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Paradyne Hotwire 7975 User Manual

Paradyne m/sdsl standalone termination unit user's guide
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HOTWIREt 7975
M/SDSL STANDALONE
TERMINATION UNIT
USER'S GUIDE
Document No. 7975-A2-GB20-40
December 1998

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Summary of Contents for Paradyne Hotwire 7975

  • Page 1 HOTWIREt 7975 M/SDSL STANDALONE TERMINATION UNIT USER’S GUIDE Document No. 7975-A2-GB20-40 December 1998...
  • Page 2 Paradyne Corporation, 8545 126th Ave. N., Largo, FL 33773. Paradyne Corporation makes no representation or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose. Further, Paradyne Corporation reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of Paradyne Corporation to notify any person of such revision or changes.
  • Page 3 Important Safety Instructions 1. Read and follow all warning notices and instructions marked on the product or included in the manual. 2. Input power to this product must be provided by one of the following: (1) a UL Listed/CSA Certified power source with a Class 2 or Limited Power Source (LPS) output for use in North America;...
  • Page 4 The authority to operate this equipment is conditioned by the requirements that no modifications will be made to the equipment unless the changes or modifications are expressly approved by Paradyne Corporation.

  • Page 5: Table Of Contents

    Contents About This Guide H Document Purpose and Intended Audience H Document Summary H Product-Related Documents About the Hotwire 7975 Standalone Termination Unit H M/SDSL Overview H Hotwire 7975 Features H Network Configuration H User Interface Types H Front Panel LED Status Indicators...
  • Page 6 Contents Initial Startup and Configuration H Overview H Connecting Power to the Unit Connecting the Unit to an Optional External DC Power Source H Connecting to the Network H Connecting to a System Terminal H Entering Identity Information H Choosing a Configuration Mode H Configuring the Unit Using the Configuration Menus Configuration Options H Configuring the Unit Using the Internal Switches...
  • Page 7 Testing H Accessing the Test Menu H Running Network Tests Line Loopback Repeater Loopback Send Remote Line Loopback Send and Monitor 511 H Running SYNC Data Port Tests Data Terminal Loopback Data Channel Loopback Send Remote Data Channel Loopback H Device Tests Lamp Test H Ending an Active Test Messages and Troubleshooting...
  • Page 8 Contents Configuration Option Tables H Overview H Network Interface Options Menu H Synchronous Data Port Options Menu H System Options Menu H Communication Port H Management and Communication Options Menu Telnet Sessions Options Communication Protocol Options SNMP Traps Options General SNMP Management Options SNMP NMS Security Options Standards Compliance for SNMP Traps H SNMP Traps...

  • Page 9: About This Guide

    About This Guide Document Purpose and Intended Audience This guide contains information needed to set up, configure, and operate the Hotwire 7975 Multirate/Symmetric Digital Subscriber Line (M/SDSL) Standalone Termination Unit and is intended for installers and operators. Document Summary Section...

  • Page 10: H Product-Related Documents

    Document Number 8775-A2-GB20 8775-A2-GZ40 Contact your sales or service representative to order additional product documentation. Paradyne documents are also available on the World Wide Web at: http://www.paradyne.com Select Service & Support Description Configuration Option Tables. Contains all configuration options, default settings, and possible settings.

  • Page 11: About The Hotwire 7975 Standalone Termination Unit

    About the Hotwire 7975 Standalone Termination Unit M/SDSL Overview Hotwiret Multirate/Symmetrical Digital Subscriber Line (M/SDSL) products maximize customer service areas by varying the DSL line rate. This ensures symmetric DSL connectivity over a wide range of telephone line distances and transmission line qualities.

  • Page 12: H Hotwire 7975 Features

    About the Hotwire 7975 Standalone Termination Unit Hotwire 7975 Features The Hotwire 7975 M/SDSL Standalone Termination Unit is an endpoint for the chassis-mounted Hotwire 8775 M/SDSL Termination Unit housed in the Hotwire 8600 or 8800 Digital Subscriber Line Access Multiplexer (DSLAM).

  • Page 13: H Network Configuration

    Menu-driven async terminal interface screens. See Chapter 2, Asynchronous Terminal Interface Front panel LED status indicators. See Chapter 4, Internal DIP Switches. See Chapter 3, 7975-A2-GB20-40 About the Hotwire 7975 Standalone Termination Unit CO Site V.35 V.35 V.35 8775 Termination Unit...

  • Page 14: Front Panel Led Status Indicators

    Figure 1-2 shows the front panel of the 7975 Standalone Termination Unit. For more information on front panel LEDs, refer to Chapter 4, Figure 1-2. Hotwire 7975 Standalone Termination Unit Front Panel Rear Panel Interface Connections Figure 1-3 shows the physical interfaces of the 7975 Standalone Termination Unit.

  • Page 15: H Snmp Management Capabilities

    SNMP manager and accessed using SNMP by external SNMP managers. Management Information Base (MIB) Support For a detailed description of supported MIBs, visit Paradyne’s web site at http://www.paradyne.com. The following MIBs are supported: MIB II (RFC 1213 and RFC 1573) – Defines the general objects for use with a network management protocol in TCP/IP internets and provides general information about the unit.
  • Page 16 About the Hotwire 7975 Standalone Termination Unit This page intentionally left blank. December 1998 7975-A2-GB20-40...

