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Digital Link DL3100 User Manual

T3 access multiplexer
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T3 Access
Multiplexer
DL3100
User's Guide
Part 098-20590-02 Rev. C
November 1998

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  • Page 1 T3 Access Multiplexer DL3100 User’s Guide Part 098-20590-02 Rev. C November 1998...
  • Page 2 In no event shall Digital Link be liable for incidental, indirect, special or consequential damages resulting from any such cause event if Digital Link is aware of the possibility of such damages. Digital Link may, atits sole option, either repair or replace defective goods or work, and shall have no further obligation to buyer.
  • Page 3 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;...
  • Page 4 NOTE: As per the Voluntary Control Council for Interference by Information Technology Equipment (VCCI), the DL3100 complies with VCCI Class 1 ITE. This equipment is in the 1st Class category (information equipment to be used in commercial and/or industrial...
  • Page 5 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.
  • Page 6 DL3100 User’s Guide—November 1998...

  • Page 7: Table Of Contents

    Symbols Typography Digital Link Technical Support xxii Returning a Unit xxii Send Us Your Comments xxiii Chapter 1, DL3100 Quick ConÞguration Required Pre-Configuration Information Getting Started Setting a Parameter in a Menu Unit Configuration Configuration Actions T3MB Configuration Configuration Actions...
  • Page 8 Installing the DL3100 with AC Power Installing the DL3100 with DC Power Connecting the DL3100 to a T3 Network Connecting the DL3100 to a DTE Connecting the DL3100 to an External Clock Source Chapter 4, ConÞguring the DL3100 Required Information Keeping a Record...
  • Page 9 Monitoring Statistics 5-13 Monitoring Network Statistics 5-14 T3MB Statistics Parameters 5-15 Comparison of RFC 1407 and the DL3100 Statistics Menu 5-18 Notes on RFC1407 MIB far end statistics support 5-18 RFC 1407 Statistics Descriptions 5-19 Monitoring HSDB and HVDB Statistics...
  • Page 10 Downloading Software 5-25 Deleting the Entire Node Configuration 5-26 Backing Up the Database 5-27 Chapter 6, Diagnosing and Troubleshooting the DL3100 Running Diagnostic Tests Running Tests Using the Terminal Interface Testing the T3MB DTE/Network Interface Network Loopback DTE Loopback Send FEAC Code...
  • Page 11 Editing a Parameter Preparing for the Initial Configuration Required Information Keeping a Record Selecting the Remote or Local Unit Configuring the DL3100 The Node Config Submenu Node Config Menu Parameters The Comm Port Parameters The T3 Net Config Menu Configuring the Data Ports...
  • Page 12 Alarms Alarm Types Equipment Grounding Conductor Fan Filter Front Panel LEDs and Connectors DL3100 Cable Model Numbers Factory Default Configuration Configuration Worksheet A-11 Appendix B, DL 3100 Connector and Pin Assignments DB-25 to V.35 Data Port Connector Pin Assignments (DL1401)
  • Page 13 Figure 1-4 HSDB Main Menu Figure 1-5 HSDB ConÞguration and Connections Figure 2-1 DL3100 T3 Access Multiplexer Figure 3-1 DL3100 Front Mounted in a 19-inch Rack Figure 3-2 DL3100 Mid-mounted in a 19-inch Rack Figure 3-3 Terminal Block on Rear Panel...
  • Page 14 Figure 5-7 Current T3MB Statistics Menu - Screen 1 5-14 Figure 5-8 Current T3MB Statistics Menu - Screen 2 5-15 Figure 5-9 Current T3MB Statistics Menu - Screen 3 5-16 Figure 5-10 Current HSDB Statistics Menu 5-21 Figure 5-11 Event History Screen 5-23 DL3100 User’s Guide—November 1998...
  • Page 15 Figure 7-7 Node ConÞg Menu Figure 7-8 T3 Net ConÞg Menu Figure 7-9 Display Menu 7-13 Figure 7-10 Network Statistics Menu 7-15 Figure 7-11 Statistics Menu 7-17 Figure 7-12 Test Menu 7-19 Figure A-1 DL3100 Front Panel LEDs and Buttons List of Figures...
  • Page 16 DL3100 User’s Guide—November 1998...
  • Page 17 List of Tables Table 3-1 Installation Steps Table 3-2 Required Equipment Table 4-1 Part Numbers for DL3100 Units Table 5-1 T3MB Alarms and Status Conditions Table 5-2 Statistics Menu Comparisons 5-18 Table 5-3 RFC 1407 Statistics Detail 5-19 Table 6-1 Self-Test Error Indicator...
  • Page 18 Table A-10 Regulatory Compliances Table A-11 Alarm Types Table A-12 Front Panel LEDs, Buttons and Connectors Table A-13 Cables Table B-1 DB-25 to V.35 DTE Connector Pin Assignments Table B-2 50-Pin HSSI Connector Pin Assignments xviii DL3100 User’s Guide—November 1998...

