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Paradyne HotWire 7915 User Manual

Standalone e1 sdsl termination unit
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AREA CODE CHANGE
Please note that the area code for
Paradyne Corporation in Largo, Florida
has changed from 813 to 727.
For any Paradyne telephone number that
appears in this manual with an 813 area
code, dial 727 instead.

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  • Page 1 AREA CODE CHANGE Please note that the area code for Paradyne Corporation in Largo, Florida has changed from 813 to 727. For any Paradyne telephone number that appears in this manual with an 813 area code, dial 727 instead.
  • Page 2 MODEL 7915 STANDALONE E1 SDSL TERMINATION UNIT USER’S GUIDE Document No. 7915-A2-GB20-20 September 1997...
  • Page 3 Via the Internet: Visit the Paradyne World Wide Web site at http://www.paradyne.com Via Telephone: Call our automated call system to receive current information via fax or to speak with a company representative. — Within the U.S.A., call 1-800-870-2221 — International, call 813-530-2340 Printed on recycled paper September 1997 7915-A2-GB20-20...

  • Page 4: Important Safety Instructions

    Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of electric shock from lightning. — Do not use the telephone to report a gas leak in the vicinity of the leak. 7915-A2-GB20-20 Important Regulatory Information September 1997...
  • Page 5 To Users of Digital Apparatus in Canada: This Class A digital apparatus meets all requirements of the Canadian interference-causing equipment regulations. Cet appareil numérique de la classe A respecte toutes les exigences du règlement sur le matérial brouilleur du Canada. September 1997 7915-A2-GB20-20...

  • Page 6: Table Of Contents

    Contents About This Guide Document Purpose and Intended Audience Document Summary Product-Related Documents About HotWire Model 7915 Standalone Termination Units HotWire 7915 Models and Features Typical Configurations User Interface Types Installing the Unit Overview Package Checklist Connecting to the Network and Application Equipment...
  • Page 7 ............7915-A2-GB20-20...
  • Page 8 Index 7915-A2-GB20-20 ........

  • Page 9: About This Guide

    Document Purpose and Intended Audience This guide contains information needed to set up, configure, and operate HotWire Model 7915-A1 E1 SDSL termination units. It is designed for central office and/or special service installation technicians or network engineers who have an...

  • Page 10: Product-Related Documents

    HotWire Model 7900 Nest and Options Installation Guide HotWire Models 7924 and 7925 T1 & E1 HDSL Nest Cards Termination Units User’s Guide on page A at the beginning of this User’s Guide. September 1997 Warranty, Sales, and Service 7915-A2-GB20-20...

  • Page 11: About Hotwire Model 7915 Standalone Termination Units

    Tolerates bridged tap Provides local and remote alarm surveillance and performance monitoring HotWire 7915 may be ordered either as a standalone unit (7915-A1-xxx) or as a nest-mounted card (7915-B1-xxx) that fits in a HotWire 7900 nest. This guide describes the installation and maintenance procedures for the standalone version, Model 7915-A1-xxx.
  • Page 12 Chapter:ChapName There are several versions of the Model 7915-A1, each supporting a different interface (G.703 75-Ohm, G.703 120-Ohm, or V.35/V.11) and power supply (220 Vac, 120 Vac, or – 48 Vdc): Model Number 7915-A1-201 7915-A1-202 7915-A1-211 7915-A1-301 7915-A1-302 7915-A1-311 7915-A1-501...

  • Page 13: Typical Configurations

    One unit is configured as a central site or central office unit (CO) and the other is the customer premises (remote) unit (CP). Each HotWire Model 7915 standalone unit is configured at the factory to operate at the CP side of an E1 SDSL connection. However, you can easily reconfigure a...
  • Page 14 About HotWire Model 7915 Standalone Termination Units HotWire Model 7915 standalone units are also ideal for delivering E1 services from a central site to the customer premises over long loop distances without repeaters. Figure 1-2 HotWire Model 7915 nest cards. Each nest card terminates a single subscriber line in the CO.

  • Page 15: User Interface Types

    Cellular network providers must lease large numbers of E1 circuits in order to connect remote cell sites to mobile telephone switching offices (MTSOs). HotWire Model 7915 products provide an alternative to standard repeatered E1 services. Figure 1-3. Cellular Network Access...

  • Page 16: Installing The Unit

    Overview This chapter describes the procedure for installing a single standalone termination unit using a 120 Vac or 230 Vac power supply (Model 7915-A1-20x or 7915-A1-30x). If you have multiple standalone units at the same location, you may want to consider installing the units in a HotWire Model 7900 10-Slot Standalone Shelf.