  • Page 17: Using The Asynchronous Terminal Interface

    Using the Asynchronous Terminal Interface User Interface Access You can communicate with the Hotwire 7975 Standalone Termination Unit with an asynchronous terminal interface (ATI) using one of the following methods: Direct connection through the COM port. Using an external modem through the COM port.

  • Page 18: Initiating An Ati Session

    Using the Asynchronous Terminal Interface Initiating an ATI Session The Main Menu screen is displayed on the screen unless a login ID and password is required or the ATI is already in use. If security is enabled on the 7975 Standalone Termination Unit and you used Telnet to access it directly (you did not log in through the MCC), the system prompts you for a login ID and password.
  • Page 19 Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î main Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î...
  • Page 20 Using the Asynchronous Terminal Interface The following illustration shows the paths to the different ATI screens. System and Performance Test Status Network Error Statistics Network Tests SYNC Data Main Status Test Display Identity Statistics LEDs Network Performance Statistics Device Abort Factory Port Tests Tests...

  • Page 21: Screen Work Areas

    Screen Work Areas There are two user work areas: Screen area – This is the area above the dotted line that provides the menu path, menus, and input fields. The menu path appears as the first line on the screen. In this manual, the menu path is presented as a menu selection sequence with the names of the screens: Main Menu...

  • Page 22: H Navigating The Screens

    Using the Asynchronous Terminal Interface Navigating the Screens You can navigate the screens by: Using keyboard keys Using screen function keys Switching between the two screen work areas Keyboard Keys Use the following keyboard keys to navigate within the screen. Press .

  • Page 23: Screen Function Keys

    The current setting or value appears to the right of the field name. You can enter information into a selected field by: Typing in the first letter(s) of a field value or command. Switching from the screen area to the screen function area below the dotted line and selecting or entering the designated screen function key.

  • Page 24: Switching Between Screen Work Areas

    Using the Asynchronous Terminal Interface Switching Between Screen Work Areas Select Ctrl-a to switch between the two screen work areas to perform all screen functions. " Procedure To access the screen function area below the dotted line: 1. Press Ctrl-a to switch from the screen area to the screen function key area below the dotted line.

  • Page 25: Ending An Ati Session

    Ending an ATI Session Use the Exit function key from any screen to terminate the session. " Procedure To end a session with the asynchronous terminal interface: 1. Press Ctrl-a to go to the screen function key area below the dotted line. 2.
  • Page 26 Using the Asynchronous Terminal Interface This page intentionally left blank. 2-10 December 1998 7975-A2-GB20-40...

  • Page 27: Initial Startup And Configuration

    Initial Startup and Configuration Overview This chapter provides instructions on how to access and configure your unit for the first time. This chapter includes procedures for: Connecting power to the unit. Connecting the unit to the network. Connecting a system terminal. Providing initial unit identity information or changing existing identity information.

  • Page 28: Connecting The Unit To An Optional External Dc Power Source

    Connecting the Unit to an Optional External DC Power Source Use the following procedures only if you want to use the dc power cable. Using the dc power cable, the Hotwire 7975 Standalone Termination Unit is capable of operating on a +24 Vdc power supply.

  • Page 29: H Connecting To The Network

    Connecting to a System Terminal An optional system maintenance terminal may be attached to your Hotwire 7975 Standalone Termination Unit through the modular jack on the rear panel. You may have terminals attached to both endpoints. The system terminal must be a VT100-compatible terminal or a PC running terminal emulation software.

  • Page 30: Entering Identity Information

    Initial Startup and Configuration Entering Identity Information After accessing your unit for the first time, use the Change Identity screen to determine SNMP administrative system information that will be displayed on the Identity screen of the Status branch. To access the Card Identity screen, follow this menu selection sequence: Main Menu main/control/change_identity...

  • Page 31: Choosing A Configuration Mode

    " Procedure To enter Change Identity screen information: 1. Position the cursor in the System Name field. Enter a name unique in your network to identify the SNMP managed node (or unit). The maximum length of System Name is 128 characters. 2.

  • Page 32: Configuring The Unit Using The Internal Switches

    Initial Startup and Configuration Configuring the Unit Using the Internal Switches Use internal Switchpacks S1 and S2 to manually configure the unit. Use Figure 3-1 to locate Switchpacks S1 and S2. HANDLING PRECAUTIONS FOR STATIC-SENSITIVE DEVICES This product is designed to protect sensitive components from damage due to electrostatic discharge (ESD) during normal operation.

  • Page 33: Switchpack Locations

    Initial Startup and Configuration Switchpack Locations Use Figure 3-1 to locate Switchpacks S1 and S2. Switchpack S1 & S2 Front 98-15937 Rear Figure 3-1. Hotwire 7975 Standalone Termination Unit Switchpack Locations 7975-A2-GB20-40 December 1998...