  • Page 19: Preface

    Chapter 2, ÒAbout the DL3100,Ó provides a description of the DL3100, the components you should have received in your shipping carton, and the hardware requirements for setting up the DL3100 in your network. Chapter 3, ÒMechanically Installing the DL3100,Ó provides guidelines for mechanically installing the DL3100 components.

  • Page 20: Conventions

    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.

  • Page 21: Typography

    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 Purpose Example The names of commands, files, and Edit your.login Þle. Courier Font directories, as well as on-screen AaBbCc123 Use ls -a to list all Þles.

  • Page 22: Digital Link Technical Support

    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 (408) 745-4240 Email support@dl.com Internet www.dl.com...

  • Page 23: Send Us Your Comments

    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 (408) 745-6250 Email techpubs@dl.com All suggestions and comments are appreciated.
  • Page 24 DL3100 User’s Guide—November 1998...

  • Page 25: Chapter 1, Dl3100 Quick Conþguration

    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.

  • Page 26: Getting Started

    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 conÞguration from the front panel.

  • Page 27: Unit Configuration

    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. DL3100 Quick Configuration...

  • Page 28: Configuration Actions

    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.

  • Page 29: Configuration Actions

    5. Set the Applications Data Link coding: NRZ or NRZI. Applications Data Link sets the T3 Data Link coding. Both the local and remote DL3100Õs must be set the same. If you are unsure, set both to NRZI. DL3100 Quick Configuration...

  • Page 30: Dte Port Configuration

    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.

  • Page 31: 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...
  • Page 32 DL3100 User’s Guide—November 1998...

  • Page 33: Chapter 2, About The Dl3100

    It can function as a T3 Data Service Unit (DSU) or T3 Feeder Multiplexer. The DL3100 interfaces up to three DTE Boards (ports) to one T3 facility, and can be accessed locally or remotely via a dial-up modem or through the T3 line itself in a ÒmodemlessÓ...

  • Page 34: Dl3100 Features

    A built-in power supplyÑThe power supply has a range of 120 VAC to 240 VAC or -48 VDC. The DL3100 must be ordered as an AC or DC powered unit. DL3100 Features The DL3100 offers the following features: ¥...

  • Page 35: How The Dl3100 Works

    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.
  • Page 36 DL3100 User’s Guide—November 1998...

  • Page 37: Chapter 3, Mechanically Installing The Dl3100

    “Connecting the DL3100 to an External Clock Source” on page 3-9 “Connecting an ASCII Terminal” on page 4-1 When you complete these steps, you are ready to conÞgure the DL3100. For more information on conÞguring, refer to Chapter 4, ÒConÞguring the DL3100.Ó...

  • Page 38: Required Location And Equipment

    Required Location and Equipment Install the DL3100 in a restricted access area in accordance with the National Electric Code, ANSI/NFPA 70, Articles 110-16, 110-17, and 110-18. An example of a restricted access area is a dedicated equipment room or closet that is clean, well-ventilated, and free of environmental extremes.

  • Page 39: About Your Power Supply

    Be sure to connect the positive terminal to ground. About Grounding You will ground the DL3100 using a cable connected to a screw terminal on the DL3100 rear panel. For information about grounding cables, see Appendix A, ÒDL 3100 Technical SpeciÞcations.Ó...

  • Page 40: About Mounting The Unit In A Rack

    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:...

  • Page 41: Front-Mounting In A 23-Inch Rack

    RTS CTS DTR INSTEST TD RD TA CA INSTEST TD RD TA CA INSTEST TD RD TA CA TEST EXIT ENTR STAT INS ALM OFFYEL AIS BPVPAR TEST Figure 3-2 DL3100 Mid-mounted in a 19-inch Rack Mechanically Installing the DL3100...

  • Page 42: Installing The Dl3100 With Ac Power

    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. NOTE: An AC power cord is supplied with the DL3100 to provide 120 VAC to 240 VAC power.

  • Page 43: Figure 3-3 Terminal Block On Rear Panel

    WARNING: Damage to the DL3100 may result if power is connected improperly. Do not operate the DL3100 without an earth ground connection to the ground stud or FGND terminal! The DL3100 automatically runs a self-test at power up, during which the front panel displays a self-test message.

  • Page 44: Connecting The Dl3100 To A T3 Network

    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).

