PairGain HIGAIN HLU-431 Manual
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PairGain HIGAIN HLU-431 Manual

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PAIRGAIN TECHNOLOGIES
Technical Practice
Engineering - PLANT Series
P
AIR
List 1D, PairGain #150-1504-14, CLEI Code: T1L2FKDAAA
CONTENTS
A. PRODUCT OVERVIEW
(Doubler and Non-Doubler)
17. DOUBLER DEPLOYMENT RULES
G
T
AIN
ECHNOLOGIES
MODEL HLU-431
H
G
I
PAGE
2
2
3
4
6
10
11
11
11
12
12
13
13
13
15
28
36
Figure 1. HLU-431, List 1D Front Panel. The PairGain
HLU-431 is the local unit used in conjunction with the HRU-412
36
remote unit to provide a complete HiGain HDSL system.
38
40
This product incorporates static sensitive
components. Proper electrostatic discharge
51
Section 150-431-114
January 17, 1997
L
U
TM
AIN
INE
NIT
CAUTION
procedures must be followed.
Release 01
Page 1

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Summary of Contents for PairGain HIGAIN HLU-431

  • Page 1: Table Of Contents

    C. APPLICATIONS USING HIGAIN DOUBLERS (HDU-451) 17. DOUBLER DEPLOYMENT RULES Figure 1. HLU-431, List 1D Front Panel. The PairGain HLU-431 is the local unit used in conjunction with the HRU-412 18. POWER CONSUMPTION remote unit to provide a complete HiGain HDSL system.

  • Page 2: Description And Features

    1. DESCRIPTION AND FEATURES • Margin threshold alarm 1.01 PairGain’s HiGain Line Unit Model HLU-431 • HDSL AIS and Smart-Jack AIS options List 1D (see Figure 1) is the Central Office side of • Easy return to factory default user settings a repeaterless T1 transmission system.

  • Page 3: Functional Operation

    Figure 2. HLU-431, List 1D Block Diagram. PairGain’s HDSL technology provides full duplex services at standard T-1 rates over copper wires between an HLU and an HRU, which comprise one HiGain system.

  • Page 4: Alarms

    Section 150-431-114 Release 01 3.09 3.04 The received HDSL channels are processed A female 9-pin (DB-9) RS-232 connector is by the transceiver and then passed on to the HLU- provided on the front panel (see Figure 3). This 431, List 1D demultiplexer module. The demultiplexer connector provides asynchronous access to the HiGain system maintenance...
  • Page 5 Section 150-431-114 Release 01 • FLASHING 8. ALRM MAL1: The margin on HDSL loop 1 Minor Alarm (for has dropped below the minimum threshold conditions, see Section A Paragraph 4.02) • RED - Fuse Alarm value set by the RS-232 terminal Margin Alarm Threshold;...

  • Page 6: System Options

    Section 150-431-114 Release 01 5. SYSTEM OPTIONS 5.04 Pressing the Mode button for three or more seconds causes the display to scroll through the 5.01 The HLU-431, List 1D contains a non-volatile HLU-431, List 1D software version number, its list RAM (NVRAM) which stores the system options number, the type of frame pattern being received from the settings.
  • Page 7 Section 150-431-114 Release 01 5.11 5.07 The Circuit ID option is set by choosing the The new T1 transceiver chip in the List 2D allows H option from the terminal Main Menu screen the unit to process both B8ZS and AMI code (see Figure 7 for non-doubler applications and Figure 16 inputs, regardless of the DS1 code setting (AMI or B8ZS).
  • Page 8 Section 150-431-114 Release 01 TABLE 1. HLU-431, LIST 1D SYSTEM OPTIONS Note: An asterisk (*) indicates HLU-431, List 1D factory (default) settings. Mode Selection Description Sets the equalizer to DSX-1 for 0 to 132 feet. Sets the equalizer to DSX-1 for 133 to 265 feet. Sets the equalizer to DSX-1 for 266 to 398 feet.
  • Page 9 Section 150-431-114 Release 01 TABLE 1. HLU-431, LIST 1D SYSTEM OPTIONS (CONTINUED) Mode Selection Description AUTO The HLU-431, List 1D and HRU-412 independently monitor their incoming T1 bit streams for the Binary Eight Zero Substitution (B8ZS) pattern. If either unit detects this pattern, it enters its B8ZS mode.