  • Page 34: Switchpack Definitions

    Initial Startup and Configuration Switchpack Definitions Manually change configuration options by moving Switchpack S1 DIP switches on the card. Table 3-1 lists Switchpack S1 definitions. Table 3-1. Switchpack S1 Definitions Switch # . . . 4, 5, 6, 7, 8 Use Table 3-2 to set the Sync Port Payload Rate.
  • Page 35 Table 3-2. Selectable Payload Rates (Switches 4–8 on Switchpack S1) Sync Port Payload Rate 2048 kbps (32 x 64) 1984 kbps (31 x 64) 1920 kbps (30 x 64) 1856 kbps (29 x 64) 1792 kbps (28 x 64) 1728 kbps (27 x 64) 1664 kbps (26 x 64) 1600 kbps (25 x 64) 1536 kbps (24 x 64)
  • Page 36 Initial Startup and Configuration Table 3-3 lists Switchpack S2 definitions. Table 3-3. Switchpack S2 Definitions Switch # . . . 3, 4, 5 6, 7 Use Table 3-4 to set the DSL Line Rate. Defaults are shown in bold. Table 3-4. DSL Line Rate, Switches 3–5 on Switchpack S2 Switch Position NOTE: The 1 Mbps unit DSL line rate is defaulted to 1040 kbps (all OFF)

  • Page 37: Accessing And Displaying Configuration Options

    Accessing and Displaying Configuration Options To display configuration options, you must first load a configuration into the edit area. To load a configuration option set into the configuration edit area, follow this menu selection sequence: Main Menu main/configuration Î –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Ctrl-a to access these functions, ESC for previous menu Make a selection by placing the cursor at your choice and pressing Enter.
  • Page 38 Initial Startup and Configuration Configuration Edit/Display The Configuration Edit/Display screen is displayed when the current, customer, or default configuration is loaded. To access the Configuration Edit/Display screen, follow this menu selection sequence: Main Menu – or – Main Menu main/config/edit Î...

  • Page 39: H Configuring Autorate

    Configuring AutoRate The M/SDSL AutoRate function is controlled from the Network Interface Options screen and allows you to enable or disable AutoRate from a unit configured as an LTU. To access the Network Interface screen, follow this menu selection sequence: Main Menu main/config/network Î...

  • Page 40: Configuration Loader

    Initial Startup and Configuration Table 3-5. Fixed Rate Payload Rates and DSL Line Rates Configuration Loader The Configuration Loader screen allows you to upload configurations to and download configurations from a TFTP server. To access the Configuration Loader screen, follow this menu selection sequence: Main Menu Î...
  • Page 41 " Procedure To upload or download a configuration: 1. Position the cursor in the Image File Name field. Type the name of the file to be downloaded, or the name to be used for the file to be uploaded. The file name may be a regular path name expression of directory names separated by a forward slash (/) ending with the file name.

  • Page 42: Saving Configuration Options

    Initial Startup and Configuration Saving Configuration Options When changes are made to the configuration options through the Configuration Edit/Display branch, the changes must be saved to take effect. Use the Save key or Save Configuration screen. " Procedure To save configuration options changes: 1.

  • Page 43: Download Code

    Download Code The Download Code screen allows you to download firmware from a TFTP server. To access the Download Code screen, follow this menu selection sequence: Main Menu Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î...
  • Page 44 Initial Startup and Configuration This page intentionally left blank. 3-18 December 1998 7975-A2-GB20-40...

  • Page 45: Monitoring The Unit

    Monitoring the Unit What to Monitor This chapter presents information on how to access and monitor Hotwire 7975 Standalone Termination Units on the E1 network. You can monitor 7975 Standalone Termination Unit operations by viewing: System and Test Status screens...
  • Page 46 Monitoring the Unit Viewing System and Test Status To view System and Test Status information, follow this menu selection sequence: Main Menu Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î main/status/system Î...

  • Page 47: Health And Status

    Health and Status The following messages can appear in the first column of the System and Test Status screen. The highest priority Health and Status message also appears on all ATI screens on the bottom right. Table 4-1. Health and Status Messages Message System Operational...

  • Page 48: Self-Test Results

    Monitoring the Unit Table 4-1. Health and Status Messages Message Net Com Link Down Mismatch Rate, Pt 1 Self-Test Results The results of the last power-up or reset self-test appear in the middle column of the System and Test Status screen. Table 4-2.

  • Page 49: Test Status

    Test Status Test Status messages System and Test Status screen. Table 4-3. Test Status Messages Test Status Message No Test Active LLB Test Active, Pt 1 RLB Test Active, Pt 1 DTLB Test Active, Pt 1 DCLB Test Active, Pt 1 A Data Channel Loopback test is active on Port 1. 511 Test Active, Pt 1 Lamp Test Active 7975-A2-GB20-40...

  • Page 50: Viewing Network Error Statistics

    Monitoring the Unit Viewing Network Error Statistics The 7975 Standalone Termination Unit maintains error statistics on the network DSL interface for port 1. Statistics are maintained for up to 96 15-minute intervals (24 hours). To view the Network Error Statistics, follow this menu selection sequence: Main Menu Î...
  • Page 51 Use the virtual function keys to page through the intervals and clear statistics. This Field . . . Current Interval Timer Error Events Counter Current Interval Interval xx Worst Interval Near and Far TOT 7975-A2-GB20-40 Contains . . . The number of seconds which have elapsed in the current 15-minute interval.

