Quick ConÞguration,Ó provides quick conÞguration information for more experienced users.
Conventions This section describes the conventions used to delineate speciÞc types of information throughout Digital Link user guides. Symbols Symbols denote text that requires special attention. The information contained alongside a symbol corresponds to one of four levels of severity: NOTE: Follow guidelines in this, or the previous, paragraph to use the Digital Link product more effectively. CAUTION: Follow guidelines in this, or the previous, paragraph to avoid equipment damage or faulty application.
Typography Digital Link manuals delineate the names of Þles, commands, and actions by using the fonts and typefaces described in the following table: Typeface or Symbol Courier Font AaBbCc123 Courier Font, Bold AaBbCc123 Palatino Font, Italic AaBbCc123 Purpose Example The names of commands, files, and directories, as well as on-screen computer output. Edit your.login Þle. The input you provide, as contrasted with on-screen computer output.
Digital Link Technical Support If you should experience difÞculty with the setup and/or operation of your Digital Link equipment, the Digital Link Technical Support staff can assist you at any time. Telephone (408) 745-4200 FAX (408) 745-4240 Email support@dl.com Internet www.dl.com Before you place a call for help, use the form provided at the end of this Preface to assemble the information that your technical support representative is likely to request.
Send Us Your Comments Please let us know if this user guide meets your requirements. Does the manual answer your questions? Is the manual thorough? Is the manual easy to use: can you Þnd the information you need? Is anything missing from the manual? What would you like to see in the manual? Digital Link Technical Publications FAX (408) 745-6250 Email techpubs@dl.com All suggestions and comments are appreciated.
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DL3100 Quick ConÞguration 1 1 This chapter is intended for more experienced users who wish to have a quick reference for the DL3100 conÞguration. It is assumed that you are familiar with the DL3100. ConÞguring the DL3100 is simple and easy. It should take less than Þve minutes with a little information and this quick conÞguration chapter. This chapter is meant to conÞgure only critical items. If any options are not mentioned, leave them at the factory default.
1 Getting Started The DL3100 can be conÞgured through the front panel or through a VT-100 terminal connection. This chapter will discuss conÞguration through a terminal. Please refer to Chapter 7, ÒUsing the Front Panel InterfaceÓ for conÞguration from the front panel. Start by logging on to the unit. To do this connect a VT-100 compatible terminal connection to the DL3100 terminal port. Make sure the terminal port settings match that of the DL3100. The default settings on the DL3100 are 9600, N, 8, and 2.
1 Figure 1-1 Node/T3 Main Menu Unit Configuration From the Node/T3MB Main Menu select Node ConÞguration. In the Node ConÞguration Menu, select Unit ConÞguration.
1 Figure 1-2 Unit Configuration Configuration Actions 1. Set the date (format: MM/DD/YY). 2. Set the time (format: HH:MM:SS). The unit uses a 24-hour clock. 3. Set the Node Number. It should be set at something other than zero and different from the remote DL3100. 4. After entering the date, time, and node number, select ConÞrm and press Return to set the parameters. 5. Select Exit to return to the Node/T3MB Main Menu. T3MB Configuration From the Node/T3MB Main Menu select T3MB ConÞguration.
1 Figure 1-3 T3MB Configuration Configuration Actions 1. Set the Device Name, up to 20 characters. 2. Set the Scrambler option. When Enabled, this option allows for the DL3100 to ÒscrambleÓ user data to prevent errors on pattern sensitive Þber equipment along the DS3 transmission path. Both the local and remote DL3100s must be set the same. If you are unsure, set both units for Scrambler Enabled. 3. Set the T3 (DS3) Framing Format which the carrier recommends: C-bit or M13.
1 6. Set the T3 (DS3) Transmit Clock: Network or Internal. If the carrier is providing timing on the T3 (DS3) select Network timing. If there is no timing on the circuit, set one DL3100 to Internal and the remote to Network timing. If you are unsure, assume there is no circuit timing and select Net timing. 7. Select ConÞrm to set the parameter you changed. 8. Select Exit to return to the Node/T3MB Main Menu. DTE Port Configuration From the Node/T3MB Main Menu select Select Device.
1 Figure 1-5 HSDB Configuration and Connections Configuration Actions ▼ Set the number of T3 Timeslots to be allocated to the DTE device. Setting the number of T3 Timeslots will set the port rate of the HSSI (HSDB) or V.35 (HVDB) port. The DL3100 splits the T3 (DS3) into 147 timeslots at 300 kbps each. Therefore, assigning 10 timeslots will yield a HSSI or V.35 port rate of 3 Mbps. Setting all 147 timeslots will yield 44.2 Mbps or full T3 (DS3) rate.
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About the DL3100 2 2 The DL3100 T3 Access Multiplexer (Figure 2-1) provides an economical means of extending high capacity data systems onto wide area public or private T3 networks. Supporting a number of interface types including High Speed Serial Interface (HSSI) and V.35, the DL3100 connects to bridges, routers, front-end processors and channel extenders. It can function as a T3 Data Service Unit (DSU) or T3 Feeder Multiplexer.
2 From one to three DTE boardsÑTwo types of DTE boards are supported: a high-speed DTE Board (HSDB) and a V.35 DTE Board (HVDB). Each of these interface modules has one DTE port. A front panelÑThe front panel consists of a 16-character vacuum ßuorescent display, a 4-key keypad, and various LEDs. This panel can be used to provision the unit, run diagnostic tests, or gain access to performance statistics. A built-in power supplyÑThe power supply has a range of 120 VAC to 240 VAC or -48 VDC.
2 How the DL3100 Works The DL3100 allows you to conÞgure the data rate of each payload signal. For example, you can select a data rate of 21 Mbps for a particular DTE data interface module. The data rate and routing information is sent to the T3 main board where a database of all associated connections is maintained. The T3 main board uses this information to direct the appropriate segment of T3 bandwidth to the appropriate data interface module.
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3 Mechanically Installing the DL3100 3 The following table prioritizes the tasks you will need to perform to successfully install the DL3100.
3 ¥ Make sure that you have received all the items ordered. Your shipment should consist of the following: DL3100 T3 Access Multiplexer Cables ordered for your network environment One power cord This manual ¥ Fill out and mail the registration card. WARNING: Voltages as high as 200 VDC may exist at the telephone company’s T3 interface in the form of simplex power.
3 Table 3-2 Required Equipment (Continued) Equipment Function 25-twisted-pair cable with 50-pin male connectors To connect the unit to a HSSI-compatible DTE device V.35-compatible, shielded cable with DB25 male connector on the DL3100 end To connect the unit to a V.
3 About Mounting the Unit in a Rack The DL3100 can be front or mid-mounted in a 19-inch or 23-inch rack. Allow about two inches of space between units on the rack. Front-mounting the Unit in a 19-inch Rack To front-mount the DL3100 in a 19-inch rack: Mount the unit in a 19-inch rack using four rack mounting screws, two on each side as shown in Figure 3-1.
3 Front-mounting in a 23-inch Rack To front-mount the unit in a 23-inch rack: ▼ Remove the ears from the unit and reattach them so that the wider sections of the ears face front. Attach the unit to the rack. Mid-mounting the DL3100 To mid-mount the unit in a 19-inch rack: ▼ Remove the ears and attach them to the unitÕs middle holes. Attach the unit to the rack.