  • Page 10: Hdsl Line Voltage Option

    Section 150-431-114 Release 01 6. HDSL LINE VOLTAGE OPTION 6.03 The bipolar selection sets the HDSL line voltage to +65 V on loop 2 and -65 V on loop 1, for non- 6.01 The symmetry of the HDSL line powering voltage doubler applications.

  • Page 11: Installation

    If the equipment has been Maximum Power Consumption damaged in transit, immediately report the extent of 14 Watts (without doubler); 25 Watts (with doubler) damage to the transportation company and to PairGain Maximum Heat Dissipation Technologies. 6 Watts (without doubler); 9 Watts (with doubler) 7.02...

  • Page 12: Warranty

    Customer 10.03 If a unit needs repair, call PairGain for a Return Service Engineer through a callback process. This process Material Authorization (RMA) number and return results in a callback within 30 minutes of initiating the the defective unit, freight prepaid, along with a brief request.

  • Page 13: Applications Without Higain

    Section 150-431-114 Release 01 B. APPLICATIONS WITHOUT HIGAIN 13.03 In Central Office locations, the maximum power DOUBLERS (HDU-451) dissipation for open-faced, natural convection cooled mountings is limited to 120 Watts/sq. ft. per 12. SECTION INTRODUCTION Section 4.2.3 of the NEBS standard TR-NWT-000063. The footprint of a standard 14-slot 23-inch HLU-431, List 12.01 This section addresses HLU-431, List 1D...
  • Page 14 HLU/CREM (6 in 7) or the HRU/CLOC (5 in in 6) Smart-Jack loopback command. Refer to the PairGain HiGain-2 Intelligent Repeater Application Note 7) toward the customer. Either loop-up condition is terminated (looped down) with the (3 in 5) loop-down #910 Part #325-910-100 for more SPLB details.