  • Page 52: Viewing Network Performance Statistics

    Monitoring the Unit Viewing Network Performance Statistics Network performance statistics allow you to monitor the current status of the network DSL operations. Performance statistics can assist you in determining the duration of specific conditions and provide a historical context for problem detection and analysis.

  • Page 53: H Viewing 7975 Standalone Termination Unit Leds

    This Field . . . Current Interval Timer DSL Line Rate Current Interval Interval xx Viewing 7975 Standalone Termination Unit LEDs The 7975 Standalone Termination Unit LEDs can be viewed on the Display LEDs Status screen. This ATI status screen is available locally and remotely. The 3 groups of LEDs are: General LEDs display the status of the unit Sync Port LEDs provide the status of the DTE interface...

  • Page 54: 7975 Standalone Termination Unit Leds

    Monitoring the Unit 7975 Standalone Termination Unit LEDs The following table contains a description of the LEDs on the 7975 Standalone Termination Unit front panel. Type SYSTEM SYNC Port 4-10 7975 M/SDSL LED is . . . Indicating . . . POWER Green Unit has power.

  • Page 55: Accessing The Test Menu

    Testing Accessing the Test Menu From the Test menu, you can run network tests, data port tests, and a lamp test for the front panel LEDs. To access the Test menu, follow this menu selection sequence: Main Menu main/test Î Î...

  • Page 56: Running Network Tests

    Testing Running Network Tests Network tests require the participation of your network service provider. To access the Network Tests screen, follow this menu selection sequence: Main Menu Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î...

  • Page 57: Line Loopback

    Line Loopback Line Loopback (LLB) loops the received signal on the network interface back to the network without change. Network Interface " Procedure To run a Line Loopback: 1. Position the cursor at the Start command next to Line Loopback on the Network Tests screen.

  • Page 58: Repeater Loopback

    Testing Repeater Loopback Repeater Loopback (RLB) loops the signal being sent from the data port back to the data port and to the network interface. Network Interface " Procedure To run a Repeater Loopback: 1. Position the cursor at the Start command next to Repeater Loopback on the Network Tests screen.

  • Page 59: Send Remote Line Loopback

    Send Remote Line Loopback The LTU initiates the test by sending a line loopback up or down command to the remote unit for 10 seconds. When the remote unit detects the loopback up command, it puts itself in line loopback and lights the front panel test LED. The remote unit remains in loopback until it receives a loopback down command.

  • Page 60: Send And Monitor 511

    Testing Send and Monitor 511 The LTU initiates the test by lighting the Test LED sending a command to the remote unit to send a 511 test pattern. When the remote unit detects the command, it sends a 511 pattern and lights the front panel test LED. Each unit will send and monitor the 511 pattern.

  • Page 61: H Running Sync Data Port Tests

    Running SYNC Data Port Tests To access the SYNC Data Port Tests screen, follow this menu selection sequence: Main Menu Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î main/test/data Î...

  • Page 62: Data Terminal Loopback

    Testing Data Terminal Loopback Data Terminal Loopback (DTLB) loops the user data back to the DTE. This loopback is located as closely as possible to the user data port (DTE) interface. Network Interface " Procedure To run a Data Terminal Loopback: 1.

  • Page 63: Data Channel Loopback

    Data Channel Loopback Data Channel Loopback (DCLB) loops the data from the network interface back to the network. This loopback is located as closely as possible to the user data port (DTE) interface. Network Interface " Procedure To run a Data Channel Loopback: 1.

  • Page 64: Send Remote Data Channel Loopback

    Testing Send Remote Data Channel Loopback The local termination unit can send an Up or Down sequence to request the start or stop of a Data Channel Loopback (DCLB) on a remote unit. Port Interface " Procedure To send a Remote DCLB: 1.

  • Page 65: H Device Tests

    Device Tests The Device Tests branch is used to access the only card-level test, the Lamp Test. To access the Device Tests screen, follow this menu selection sequence: Main Menu main/test/card –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Î –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Ctrl-a to access these functions, ESC for previous menu Lamp Test The Lamp test determines whether all LEDs are lighting and functioning properly.

  • Page 66: Ending An Active Test

    Testing Ending an Active Test Except for the Remote Send Line Loopback and Remote DCLB, a test initiated by the user can be ended by the user. Tests can also be terminated automatically by enabling the Test Timeout option from the System Options Menu. A Test Timeout option is available to automatically terminate a user-initiated Loopback or Pattern test (as opposed to manually terminating a test) after it has been running a specified period of time.

  • Page 67: Messages And Troubleshooting

    Messages and Troubleshooting Overview There are many messages available to assess the status of the device and contribute to problem resolutions. Refer to the following sections: Configuring SNMP Traps Device Messages Troubleshooting 7975-A2-GB20-40 December 1998...

