PairGain HiGain HLU-319 Manual
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PairGain HiGain HLU-319 Manual

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Model
List Number
Part Number
HLU-319
4B
150-1140-42
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ECHNOLOGIES
NC
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NGINEERING
ERVICES
ECHNICAL
RACTICE
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150-319-142-01
ECTION
Revision History of This Practice
Revision 01—December 22, 1997
A) Initial Release

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Summary of Contents for PairGain HiGain HLU-319

  • Page 1 Model List Number Part Number HLU-319 150-1140-42 ECHNOLOGIES NGINEERING ERVICES ECHNICAL RACTICE 150-319-142-01 ECTION Revision History of This Practice Revision 01—December 22, 1997 A) Initial Release...
  • Page 2 ©Copyright 1997 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 SING ANUAL Two types of messages, identified by icons, appear in the text. Notes contain information about special circumstances. Cautions indicate the possibility of equipment damage or the possibility of personal injury. HLU-319 List 4B PairGain Engineering - Plant Series...
  • Page 4 Revision 01 December 22, 1997 150-319-142-01 PairGain Engineering - Plant Series HLU-319 List 4B...

  • Page 5: Table Of Contents

    Set Clock ..............15 System Settings ............16 Select Loopback Test ..........17 View Performance Data .......... 18 View Performance History ........19 View Alarm History ..........20 Enter Circuit ID Number ......... 20 HLU-319 List 4B PairGain Engineering - Plant Series...
  • Page 6 HiGain Terms___________________________________________40 Front Panel Messages ____________________________________41 Certification and Warranty _______________________________45 VCCI Certification ..............45 UL Listing ................45 Warranty ................. 46 Technical Support _______________________________________47 Phone or Fax................47 Returns..................47 World Wide Web..............48 PairGain Engineering - Plant Series HLU-319 List 4B...

  • Page 7: Overview

    784 kbps full duplex 2B1Q HDSL transmission on two pairs • Front panel status indicating LED • On/off front panel display power cycling • DSX-1 LOS detector (125 consecutive zeros) • Margin threshold alarm • HDSL AIS and SmartJack AIS options HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 8: Application

    800 ohms. Table 1. HDSL Loss over Cables Loss at 196 kHz Cable Gauge Ohms per km (db/km) 0.4 mm 12.7 272.3 0.51 mm 170.6 0.61 mm 0.91 mm 52.5 PairGain Engineering - Plant Series HLU-319 List 4B...

  • Page 9: Specifications

    Margin Indicator Displays HDSL loop SNR margin for each HDSL loop relative to 10 BER operation Electrical Protection Secondary surge protection on DS1 and HDSL ports; Power cross protection on HDSL ports HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 10: Functional Description

    HLU-319 List 4B and the HRU-412 List 8B. This provides a total capacity of 1.568 Mbps between the two units. The HiGain HLU-319 List 4B receives a 1.544 Mbps DS1 data stream from the DSX-1 digital cross connect interface. The HLU-319 List 4B contains a DSX-1 frame synchronizer controlled by an 8-bit microprocessor that determines the type of framing on the DS1 stream and synchronizes to it.
  • Page 11 The HLU-319 List 4B contains a main power supply that converts -48 Vdc power to voltage for the HLU-319 List 4B circuitry. The female 9-pin (DB-9) Craft (RS-232) port, on the front panel, provides access to HiGain system configuration, provisioning, and performance monitoring. HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 12: Alarms

    The MAL alarms (8 and 9, above) are disabled by setting the margin alarm threshold to 0 (on the Systems Settings menu). A minor alarm can be retired by executing the Alarm CutOff (ACO) option by pressing the SEL button on PairGain Engineering - Plant Series HLU-319 List 4B...
  • Page 13 -80 V. It can sink a current of 10 mA. Pin 7 is the NMA serial bus. It allows access to the HMU-319 List 5B, which provides shelf management. HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 14: Front Panel Features

    December 22, 1997 150-319-142-01 Front Panel Features Figure 1 shows the front panel of the HLU-319 List 4B. Table 2 describes the front panel components. Figure 1. HLU-319 List 4B Front Panel Components PairGain Engineering - Plant Series HLU-319 List 4B...
  • Page 15 Card handle Pulls down to release the HLU-319 List 4B from the shelf slot. The handle closes when the HLU-319 List 4B is properly installed in a slot. HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 16: Installation

    The HLU-319 List 4B mounts in wire-wrapped and connectorized shelves, including: • PairGain HMS-318 (22 slot, 19 inch shelf) • PairGain HMS-319 (3 slot, 19 inch horizontal shelf) • PairGain HMS-317 (28 slot, 23 inch shelf) • PairGain HMS-308 (8 slot remote enclosure)
  • Page 17 Place your thumbs on the HLU-319 List 4B front panel and push the HLU-319 List 4B into the card-edge connector until it is entirely within the card guides. HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 18: Configure, Provision, And Monitor Performance

    Figure 3 for the DB-9 female connector wiring. Figure 3. HLU-319 List 4B Craft Port Wiring Connect the other end of the terminal cable to the console port on the dumb terminal. PairGain Engineering - Plant Series HLU-319 List 4B...