  • Page 15: Testing

    Section 150-431-114 Release 01 15. TESTING 14.08 Pressing both the Mode and SEL front panel push buttons, for at least three seconds, initiates a 15.01 Table 2 through Table 7 provide step-by-step test Manual Loopback session. This session allows the user to procedures for the HLU-431, List 1D as a select one of four HiGain system loopbacks.
  • Page 16 Section 150-431-114 Release 01 Figure 6. HLU-431, List 1D Non-Doubler Loopback Configurations. The most important of the HiGain family of loopback options is the Smart-Jack loopback, which emulates the functions of a standard NID. Page 16...
  • Page 17 Section 150-431-114 Release 01 TABLE 2. HLU-431 GNLB TEST PROCEDURES Step Action Have the CO tester send the HRU-412 (3 in 7) in-band loop-up code for five seconds. Observe that the HLU-431, List 1D displays the “NREM” message indicating an HRU loopback is in effect (see Figure 6). Have the CO tester transmit a DSX-1 test signal into the HLU-431, List 1D and verify that the returned (looped) signal is error free.
  • Page 18 Section 150-431-114 Release 01 TABLE 3. HLU-431 A1LB TEST PROCEDURES Step Action Send the in-band Arming and NI LPBK code 11000 into the HLU-431, List 1D, for at least five seconds or at least four repetitions of the 16-bit ESF data link Arming code 1111 1111 0100 1000 (FF48).
  • Page 19 Section 150-431-114 Release 01 TABLE 3. TEST PROCEDURES FOR A1LB OPTION (CONTINUED) Step Action Using the following codes, a network tester can activate loopbacks NLOC or NREM or SMJK (if ENAbled) (see Figure 6). A customer tester can activate loopbacks CLOC or CREM. ADDRESSABLE 1 (A1LB) REPEATER LOOPBACK COMMANDS ARMING or NI LPBK (in-band) Arming code...
  • Page 20 Section 150-431-114 Release 01 TABLE 4. HLU-431 A2LB TEST PROCEDURES Step Action Send the in-band Arming and NI LPBK code 11000 into the HLU-431, List 1D, for at least five seconds or at least four repetitions of the 16-bit ESF data link Arming code 1111 1111 0100 1000 (FF48).
  • Page 21 Section 150-431-114 Release 01 TABLE 4. HLU-431 A2LB TEST PROCEDURES (CONTINUED) Step Action Using the following codes, a network tester can activate loopbacks NLOC or NREM or SMJK (if ENAbled) (see Figure 6). A customer tester can activate loopbacks CLOC or CREM. ADDRESSABLE 2 (A2LB) REPEATER LOOPBACK COMMANDS ARMING or NI LPBK (in-band) Arming code...
  • Page 22 Section 150-431-114 Release 01 TABLE 5. HLU-431 A3LB TEST PROCEDURES Step Action The HiGain Line Unit can be looped back (NLOC in Figure 6) by sending the Addressable Office Repeater (AOR) LPBK activation code 1111 1111 0001 1110 (FF1E) for at least five seconds. This causes the HLU-431, List 1D to enter its NLOC state (see Figure 6).
  • Page 23 Section 150-431-114 Release 01 TABLE 6. HLU-431 A4LB TEST PROCEDURES Step Action The HiGain Line Unit can be looped back (NLOC in Figure 6) by sending the Addressable Office Repeater (AOR) LPBK activation code 1111 1111 0001 1110 (FF1E) for at least five seconds. This causes the HLU-431, List 1D to enter its NLOC state (see Figure 6).
  • Page 24 Section 150-431-114 Release 01 TABLE 7. HLU-431 A5LB TEST PROCEDURES Step Action Send the in-band Arming and NI (Network Interface) LPBK code 11000 into the HLU-431, List 1D, for at least five seconds or at least four repetitions of the 16-bit ESF data link Arming code 1111 1111 0100 1000 (FF48).
  • Page 25 Section 150-431-114 Release 01 TABLE 7. HLU-431 A5LB TEST PROCEDURES (CONTINUED) Step Action Using the following codes, a network tester can activate loopbacks NLOC or NREM or SMJK (if ENAbled) (see Figure 6). A customer tester can activate loopbacks CLOC or CREM. ADDRESSABLE 5 (A5LB) REPEATER LOOPBACKS ARMING or NI LPBK (in-band) Arming code...
  • Page 26 Section 150-431-114 Release 01 TABLE 8. HLU-431, LIST 1D STATUS MENU MESSAGES Message Full Name Description ALARMS: NONE No Alarms “None” indicates no alarms. LLOS Local Loss of Signal No signal from HLU-431, List 1D local DSX-1 interface. RLOS Remote Loss of Signal No signal from HRU-412 remote DS1 interface.
  • Page 27 Section 150-431-114 Release 01 TABLE 8. HLU-431, LIST 1D STATUS MENU MESSAGES (CONTINUED) Message Full Name Description LOOPBACKS : SMJK Smart-Jack Loopback The loopback at HRU-412 (remote) toward network (see Figure 6) initiated by either the (2 in 5) in-band loopback code or the out-of- band ESF data link loopback code.