  • Page 68: Configuring Snmp Traps

    Messages and Troubleshooting Configuring SNMP Traps An SNMP trap can be automatically sent out through the EOC or the Management port to an SNMP manager when the 7975 Standalone Termination Unit detects conditions set by the user. These traps enable the SNMP manager to gauge the state of the network.

  • Page 69: Device Messages

    Device Messages Device Messages messages area at the bottom of the ATI screens. Table 6-1. Device Messages (1 of 2) Device Message Access level is Operator. Configuration is read-only. Cannot Save – no Login IDs with Access Administrator Command Complete Invalid Character ( x ) Invalid –...
  • Page 70 Messages and Troubleshooting Table 6-1. Device Messages (2 of 2) Device Message Invalid entry at cursor (1...223, excluding 127) Limit of six Login IDs reached No Security Records to Delete Password Matching Error – Re-enter Password Please Wait Test Active 0.0.0.0 is an invalid IP address What Message Indicates...

  • Page 71: Troubleshooting

    Troubleshooting This 7975 Standalone Termination Unit is designed to provide you with many years of trouble-free service. If a problem occurs, however, refer to Table 6-2 for possible solutions. Table 6-2. Troubleshooting (1 of 2) Symptom Alarm LED is on. Cannot access the unit via the ATI.
  • Page 72 Messages and Troubleshooting Table 6-2. Troubleshooting (2 of 2) Symptom Not receiving data. Power-Up Self-Test fails. Only Alarm LED is on after power-up. Possible Cause Solutions The network or data port Check network and data port cables are not cables. connected (check front Run Loopback tests.

  • Page 73: Security

    Security Overview The 7975 Standalone Termination Unit provides several methods of security by limiting user access to the ATI through option settings. You can: Enable the Telnet Login Required option. Limit the access by setting a Session Access Level option of Operator for the Telnet Session.

  • Page 74: Creating A Login

    Security Access level is also used to control access via Telnet. If the Telnet Session Access Level is set to Administrator (see Table A-5, Login ID with an Operator access level is not permitted access. Creating a Login Logins apply to the terminal directory connected to the communication port or Telnet access directly to the ATI of the 7975 Standalone Termination Unit.
  • Page 75 3. Create the login by entering the following fields. Login IDs and passwords are case-sensitive. On the Login Entry screen, for the . . . Login ID Password Re-enter Password Access Level NOTE: Assign at least one Administrator-level Login ID. Full access is necessary to make configuration option changes and administer logins.

  • Page 76: H Deleting A Login

    Security Deleting a Login " Procedure 1. To delete a login record, follow this menu selection sequence: Main Menu 2. Select PgUp or PgDn and press Enter to page through login pages / records until you find the one to be deleted. 3.

  • Page 77: Limiting Snmp Access Through The Ip Addresses Of The Managers

    Limiting SNMP Access through the IP Addresses of the Managers The unit provides an additional level of security through validation of the IP addresses. The SNMP Management option must be enabled. To control SNMP access with IP addresses, follow this menu selection sequence: Main Menu Refer to Table A-9, limited by:...
  • Page 78 Security If entering yes to prompt . . . Reset COM Port usage Reload Factory Defaults If no (or n) is entered, or if no selection is made within 30 seconds, the unit returns to the condition or operation it was in when the system reset was initiated, with the COM port rate returning to its configured rate.

  • Page 79: Selecting An Ip Addressing Scheme

    IP Addressing Selecting an IP Addressing Scheme The NTU’s network interface IP address is assigned through the peer IP address of the LTU’s Network Interface menu. The NTU obtains the LTU’s IP address and subnet mask when the PPP link is established over the EOC. The LTU IP address and subnet mask are configured from the Communication Protocol Options menu.

  • Page 80: Ip Addressing Example

    IP Addressing IP Addressing Example DSLAM MCC Base Address = 126.35.1.1 MCC Base Subnet Mask = 255.255.0.0 7975 LTU IP Address = 126.35.7.1 LTU Peer IP Address = 126.35.7.2 Peer IP Address Assignments The Peer IP Address refers to the IP address of the unit configured as an NTU.
  • Page 81 Configuration Option Tables Overview The tables in this appendix summarize the configuration options accessed when you select the Configuration option on the Main Menu. The Configuration options are arranged into groups based upon functionality. Select . . . Network SYNC Port System Communication Port...