  • Page 45: Connecting The Dl3100 To An External Clock Source

    ¥ 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.
  • Page 46 3-10 DL3100 User’s Guide—November 1998...

  • Page 47: Chapter 4, Conþguring The Dl3100

    ConÞguring the DL3100 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.

  • Page 48: Connecting A Terminal To A Comm (Terminal) Port

    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.

  • Page 49: Connecting The Terminal Port Through A Modem

    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.

  • Page 50: Table 4-1 Part Numbers For Dl3100 Units

    3. To multidrop the NETWORK MANAGEMENT port, connect the cableÕs DE-9 plug connector to the NETWORK MANAGEMENT port socket on each DL3100. Plug the socket end of the DE-9 cable to your NMS workstation. The connection between your DL3100 and your NMS workstation must be a SLIP connection.

  • Page 51: Logging On To The Dl3100

    Figure 4-2 Daisy-chained DL3100 units Logging on to the DL3100 To log on to the DL3100: 1. If you know the node number, skip to step 3. 2. If you do not know the node number, press Ctrl-X Þve times to display a roll call of all node numbers.

  • Page 52: Using The Terminal Interface

    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. To log on to another DL3100 on the same daisy chain, press Ctrl- X, then type the pound sign (#) followed by the node number.

  • Page 53: What Youõll See On The Screen

    DTE boards one, two, and three. What You’ll See on the Screen Figure 4-3 describes the general layout of the terminal interface screens, using the Node/T3MB Main Menu as an example. Configuring the DL3100...

  • Page 54: Node/T3Mb Main Menu Selections

    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. DL3100 User’s Guide—November 1998...
  • Page 55 Lets you delete the nodeÕs conÞguration and return to the factory default settings. ¥ Remote Node Terminal Access Lets you log into the DL3100 or DL3900 on the other end of the T3. ¥ T3MB ConÞguration Lets you conÞgure certain parameters on the T3MB.

  • Page 56: Configuring The Dl3100

    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.

  • Page 57: Unit Configuration Menu Parameters

    Unit Configuration Menu Parameters The Unit ConÞguration Menu parameters are: ¥ DATE Enter a valid date using the format mm/dd/yy. mm 1-12 month dd 1-31 date yy 0-99 year (90-99 = 1990-1999; 0-89 = 2000-2089) Example: 5/28/2 yields 05/28/02 Configuring the DL3100 4-11...
  • Page 58 ¥ Front PanelÑOn or Off (DefaultÑOn) Lets you conÞgure or run tests using the front panel display buttons. ¥ Permit Select Device from Remote Permits or denies a remote user access to the local DL3100 by setting this parameter to Yes or No. 4-12...
  • Page 59 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. You are not able to log on to another DL3100 if its node number is blank or zero. ¥ Soft Serial # A read-only Þeld that speciÞes a preset number from the factory.

  • Page 60: Login Configuration

    To open the menu, select Login ConÞguration in the Node ConÞg Menu and press Return. Figure 4-6 Login Configuration Menu When you log on to a DL3100 for the Þrst time you are User 1 with full access privileges. 4-14 DL3100 User’s Guide—November 1998...

  • Page 61: Login Configuration Parameters

    If no user has full access rights or if you donÕt know the password to log on, no one can access the DL3100. Call Digital Link Technical Support. The unit will have to be returned to the factory to be reset.

  • Page 62: Configuring The T3Mb

    T3MB Configuration Menu T3MB Configuration Menu Parameters The T3MB ConÞguration Menu allows you to set the following parameters: ¥ Device Name Enter an alphanumeric name of up to 20 characters (numbers, letters, and spaces are acceptable). 4-16 DL3100 User’s Guide—November 1998...
  • Page 63 ¥ 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 + 1.
  • Page 64 NOTE: Though the P-bit and C-bit Parity Error thresholds can be set through this screen, they are independent of the C-bit and P-bit parameters which activate the PAR LED on the DL3100. These are always set at 10-6, per Bellcore requirements.

  • Page 65: Configuring The T3Mb Tdl

    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 Figure 4-9 show examples of each menu. Figure 4-8 T3MB TDL Configuration Menu—C-bit Parity Configuring the DL3100 4-19...

  • Page 66: T3Mb Tdl Configuration Menu Parameters

    Enter an alphanumeric name of up to six characters identifying the equipment's location within an equipment bay. ¥ Facility IdentiÞcation Code Enter an alphanumeric name of up to 38 characters (numbers, letters, and spaces are acceptable) identifying the speciÞc DS3 path. 4-20 DL3100 User’s Guide—November 1998...