  • Page 28: System Maintenance Menu Screens

    Section 150-431-114 Release 01 16. SYSTEM MAINTENANCE MENU SCREENS 16.06 Figure shows 7-Day Performance History screen. The “Errored Seconds” and 16.01 Figure 7 is the Maintenance Terminal Main Menu “Unavailable Seconds” for both HDSL loops and each of screen. Its eight sub-menus provide many useful the two DS1 inputs are listed for the current and previous provisioning, test and monitoring tools.
  • Page 29 Section 150-431-114 Release 01 TABLE 9. GLOSSARY OF HIGAIN TERMS Term Definition Margins Indicates the excess signal-to-noise ratio, at either the HRU-412 or HLU 319, List 2D HDSL ports, relative to a 10 Bit Error Rate. First value is current margin. Second value is minimum margin since (C)leared last.
  • Page 30 Section 150-431-114 Release 01 TABLE 10. HLU-431, LIST 1D FOUR-CHARACTER FRONT PANEL MESSAGES Message Full Name Description CREM Customer Remote Loopback Signal from customer is looped back to customer at HLU-431. NLOC Network Local Loopback DSX-1 signal is looped back to DSX-1 at HLU. CLOC Customer Local Loopback Signal from customer is looped back to customer at HRU-412.
  • Page 31 Section 150-431-114 Release 01 TABLE 10. HLU-431, LIST 1D FOUR-CHARACTER FRONT PANEL MESSAGES (CONTINUED) Message Full Name Description PWR FEED Power Feed Short Indicates a short between the two HDSL pairs. This same SHRT message can occur with an HRU which is drawing the correct amount of power over good cable pairs, but can not communicate with the HLU.
  • Page 32 Section 150-431-114 Release 01 Figure 7. HLU-431, List 1D Main Menu. Figure 8. HLU-431, List 1D Non-Doubler Status Display. Page 32...
  • Page 33 Section 150-431-114 Release 01 Figure 9. HLU-431, List 1D Set Clock Menu. Figure 10. HLU-431, List 1D System Settings Menu. Page 33...
  • Page 34 Section 150-431-114 Release 01 Figure 11. HLU-431, List 1D Non-Doubler Loopback Menu Figure 12. HLU-431, List 1D Non-Doubler Performance Data Screen. Page 34...
  • Page 35 Section 150-431-114 Release 01 Figure 13. HLU-431, List 1D Non-Doubler 7-Day Performance History Screen. Figure 14. HLU-431, List 1D Non-Doubler Alarm History Screen. Page 35...

  • Page 36: Applications Using Higain Doublers

    Section 150-431-114 Release 01 APPLICATIONS USING HIGAIN DOUBLERS 18. POWER CONSUMPTION (HDU-451) 18.01 The maximum current drain is the current drawn from the shelf power supply when it is at 17. GENERAL minimum voltage (-42.5 Vdc) under a worst case 17.01 For doubler applications, one or two doublers application.

  • Page 37: Loopback Operation

    Section 150-431-114 Release 01 19. LOOPBACK OPERATION 18.02 maximum HLU-431, List power 19.01 The HiGain system has a family of loopback dissipation is the power that is converted into heat within the unit. It contributes to the total heat generated options.
  • Page 38 HLU-431, List 1D, HRU-412 and listed. Pressing the Mode push button two more times two in-line HDU-451 doublers. Refer to the PairGain yields the CRE and CLO loopback options in the sequence HiGain Intelligent Repeater Application Note #910, Part listed.