  • Page 82: Network Interface Options Menu

    Configuration Option Tables Network Interface Options Menu For Network Interface Options, refer to Table A-1. To access the Network Interface Options screen, follow this menu selection sequence: Main Menu Table A-1. Network Interface Options (1 of 2) Margin Threshold Possible Settings: –5db, –4db, –3db, –2db, –1db, 0db, 1db, 2db, 3db, 4db, 5db, 6db, 7db, 8db, 9db, 10db Default Setting: 0db Determines the level, expressed in decibels, at which a signal-to-noise margin condition...
  • Page 83 Configuration Option Tables Table A-1. Network Interface Options (2 of 2) DSL Line Rate Possible Settings: 144, 272, 400, 528, 784, 1040, 1552 (2 Mbps unit only), 2064 (2 Mbps unit only) Default Setting: 144 Specifies the DSL line rate of the unit. This option is only available when the standalone unit is configured as an LTU and AutoRate is disabled (unit is in fixed rate).
  • Page 84 Configuration Option Tables Synchronous Data Port Options Menu For Synchronous Data Port Options, refer to Table A-2. To access the Synchronous Data Port Options screen, follow this menu selection sequence: Main Menu Table A-2. Synchronous Data Port Options (1 of 3) Port Type Possible Settings: E530A, V.35, RS449, X.21 Default Setting: E530A...
  • Page 85 Configuration Option Tables Table A-2. Synchronous Data Port Options (2 of 3) Invert Transmit Clock Possible Settings: Disable, Enable Default Setting: Disable Specifies whether the clock supplied by the 7975 Termination Unit on the TXC interchange circuit DB (CCITT 114) is phase inverted with respect to the Transmitted Data interchange circuit BA (CCITT 103).
  • Page 86 Configuration Option Tables Table A-2. Synchronous Data Port Options (3 of 3) Port (DTE) Initiated Loopbacks Possible Settings: Disable, DTLB, DCLB, Both Default Setting: Disable Allows the initiation and termination of a local Data Terminal Loopback (DTLB) or remote Data Channel Loopback (DCLB) by the DTE connected to this port. (DTLB is equivalent to a V.54 loop 3, and DCLB is equivalent to a V.54 loop 2.) Control of these loopbacks is through the DTE interchange circuits as specified by the V.54 standard.

  • Page 87: System Options Menu

    System Options Menu For System Options, refer to Table A-3. To access the System Options screen, follow this menu selection sequence: Main Menu Table A-3. System Options DSL Mode Possible Settings: LTU, NTU Default Setting: NTU Controls whether the unit is configured as a control unit or tributary unit. LTU –...

  • Page 88: Communication Port

    Configuration Option Tables Communication Port For Communication Port Options, refer to Table A-4. To access the Communication Port screen, follow this menu selection sequence: Main Menu Port Table A-4. Communication Port (1 of 3) Port Use Possible Settings: Terminal, Net Link Default Setting: Terminal Specifies how the communications port is to be used.
  • Page 89 Configuration Option Tables Table A-4. Communication Port (2 of 3) Stop Bits Possible Settings: 1, 1.5, 2 Default Setting: 1 Specifies the number of stop bits for the communication port. 1 – One stop bit. 1.5 – One and one half stop bits. 2 –...
  • Page 90 Configuration Option Tables Table A-4. Communication Port (3 of 3) Disconnect Time (Minutes) Possible Settings: 1 – 60 Default Setting: 5 Number of minutes of inactivity before the session terminates automatically. Timeout is based on no keyboard activity. Disconnect Time (minutes) option appears when Inactivity Timeout is enabled. 1 to 60 –...

  • Page 91: Telnet Sessions Options

    Management and Communication Options Menu The Management and Communication Options Menu includes the following: Telnet Sessions Communication Protocol SNMP Traps General SNMP Management SNMP NMS Security Telnet Sessions Options The Telnet Sessions Options (Table A-5) control whether a Telnet session is allowed through an interconnected IP Network.

  • Page 92: Communication Protocol Options

    Configuration Option Tables Table A-5. Telnet Sessions Options (2 of 2) Session Access Level Possible Settings: Administrator, Operator Default Setting: Administrator The Telnet session access level is interrelated with the access level of the Login ID. Refer to ATI Access Levels Administrator –...
  • Page 93 Configuration Option Tables Table A-6. Communication Protocol Options (2 of 2) Node Subnet Mask Possible Settings: 000.000.000.000 – 255.255.255.255 Default Setting: 000.000.000.000 Specifies the Node Subnet Mask. This option is only available when the standalone unit is configured as an LTU. 000.000.000.000 –...

  • Page 94: Snmp Traps Options

    Configuration Option Tables SNMP Traps Options To access the SNMP Traps Options screen, follow this menu selection sequence: Main Menu Management and Communication Table A-7. SNMP Traps Options (1 of 2) SNMP Traps Possible Settings: Enable, Disable Default Setting: Disable Controls the generation of SNMP trap messages.
  • Page 95 Table A-7. SNMP Traps Options (2 of 2) Enterprise Specific Traps Possible Settings: Enable, Disable Default Setting: Disable Determines if SNMP traps are generated for enterprise-specific events. Enable – SNMP traps are generated for enterpriseSpecific events. NOTE: Disable – No enterprise-specific event traps are sent. Link Traps Possible Settings: Disable, Up, Down, Both Default Setting: Both...

  • Page 96: General Snmp Management Options

    Configuration Option Tables General SNMP Management Options SNMP configuration options allow you to specify the information necessary to support the Termination Unit General SNMP functionality. To access the General SNMP Management Options screen, follow this menu selection sequence: Main Menu Management and Communication Table A-8.

  • Page 97: Snmp Nms Security Options

    SNMP NMS Security Options SNMP configuration options allow you to specify the information necessary to support the Termination Unit SNMP NMS Security. To access the SNMP NMS Security Options screen, follow this menu selection sequence: Main Menu Management and Communication Table A-9.
  • Page 98 Configuration Option Tables This page intentionally left blank. A-18 December 1998 7975-A2-GB20-40...