3 Installing the DL3100 with AC Power To mechanically install the DL3100 when using AC power, perform the following steps: 1. Mount the DL3100 on a ßat surface or in a rack. 2. Ground the DL3100 by connecting a grounding cable to the screw terminal labeled FGND on the rear panelÕs terminal block. 3. Connect the AC power cord to the AC power socket on the rear panel of the DL3100, and plug the other end into the nearest AC outlet.
3 ALM IN ALMOUT -48VDC Ground FGND - + NO NC - + COM Figure 3-3 Terminal Block on Rear Panel 3. Connect the -48 VDC wire to the - terminal (on the rear panelÕs terminal block, Figure 3-3) using a small ßat screw driver to fasten the wire. 4. Connect the ground (+) wire to the + terminal in the same way. NOTE: The unit is designed to operate with negative voltage; therefore, you must connect the positive terminal to ground. 5.
3 Connecting the DL3100 to a T3 Network You will need a WECO 728A cable or its equivalent to connect the DL3100 to the T3 network. The DL3100 has two BNC T3 network connectors located on its rear panel (labeled RCV and XMT) (Figure 3-4). To connect the DL3100 to a T3 network: ▼ Connect one end of the network cable to the DL3100Õs BNC connectors, and the other end to the standard patch panel BNC connection.
3 ¥ Use a shielded cable with DB-25 plug connectors on one end and V.35 (M34) on the other end. Connect one end of the DTE cable to the DL3100 DB-25 socket, and connect the other end to the DTE equipment. Connecting the DL3100 to an External Clock Source To provide clocking to the DL3100 from an external source, connect the appropriate cable to the BNC socket provided on the rear panel of the DL3100. NOTE: You will need to use a WECO 728-compatible RG59 cable.
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4 ConÞguring the DL3100 4 To conÞgure a DL3100, you can use the terminal interface by connecting an ASCII terminal to the DL3100Õs comm port. This chapter describes how to connect the terminal and how to conÞgure the DL3100 T3 Access Multiplexer from a terminal. Required Information Before you conÞgure the unit, we suggest you collect the following: ¥ The DSU/CSU IP address and IP subnet mask.
4 Connecting a Terminal to a Comm (Terminal) Port The DL3100 has two 9-pin comm port sockets on its rear panel, labeled TERMINAL and NETWORK MANAGEMENT. These are provided for connection to the ASCII terminal or SNMP workstation. NOTE: To enable daisy-chaining—Pin 8 (CTS) on the comm port side of the connector is connected to Pin 8 on the other connector. If your cable is not from Digital Link, be sure that pin 8 is disconnected at the terminal end of the connector.
4 Connecting the Terminal Port through a Modem To connect the terminal port of the DL3100 through a modem, you need a DB-25 to DE-9 null modem cable. NOTE: Digital Link can provide 9-pin to 25-pin adapters, as well as null-modem adapters if they are required. If the comm port baud rate is 9600, the distance between the TERMINAL port and the modem cannot exceed 50 feet. You can increase the distance if you reduce the baud rate. To connect a modem to the TERMINAL port: 1.
4 1. Using a cable with DE-9 connectors, connect the cableÕs DE-9 socket connector to the terminal (or modem if at a remote site). Ribbon-type cables can be ordered from Digital Link by the following part numbers: Table 4-1 Part Numbers for DL3100 Units To daisy chain: Order Part No. Four units 154-00051-01 Eight units 154-00052-01 Twelve units 154-00053-01 2. Connect the cableÕs DE-9 plug connector to the TERMINAL port socket on each DL3100 (Figure 4-1).
4 CAUTION: TO PROTECT AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE AND RATING OF FUSE RX EXT CLK TERMINAL COMM S FU ALM IN E POWER 120V/1A 220V/.5A 50/60Hz DTE 3 NETWORK MANAGEMENT S FU TX E DTE 2 DTE 1 DL3100 ALM OUT -48DC - + NO NC - + COM CAUTION: TO PROTECT AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE AND RATING OF FUSE RX EXT CLK TERMINAL COMM S FU ALM IN E POWER 120V/1A 220V/.
4 5. Type the node number and press Return. You will see the prompt: User name: 6. Enter a valid user name. If a user name has not been conÞgured, press Enter to bypass this Þeld. The following prompt appears: Password: 7. Enter a valid password. If a password has not been conÞgured, press Enter to bypass this Þeld. The Node/T3MB Main Menu appears. (Figure 4-3.) If it does not appear, you may have an incorrect node number, a bad connection on the comm port or a bad comm port conÞguration. 8.
4 1. Move the highlight bar to the Select Device Þeld and press Return. The highlight bar will then move to the Selected Device Address Þeld in the status bar. 2. Enter the device address and press Return. A device address is a seven-digit identiÞer that designates the physical location of a device within the unit. It contains three Þelds delimited by periods. The example below deÞnes each Þeld and shows the address of the board in slot 1 of node number 2. Node Number } } } 02. 01.
4 Figure 4-3 Node/T3MB Main Menu Node/T3MB Main Menu Selections The Node/T3MB Main Menu offers the following selections: ¥ Select Device (Default Ñ Local node address) Allows you to move to the main menu of the remote node or any DTE board. Enter the address of the device you wish to access. ¥ Backup Database Lets you manually backup the database to EEPROM. ¥ Option Slots Lets you see which DTE boards occupy which DTE slots on the T3 Main Board.
4 ¥ Event History Displays the DL3100Õs event history and lets you reset alarms. ¥ Remote Node Map Displays the numbers of the remote nodes and the status of the link (up or down). ¥ Node ConÞguration Lets you conÞgure certain parameters of the DL3100. ¥ SNMP ConÞguration Lets you conÞgure the DL3100 to communicate with an SNMP Management System. ¥ Delete Entire Node ConÞguration Lets you delete the nodeÕs conÞguration and return to the factory default settings.
4 Configuring the DL3100 To conÞgure a local or remote DL3100, you need to conÞgure the: ¥ Basic node parameters in the Node ConÞguration Menu. ¥ The T3MB in the T3MB ConÞguration Menu. ¥ The T3MB Terminal Data Link (TDL) in the T3MB TDL ConÞguration Menu. ¥ The HSDB or HVDB in the HSDB/HVDB ConÞguration and Connections Menu. ¥ SNMP parameters in the SNMP ConÞguration Menu (for SNMP management capability).
4 Figure 4-5 Unit Configuration Menu NOTE: To save your changes, you must select Confirm (or select Exit to take no action). Unit Configuration Menu Parameters The Unit ConÞguration Menu parameters are: ¥ DATE Enter a valid date using the format mm/dd/yy.
4 ¥ TIME Enter a valid time with the format hh:mm:ss. hh 0-23 hours mm 0-59 minutes ss 0-59 seconds Example: 8:4:39 yields 08:04:39 ¥ AutogrowÑOn or Off (DefaultÑOn) This feature is for factory use only and should remain On. ¥ Automatic BackupÑ15 seconds, 30 seconds, one minute, or Þve minutes after a database change; after every database change; Off. (You must select ConÞrm to save your change).
4 ¥ Node NumberÑ1 to 9,999 (DefaultÑ0) Enter a number between 1 and 9,999 to assign a unique number to each DL3100. NOTE: Each unit must be set to a different number, to allow remote communication and daisy chaining of multiple units. If the remote unit is set to the same number as the local unit you will not be able to access the remote unit. Do not assign a blank number! This causes the unit to be always logged on and it cannot be logged out until it is assigned a number.