  • Page 39: Testing

    Section 150-431-114 Release 01 The next loopback option can be presented by pressing the 20.03 If trouble is encountered on the HLU-431 List 2D Mode push button, however, the previously executed DSX-1 interface, verify that the HLU-431, List loopback will remain active until the SEL push button is 1D is making a positive connection with the mounting pressed and a different loopback is activated.
  • Page 40 Section 150-431-114 Release 01 Figure 15. HLU-431 Doubler Loopback Configurations. The most important of the HiGain family of loopback options is the Smart-Jack loopback, which emulates the functions of a standard NID. Page 40...
  • Page 41 Section 150-431-114 Release 01 TABLE 12. HLU-431 GNLB TEST PROCEDURES Step Action Have the CO tester send the HRU-412 (3 in 7) in-band loop-up code for five seconds. Observe that the HLU- 431, List 1D displays the “NREM” message indicating an HRU-412 loopback is in effect (see Figure 15). Have the CO tester transmit a DSX-1 test signal into the HLU-431, List 1D and verify that the returned (looped) signal is error free.
  • Page 42 Section 150-431-114 Release 01 TABLE 13. HLU-431 A1LB TEST PROCEDURES Step Action Send the in-band Arming and NI LPBK code 11000 into the HLU-431, List 1D, for at least five seconds or at least four repetitions of the 16-bit ESF data link Arming code 1111 1111 0100 1000 (FF48). (Left bit arrives first.) Monitor the output of the HLU-431, List 1D for the return of the pattern.
  • Page 43 Section 150-431-114 Release 01 TABLE 13. HLU-431 A1LB TEST PROCEDURES (CONTINUED) Step Action Using the following codes, a network tester can activate loopbacks NLOC or NREM or SMJK (if ENAbled) (see Figure 15). A customer tester can activate loopbacks CLOC or CREM. ADDRESSABLE 1 (A1LB) REPEATER LOOPBACK COMMANDS ARMING or NI LPBK (in-band) Arming code...
  • Page 44 Section 150-431-114 Release 01 TABLE 14. HLU-431 A2LB TEST PROCEDURES Step Action Send the in-band Arming and NI LPBK code 11000 into the HLU-431, List 1D, for at least five seconds or at least four repetitions of the 16-bit ESF data link Arming code 1111 1111 0100 1000 (FF48). (Left bit arrives first.) Monitor the output of the HLU-431, List 1D for the return of the pattern.
  • Page 45 Section 150-431-114 Release 01 TABLE 14. HLU-431 A2LB TEST PROCEDURES (CONTINUED) Step Action Using the following codes, a network tester can activate loopbacks NLOC or NREM or SMJK (if ENAbled) (see Figure 15). A customer tester can activate loopbacks CLOC or CREM. ADDRESSABLE 2 (A2LB) REPEATER LOOPBACK COMMANDS ARMING or NI LPBK (in-band) Arming code...
  • Page 46 Section 150-431-114 Release 01 TABLE 15. HLU-431 A3LB TEST PROCEDURES Step Action The HLU-431, List 1D can be looped back (NLOC in Figure 15) by sending the Addressable Office Repeater (AOR) LPBK activation code 1111 1111 0001 1110 (FF1E) for at least five seconds. This causes the HLU-431, List 1D to enter its NLOC state (see Figure 15).
  • Page 47 Section 150-431-114 Release 01 TABLE 16. HLU-431 A4LB TEST PROCEDURES Step Action The HLU-431, List 1D can be looped back (NLOC in Figure 15) by sending the Addressable Office Repeater (AOR) LPBK activation code 1111 1111 0001 1110 (FF1E)for at least five seconds. This causes the HLU-431, List 1D to enter its NLOC state (see Figure 15).
  • Page 48 Section 150-431-114 Release 01 TABLE 17. HLU-431 A5LB TEST PROCEDURES Step Action Send the in-band Arming and NI LPBK code 11000 into the HLU-431, List 1D, for at least five seconds or at least four repetitions of the 16-bit ESF data link Arming code 1111 1111 0100 1000 (FF48). (Left bit arrives first.) Monitor the output of the HLU-431, List 1D for the return of the pattern.
  • Page 49 Section 150-431-114 Release 01 TABLE 17. HLU-431 A5LB TEST PROCEDURES (CONTINUED) Step Action Using the following codes, a network tester can activate loopbacks NLOC or NREM or SMJK (if ENAbled) (see Figure 15). A customer tester can activate loopbacks CLOC or CREM. ADDRESSABLE 5 (A5LB) REPEATER LOOPBACK COMMANDS ARMING or NI LPBK (in-band) Arming code...