  • Page 99: Standards Compliance For Snmp Traps

    Standards Compliance for SNMP Traps SNMP Traps This section describes the unit’s compliance with SNMP standards and any special operational features for the SNMP traps supported. The unit supports the following traps: warmStart authenticationFailure linkUp linkDown warmStart SNMP Trap warmStart authenticationFailure SNMP Trap authenticationFailure...

  • Page 100: Linkup And Linkdown

    Standards Compliance for SNMP Traps linkUp and linkDown The link SNMP traps are: linkUp – The unit recognizes that one of the communication interfaces is operational. linkDown – The unit recognizes that one of the communication interfaces is not operational. The network and synchronous port interfaces (physical sublayer) are represented by an entry in the MIB-II interfaces table and supported by the DS1 MIB.

  • Page 101: H Enterprise-Specific Traps

    Enterprise-Specific Traps The enterpriseSpecific trap indicates that an enterprise-specific event has occurred. The Specific-trap field identifies the particular trap that occurred. The following table lists the enterprise-specific traps supported by the unit: SNMP Trap enterpriseSelfTestFail(2) enterpriseDeviceFail(3) enterpriseTestStart(5) enterpriseConfigChange(6) enterpriseFallback AutoRate(13) enterpriseFallback AutoRateclear(113) enterpriseTestStop(105)
  • Page 102 Standards Compliance for SNMP Traps The tests that affect the enterpriseTestStart, enterpriseTestStop, and the variable-bindings are different for each particular interface. Diagnostic tests are only supported on the physical E1 network and user data port interfaces. The specific tests and variable-bindings are described in the following table: Interface DSL Network Synchronous...