  • Page 17: Connecting To The Network And Application Equipment

    Installing the Unit Connecting to the Network and Application Equipment G.703-Compatible (75-Ohm Interface) HotWire 7915 – Rear Panel G.703-Compatible (120-Ohm Interface) HotWire 7915 – Rear Panel V.35/V.11-Compatible HotWire 7915 – Rear Panel 48 VDC 48 VDC September 1997 E1/2048KB/S 97-15529...

  • Page 18: Connecting Power To The Unit

    Plug the power transformer into an available 115 or 230 Vac power outlet, running the power lead to the unit housing. Connect the power lead into the – 48 Vdc plug on the rear panel. 7915-A2-GB20-20 DB25-to-V.35 Adapter Cable Pin in Appendix B for pin assignments), depending on whether you on page A at the beginning of this User’s Guide.

  • Page 19: Using Terminal And Switchpack Modes

    Switchpack Mode. Connecting to a System Terminal An optional system maintenance terminal may be attached to your Model 7915 standalone termination unit through the modular jack on the front panel. This terminal is required if you want to use Terminal Mode (described above). You may have terminals attached to both endpoints.

  • Page 20: Switching Between Terminal And Switchpack Modes

    5. Power up the board to reset and enable the new configuration. Cable Pin Assignments Chapter 5 (for V.35/V.11-compatible units) for Switchpacks and Jumpers September 1997 , for the Chapters 4 for the Chapter 4 (for , to locate switchpack S4 on your Switchpacks and 7915-A2-GB20-20...

  • Page 21: Customizing G.703-Compatible Units

    Units Accessing Configuration Options This chapter provides instructions on how to change configuration options for HotWire 7915 standalone units that are G.703-compatible. similar information for V.35/V.11-compatible units. Configuration option settings determine how the unit operates. You can change a unit’s configuration options by: Selecting the Board Configuration branch of the Main Menu while in Terminal Mode.

  • Page 22: Making Changes From The Terminal Interface

    CP unit (STU-R) and on a CP unit it is used to monitor the CO (STU-C). This guide depicts the system terminal menus as they appear from a CP unit (unless otherwise noted). This is the default configuration for Model 7915 standalone units. Making Changes from the Terminal Interface The Board Configuration menu displays the current board software and hardware settings.
  • Page 23 Switchpack Definitions, option 4 on the Config menu, displays the switchpack settings to use when changing configuration changes manually. Refer to Displaying Switchpack Definitions Possible values for each option are listed in 7915-A2-GB20-20 Table 4-1 for more information.) The menu appears as – CO –...
  • Page 24 3 at the Config prompt. The system prompts you to enter a time slot number. The choices in the prompt are based on the payload rate set at the V.35/V.11-compatible CP unit. Worksheets , for help in selecting the appropriate September 1997 7915-A2-GB20-20...

  • Page 25: Making Changes In Switchpack Mode

    (DS0). Make sure that there are enough subsequent time slots to accommodate the V.35/V.11 payload rate (refer to the Maximum Payload Rate column in your starting time slot selection, as some time slots may already be in use. 7915-A2-GB20-20 on page 3-2. Switchpacks and Jumpers Switchpacks and Jumpers Table C-1 on page C-2.

  • Page 26: Displaying Switchpack Definitions

    To display the definition of each position in switchpack S4, enter 4 at the Config prompt. Switchpack definitions are also listed in Appendix C, Jumpers Config Switch pack definition: – CO/CP – HDB3 3–7 – Starting Time Slot – Configuration Config OFF=CP, ON=CO OFF/ON 1–31, 0=Unframed OFF=Terminal, ON=Switchpack September 1997 Switchpacks and 7915-A2-GB20-20...
  • Page 27 Units Accessing Configuration Options This chapter provides instructions on how to change configuration options for HotWire 7915 standalone models that are V.35/V.11-compatible. provides similar information for G.703-compatible units. Configuration option settings determine how the unit operates. You can change a unit’s configuration options by:...
  • Page 28 (STU-C). This guide depicts the system terminal menus as they appear from a CP unit. This is the default configuration for Model 7915 standalone units. Making Changes from the Terminal Interface The Board Configuration menu displays how the board is currently configured.
  • Page 29 The SDSL rate type, firmware revision numbers, and serial number displayed on the Board Configuration screen cannot be changed. Refer to page 5-5 for information on using the Possible values each configuration option are listed in 7915-A2-GB20-20 Customizing V.35/V.11-Compatible Units – CO SDSL Interface –...
  • Page 30 27 – 1728 Kbps (27 x 64) 28 – 1792 Kbps (28 x 64) 29 – 1856 Kbps (29 x 64) 30 – 1920 Kbps (30 x 64) 31 – 1984 Kbps (31 x 64) 32 – 2048 Kbps (32 x 64) 7915-A2-GB20-20...