4 ¥ Terminal XON/XOFFÑEnabled or Disabled (DefaultÑEnabled) EnabledÑEnables a software ßow control feature which causes the DTE device to stop sending data when the terminalÕs buffers are full. You can resume the ßow of data, by pressing any key and stop it by pressing Ctrl-S. DisabledÑSet to Disabled when your terminal or network management station does not support XON/XOFF.
4 You can add seven additional users. Each user can have a password. The default for the User IdentiÞcation Þeld and Password Þeld is empty. Just press Return at the prompts. The Þelds are case sensitive. Login Configuration Parameters Before you set any parameter in the Login ConÞguration Menu, heed these warnings! WARNING: Be sure to give at least one user Full Access rights. If no user has full access rights or if you donÕt know the password to log on, no one can access the DL3100.
4 Access denied - your account does not have this PRIVILEGE. ¥ Automatic Logout:Ñ OFF, 3 - 5 - 10 - 30 minutes after no keyboard activity (Default Ñ OFF) Select the amount of time that must pass before the system automatically logs you out. Configuring the T3MB You use the T3MB ConÞguration Menu to conÞgure the T3 Main Board. To open the T3MB ConÞguration Menu, select T3MB ConÞguration from the Node/T3MB Main Menu and press Return. Figure 4-7 shows an example of the T3MB ConÞguration Menu.
4 ¥ ServiceÑIn Service or Out of Service (DefaultÑIn Service). Allows you to place the DL3100 in or out of service. ¥ ScramblerÑEnabled or Disabled (DefaultÑDisabled). When enabled, this feature scrambles the data signal before sending it to the network. The scrambler algorithm is based on the polynomial x43+ 1. NOTE: To use the scrambler, your main board must be Rev E or later. ¥ Hardware Rev This is a view-only Þeld. The hardware rev is set at the factory and cannot be changed.
4 ¥ Transmit ClockÑInternal, Network and External (DefaultÑInternal). Designates the T3 Transmit Main Clock source. InternalÑCauses the internal timing source of the DL3100 to generate the DS3 transmit timing. The receive timing is always recovered from the incoming DS3 signal. NetworkÑAllows the recovered receive timing to clock the transmit signal (loop). ExternalÑAllows a customer-supplied External 1.544 MHz clock source to provide the DS3 clock.
4 Configuring the T3MB TDL You use the T3MB TDL ConÞguration Menu to provide a Terminal To Terminal Path Maintenance Data Link. To open the T3MB TDL ConÞguration Menu, select T3MB TDL ConÞguration from the Node/T3MB Main Menu and press Return. NOTE: When operating in C-bit framing format the menu will also display TDL messages, which are not displayed when operating in M13 framing format. Figure 4-8 and Figure 4-9 show examples of each menu.
4 Figure 4-9 T3MB TDL Configuration Menu—M13 T3MB TDL Configuration Menu Parameters The T3MB TDL ConÞguration Menu allows you to set the following parameters: ¥ Equipment IdentiÞcation Code Enter an alphanumeric name of up to 10 characters (numbers, letters, and spaces are acceptable), describing the node. ¥ Location IdentiÞcation Code Enter an alphanumeric name of up to 11 characters, describing the location of the node.
4 ¥ Contents of the TDL Message Received (C-bit Parity Format) The following parameters are view-only parameters and cannot be changed. ¥ Data Path (Idle or Test) Signal Received from DTE (Carrier) The TDL message received is either DATA PATH, IDLE or TEST, and was received from the DTE or the CARRIER. ¥ Equipment IdentiÞcation Code IdentiÞes the type of equipment sending the message. ¥ Location IdentiÞcation Code IdentiÞes the location of the unit sending the message.
4 Figure 4-10 HSDB/HVDB Main Menu HSDB and HVDB Main Menu Parameters The HSDB and HVDB Main Menus allow you to set the following parameters: ¥ Select Device Lets you access any other main menu of any other board. ¥ ConÞguration & Connections Lets you conÞgure the HSDB and HVDB. Because the parameters for the two types of DTE boards are different, a different ConÞguration & Connections Menu appears for each type of board. ¥ Alarms and Status Provides current alarm and status reports for the HSDB or HVDB.
4 To access the HSDB ConÞguration and Connections Menu, select the HSDB device from any main menu. Next select ConÞguration & Connections from the HSDB Main Menu and press Return. Figure 4-11 shows an example of the HSDB ConÞguration and Connections Menu. Figure 4-11 HSDB Configuration and Connections Menu HSDB Configuration and Connections Menu Parameters The HSDB ConÞguration and Connections Menu parameters are as follows: ¥ Module ServiceÑIn Service or Out of Service (DefaultÑIn Service).
4 ¥ Data Rate This is a view-only Þeld. The Data Rate changes automatically to correspond to the number of T3 slots selected (one timeslot is equal to approximately 300 kbps). ¥ T3 Timeslots Lets you allocate a certain number of T3 Timeslots on the main board to this particular HSDB. Enter the number of timeslots corresponding to the desired data rate (approximately 300 kbps per timeslot). There are a total of 147 timeslots available for DTE allocation.
4 Configuring the HVDB You use the HVDB ConÞguration and Connections Menu to conÞgure the HVDB. To access the HVDB ConÞguration and Connections Menu, select the HVDB device from any main menu. Next select ConÞguration & Connections from the HVDB Main Menu and press Return. Figure 4-12 shows an example of the HVDB ConÞguration and Connections Menu.
4 ¥ Data Rate This is a view-only Þeld. The Data Rate changes automatically to correspond to the number of T3 slots selected (one timeslot is equal to approximately 300 kbps). ¥ T3 Timeslots Lets you allocate a certain number of T3 Timeslots on the main board to this particular HVDB. Enter the number of timeslots corresponding to the desired data rate (approximately 300 kbps per timeslot). There are a total of 147 timeslots available for DTE allocation.
4 To access the SNMP ConÞguration Menu, select SNMP ConÞguration from the Node/T3MB Main Menu. Figure 4-13 shows an example of the SNMP ConÞguration Menu. Figure 4-13 SNMP Configuration Menu SNMP Configuration Menu Parameters The SNMP ConÞguration Menu parameters are: ¥ Node IP Address Enter the IP address of the node in the SNMP network. The SNMP management program uses this address to access information from the unit. ¥ Node IP Subnet Mask Enter the subnet mask of the node in the SNMP network.
4 ¥ Write Community String (text string) (Default Ñ public) Enter an alphanumeric text string (maxÑ31 characters) that identiÞes a portion of the SNMP network that can write messages to the node. ¥ Trap Community String (text string) (Default Ñ public) Enter an alphanumeric text string (maxÑ31 characters) that identiÞes a portion of the SNMP network that can receive TRAP messages from the node. ¥ SNMP Baud RateÑ300, 600, 1200, 2400, 4800, and 9600 (Default Ñ9600) Select the SNMP workstationÕs baud rate.
5 Monitoring and Managing the DL3100 5 When you log on to a DL3100, the Node/T3MB Main Menu appears on the terminal screen. Figure 5-1 shows an example of the Node/T3MB Main Menu.