  • Page 50: System Maintenance Menu Screens

    Section 150-431-114 Release 01 21. SYSTEM MAINTENANCE MENU SCREENS 21.07 Figure through Figure show Performance Data screens doubler 21.01 Figure 16 is the Maintenance Terminal Main applications. The “Errored Seconds” and “Unavailable Menu screen. Its eight sub-menus provide many Seconds” for both HDSL loops and each T1 input are useful provisioning, test and monitoring tools.
  • Page 51 Section 150-431-114 Release 01 21.09 Figure 32 through Figure 34 show the Alarm (Clear). The maximum non-overflowing count is 999. History screens for doubler applications. The Span 1 screen concerns alarms which occurred on the alarms are defined in Section A Paragraph 4.01. The LOS two HDSL loops between the HLU-431, List 1D and the first doubler (HDU1).
  • Page 52 Section 150-431-114 Release 01 TABLE 18. HLU-431, LIST 1D STATUS MENU MESSAGES (CONTINUED) Message Full Name Description LOOPBACKS: SMJK Smart-Jack Loopback The loopback at HRU-412 (remote) toward network (see Figure 15) initiated by either the (2 in 5) in-band loopback code or the out-of- band ESF data link loopback code.
  • Page 53 Section 150-431-114 Release 01 TABLE 19. GLOSSARY OF HIGAIN TERMS Term Definition Margins Indicates the excess signal-to-noise ratio, at the HRU-412, HDU-451, or HLU-431, List 1D HDSL ports, relative to a 10 BER. First value is current margin. Second value is minimum margin since (C)leared last.
  • Page 54 Section 150-431-114 Release 01 TABLE 20. HLU-431, LIST 1D FOUR-CHARACTER FRONT PANEL MESSAGES Message Full Name Description CREM Customer Remote Loopback Signal from customer is looped back to customer at HLU-431. NLOC Network Local Loopback DSX-1 signal is looped back to DSX-1 at HLU. CLOC Customer Local Loopback Signal from customer is looped back to customer at HRU-412.
  • Page 55 Section 150-431-114 Release 01 TABLE 20. HLU-431, LIST 1D FOUR-CHARACTER FRONT PANEL MESSAGES (CONTINUED) Message Full Name Description A2L1 Acquisition 2 Loop 1 The first doubler is trying to establish synchronization with either the HRU or the second doubler multiplexers on loop 1 of span 2.
  • Page 56 Section 150-431-114 Release 01 TABLE 20. HLU-431, LIST 1D FOUR-CHARACTER FRONT PANEL MESSAGES (CONTINUED) Message Full Name Description BAD RT? No response from HRU The HLU does not receive any response from the HRU. Thus, the HRU’s integrity is questionable. VER XXXX HLU software Version number This is displayed during the System Settings review mode.
  • Page 57 Section 150-431-114 Release 01 Figure 16. HLU-431, List 1D Main Menu. Figure 17. HLU-431, List 1D Status Display - Span 1 (1 or 2 Doublers). Page 57...
  • Page 58 Section 150-431-114 Release 01 Figure 18. HLU-431, List 1D Status Display - Span 2 (1 Doubler). Figure 19. HLU-431, List 1D Status Display - Span 2 (2 Doublers). Page 58...
  • Page 59 Section 150-431-114 Release 01 Figure 20. HLU-431, List 1D Status Display - Span 3 (2 Doublers). Figure 21. HLU-431, List 1D Set Clock Menu. Page 59...
  • Page 60 Section 150-431-114 Release 01 Figure 22. HLU-431, List 1D System Settings Menu. Figure 23. HLU-431, List 1D Doubler Loopback Menu. Page 60...
  • Page 61 Section 150-431-114 Release 01 Figure 24. HLU-431, List 1D Performance Data Screen - Span 1 (1 or 2 Doublers). Figure 25. HLU-431, List 1D Performance Data Screen - Span 2 (1 Doubler). Page 61...
  • Page 62 Section 150-431-114 Release 01 Figure 26. HLU-431, List 1D Performance Data Screen - Span 2 (2 Doublers). Figure 27. HLU-431, List 1D Performance Data Screen - Span 3 (2 Doublers Page 62...
  • Page 63 Section 150-431-114 Release 01 Figure 28. HLU-431, List 1D 7-Day Performance History Screen - Span 1 (1 or 2 Doublers). Figure 29. HLU-431, List 1D 7-Day Performance History Screen - Span 2 (1 Doubler). Page 63...
  • Page 64 Section 150-431-114 Release 01 Figure 30. HLU-431, List 1D 7-Day Performance History Screen - Span 2 (2 Doublers). Figure 31. HLU-431, List 1D 7-Day Performance History Screen - Span 3 (2 Doublers). Page 64...
  • Page 65 Section 150-431-114 Release 01 Figure 32. HLU-431, List 1D Alarm History Screen - Span 1 (1 or 2 Doublers). Figure 33. HLU-431, List 1D Alarm History Screen - Span 2 (1 or 2 Doublers). Page 65...
  • Page 66 Section 150-431-114 Release 01 Figure 34. HLU-431, List 1D Alarm History Screen - Span 3 (2 Doublers). Copyright © 1997, PairGain Technologies, Inc. PairGain is a registered trademark, CopperOptics and HiGain are trademarks of PairGain Technologies, Inc. Page 66...

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