PairGain HLU-431 Quick Installation Manual
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PairGain HLU-431 Quick Installation Manual

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NSTALLATION
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Model
List Number
Part Number
HLU-431
1F
150-1504-16
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ECHNOLOGIES
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NGINEERING
ERVICES
™350-431-116-01/¨
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350-431-116-01
ECTION

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Summary of Contents for PairGain HLU-431

  • Page 1 UICK NSTALLATION UIDE Model List Number Part Number HLU-431 150-1504-16 ECHNOLOGIES NGINEERING ERVICES ™350-431-116-01/¨ 350-431-116-01 ECTION...
  • Page 2 ©1999 PairGain Technologies, Inc. PairGain and HiGain are registered trademarks of PairGain Technologies, Inc. Information contained in this document is company private to PairGain Technologies, Inc., and shall not be modified, used, copied, reproduced or disclosed in whole or in part without the written consent of PairGain.
  • Page 3 • Check the packing list to ensure complete and accurate shipment of each listed item. If the shipment is incomplete or inaccurate, contact PairGain as described in the “Certification and Warranty” on page 25. If you must store the equipment for a prolonged period, store the equipment in its original container.

  • Page 4: Table Of Contents

    Positron High-voltage Isolation Applications ......17 Appendix A: Specifications ________________________________19 Appendix B: Service and Support __________________________20 Technical Support..............20 BBS ................20 World Wide Web .............21 Returns ..............21 Appendix C: Abbreviations _______________________________23 Certification and Warranty __________________Inside back cover January 8, 1999 HLU-431 List 1F...

  • Page 5: Product Overview

    For applications without doublers, the HLU-431 List 1F is directly connected to the HRU by the two cable pairs. For doubler applications, one doubler may be used in the HDSL loops between the HLU-431 List 1F and the HRU.

  • Page 6: Product Description

    HRE-454, Four-slot outdoor • HUE-443, three-slot indoor RODUCT ESCRIPTION Figure 1 shows the front panel of the HLU-431 List 1F, and Table 2 on page 3 describes the various front panel functions. Table 2 on page 3 describes the LED functions.
  • Page 7 HDSL Acquisition. Flashing Red Minor Alarm. FUSE ALRM. Yellow Self Test in progress or an HLU List loopback in effect (CREM) or (NLOC). Flashing Yellow The HLU List is in an ARMED (pre-loopback) state. HLU-431 List 1F January 8, 1999...
  • Page 8 Product Overview 350-431-116-01, Revision 01 Figure 2 shows the card-edge connector pinouts. Figure 2. Card-edge Connector Pinouts January 8, 1999 HLU-431 List 1F...

  • Page 9: Installation

    Push the unit in until it touches the backplane card-edge connector and the retaining latch on the front panel opens. Place your thumbs on the HLU-431 front panel and push the card into the card-edge connector until the unit is within the card guides and properly seated.

  • Page 10: Hdsl Line Voltage Operation

    For both doubler and non-doubler applications, this setting also allows the HLU-431 List 1F to power single doubler circuits without exceeding 140V line voltage. This is required when, for example, the HLU-431 List 1F is used with Positron HDSL dc/ac convertor circuits to provide high voltage isolation between the cable pairs and the HLU-431 List 1F.

  • Page 11: Default Settings

    HLU-431 through the Craft port: Configure the maintenance terminal to the following communication settings: • 1200 to 9600 baud (9600 baud is recommended) • Parity: NONE • 8 data bits • 1 stop bit HLU-431 List 1F January 8, 1999...
  • Page 12 This activates the new choices and returns control to the Main Menu screen. The following user options cannot be set from the front panel buttons: Circuit ID, DS0 Blocking, and Margin Alarm Threshold. January 8, 1999 HLU-431 List 1F...

  • Page 13: System Options Settings

    HLU processor. The DS0 blocking option can only be set through the RS-232 maintenance port with a terminal. The four-character HLU-431 List 1F front panel LED readout for BLK indicates at least one channel is blocked. No channels are blocked.
  • Page 14 Places both the HLU and HRU into their AMI modes. AUTO The HLU and HRU independently monitor their incoming T1 bit streams for the B8ZS pattern. If either unit detects this pattern, it enters its B8ZS mode. January 8, 1999 HLU-431 List 1F...
  • Page 15 Confirms that all operating modes (listed in this table) are to be updated to their current selections. Prevents the most recently selected operating mode selections from being updated. They remain as they were before the system options settings mode was entered. (a) Factory default settings. HLU-431 List 1F January 8, 1999...