  • Page 67: Configuring The Hsdb And The Hvdb

    To access the HSDB or HVDB Main Menu, select the HSDB or HVDB device from the Node/T3MB Main Menu. Figure 4-10 shows an example of the HSDB Main Menu. The HVDB Main Menu looks exactly like the HSDB except for the title. Configuring the DL3100 4-21...

  • Page 68: Hsdb And Hvdb Main Menu Parameters

    Provides current performance statistics for the T3MB module and allows you to reset the counters. ¥ Tests Lets you perform DTE and Network loopbacks. Configuring the HSDB You use the HSDB ConÞguration and Connections Menu to conÞgure the HSDB. 4-22 DL3100 User’s Guide—November 1998...

  • Page 69: Hsdb Configuration And Connections Menu Parameters

    ¥ Hardware Rev This is a viewÐonly Þeld. The hardware rev is set at the factory and cannot be changed. ¥ Module Name Enter an alphanumeric name of up to 20 characters (numbers, letters, and spaces are acceptable). Configuring the DL3100 4-23...
  • Page 70 If the DTE loss detection is set to TA (Terminal Available), and the TA lead is asserted, then the device is up. If the TA lead is not asserted, the DL3100 assumes the DTE device is down and cuts the RT clock to the DTE.

  • Page 71: Configuring The Hvdb

    DTE regardless of the status of the RTS signal. Auto CTSÑSelect this mode to activate CTS when RTS is active and either a loop is in progress or the DTE is connected to the T3. Configuring the DL3100 4-25...

  • Page 72: Configuring For Snmp Management

    ¥ TD ClockÑSCT or SCTE; Normal or Invert Lets you determine whether the transmit clock is to be received from the DTE leads or from the DL3100. It also lets you set the clock to normal or inverted. SCTÑ Select SCT as the smooth clock from the DCE signal, if your DTE device does not support the SCTE signal.

  • Page 73: Snmp Configuration Menu Parameters

    ¥ Trap IP Address Enter the IP address of the SNMP workstation that will receive trap event messages from the DL3100. ¥ Read Community String (text string) (Default Ñ public) Enter an alphanumeric text string (maxÑ31 characters) that identiÞes a portion of the SNMP network that can read messages from the node.
  • Page 74 ¥ SNMP #Bits and ParityÑ8 bits; No parity, Even parity, or Odd Parity (DefaultÑ8 bits; No parity) Select the SNMP workstationÕs number of bits and parity. ¥ SNMP Stop BitsÑ1 bit, 1.5 bits, or 2 bits (DefaultÑ2 bits) Select the SNMP workstationÕs stop bits. 4-28 DL3100 User’s Guide—November 1998...

  • Page 75: Chapter 5, Monitoring And Managing The Dl3100

    Monitoring and Managing the DL3100 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. Two most recent alarms and status events Device type...

  • Page 76: Node/T3Mb Main Menu Selections

    In this chapter you will learn how to manage and monitor the DL3100 using these menus and utilities. You also use the LEDs on the DL3100 front panel to monitor and manage the system. The LEDs alert you to possible problems and provide a quick indication of unit and DTE status.

  • Page 77: Accessing The Remote Node Terminal

    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. ¥ T3MB ConÞguration Lets you conÞgure certain parameters on the T3MB.

  • Page 78: Figure 5-2 Remote Access Of Node/T3Mb Main Menu

    Node/T3MB Main Menu (Figure 5-2). NOTE: Local and remote nodes must have different node numbers. Local Unit Node Number Remote Node Remote Node Name Address Figure 5-2 Remote Access of Node/T3MB Main Menu DL3100 User’s Guide—November 1998...

  • Page 79: Viewing The Status Of The T3 Link

    Figure 5-3 Remote Node Map Monitoring Alarms and Status To monitor DL3100 alarms and status, youÕll use the following submenus: ¥ Current T3MB Alarms and Status Menu ¥ Current HSDB Alarms and Status Items Menu ¥ Current HVDB Alarms and Status Items Menu...

  • Page 80: Figure 5-4 Current T3Mb Alarm And Status Menu

    Battery Failed or Disabled Minor The battery is dead. Loss of Signal Status The DL3100 unit detected loss of receive signal (LOS) on the DS3 interface. This alarm is also sent as a FEAC LOS signal to the remote unit. Out of Frame...
  • Page 81 DS3 data stream indicating DS3 Equipment Failure Service Affecting (SA). FEAC Equipment Failure (NSA) Status Far End Alarm and Control (FEAC) signal from remote equipment in the DS3 data stream indicating DS3 Equipment Failure Not Service Affecting (NSA). Monitoring and Managing the DL3100...
  • Page 82 An event is any frame from which one or both CP-bits are incorrect. CPPE Major Threshold Exceeded Major The CP-bit Parity Error (CPPE) count has exceeded the configured major threshold. Transmit Signal Loss Detected Major The DL3100 detected a loss of the transmit signal. DL3100 User’s Guide—November 1998...