  • Page 19: Log On And Use The Menus

    NONE E. VIEW PERFORMANCE DATA F. VIEW PERFORMANCE HISTORY G. VIEW ALARM HISTORY H. ENTER CIRCUIT ID # Access options on the Main Menu by typing the letter of the desired option. HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 20: View Span Status

    B8ZS (E)xit (C)lear (U)pdate Type to update the Span Status screen to the latest information. Type & to clear the Span Status screen data. Type to exit to the Span Status screen. PairGain Engineering - Plant Series HLU-319 List 4B...

  • Page 21: Set Clock

    Type the at the Update Remote? prompt to update the HRU-412 List 8B clock. SET CLOCK TIME: 00:01:39 DATE: 04/09/98 CIRCUIT ID#: Format: HH:MM MM/DD/YY NEW TIME: 12:00 NEW DATE: 04/14/98 (U)PDATE REMOTE? HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 22: System Settings

    Setting Options” on page 23 Table 3 on page 24 for more information about the options. When all selections are made, type to exit the option. & Type to confirm the changes. PairGain Engineering - Plant Series HLU-319 List 4B...

  • Page 23: Select Loopback Test

    B. NETWORK LOOP HLU (NLOC) C. NETWORK LOOP HRU (NREM) G. CUSTOMER LOOP HLU (CREM) H. CUSTOMER LOOP HRU (CLOC) (E)xit Type the number of the desired loopback option. Type to exit the Loopback Menu. HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 24: View Performance Data

    000/000 000/000 000/000 000/000 000/000 000/000 (E)xit (P)revious (N)ext Type to view the previous Performance Data screen. Type to view the next Performance Data screen. Type to exit the Performance Data screens. PairGain Engineering - Plant Series HLU-319 List 4B...

  • Page 25: View Performance History

    00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 04/12 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 04/13 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 current 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 (E)xit Type to exit the 7 Day History screen. HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 26: View Alarm History

    04/09/98-00:00 04/09/98-00:00 MARGIN L2 LAST CLEARED: NONE (E)xit (C)lear (U)pdate Type to exit the Alarm History screen. Enter Circuit ID Number From the Main Menu, type to enter a circuit identification number. PairGain Engineering - Plant Series HLU-319 List 4B...

  • Page 27: System Options

    30 seconds.) • Accept the requested parameter changes by pressing the SEL button. Yes displays and the changes are made. The display returns to its normal mode. HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 28: Set Factory Default Values

    T1 directions, the HiGain T1 output codes will not match, causing the received data to be AMI instead of B8ZS (or vice versa), and thus violating the 1s density rules by having excessive zeroes. PairGain Engineering - Plant Series HLU-319 List 4B...

  • Page 29: System Setting Options

    AMI mode, it can receive B8ZS but can only transmit AMI. The Self-test mode, which occurs when both HDSL loops are out of sync, causes the Alarm Indicating Signal (AIS) pattern to exhibit occasional BPVs. HLU-319 List 4B PairGain Engineering - Plant Series...
  • Page 30 Sets the equalizer to DSX-1 for 81 m to 121 m. Sets the equalizer to DSX-1 for 122 m to 162 m. Sets the equalizer to DSX-1 for 163 m to 200 m. * Indicates HLU-319 List 4B factory (default) settings. (Continued) PairGain Engineering - Plant Series HLU-319 List 4B...
  • Page 31 HDSL loop or a total of 170 BPVs on DSX-1) occur within a 24 hour period. NONE* Prevents generation of a minor alarm due to excessive errored seconds. * Indicates HLU-319 List 4B factory (default) settings. (Continued) HLU-319 List 4B PairGain Engineering - Plant Series...
  • Page 32 Places both the HLU-319 List 4B and HRU-412 List 8B into their B8ZS modes. Places both the HLU-319 List 4B and HRU-412 List 8B into their AMI modes. * Indicates HLU-319 List 4B factory (default) settings. (Continued) PairGain Engineering - Plant Series HLU-319 List 4B...
  • Page 33 Threshold determines the minimum allowable margin below which a minor alarm can occur. Note that setting the threshold to 0 inhibits the margin alarm. 4 dB* * Indicates HLU-319 List 4B factory (default) settings. (Continued) HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 34: Power Consumption

    (-42.5 V). It determines the shelf fusing requirements. Heat baffles should be placed between every shelf to deflects the rack’s heat outward and reduces thermo stress on the plugs. PairGain Engineering - Plant Series HLU-319 List 4B...