5 ¥ Current T3 Alarms & Status Menu ¥ Current HSDB/HVDB Alarms & Status Menu ¥ Current T3MB Statistics Menu ¥ Current HSDB/HVDB Statistics Menu ¥ Event History Menu ¥ T3MB Bandwidth & Connections Menu Managing the DL3100 also includes performing certain system utility functions, such as: ¥ Backing up the database ¥ Downloading software ¥ Deleting the node conÞguration In this chapter you will learn how to manage and monitor the DL3100 using these menus and utilities.
5 ¥ Remote Node Map Displays the number of the remote node and the status of the link (up or down). ¥ Node ConÞguration Lets you conÞgure certain parameters of the DL3100. ¥ SNMP ConÞguration Lets you conÞgure the DL3100 to communicate with an SNMP Management System. ¥ Delete Entire Node ConÞguration Lets you delete the nodeÕs conÞguration and return to the factory default settings. ¥ Remote Node Terminal Access Lets you log into the DL3100 or DL3000 on the other end of the T3.
5 2. In the Remote Node Terminal Access Menu, enter the remote node number, and press Return. You will be prompted to conÞrm. 3. Select ConÞrm and press Return. When the remote unit is accessed, its name and address appear in the second line of the title bar of the Node/T3MB Main Menu (Figure 5-2). NOTE: Local and remote nodes must have different node numbers.
5 Viewing the Status of the T3 Link You use the Remote Node Map menu to view the status of the T3 link. This is a view only screen that displays the remote node address, the device type, and the status of the link (up or down). To access the Remote Node Map (Figure 5-3), select it from the Node/T3MB Main Menu.
5 Figure 5-4 Current T3MB Alarm and Status Menu To view additional pages with this same set of performance data, use the up and down arrows to scroll through the pages. To update the Current T3MB Alarms and Status Menu, select Repeat and press Return. Table 5-1 shows the T3MB alarm and status conditions. Table 5-1 T3MB Alarms and Status Conditions Message Severity Description “No active alarm or state items.” Status The DL3100 unit is operating correctly.
5 Table 5-1 T3MB Alarms and Status Conditions (Continued) Message Severity Description Red Alarm Major This is a logical OR of the LOS and OOF alarm. It is True if either of LOS or OOF is True. This alarm also illuminates the red LED. Yellow Alarm Major This alarm is True if the yellow signal is received indicating failure on a remote device servicing the T3 data stream. This alarm also illuminates the yellow LED. Idle Signal Detected Status The Idle signal is being received.
5 Table 5-1 T3MB Alarms and Status Conditions (Continued) Message Severity Description FEAC Common Equipment Failure Status Far End Alarm and Control (FEAC) signal was received from remote equipment in the DS3 data stream indicating DS3 Common Equipment Failure.
5 Table 5-1 T3MB Alarms and Status Conditions (Continued) Message Severity Description RAM Test Failed Minor The RAM test failed during DL3100 initialization. ROM Checksum Failed Minor The ROM checksum failed during DL3100 initialization. Processor Restart Status The DL3100 unit has been reset. External Alarm Input Active Status External alarm input relay is active. Excessive Temperature Minor The temperature sensor indicates the DL3100 chassis is “too hot.
5 Figure 5-5 Current HSDB Alarms and Status Items Menu Current HSDB Alarms and Status Items Menu Parameters The Current HSDB Alarms and Status Items Menu parameters are as follows: ¥ Module MissingÑTrue or False True indicates that there is no HSSI interface installed. False indicates that there is a HSSI interface installed. ¥ Module FailureÑTrue or False True indicates that the HSSI interface is not functioning properly. False indicates that the HSSI interface is functioning properly.
5 ¥ CA (data Communications equipment Available) On indicates that the DL3100 DSU is prepared to send and receive data. ¥ TA (data Terminal equipment Available) On indicates that the DTE is prepared to send and receive data. ¥ LA (Loopback Circuit A) This signal is provided to the DL3100 from the DTE. On indicates that the DTE is requesting a loopback. ¥ LB (Loopback Circuit B) This signal is provided to the DL3100 from the DTE. On indicates that the DTE is requesting a loopback.
5 Figure 5-6 Current HVDB Alarms and Status Items Menu Current HVDB Alarms and Status Items Menu Parameters The Current HVDB Alarms and Status Items Menu parameters are: ¥ Module MissingÑTrue or False True indicates that there is no V.35 interface installed. False indicates that there is a V.35 interface installed. ¥ Module FailureÑTrue or False True indicates that the V.35 interface is not functioning properly. False indicates that the V.35 interface is functioning properly.
5 ¥ Loopback Requests DTE (LT+RTS)ÑOn or Off On indicates that the customer equipment (DTE) has requested a loopback test when both RTS and LT are On. DTE (LT)ÑOn or Off On indicates that the customer equipment (DTE) has requested test mode, and is the DTE providing the LT and DTR signal without RTS. This test enables the DTE loopback circuit without the DTE being ready to send data. CTS (Clear to Send)ÑOn or Off On indicates that the DL3100 is ready to accept data from the DTE.
5 Monitoring Network Statistics The Current T3MB Statistics Menu allows you to view the network statistics, as well as clear the menu display and reset the counters. Two separate screens display both current and cumulative data. Current data is deÞned as the number of errors occurring in the current 15-minute interval. Cumulative data is deÞned as the number of errors occurring over the past 24 hours, in 15-minute intervals (including the current interval).
5 Figure 5-8 Current T3MB Statistics Menu - Screen 2 T3MB Statistics Parameters The T3MB Statistics parameters are as follows: ¥ ES (Errored Seconds) OOF is no longer included in errored seconds (ES). An Errored Second is the number of seconds containing at least one P-bit parity or other errors such as CP-bit or AIS.
5 ¥ FS (Failed Seconds) A Failed Second is the number of seconds after the occurrence of ten consecutive Severely Errored Seconds (SESs). Figure 5-9 Current T3MB Statistics Menu - Screen 3 ¥ SES (Severely Errored Second) A Severely Errored Second is a second containing 44 or more CPbit, AIS, or OOF events. ¥ OOF (Out Of Frame) An Out Of Frame Second is the number of seconds that the signal has been out of frame.
5 ¥ P-BIT P-Bit indicates the total number of P-Bit Parity Errors that have occurred during the current interval and over the last 24 hours. ¥ CP-BIT CP-Bit indicates the total number of CP-Bit Parity Errors that have occurred during the current interval and over the last 24 hours. ¥ FBE (Framing Bit Error) A Framing Bit Error (also known as FE) is the occurrence of an error in the F- or M-bit position of the DS3 frame.
5 Comparison of RFC 1407 and the DL3100 Statistics Menu Table 5-2 compares RFC 1407 to the DL3100 Statistics Menu.
5 RFC 1407 Statistics Descriptions Table 5-3 describes the statistics for RFC 1407. Table 5-3 Statistic Type RFC 1407 Statistics Detail Description P-bit Errored Seconds (PES) A PES is an occurrence of one or more PCVs, one or more OOFs, or detection of an incoming AIS within a 1-second time frame. This gauge is not incremented when UASs are counted.
5 Table 5-3 RFC 1407 Statistics Detail (Continued) Statistic Type Description Line Errored Seconds (LES) A Line Errored Second is an occurrence of one or more CVs or one or more LOS defects within a 1-second time frame. C-bit Errored Seconds (CES) An CES is an occurrence of one or more CCVs, one or more OOFs, or detection of an incoming AIS within a 1-second time frame. This count is only for the SYNTRAN and C-bit Parity DS3 applications. This gauge is not incremented when UASs are counted.