  • Page 83: Monitoring Hsdb And Hvdb Alarms And Status

    External alarm input relay is active. Excessive Temperature Minor The temperature sensor indicates the DL3100 chassis is “too hot.” This could be caused by a failure of the cooling fan, blockage of cooling vents, or poor site selection when the unit was installed. The unit is designed to operate at <...

  • Page 84: Current Hsdb Alarms And Status Items Menu Parameters

    On indicates that a loopback test was requested by the user. DTE (DTE)ÑOn or Off On indicates that a loopback test was requested by the DTE providing the LA or LB signal on the interface. 5-10 DL3100 User’s Guide—November 1998...
  • Page 85 ¥ 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.

  • Page 86: Current Hvdb Alarms And Status Items Menu Parameters

    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. 5-12 DL3100 User’s Guide—November 1998...

  • Page 87: Monitoring Statistics

    CTS (Clear to Send)ÑOn or Off On indicates that the DL3100 is ready to accept data from the DTE. DSR (Data Set Ready)ÑOn or Off On indicates that the DL3100 is ready to accept data from the DTE.

  • Page 88: Monitoring Network Statistics

    (as appropriate) to scroll through the pages. To view a different set of statistics, select Next and press Return. Use the down arrow to scroll through additional pages with the same set of statistics. 5-14 DL3100 User’s Guide—November 1998...

  • Page 89: T3Mb Statistics Parameters

    ¥ 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. Monitoring and Managing the DL3100 5-15...

  • Page 90: Figure 5-9 Current T3Mb Statistics Menu - Screen

    An Alarm Indication Signal is the number of seconds in which an alarm condition exists in the network. ¥ BPV (Bipolar Violations) A Bipolar Violation is the occurrence of two consecutive ÒonesÓ bits of the same polarity, or an excessive zero (EXZ) event. 5-16 DL3100 User’s Guide—November 1998...
  • Page 91 DS3 interface. ¥ FECCV (Far End CCVs) Far End CCVs is the number of Far End C-bit Coding Violations reported via the far end block error count encountered by a DS3 interface. Monitoring and Managing the DL3100 5-17...

  • Page 92: Comparison Of Rfc 1407 And The Dl3100 Statistics Menu

    Comparison of RFC 1407 and the DL3100 Statistics Menu Table 5-2 compares RFC 1407 to the DL3100 Statistics Menu. Table 5-2 Statistics Menu Comparisons RFC 1407 Statistics DL3100 Statistics Menu Equivalent PES - P-bit Errored Seconds AIS, OOF, P-BIT, ES-P...

  • Page 93: Rfc 1407 Statistics Descriptions

    first get occurs during the first few seconds of the window. This is viewed as an unavoidable side-effect of selecting the presently defined managed objects as a basis for this memo. Monitoring and Managing the DL3100 5-19...

  • Page 94: Monitoring Hsdb And Hvdb Statistics

    Cumulative data is deÞned as the number of errors occurring over the past 96 hours, in 15-minute intervals (including the current interval). NOTE: If the counters have been reset in the past 24 hours, the display will only show those occurrences since the last reset. 5-20 DL3100 User’s Guide—November 1998...

  • Page 95: Figure 5-10 Current Hsdb Statistics Menu

    The HSDB and HVDB Statistics parameters are as follows: ¥ Parloc DTE Parity Lock (Parloc) is the number of seconds during which a parity error was detected on trafÞc from the T3MB to the DTE board. Monitoring and Managing the DL3100 5-21...

  • Page 96: Displaying The Event History

    Displaying the Event History You use the Event History Menu to review and clear the alarm and status history of the DL3100 and all its boards. To open the menu, select Event History from the Node/T3MB Main Menu and press Return.

  • Page 97: Event History Menu Parameters

    ¥ Date & Time Date and time of the occurrence or expiration of the alarm/state. ¥ Device The address (node address) and type (T3MB, HSDB, HVDB) of the device reporting the status and alarm condition. Monitoring and Managing the DL3100 5-23...

  • Page 98: Monitoring T3Mb Bandwidth And Connections

    To allocate bandwidth, select T3 Timeslots from the HSDB/HVDB Configuration and Connections Menu. For information on bandwidth, see “Configuring the HSDB and the HVDB” on page 4-21 Chapter 4, “ Configuring the DL3100.” To access the T3MB Bandwidth & Connections Menu (Figure 5-12), select T3 Bandwidth &...