  • Page 35: Loopback Operation

    These additions make A1LB identical to A2LB. A1LB is given a separate identity to allow future T1E1 enhancements without affecting A2LB. Addressable Repeater Loopback Functions A HiGain system is capable of five special in-band loopback (SPLB) command sequences. HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 36: Initiating Manual Loopback Sessions

    If the MODE or SEL button is not pressed for 30 seconds and no loopback is in effect, the manual loopback session terminates and the the front panel display returns to normal mode. PairGain Engineering - Plant Series HLU-319 List 4B...
  • Page 37 T1 payload or by a command from the HLU-319 List 4B (front panel buttons or maintenance screen selections). Initiate loopbacks using HG for the HLU-319 List 4B or PL for T1 payload on the Loopback Menu and Span Status screen. HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 38: Loopback Test Procedures

    All equalizers should be set to the distance from the DSX-1 to the shelf. The transmit and receive T1 DSX-1 ports have splitting access and bridging miniature 210 series jacks. Connecting one cable between the two bridging PairGain Engineering - Plant Series HLU-319 List 4B...

  • Page 39: Gnlb Loopback Test Procedures

    LED on the front panel display and on the Span Status screen.) Repeat step 2. If the test passes, the problem is in the downstream direction. If it fails, the problem is in the upstream (CO) direction. HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 40: A1Lb, A2Lb, And A5Lb Test Procedures

    This error pattern repeats every 20 seconds as long as the IOR loopback pattern is being sent. This same 20 second repeat scenario also applies to ILR, Time-out Override, and Query commands. PairGain Engineering - Plant Series HLU-319 List 4B...
  • Page 41 To avoid this uncertainty, PairGain recommends sending the IR commands unframed. The HLU-319 List 4B is now in Logic Loopback. The Loopback Time-out option is user settable to: •...
  • Page 42 ILR-2 LPBK (NREM HRU Loop up 1101(D)0101(5)1101(D)0101(5) and CLOC 20 bit errors) IR LPDN Loopdown (HLU 1001(9)0011(3)1001(9)0011(3) or HRU) IR QUERY LPBK Query loopback 1101(D)0101(5)1101(D)0101(5) IR ALTERNATE QUERY Alternate Query 1101(D)0101(5)1110(E)1010(A) LPBK loopback (Continued) PairGain Engineering - Plant Series HLU-319 List 4B...
  • Page 43 20 bit errors each, including frame bits. Those test sets that do not count frame error bits as data bit errors will indicate fewer bits than the HRU transmits for this CI loopback. HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 44: A3Lb And A4Lb Test Procedures

    • LU = LoopUp • LD = LoopDown • NI = Network Interface • CI = Customer Interface • ESF-DL = Extended Super Frame-Data Link PairGain Engineering - Plant Series HLU-319 List 4B...
  • Page 45 Bit Error Ratio (BER) on the facility. Note that the entire arming and loopback sequence can be initiated at the remote HRU location. ** The number in ( ) identifies the HEX number for the 4-bit group. HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 46: Higain Terms

    The number of seconds during which the T1 input signal was absent (125 or more consecutive 0s). Frame Type Type of T1 framing input stream (SF, ESF, Unframed or No Activity). (Continued) PairGain Engineering - Plant Series HLU-319 List 4B...

  • Page 47: Front Panel Messages

    HRU-412 List 8B. NREM Network Remote Loopback DSX-1 signal is looped back to DSX-1 at HRU-412 List 8B. SMJK Remote SmartJack Loopback DSX-1 signal is looped back to DSX-1 at HRU-412 List 8B. (Continued) HLU-319 List 4B PairGain Engineering - Plant Series...
  • Page 48 Armed and ready to respond to Intelligent Repeater loop codes. Alarm CutOff A minor alarm occurred and was retired to an ACO condition, after pressing the SEL button on the HLU-319 List 4B front panel. (Continued) PairGain Engineering - Plant Series HLU-319 List 4B...
  • Page 49 HLU-319 List 4B List number Displayed during System Settings review mode. Frame: SF, ESF, UNFR, None Defines the type of frame pattern being received from the DSX-1. Displayed during System Settings review mode. (Continued) HLU-319 List 4B PairGain Engineering - Plant Series...
  • Page 50 MNGD Managed The HLU-319 List 4B is under control of the HMU-319 List 5B network management unit. In this state, the Craft port on the HLU-319 List 4B front panel is inoperative. PairGain Engineering - Plant Series HLU-319 List 4B...

  • Page 51: Certification And Warranty

    Always disconnect telephone lines and power connections from wall outlets before servicing or disassembling this equipment. All wiring external to the product should follow the provisions of the current edition of the National Electrical Code. HLU-319 List 4B PairGain Engineering - Plant Series...

  • Page 52: Warranty

    PairGain's sole opinion, is determined to be defective upon examination at our plant. The transportation charges from the Buyer to PairGain will be prepaid by the Buyer. When the equipment is shipped back to the Buyer, PairGain will pay the charges, unless no trouble is found (NTF), in which case the buyer will pay for the shipment.

  • Page 53: Technical Support

    PairGain provides technical support by phone, fax, and the World Wide Web. Phone or Fax PairGain Technical Assistance is available 24 hours a day, 7 days a week by contacting PairGain’s Customer Service Engineering group at one of the following numbers: •...

  • Page 54: World Wide Web

    A description of the equipment, as well as the number of units that you are returning. Be sure to include the model and part number of each unit. • The shipping address to which PairGain should return the repaired equipment. • The reason for the return: a) The equipment needs an ECO/ECN upgrade.
  • Page 56 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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