5 To access the Current HSDB Statistics Menu, select the HSDB device from any of the main menus. Then select Statistics from the HSDB Main Menu. Follow the same procedure for the HVDB device. The Current HSDB and Current HVDB Statistics Menus look exactly the same except for the menu name. Figure 5-10 shows an example of the Current HSDB Statistics Menu.
5 ¥ Parmain DTE Parity Main (Parmain) is the number of seconds during which a parity error was detected on trafÞc from the DTE board to the network. ¥ FIFO FIFO is the number of times the First-In First-Out bit has locked up during the current interval and in the last 24 hours. ¥ Control Control is the number of times that the DTE board has failed to respond correctly to a message from the controller processor.
5 Figure 5-11 shows an example of the Event History screen. Date & Time Device Address Device Type Event Code Alarm Description Level Figure 5-11 Event History Screen Event History Menu Parameters The Event History Menu parameters are as follows: ¥ Alarm Level Major Ñ Affects service Minor Ñ Requires attention, but is not yet affecting service Idled Ñ Alarm condition has expired Status Ñ No affect on service ¥ Date & Time Date and time of the occurrence or expiration of the alarm/state.
5 ¥ Event Code Number designation for type of alarm or status condition. ¥ Description Describes the event. Monitoring T3MB Bandwidth and Connections The T3MB Bandwidth & Connections Menu displays the amount of bandwidth allocated to each DTE board, as well as the total bandwidth currently in use. NOTE: This is a view-only menu. You cannot allocate bandwidth using this menu. To allocate bandwidth, select T3 Timeslots from the HSDB/HVDB Configuration and Connections Menu.
5 Each of these utilities is accessible from the Node/T3MB Main Menu. Downloading Software The Software Download command is used to upgrade the software on the local DL3100. To access this function, select Software Download from the Node/T3MB Main Menu. Before you download software, make sure you have the following: ¥ An IBM PC (or compatible) with hard disk driveÑfor its MS DOS binary Þle reading capability.
5 2. Execute the emulation program on the PC and set it up to match the DL3100 comm port settings. 3. To begin downloading, you must be logged on to the selected DL3100. Select Software Download from the Node/T3MB Main Menu. To refresh the screen, use Ctrl-L. 4. To select the download mode, highlight the Download Protocol Þeld and use the Space Bar to cycle through the options. Press Return at the desired option.
5 ¥ Reset Entire Node Database to Factory Defaults This operation resets the unitÕs database to its original factory settings. WARNING: Perform the Delete Entire Node Configuration task with great caution. It may interrupt service and adversely affect service. To perform any of these tasks: 1. In the Desired Action Þeld, cycle through the three tasks using the Space Bar. Press Return to select the task. The system sends you a warning message: DO YOU REALLY WANT TO DO THIS? PLEASE CONFIRM: 2.
5 Database backed up to EEPROM. To cause the DL3100 to perform automatic backups after each conÞrmed change, select an Automatic Backup option in the Node ConÞguration Menu. For more information, see ÒConÞguring the NodeÓ on page 4-10 in Chapter 4, ÒConÞguring the DL3100.
6 Diagnosing and Troubleshooting the DL3100 6 The DL3100 performs a self-test upon power-up. During the self-test, messages will appear in the front-panel display in the order listed below: DL3100 SR.XXX.XX (where xxx.xx is the software revision level) NODE STATUS OK EFS 99.9 PERCENT When the percent of Error Free Seconds (EFS) displays, the DL3100 activates its top level menu loop and the unit is ready for operation.
6 If you receive one of these messages, it means that the DL3100 has an internal error. Contact Technical Support at (408) 745-4200 for assistance or to return the unit for repair. Running Diagnostic Tests To verify that your connections and T3 lines are functioning properly, you can run the following basic diagnostic tests.
6 Figure 6-1 T3MB Tests Menu WARNING: Running a loopback test will interrupt traffic to the DL3100. To initiate a loopback: ▼ From the T3MB Tests Menu, select DTE or Network Loopback, use the space bar to toggle to On. With On in the display, select ConÞrm and press Return. To cancel a test that is running: ▼ From the T3MB Tests Menu, select DTE or Network Loopback, use the spacebar to toggle to Off. With Off in the display, select ConÞrm and press Return.
6 of the data is performed by the DL3100. This minimizes any impact that the DL3100 might have on the data so that network problems can be isolated. DTE Loopback The DTE Loopback on the T3MB veriÞes the operation of the signal path from the DTE equipment, through the T3 framer, and back to the DTE connectors. Running this test loops the network transmit signal to the DL3100Õs network receive circuitry. If everything is working properly, the DTE equipment will receive the same signal that it transmitted.
6 Figure 6-2 HVDB Tests Menu WARNING: Running loopback tests will interrupt traffic to the DL3100. NET/DTE Loopback The NET/DTE loopback is a bi-directional loopback that loops the received DTE signal back to the DTE, and the signal from the T3MB back towards the T3MB. This loopback veriÞes operation of the following: ¥ The DTE and associated cabling ¥ The DTE Board ¥ The link between the DTE board and the T3MB NOTE: The NET/DTE Loopback is performed on a single DTE at a time: HSDB/HVDB 1, 2 or 3.
6 ▼ Select DTE/Network Loopback and use the space bar to toggle to Off. With Off in the display, select ConÞrm and press Return. Running Tests from the Front Panel The front panel Test menu is broken down into three submenus: ¥ Network Tests Menu ¥ HSDB/HVDB (1,2, or 3)Tests Menu For more information on running tests from the front panel, refer to ÒUsing the Test MenuÓ on page 7-18 in Chapter 7, ÒUsing the Front Panel Interface.
6 DTE Loopback To initiate a DTE loopback from the front panel, press ENTR when DTE Loopback appears in the display. To end the loopback, press ENTR again while still in the DTE Loopback Menu. Running HSDB/HVDB Tests You can also run an HSDB/HVDB Net/DTE Loopback from the front panel. To select the desired HSDB/HVDB on which to run the loopback, press ENTR when TESTS appears in the display.
6 DL3100 Problems Table 6-1 is a list of problems with suggested solutions. Table 6-2 Troubleshooting Guide Problem Solution The DL3100 does not power up. If the DL3100 is AC powered, make sure it is plugged into a live AC outlet. If it is DC powered, make sure the respective DC leads are not crossed. Check all fuses for opens and replace as needed. If the DL3100 blows fuses continuously, call Digital Link Technical Support. You cannot communicate with the remote DL3100.
6 Table 6-2 Troubleshooting Guide (Continued) Problem Solution The connected DTE device shows intermittent errors. Run a DTE/NET loopback to verify the physical connection between the local DTE device and the DL3100. If errors are reported during this loopback, check the DTE cable. Make sure the DTE device supports the DTE port clocking option. The T3 ports on the DL3100 cannot be put into network loopback from the carrier.
6 6-10 DL3100 User’s Guide—November 1998
7 Using the Front Panel Interface 7 The front panel interface lets you ¥ View and change the DL3100 conÞguration from the ConÞguration Menu. ¥ Run diagnostic tests on the DL3100 from the Test Menu. ¥ View the status of the Node, Network and HSDB or HVDB from the Display Menu. You will Þnd the front panel interface easy to use if you are an experienced user. If you are not, the best way to learn the systemÕs contents and organization is by using the terminal interface.