  • Page 16: Testing

    OUBLER PPLICATIONS The low voltage limit (140V) of the HLU-431 HDSL power supply limits its doubler applications to just one doubler. It can power one doubler and one remote unit if the doublers are one of the following: HDU-404, HDU-407 or HDU-409.

  • Page 17: Alarms

    (-) simplex dc voltage, and Loop 2 is specified to carry the (+) simplex dc voltage. Alarm Cut-off A minor alarm occurred and was retired to an ACO condition after pressing the SEL button on the HLU front panel. HLU-431 List 1F January 8, 1999...

  • Page 18: Loopbacks

    The loopback at doubler 1 toward the CBA Loopback initiated by in-band codes, or the maintenance terminal. CDU1 Customer Doubler 1 The loopback at doubler 1 toward CI initiated by Loopback in-band codes or the maintenance terminal. January 8, 1999 HLU-431 List 1F...
  • Page 19 350-431-116-01, Revision 01 Testing Figure 4. Loopback Functions HLU-431 List 1F January 8, 1999...

  • Page 20: Four-Character Diagnostic Messages

    HRU that is drawing the correct amount of power over good cable pairs but cannot communicate with the HLU. PWR FEED Power Feed Open Indicates an open circuit in the Tip and Ring of OPEN either HDSL pair in Span 1. January 8, 1999 HLU-431 List 1F...

  • Page 21: Positron High-Voltage Isolation Applications

    VOLTAGE SOLATION PPLICATIONS Since the HLU-431 List 1F restricts its output voltage to 140V for all applications including doublers, it can be used with Positron High Voltage Protection (HVP) equipment. This equipment consists of High Voltage HDSL isolation transformers and dc-to-dc converters located in external High Voltage Interface (HVI) cabinets.
  • Page 22 The maximum input voltage that the dc-to-dc converter can tolerate is 150V which makes it compatible with the HLU-431 List 1F whose maximum output voltage is 140V. For more information on the HDSL-compatible HVP equipment, contact Positron at 303-688-5800.

  • Page 23: Appendix A: Specifications

    Maximum Heat Dissipation 6W (without doubler); 7W (with doubler) Mounting 400 mechanics Dimensions Height: 5.6 inches (14 cm) Width: 1.4 inches(3.5 cm) Depth: 5.6 inches (14 cm) Weight: 1 lb. 2 oz. (.51 kg) HLU-431 List 1F January 8, 1999...

  • Page 24: Appendix B: Service And Support

    This process normally results in a callback within 30 minutes of initiating the request. In addition, PairGain maintains an on-line Bulletin Board System (BBS) for obtaining current information on PairGain products, product troubleshooting tips and aids, helpful utilities, and for posting requests or questions. This system is available 24-hours a day by calling (714) 730-2800.

  • Page 25: World Wide Web

    PairGain product and company information can be found at http://www.pairgain.com using any Web browser. For firmware updates, click the “Firmware” icon on the PairGain home page, enter your password and select the type of firmware you wish to upgrade. Returns...
  • Page 26 Be as detailed in your description as possible. Pack the equipment in a shipping carton. Write PairGain’s address and the Return Material Authorization Number you received from Customer Service clearly on the outside of the carton: PairGain Technologies, Inc.

  • Page 27: Appendix C: Abbreviations

    Zero Byte Timeslot Equipment Catalog Item Errored Seconds Extended Superframe GNLB Generic Loopback Ground Potential Rise High-bit-rate Digital Subscriber HDSL Line HiGain Doubler Unit HiGain Universal Enclosure HiGain Line Unit HiGain Management Shelf HiGain Management Unit HLU-431 List 1F January 8, 1999...

  • Page 29: Certification And Warranty

    Do not try to repair the unit. If it fails, replace it with another unit and return the faulty unit to PairGain for repair.
  • Page 30 Corporate Office 14402 Franklin Avenue Tustin, CA 92780 Tel: (714) 832-9922 Fax: (714) 832-9924 For Technical Assistance: (800) 638-0031...

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