  • Page 99: Downloading Software

    Xmodem or Kermit binary transfer capability. ExampleÑ Procomm, Mirror or Xtalk. ¥ An RS-232 connection between PC and DL3100ÑDoes not require a null modem since the DE-9 (terminal) connector is pinned-out on the DL3100. DE-9 to DB-25 adaptors may be required, depending on the We also recommend that you: ¥...

  • Page 100: Deleting The Entire Node Configuration

    You may need to perform the download again if any communications errors are encountered. To Þnd out if the download has been successful, log into the DL3100 and check the software revision number. If the software revision number has been updated, the download is complete.

  • Page 101: Backing Up The Database

    Backing Up the Database To manually backup the database to the EEPROM, select Backup Database from the Node/T3MB Main Menu and press Return. The following message will display indicating that the backup is complete: Monitoring and Managing the DL3100 5-27...
  • Page 102 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 Chapter 4, ÒConÞguring the DL3100.Ó...

  • Page 103: Chapter 6, Diagnosing And Troubleshooting The Dl3100

    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. If an error is detected during the self-test, the unit will momentarily display an error message, followed by the default display (EFS XX.XX...

  • Page 104: Running Diagnostic Tests

    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.

  • Page 105: Network Loopback

    Network Loopback The Network Loopback veriÞes the operation of the network, by looping the data received from the network back towards the network. The data is regenerated prior to being looped back; however, no additional processing Diagnosing and Troubleshooting the DL3100...

  • Page 106: Dte Loopback

    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.

  • Page 107: Net/Dte Loopback

    HSDB/HVDB 1, 2 or 3. To initiate a test: Select DTE/Network Loopback and 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: Diagnosing and Troubleshooting the DL3100...

  • Page 108: Running Tests From The Front Panel

    To end the loopback, press ENTR again while still in the Net Loopback Menu. NOTE: You can cancel a test or loopback from any place in any menu by pressing the up and down arrows simultaneously. However, this will cancel all tests and loopbacks currently in progress. DL3100 User’s Guide—November 1998...

  • Page 109: Dte Loopback

    To run a Lamp Test, press the STAT and ENTR buttons simultaneously. All the LEDs on the front panel should light. If any LEDs do not light, call Digital Link Customer Support at (408) 745- 4200. For a description of front panel LEDs, see Appendix A, ÒDL 3100 Technical...

  • Page 110: Dl3100 Problems

    Table 6-2 Troubleshooting Guide Problem Solution If the DL3100 is AC powered, make sure it is plugged into a live AC The DL3100 does outlet. If it is DC powered, make sure the respective DC leads are not not power up.
  • Page 111 Make sure the comm port parameters match the terminal’s and the DL3100 has a unique ID. If the DL3100 is in a daisy-chain, you can display a roll call of all unit numbers by pressing Ctrl-X five times. Diagnosing and Troubleshooting the DL3100...
  • Page 112 6-10 DL3100 User’s Guide—November 1998...

  • Page 113: Chapter 7, Using The Front Panel Interface

    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.

  • Page 114: Front Panel Keys

    Figure 7-1 shows the DL3100 front panel interface. 16-character flourescent display CONFIGURATION TEST EXIT ENTR STAT 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.

  • Page 115: How To Navigate The Front Panel Interface

    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.

  • Page 116: Editing A Parameter

    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. Press ENTR again to activate edit mode (the Þrst ID character starts to blink). DL3100 User’s Guide—November 1998...

  • Page 117: Preparing For The Initial Configuration

    NODE ID ENTR 3100_ _ _ _ _ _ _ _ _ _ _ _ first character ENTR 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.

  • Page 118: Keeping A Record

    NOTE: The Backup Database function is also found under the Configuration Menu. To open the ConÞguration Menu, use the up or down arrows to move to the Menu and press ENTR. The Backup Database submenu appears. DL3100 User’s Guide—November 1998...

  • Page 119: The Node Config Submenu

    The ConÞguration submenus are shown below. CONFIGURATION ENTR BACKUP DATABASE NODE CONFIG EXIT 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...

  • Page 120: Node Config Menu Parameters

    Node ConÞg Menu. 2. Press ENTR to open the Node ConÞg Menu. The Node ID parameter appears. 3. Press ENTR again to view the ID. Example: 3100DSM_ _ _ _ _ _ _ _ _ DL3100 User’s Guide—November 1998...

  • Page 121: The T3 Net Config Menu

    NETWORK CLOCK EXIT APPL. LINK NRZI IN SERVICE SCRAMBLER DISBAL Figure 7-8 T3 Net Config Menu For more information about these items, refer to ÒConÞguring the T3MBÓ on page 4-16 Chapter 4, ÒConÞguring the DL3100.Ó Using the Front Panel Interface...