7 Figure 7-1 shows the DL3100 front panel interface. 16-character flourescent display CONFIGURATION EXIT TEST ENTR STAT GR488 END TEST five-button keypad Figure 7-1 Front Panel Interface The front panel interface can be disabled only from the terminal interface, using the Node ConÞguration Menu. Front Panel Keys You can perform the following functions using the front panel keys at the appropriate time: To cycle through the available options, use the up or down arrows.
7 Throughout this chapter you will see examples of how these keys are used. Some menu items are more complex than others and require a good understanding of the DL3100. How to Navigate the Front Panel Interface The front panel interface is organized into three main menus which are at the top level of a hierarchical structure shown below. Each menu may contain submenus which in turn may contain submenus. To open a menu, you display the menu using the up and down arrows ( ), then press ENTR.
7 To see another submenu, you select it using the up or down arrow and press ENTR. CONFIGURATION ENTR BACKUP DATABASE NODE CONFIG EXIT GR489 T3 NET CONFIG HSDB 1 CONFIG Figure 7-3 Configuration Menu Editing a Parameter To modify a parameter such as the node ID: 1. Open the ConÞguration Menu by pressing ENTR. Toggle through the submenus until the Node ConÞg Menu appears. 2. Press ENTR to open this menu. The node ID appears. 3. Press ENTR again. The actual ID appears. 4.
7 NODE ID ENTR 3100_ _ _ _ _ _ _ _ _ _ _ _ GR491 ENTR first character starts to blink 3100 _ _ _ _ _ _ _ _ _ _ _ _ Figure 7-4 Edit Mode 5. Edit the ID one character at a time. Use the up and down arrows to change a character. 6. Press ENTR for the changes to take effect 7. Repeat the process for each character. 8. To exit the edit mode once you have completed all the desired changes, move the cursor to the next underlined space (_) and press ENTR. Then press EXIT to exit the parameter.
7 Keeping a Record We suggest you keep a written record of each unitÕs conÞguration. For a copy of the conÞguration worksheet, see ÒConÞguration WorksheetÓ on page A-11 in Appendix A, ÒDL 3100 Technical SpeciÞcations.Ó Selecting the Remote or Local Unit The Select Local/Remote command works like a toggle switchÑyou switch between the local and remote unitsÕ front panel interface to monitor one or the other. At the Select Local/Remote display, press ENTR. The display will begin blinking.
7 The ConÞguration submenus are shown below. CONFIGURATION ENTR BACKUP DATABASE NODE CONFIG EXIT GR489 T3 NET CONFIG HSDB 1 CONFIG Figure 7-6 Configuration Submenus The Node Config Submenu The items in the Node ConÞg Menu are shown below. NODE CONFIG ENTR NODE ID NODE NUMBER JUN,24,1998 01.32.23 EXIT NODE COMM PORT NODE HW REV.D GR493 read-only SW REV. 6.01.
7 Use the up and down arrows to move from item to item. To activate edit mode, press ENTR. Node Config Menu Parameters The Node ConÞg Menu parameters are as follows: ¥ Unit ID, node number, date and time Edit each item one character at a time. To move to the next character, press ENTR. ¥ Node Comm Port submenu You can display and modify the comm port settings from the front panel Comm Port submenu.
7 4. To edit the ID, follow the procedure given in ÒEditing a ParameterÓ on page 7-4. 5. Enter the Node Comm Port submenu using the down arrow to select it and press ENTR. BAUD RATE 9600 appears. Press ENTR to activate edit mode. (BAUD RATE 9600 blinks.) 6. Cycle through the available baud rate options using the up or down arrows and press ENTR to select an option, or press EXIT to exit without executing the baud rate change. 7. To move to the next comm port parameter, press the up or down arrow.
7 Configuring the Data Ports You use the HSDB (1, 2, or 3) ConÞg and/or the HVDB (1, 2, or 3) ConÞg Menus to conÞgure your data ports. Refer to ÒConÞguring the HSDB and the HVDBÓ on page 4-21 in Chapter 4, ÒConÞguring the DL3100Ó for a description of the parameters. Configuring the HSDB Follow these steps to conÞgure the HSDB: 1. From the ConÞguration menu, press ENTR and open HSDB (1, 2, or 3) CONFIG using the up or down arrows. Press ENTR. DTE FREQ xx.x MB appears. 2.
7 ¥ Clock Lets you select either Full Clock or Divided Clock. ¥ Service Lets you place the HSDB In Service or Out of Service. ¥ Delete DTE Prohibits the data board from recognizing the DTE. For more information regarding these parameters, refer to ÒConÞguring the HSDBÓ on page 4-22 in Chapter 4, ÒConÞguring the DL3100.Ó ¥ HSDB hardware revision States the hardware revision. ¥ DTE loss detection Lets you select either None or TA. ¥ CA options Lets you select Auto, Assert, or Deassert.
7 4. Press ENTR to activate edit mode. The display starts to blink. To take no action and move to the next item, press EXIT. Press the up or down arrow to select either In Service or Out of Service and press ENTR to conÞrm the option selected. 5. Use the same method to conÞgure the other parameters in the HVDB Menu for this data port. Repeat for any other HVDB data ports.
7 The data in the Display Menu is a subset of the parameters that are available on the terminal interface. You can monitor both the local and remote units from the front panel Display Menu.
7 RAM FAILURE ROM CHKSUM FAIL UNIT RESET DATABASE RESET POWERSUPLY ERR FAN FAILURE BATTERY FAILURE RT CLOCK ERROR EXTERNAL ALARM Use the up and down arrows to view additional messages. Monitoring the Network Status You use the Network Status Menu to view the status of the T3 network. The message ÒNET STATUS OKÓ will appear if the T3 network is operating properly. To view the network status, press ENTR from the Network Status Menu.
7 The parameters that you can view from the Network Statistics Menu are shown next. NET STATISTICS ENTER NET T3 ES NET T3 ES-L NET T3 FS NET T3 ES-P NET T3 SES NET CLR STAT NET T3 OOF NET T3 LOS NET T3 AIS NET T3 BPV NET T3 PBIT NET T3 CPBIT GR498 NET T3 FBE NET T3 FEBE Figure 7-10 Network Statistics Menu For each of these parameters (with the exception of CLR NET STAT) you can view the following set of performance statistics.
7 ¥ CUR345 Counts the number of errors in the current interval for that performance register. ¥ TOTL.679 Counts the number of seconds in error or the number of errors for that performance statistic over the past 24 hours, or since the registers were last cleared. ¥ (1 - 96) =900 Counts the number of seconds in error and the number of errors for that performance statistic during the most recent 15-minute interval.
7 HSDB 1.STATISTICS ENTR HSDB 1 PAR.LOC HSDB 1 PAR.MAIN HSDB 1 FIFO HSDB 1 CONTROL HSDB 1 CLR STAT EXIT HSDB 1 PAR.LOC HSDB 1 PAR.MAIN HSDB 1 FIFO GR494 HSDB 1 CONTROL HSDB 1 CLR STAT Figure 7-11 Statistics Menu For each of these parameters (with the exception of CLR HSDB/HVDB/STAT) you can view the following set of performance statistics.