  • Page 31: Displaying Switchpack Definitions

    To display the definition of each position in switchpack S4, enter 4 at the Config prompt. Switchpack definitions are also listed in Appendix C, Jumpers Config Switch pack S4 definition: 3-7 – << Press a key to continue!>> 7915-A2-GB20-20 Customizing V.35/V.11-Compatible Units Switching Between Terminal and Switchpack Modes – CO/CP OFF=CP, ON=CO –...
  • Page 32 01010 1728 (27x64) 01011 1792 (28x64) 01100 1856 (29x64) 01101 1920 (30x64) 01110 1984 (31x64) 01111 2048 (32x64) September 1997 SWPK SWITCHES 7,6,5,4,3 10000 10001 10010 10011 10100 10101 10110 10111 11000 11001 11010 11011 11100 11101 11110 11111 7915-A2-GB20-20...

  • Page 33: Monitoring The Unit

    Board Status option from the Main Menu Performance Monitor option from the Main Menu Board Status and Performance Monitor options from the STUC (or STUR) Menu (for displaying information about the unit on the other end of the connection) Front Panel LEDs 7915-A2-GB20-20 September 1997...

  • Page 34: Board Status

    SDSL Status displays whether the loop is up or down. Signal to Noise (S/N) ratio does not display if the loop is down. Network is UP LOOP is UP 44.0 dB ACTIVE ACTIVE LOOP is UP 43.5 dB. September 1997 7915-A2-GB20-20...

  • Page 35: Performance Statistics

    Select from the above list to display statistics for a specified time period. NOTE: There is no verification presented before statistics are deleted. Be sure you want to clear all statistics before pressing 7. 7915-A2-GB20-20 – 1 minute stats. – 15 minute stats. – 1 hour stats.

  • Page 36: Remote Unit Information

    2) Performance Monitor 3) Board Configuration ?) Redisplay this menu Q) Quit STUC Command E1 Errors: – CV – – FAS – E1 Errors: – CV – – FAS – Glossary for definitions of the types of errors reported. September 1997 7915-A2-GB20-20...

  • Page 37: Front Panel Leds

    FAIL Loop LED lights or blinks during power up, then goes out when the loop has been established. 7915-A2-GB20-20 Meaning The local G.703 interface has a loss of signal. The remote G.703 interface has a loss of signal. The unit is in loopback. See Chapter 7, Power is applied to the unit.

  • Page 38: Testing

    In a remote loopback, the data is passed on to the remote (far-end) unit and then reflected back. Figures 7-1 different configurations. The bold arrows indicate the direction of data flow. 7915-A2-GB20-20 Monitoring the Unit through illustrate how local and remote loopbacks operate in...

  • Page 39: Local Loopbacks

    Figure 7-2. Local Loopback Initiated by the CP Unit E1 HDSL E1 HDSL 7900 7900 Loop Bk LED lights Terminal E1 HDSL E1 HDSL 7900 7900 September 1997 Diagnostic Equipment 7900 7900 97-15249-01 Diagnostic Equipment 7900 7900 Loop Bk LED lights 97-15518 Terminal 7915-A2-GB20-20...

  • Page 40: Remote Loopbacks

    The Loop Bk LED on the local (initiating) unit does not light. Diagnostic Equipment Figure 7-3. Remote Loopback Initiated by the CO Unit Diagnostic Equipment Figure 7-4. Remote Loopback Initiated by the CP Unit 7915-A2-GB20-20 E1 HDSL E1 HDSL 7900 7900 Loop Bk LED lights...

  • Page 41: Starting And Ending Loopbacks

    Reset will bring the loop down. Are you sure? (y/n) Command If “y” is selected, the Main Menu redisplays, the loop goes down, and the Fail (reset) LED lights. Pressing any key other than “y” is interpreted as an “n”. September 1997 7915-A2-GB20-20...

  • Page 42: Worksheets

    (G.703-compatible or V.35/V.11-compatible) on either end of the SDSL connection. There are three combinations of the two types of units: G.703-compatible units on both ends V.35/V.11-compatible CP unit, G.703-compatible CO unit V.35/V.11-compatible units on both ends 7915-A2-GB20-20 September 1997...

  • Page 43: G.703-To-G.703 Configuration

    Appendix Configuration Option Card Type E1 Line Code Framing G.703-Compatible Unit (Customer Premises) CP (default) HDB3 or AMI Framed or Unframed September 1997 G.703-Compatible Unit (Central Site) Must be same as CP side Must be same as CP side 7915-A2-GB20-20...

  • Page 44: G.703-To-V.35/V.11 Configuration

    Terminal Mode factory defaults are in bold (for Switchpack mode defaults, see Appendix Configuration Option Card Type Payload Rate Timing 7915-A2-GB20-20 V.35/V.11-Compatible Unit (Customer Premises) 1 – 32 (64 – 2048 Kbps) Loop (not configurable) V.35/V.11-Compatible Unit (Customer Premises) 1 – 32 (64 – 2048 Kbps)

  • Page 45: G.703-Compatible Units Configuration Worksheet

    31 – 31 x 64 (1984 kbps) 16 – 16 x 64 (1024 kbps) 32 – 32 x 64 (2048 kbps) Loop (for CP Units) Internal or External (for CO units) September 1997 Terminal Mode Defaults in Bold Terminal Mode Defaults in Bold 7915-A2-GB20-20...