  • Page 122: 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 Chapter 4, ÒConÞguring the DL3100Ó for a description of the parameters. Configuring the HSDB Follow these steps to conÞgure the HSDB:...

  • Page 123: Configuring The Hvdb

    Prohibits the data board from recognizing the DTE. For more information regarding these parameters, refer to ÒConÞguring the HSDBÓ on page 4-22 Chapter 4, ÒConÞguring the DL3100.Ó ¥ HSDB hardware revision States the hardware revision. ¥ DTE loss detection Lets you select either None or TA.

  • Page 124: Hvdb Config Menu Parameters

    DTE in response to an RTS. ¥ TD Lets you determine whether the transmit clock is to be received from the DTE leads (SCTE) or from the DL3100 (SCT). ¥ Clock Lets you set the TD clock to normal or inverted.

  • Page 125: Monitoring The Local And Remote Units

    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. Monitoring the Local and Remote Units The parameters in the Display Menu are: DISPLAY ENTR...

  • Page 126: Monitoring The Network Status

    ÒMonitoring Network Alarms and StatusÓ on page 5-5 Chapter 5, ÒMonitoring and Managing the DL3100.Ó Monitoring HSDB/HVDB (1, 2, 3) Status You use the HSDB and HVDB Status Menus to view the status of the existing DTEs.

  • Page 127: Figure 7-10 Network Statistics Menu

    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...

  • Page 128: Clearing Network Statistics

    DTE performance statistics. The illustration below shows the parameters that you can view from the HSDB/HVDB (1, 2, or 3) Statistics Menu, using an HSDB DTE. However, the parameters are the same for HBDV devices. 7-16 DL3100 User’s Guide—November 1998...

  • Page 129: Figure 7-11 Statistics Menu

    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 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.

  • Page 130: Clearing Hsdb/Hvdb Statistics

    Managing the DL3100.Ó Using the Test Menu You can perform network loopbacks and DTE loopbacks on the local DL3100 from the front panel Test Menu. Only the Network Loopback test can be run on the remote unit from the Test Menu.

  • Page 131: Starting And Ending A Test

    TEST ENTR NODE TESTS NETWORK TESTS EXIT HSDB 1 TESTS 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 ¥...

  • Page 132: 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.

  • Page 133: Appendix A, Dl 3100 Technical Speciþcations

    DL 3100 Technical SpeciÞcations 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 44.736 Mbps ± 20 ppm...

  • Page 134: Table A-3 Data Interfaces

    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. Interface Connectors Table A-4 lists the interface connectors for the DL3100.

  • Page 135: Table A-5 Communication Port (Ascii

    Local terminal Enable or Disable XON/XOFF Connector DE-9 socket Protocol ANSI (VT-100) terminals Multi-drop Up to 12 DL3100 systems Remote access Modem Communication Port (SNMP) Table A-6 lists the communication port parameters for SNMP. Table A-6 Communication Port (SNMP NMS) Item...

  • Page 136: Table A-7 Diagnostics

    120 VAC, 0.5 A maximum (110 VAC to 230 VAC, 47 Hz to 63 Hz) 220 VAC, 0.25 A maximum -48 VDC, 1.2 A maximum (-42 VDC to -72 VDC) The DL3100 is protected by a user serviceable external fuse rated at 250 volts, 1.6 ampere. Mechanical Table A-8 lists the mechanical information.

  • Page 137: Table A-8 Mechanical Information

    Regulatory Compliances UL 1950 3rd Edition CAN/CSA - C22.2 No. 950- FCC Part 15 Class A Downloadable Software New features and functionality can be added on line to the DL3100 using the DL3100 built-in communications port. DL 3100 Technical Specifications...

  • Page 138: Equipment Grounding Conductor

    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...

  • Page 139: Figure A-1 Dl3100 Front Panel Leds And Buttons

    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.
  • Page 140 Module failure Network is in an alarm state Loss of signal or out-of-frame conditions on receive T3 signal Far-end DL3100 or other remote equipment is in red alarm AIS received denoting an upstream failure Flashing Bipolar violations detected on the receive T3 signal...

  • Page 141: Table A-13 Cables

    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...
  • Page 142 SNMP Baud Rate 9600 SNMP #Bits and Parity 8 bits No Parity SNMP Stop Bits 2 bits Comm Port and Terminal Configuration Multidrop Enabled Comm Port 9600, 8, no parity, 2 stop bits Comm Port XON/XOFF Enabled A-10 DL3100 User’s Guide—November 1998...
  • Page 143 Configuration Worksheet Use this worksheet to keep a written record of your conÞguration. Unit Configuration Node Number Autogrow Date & Time Front Panel Automatic Backup Network Configuration Device Name Service Scrambler Hardware Rev Framing Line Build Out Applications Data Link Transmit Clock T3MB Alarm Thresholds Major...
  • Page 144 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...
  • Page 145 DL 3100 Connector and Pin Assignments 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...