7 ¥ TOTL.9679 Counts the number of seconds in error or the number of errors for that performance statistic over the past 24 hours, or since the registers were last cleared. ¥ (1 - 96) =900 Counts the number of seconds in error and the number of errors (maximum of 900) for that performance statistic during the most recent 15-minute interval. For example: ¥ 34 = 42 The number to the left of the display signiÞes the 15-minute interval represented (1 to 96).
7 TEST ENTR NODE TESTS NETWORK TESTS HSDB 1 TESTS EXIT GR501 HSDB 2 TESTS HVDB 3 TESTS Figure 7-12 Test Menu You can perform the following tests from the front panel: Network Tests ¥ Net Loopback ¥ DTE Loopback HSDB/HVDB Tests ¥ Net/DTE Loopback Starting and Ending a Test You can run only one test at a time. To run another test, you must terminate the Þrst. 1. To start a test, open the Test Menu and select the test from one of the submenus. The test continues running until you end it. 2.
7 During a Test During a test, you will observe the following: ¥ The TEST LED on the front panel turns red, reminding you that the DL3100 is out of service during the test. ¥ The name of the current test appears in the display with a plus sign (+) to the right of it. ¥ You can open the Monitor or ConÞguration Menu to view performance information or change a conÞguration while a test is in progress.
DL 3100 Technical SpeciÞcations A A This appendix covers various technical speciÞcations. T3 Network Port Interface Table A-1 lists the network port interfaces for the DL3100. Table A-1 T3 Network Port Interface Item Description T3 Line Rate 44.
A Table A-2 External Clock Specifications (Continued) Item Description Input signal Unipolar, unbalanced Input frequency 1.544 Mbps ± 50Hz Connector type BNC Data Interface Table A-3 lists the data interfaces. Table A-3 Data Interfaces Item Description Interface types Up to three V.35 or HSSI ports Data rates Up to 44.2 Mbps in multiples of 300 kbps NOTE: Digital Link recommends using a maximum of 10 Mbps on the V.35 port. You should also check the limitations of the attached DTE device.
A Table A-4 Interface Connectors (Continued) Item Description Local/Remote Port Electrical RS-232C compatible Connector DE-9 socket Other Connectors Alarm Inputs Dry Form C relays Network BNC Communication Port (ASCII) Table A-5 lists the communication ports for ASCII. Table A-5 Communication Port (ASCII) Item Description Baud rate 300, 600, 1200, 2400, 4800, 9600 Parity Odd, Even, or None Data bits 7 or 8 Stop bits 1, 1.
A Table A-6 Communication Port (SNMP NMS) (Continued) Item Description Data bits 8 Stop bits 1, 1.5, or 2 SNMP XON/XOFF Enable or Disable Connector DE-9 socket Protocol SNMP (UDP/IP) over SLIP Diagnostics Table A-7 lists the diagnostic tests and test indicators.
A Table A-8 Mechanical Information Item Description Dimensions 2 RU, 43.2 cm (17 in) W x 29.2 cm (11.5 in) D x 7.7 cm (3 in) H Mounting Rack mounted in a 48.3 cm (19 in) or 58.4 cm (23 in) rack, desktop or stackable Environmental Table A-9 discusses environmental information.
A Alarms The alarms are on the DL3100 are: ¥ Common Alarm Indicator LEDs ¥ Common Visual Alarm Contact through a DE-9 connector ¥ Common Audible Alarm Contact through a DE-9 connector ¥ Common External Alarm Input through a DE-9 connector Alarm Types Table A-11 states the alarm types on the DL3100.
A Fan Filter The fan Þlter should be inspected annually (at a minimum) and cleaned, if necessary. The Þlter can be cleaned with soap and water. If replacement Þlters and mounting clips are needed, they are available from Digital Link, part number DL1100. Front Panel LEDs and Connectors Figure A-1 shows the DL3100 front panel LEDs, buttons, and connectors.
A Connectors Buttons HSDB/HVDB Boards T3 Main Board Table A-12 Front Panel LEDs, Buttons and Connectors (Continued) A-8 LED/Button Status Significance/Function INS Green Amber Red Module is in service and functioning normally Module is operating normally but is out of service Module failure ALM Red Network is in an alarm state RED Red Loss of signal or out-of-frame conditions on receive T3 signal YEL Red Far-end DL3100 or other remote equipment is in red alarm BLU Red AIS received den
A DL3100 Cable Model Numbers Table A-13 gives cable model numbers for the DL3100. Table A-13 Cables Model Number Description To Communications Port DL1081 DE-9 socket to DE-9 plug, 2 connections DL1082 DE-9 socket to DE-9 plug, 4 connections DL1083 DE-9 socket to DE-9 plug, 8 connections To Network DL1405-10 T3 network cable, 3 m (10 ft) DL1405-25 T3 network cable, 7.5 m (25 ft) To Data Terminal Equipment DL1400-10 V.35, M-34 plug to DB-25 plug, 3 m (10 ft) DL1401-10 V.
A T3MB Alarm Thresholds Major Minor Bipolar Violations 1 x 10 -4 1 x 10 -6 P-bit Parity Errors 1 x 10 -4 1 x 10 -6 CP-bit Parity Errors 1 x 10 -4 1 x 10 -6 Frame Bit Errors 1 x 10 -4 1 x 10 -6 Data Port Configuration - HSDB Data Port Configuration - HVDB Module Service In Service CTS Control Assert Hardware Rev. (read-only) SCTE Normal Module Name Not assigned Data Rate 300 kbps-44.2 Mbps Clock Mode Normal SNMP Configuration Node IP Address 0.0.0.0 Node IP Subnet Mask 0.0.
A Configuration Worksheet Use this worksheet to keep a written record of your conÞguration.
A Node IP Address Node IP Subnet Mask Trap IP Address Read Community String Write Community String Trap Community String SNMP Baud Rate SNMP #Bits and Parity SNMP Stop Bits Output Port Comm Port and Terminal Configuration Connection Terminal Mode Timeout when Logged on Phone Number 2 Timeout when not Logged on Phone Number 1 Comm Port Normal User Password Comm Port DCD Superuser Password Comm Port XON/XOFF A-12 DL3100 User’s Guide—November 1998
B DL 3100 Connector and Pin Assignments B This appendix covers connector and pin assignments for the DL3100. DB-25 to V.35 Data Port Connector Pin Assignments (DL1401) Table B-1 lists the pin assignments for the DB-25 to V.35 DTE connector. Table B-1 DB-25 to V.35 DTE Connector Pin Assignments Pin No. Pin Name Signal Name Signal V.
B 50-Pin HSSI Data Port Connector Pin Assignments (DL1404) The pin assignments for the 50-Pin HSSI Connector pin assignments are listed below in Table B-2. Table B-2 Pin No. Pin No.
G Glossary G ABAM A designation for 22 gauge, 110 ohm, plastic insulated, twisted pair Western Electric cable normally used in central ofÞces. AIS (Alarm Indication Signal) An unframed sequence of All Ones normally sent by a DSU/CSU that cannot maintain the required pulse density in AMI mode or sent by a CSU that has a loss of signal condition on its data port. The signal is sent to maintain continuity of transmission and to notify the far-end that a transmission fault exists on the line.
G bandwidth The data-carrying capacity of a transmission medium, usually measured in Hertz (Hz), which equals cycles per second. baud A measurement of the signaling speed of a data transmission device. BER See bit error rate. BES (Bursty Errored Seconds) Occurs when a second has 320 or more CRC violations.