  • Page 103: Cables And Pin Assignments

    Cables and Pin Assignments Overview The following sections provide pin assignments: DSL Network Interface Cable COM Port Interface Cable EIA-530A Port Interface Connector EIA-530A to X.21 Interface Cable EIA-530A to RS 449 Interface Cable EIA-530A to V.35 Interface Cable Power Input Connector Optional Power Cable 7975-A2-GB20-40 December 1998...
  • Page 104 Cables and Pin Assignments DSL Network Interface Cable The DSL line interface cable is a 20-foot, 24 AWG solid, 2-twisted-pair cable that is RJ48C-to-RJ48C (Figure C-1). 8-Pin Plug Pin #8 Pin #1 Unused Unused Ring Figure C-1. DSL Network Interface Cable with RJ48C Connector Table C-1.
  • Page 105 Cables and Pin Assignments COM Port Interface Cable The COM port connects to either a PC or to an ASCII terminal or printer for alarms. The COM port-to-PC cable is a 14-foot, 26 AWG, 8-conductor cable with an 8-position modular plug keyed connector and a DB9 socket connector (Figure C-2).
  • Page 106 Cables and Pin Assignments Table C-2. COM Port Connector (J6) Signal Reserved for future use DCE Received Data Signal Ground DCE Transmit Data DCE Data Terminal Ready DCE Carrier Detect DCE Request-to-Send Reserved for future use Direction Pin Number to DTE (Out) to DTE (Out) —...
  • Page 107 EIA-530A Port Interface Connector The EIA-530A Port interface connector information is shown in Table C-3. Table C-3. EIA-530A Port Interface Connector Signal Shield Signal Common Signal Common Transmitted Data Received Data Request-to-Send Clear-to-Send Received Line Signal Detector DCE Ready DTE Ready Transmit Signal Element Timing (DTE Source) Transmit Signal Element Timing...
  • Page 108 Cables and Pin Assignments EIA-530A-to-X.21 Interface Cable The EIA-530A-to-X.21 adapter cable (Figure C-3) provides the X.21 interface shown in Table C-3. SIGNAL TD-A TD-B RD-A RD-B RXC-A RXC-B RTS-A RTS-B RLSD-A RLSD-B SIG. COMMON TT-A TT-B Figure C-3. EIA-530A-to-X.21 (Cable Feature Number 7900-F1-505) DB25 PLUG December 1998...
  • Page 109 Table C-3. X.21 Cable Interface Signal Signal Common Transmitted Data Received Data Request-to-Send Data Channel Received Line Signal Detector Transmit Signal Element Timing (DTE Source) Receiver Signal Element Timing (DCE Source) 7975-A2-GB20-40 Cables and Pin Assignments CCITT Number Direction To DSU/CSU From DSU/CSU To DSU/CSU From DSU/CSU...
  • Page 110 Cables and Pin Assignments EIA-530A-to-RS449 Cable Interface The EIA-530A-to-RS449 adapter cable (Figure C-4) provides the RS449 interface shown in Table C-4. SIGNAL SHIELD TD-A TD-B RD-A RD-B TXC-A TXC-B RXC-A RXC-B RTS-A RTS-B CTS-A CTS-B RLSD-A RLSD-B SIG. COMMON RCV. COMMON TT-A TT-B SIG.
  • Page 111 Table C-4. RS449 Cable Interface Signal Shield Signal Ground Receive Ground Send Common Send Data Receive Data Request-to-Send Clear-to-Send Receiver Ready Data Mode Terminal Ready Terminal Timing Send Timing Receive Timing Local Loopback Remote Loopback Test Mode 7975-A2-GB20-40 Cables and Pin Assignments Circuit CCITT Mnemonic...
  • Page 112 Cables and Pin Assignments EIA-530A-to-V.35 Cable Interface The EIA-530A-to-V.35 adapter cable shown in Pin 1 SIGNAL SHIELD TD-A TD-B RD-A RD-B TXC-A TXC-B RXC-A RXC-B RLSD SIG. COMMON TT-A TT-B SIG. COMMON Figure C-5. EIA-530A-to-V.35 Cable Pinouts (Feature Number 7900-F1-503) C-10 (Figure Table...
  • Page 113 Table C-5. V.35 Cable Interface Signal Shield Signal Common Transmitted Data Received Data Request to Send Clear to Send Data Channel Received Line Signal Detector Data Set Ready Data Terminal Ready Transmit Signal Element Timing (DTE Source) Transmit Signal Element Timing (DCE Source) Receiver Signal Element Timing (DCE Source)
  • Page 114 Cables and Pin Assignments Power Input Connector The required input power connector leads are shown in Table C-6. Table C-6. DC Power Connector Signal +24 Vdc +24 Vdc Return Chassis Ground Optional Power Cable The optional power cable is a 14.5-foot, 18 AWG stranded cable. The connector is terminated at one end with a 6-position Molex 39-01-2060 connector.
  • Page 115 Technical Specifications Specifications Size Weight Approvals Safety Certifications Power Cables and Cable Guide Physical Environment Operating temperature Storage temperature Relative humidity Shock and vibration * Technical specifications are subject to change without notice. 7975-A2-GB20-40 Criteria* Width 7.25 inches (18.4 cm) Height 1.5 inches (3.8 cm) Length 9.4 inch (24.9 cm)
  • Page 116 Technical Specifications This page intentionally left blank. December 1998 7975-A2-GB20-40...
  • Page 117 Glossary Alternate Mark Inversion. A line coding technique used to accommodate the ones density requirements of E1 or T1 lines. Asynchronous Terminal Interface. A menu-driven, VT100-compatible system for configuring and managing the termination unit. Bipolar Violation. In a bipolar signal, a one (mark, pulse) which has the same polarity as its predecessor.
  • Page 118 Glossary Data Terminal Ready. A signal from the DTE to the modem, sent via Pin 20 of the EIA-232 interface (V.24 circuit 108/1, /2), that indicates the DTE is turned ON and connected to the modem. Excessive Error Rate. An error rate that is greater than the threshold that has been configured in the device.
  • Page 119 Light Emitting Diode. A light or status indicator that glows in response to the presence of a certain condition (e.g., an alarm). Line Loopback. A test in which the received signal on the network interface is looped back to the network without change. loopback loopback A diagnostic procedure that sends a test message back to its origination point.
  • Page 120 Glossary Telnet Virtual terminal protocol in the Internet suite of protocols. Allows the user of one host computer to log into a remote host computer and interact as a normal terminal user for that host. TFTP Trivial File Transfer application. A standard TCP/IP protocol that allows simple file transfer to and from a remote system without directory or file listing.
  • Page 121 Index Abort All Tests, 5-1 ac transformer, connecting, 3-2 access SNMP, 1-3, 7-4 to async terminal interface, 2-3 access level effective, 7-1 functions available for, 7-1 access to user interface, resetting/restoring, 7-5 Action on Network LOS Alarm, A-5 administer login, 7-2 Alarm, LED, 4-10 ASCII, printable characters, 3-4 ATI (Asynchronous Terminal Interface)
  • Page 122 Index data channel loopback (DCLB), 5-9, A-6 data port loopbacks, DTE initiated, A-6 data port tests, 5-7 data terminal loopback (DTLB), 5-8, A-6 dc power option, 3-2 default configuration area, 3-5 delete, Login ID, 7-4 device, messages, 6-3– 6-4 dimensions, D-1 Disconnect Time, for Telnet session, A-10, A-12 documents, related, vi DOS, TFTP server on, 3-15...
  • Page 123 main menu, 2-2, A-1 Management and Communication Options, A-11 management port access, 7-1 settings, 2-1 Margin Threshold, A-2 Memory Fail, status, 4-4 messages alarm and device, 6-1 health and status, 4-3 line 24, 6-3 self-test results, 4-4 test status, 4-5 general support, 1-5 support, 1-5 monitoring, 4-1...
  • Page 124 Index SNMP Management Configuration, A-16 SNMP management general, 1-5 limiting access, 7-4 SNMP NMS Security Options, A-16, A-17 SNMP Trap Options, NMS n IP Address, A-17 start-up, ATI, 2-1 status, test messages, 4-5 subnet, IP addresses, 8-1 Switchpack definitions, 3-8 Switchpack locations, 3-7 Switchpack S1 Definitions, 3-8 Switchpack S2 Definitions, 3-10...

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