  • Page 146: Table B-2 50-Pin Hssi Connector Pin Assignments

    From DTE Send Data From DTE Loopback Circuit B From DTE Signal Ground 14-18 39-43 5 ancillary to DTE From DTE Signal Ground 20-23 45-48 5 ancillary from DCE To DTE Test Mode To DTE Signal Ground DL3100 User’s Guide—November 1998...
  • Page 147 Glossary 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.
  • Page 148 Services or interfaces that operate above the T1 data rate, typically at NxT1, T3, SONET, or ATM speeds. BPV (Bi Polar Violation) Occurs when the ones bit is not represented with the opposite signal of the previous ones bit. DL3100 User’s Guide—November 1998...
  • Page 149 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.
  • Page 150 Any serial data communication transmission path, generally between two adjacent nodes or devices and without any intermediate switching nodes. data link layer In the OSI model, the network processing entity that establishes, maintains and releases data link connections between adjacent elements in the network. DL3100 User’s Guide—November 1998...
  • Page 151 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.
  • Page 152 ES (Errored Second) Occurs when a second has one or more OOF events or CRC violations or with one or more BPV or OOF events. DL3100 User’s Guide—November 1998...
  • Page 153 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.
  • Page 154 A diagnostic test in which the transmitted signal is returned to the sending device after passing through a data communications link or network. This allows a technician (or built-in diagnostic circuit) to compare the returned signal with the transmitted signal and get some sense of what's wrong. DL3100 User’s Guide—November 1998...
  • Page 155 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.
  • Page 156 The physical point of access into a computer, network or other electronic device. protocol A formal set of rules governing the format, timing, sequencing and error control of exchanged messages on a data network. G-10 DL3100 User’s Guide—November 1998...
  • Page 157 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.
  • Page 158 SMDS (Switched Multimegabit Data Service) A fast-packet technology based on the connection-less data networking capability described in the IEEE 802.6 speciÞcation. The data format for SMDS is Òcell oriented.Ó SMDS does not support voice. G-12 DL3100 User’s Guide—November 1998...
  • Page 159 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.
  • Page 160 Operating modes include local and remote digital loopback and local and remote analog loopback. V.54 A CCITT standard for loop test devices in modems. It deÞnes local and remote loopbacks. G-14 DL3100 User’s Guide—November 1998...
  • Page 161 ConÞguration and Connections parameter 4-24, conÞguring AC power checking comm port parameters access rights 4-15 connecting the terminal 4-1, accessing DL3100 4-10 Remote Node Terminal 4-9, from front panel adapters from front panel data ports 7-10 9-pin to 25-pin HSDB...
  • Page 162 Parity Lock (Parloc) 5-21 T3 Net ConÞg Menu Parity Main (Parmain) 5-22 Test Menu 7-18 payload data testing types of boards testing DTE V.35 compatible testing HSDB/HVDB NET/DTE testing network front-mounting 3-4, EEPROM backing up the database 5-28 DL3100 User’s Guide—November 1998...
  • Page 163 4-25 management HVDB Main Menu 4-22 SNMP 4-26 HVDB Main Menu parameters 4-22 mechanical speciÞcations monitoring mid-mounting model numbers DL3100 installation modem, connecting a terminal AC power module DC power failure 5-12 missing 5-12 external clock name 4-23 location and equipment...
  • Page 164 Trap IP address 4-27 write community string 4-28 grounding cable software download 5-25 speciÞcations Software Download Menu 5-25 supply 2-2, speciÞcations terminal block on rear panel alarm inputs Warning! alarm parameters power up alarms communication port (ASCII) DL3100 User’s Guide—November 1998...

  • Page 165: Data Interface A

    data interface tests 4-9, diagnostics TD clock parameter 4-26 downloadable software environmental conÞguration parameter 4-9, interface connectors conÞguring T3MB TDL 4-19 mechanical messages 4-19, 4-21 power T3MB TDL ConÞguration Menu parameters 4-20 T3 network port interface terminal statistics block Current HSDB/HVDB Statistics Menu 5-21 strip Current T3MB Statistics Menu...
  • Page 166 WECO cable 3-8, word length write community string 4-28 XMODEM 5-26 DL3100 User’s Guide—November 1998...

Table of Contents