  • Page 46: Terminal Connection Cable

    This section defines the pin assignments for the terminal cable from the front panel modular jack to your PC’s COM port. If your PC’s COM port requires a 9-pin D-shell connector, the cable must use the following pin assignments. Modular 7915-A2-GB20-20 9-Pin D-Shell Pin September 1997 97-15268-02...

  • Page 47: Sdsl Connection Cable Pin Assignments

    The SDSL modular connector that plugs into the rear panel of the unit has the following pin assignments. 3 – 8 NOTE: Pin 1 is on the left when viewing the jack from its inserted position. 25-Pin D-Shell Pin Signal Loop Tip Loop Ring unused September 1997 97-15442-01 7915-A2-GB20-20...

  • Page 48: Db25-To-V.35 Adapter Cable Pin Assignments

    DB25-to-V.35 adapter cable with the following pin assignments. SHIELD TD-A TD-B RD-A RD-B TXC-A TXC-B RXC-A RXC-B RLSD SIG. COMMON TT-A TT-B 7915-A2-GB20-20 DB25 PLUG September 1997 Cable Pin Assignments MS34 V.35 SIGNAL SOCKET SHIELD TD-A TD-B RD-A RD-B TXC-A...

  • Page 49: G.703-Compatible Units

    Switchpacks and Jumpers G.703-Compatible Units VT100 Terminal DSL Line Jack G.703-Compatible Unit Switchpack Location 7915-A2-GB20-20 Modular Jack Switchpack S4 Position 3 – 7 * Default in bold September 1997 Settings* OFF = CP ON = CO OFF = AMI line encoding...
  • Page 50 896 Kbps (14 x 64) 832 Kbps (13 x 64) 768 Kbps (12 x 64) 704 Kbps (11 x 64) 640 Kbps (10 x 64) 576 Kbps (9 x 64) 512 Kbps (8 x 64) 448 Kbps (7 x 64) 7915-A2-GB20-20...
  • Page 51 Table C-1. Starting Time Slot Switches 3 – 7 on Switchpack S4 (2 of 2) Starting Starting Time Slot Time Slot 7915-A2-GB20-20 Switch Position September 1997 Switchpacks and Jumpers Maximum Payload Rate Maximum Payload Rate Starting at Time Slot Starting at Time Slot...

  • Page 52: V.35/V.11-Compatible Units

    September 1997 Settings* OFF = CP ON = CO For CO units: OFF = Internal timing ON = External timing For CP units: unused, leave OFF Payload Rate (see table) OFF = Terminal Mode ON = Switchpack Mode 97-15525 7915-A2-GB20-20...
  • Page 53 26 x 64 (1664 kbps) 27 x 64 (1728 kbps) 28 x 64 (1792 kbps) 29 x 64 (1856 kbps) 30 x 64 (1920 kbps) 31 x 64 (1984 kbps) 32 x 64 (2048 kbps) 7915-A2-GB20-20 Switch Position September 1997 Switchpacks and Jumpers...
  • Page 54 1988 by a decision of the CEPT (Conference of European Postal and Telecommunications Administrations). factory defaults A predetermined set of configuration options for general operation. Frame Alignment Signal. A loss of signal (LOS) error detection. 7915-A2-GB20-20 September 1997 GL-1...
  • Page 55 Transmit Data. An EIA-lead standard for V.24 circuit CT 103; an input signal (DTE-to-DCE). V.11 ITU-T standard for a high-speed, 34-pin, DCE/DTE interface. Similar to V.35, but used for longer cable distances where V.35 is not appropriate. V.35 ITU-T standard for a high-speed, 34-pin, DCE/DTE interface. GL-2 September 1997 7915-A2-GB20-20...
  • Page 56 Index Numbers 7915 features, 1-1 model numbers, 1-2 models, 1-1 power supplies, 1-2 AMI line encoding, 4-4 applications campus, 1-3 cellular network, 1-5 central office, 1-4 board status, 6-2 for remote unit, 6-4 cable connection, 2-2 ferrite bead, 2-2 pin assignments, B-1 card type G.703-compatible units, 4-4...
  • Page 57 3-1 terminal mode, 3-2 testing, 7-1 time slot selection, 4-5 user interface, 1-5, 3-1 V.11 mode, 5-5 V.35 to G.703 configuration, A-3 V.35 to V.35 configuration, A-3 VT100 interface, 3-1 warranty telephone number, A worksheets, A-1 September 1997 7915-A2-GB20-20...

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