G C CCITT International Telegraph and Telephone Consultative Committee. central ofÞce (CO) The phone company switching facility or center; usually a Class 5 end ofÞce, at which subscribers' local loops terminate. channel A physical or logical path allowing the transmission of information; the path connecting a data source and receiver. circuit Generally referring to a transmission medium connecting two or more electronic devices.
G CRC (Cyclic Redundancy Check) An error checking scheme used to check the received data. The CRC bits within the framing are calculated using the contents of the frame. The calculation is performed again when the frame is received and the CRC values are compared. If they do not match, the frame is considered bad and the CRC statistic is incremental. Performance checking is done by both the carrier and the customer without causing any interference with the T-1 trafÞc.
G DCE (Data Circuit-Terminating Equipment) Equipment that is either a part of the network, an access point to the network, a network node, or equipment at which a network circuit terminates. dial-up Describing the process of, or the equipment or facilities involved in, establishing a temporary connection via the switched telephone network.
G DSU/CSU (Data Service Unit/Channel Service Units) The pair of communications devices that connect an in-house line to an external digital circuit. At the customer's end of the telephone connection, the DSU/CSU takes data from terminals and computers, encodes it, and transmits it down the link. At the receive end, another DSU/CSU equalizes the received signal, Þlters it, and decodes it for interpretation by the end-user.
G ESF (Extended Superframe Format) A new T1 framing standard used in Wide Area Networks (WANs). With this format 24 frames, instead of 12 are grouped together. ESF provides frame synchronization, cyclic redundancy checking and data link bits in overhead. It allows more information to be stored and retrieved easily, facilitating network performance monitoring and maintenance. F failed signal state Occurs when ten consecutive severely errored seconds are detected.
G frame ground A metallic layer acting as a shield, consisting of tape, braid, wire or sheath and surrounding insulated conductors in cable. It may be the metallic sheath of the cable or the metallic layer inside a nonmetallic sheath. It reduces stray electrical Þelds, prevents outside electrical interference, drains off current induced by lightning and provides for safety of personnel. frequency The number of repetitions per unit time of a complete waveform.
G LOS (Loss of Signal) Occurs when an input signal is detected as all zeros for 176 bit times. loss A reduction in signal strength, expressed in decibels. LSC (Loopback Select Code) An indicator describing a DSU loopback characteristic. LSC is a minimum of 35 LSC bytes of S11101F1 with secondary channel. LT (Local Test) A data port signal to DSU/CSU. M mask Refer to subnet mask. MIB (Management Information Base) A structure that deÞnes what is obtainable from a network device and what can be controlled.
G network An interconnection of computer systems, terminals, or data communications facilities. NI (Network Interface) The point of demarcation between the customer premises and the carrier's network, usually drawn at the network connector on the rear panel of the Digital Link access device. NRZ (Non-Return to Zero) A binary encoding and transmission scheme where ÒonesÓ and ÒzerosÓ are represented by opposite, and alternating, high and low voltages.
G R RD (Receive Data) A data port signal. receiver The receiver synchronizes the framing pattern, separates the frame bits from the payload data and monitors for frame errors in 64K mode. It achieves frame synchronization within 5msec (ANSI T1.410-1992 Section 8.2). repeater Equipment that receives a pulse train, ampliÞes it, retimes it, and then reconstructs the signal for retransmission.
G S SCR (Serial Clock Receive) A unipolar clock from the DCE signal. A data port signal. SCT (Serial Clock Transmit) A unipolar clock from the DCE signal. A data port signal. SCTE (Serial Clock Transmit External) The clock signal is echoed from the DTE for the purpose of timing incoming data on long cable runs. scrambler A device or software program that encodes data for encryption. It distorts a voice or data conversation so that only another like device can Þgure out the content of the message.
G SNMP (Simple Network Management Protocol) A widely-used network monitoring and control protocol. Data is passed from SNMP agents (hardware and/or software processes reporting activity in each network device, hub, router, bridge, etc.) to the workstation console used to oversee the network. The agents return information contained in a MIB (Management Information Base), which is a structure that deÞnes what is obtainable from the device and what can be controlled.
G TRAP A mechanism by which a device automatically sends an alarm for certain network events to a management station. The management station can initiate a polling sequence to the device to determine the cause of the problem. U UAS (Unavailable Seconds) Number of seconds elapsed after 10 consecutive SES events are received (ESF framing only). V V.35 A CCITT standard for the trunk interface between a network access device and a packet network. It deÞnes signaling for data rates greater than 19.2 Kbps. V.
I Numerics 240 VAC 3-6 A AC power 3-6 access rights 4-15 accessing Remote Node Terminal 4-9, 5-3 adapters 9-pin to 25-pin 4-3 address device 4-7 Alarm Indication Signal (AIS) 5-16 alarms alarm input speciÞcations A-3 Alarms and Status 4-22 monitoring 5-5 speciÞcations A-6 T3MB thresholds 4-18 applications data link 4-17 autogrow 4-12 automatic backup 4-12 AWG tray cable 3-6 B backing up the database 5-2, 5-27 bandwidth bandwidth and connections 4-9 baud rate, comm port 4-2 Bipolar Violations (BPV) 5-16 C ca
I Data Path (Idle or Test) Signal Received from DTE (Carrier) 4-21 data rate 2-3, 4-24, 4-26 date parameter 4-11, 5-23 DB-25 connector installing V.
I G grounding conductor A-6 grounding, DC power 3-7 H hardware rev 4-17, 4-23 HSDB conÞguring 4-21, 4-22 conÞguring from the front panel 7-10 Current HSDB Alarms & Status Items Menu 5-9 Current HSDB Alarms & Status Items Menu parameters 5-10 HSDB ConÞguration and Connections Menu 422 HSDB ConÞguration and Connections Menu parameters 4-23 HSDB Main Menu 4-21 HSDB Main Menu parameters 4-22 monitoring 5-9 HSSI High Speed Serial Interface (HSSI) 2-1 HVDB conÞguring 4-21, 4-25 conÞguring from the front panel 7-1
I network status from front panel 7-14 node status from front panel 7-13 statistics 5-13 Motorola S-Record 5-26 mounting DL3100 3-4 front 3-4, 3-5 mid 3-5 multidrop mode for daisy-chaining 4-4 N network installing 3-8 monitoring alarms and status 5-5 monitoring statistics 5-14 port interface speciÞcations A-1 tests 6-6 Network Tests Menu 6-6 node conÞguring 4-9, 4-10, 5-3 Node ConÞguration Menu parameters 4-11 node database, resetting 5-27 Node IP address 4-27 Node IP subnet mask 4-27 node number 4-13 node
I data interface A-2 diagnostics A-4 downloadable software A-5 environmental A-5 interface connectors A-2 mechanical A-4 power A-4 T3 network port interface A-1 statistics Current HSDB/HVDB Statistics Menu 5-21 Current T3MB Statistics Menu 5-14 displaying from front panel 7-12 monitoring 5-13 monitoring HSDB/HVDB from front panel 7-16 monitoring network statistics from front panel 714 RFC 1407 5-19 statistics parameter 4-22 status displaying from front panel 7-12 monitoring 5-5 monitoring HSDB/HVDB 7-14 mon
I power 3-7 WECO cable 3-8, 3-9 word length 4-1 write community string 4-28 X XMODEM 5-26 I-6 DL3100 User’s Guide—November 1998
