PairGain HLU-231 User manual

HIGAIN LINE UNIT
PAIRGAIN TECHNOLOGIES, INC.
ENGINEERING SERVICES TECHNICAL PRACTICE
™150-231-175-01T¨
SECTION 150-231-175-01
Model List Number Part Number CLEI Code
HLU-231 7E 150-1111-75 T1L2KSXAAA
R
S
2
3
2
L
MARGIN
STATUS
BRG
SPAN
XMT
RCV
BRG
SPAN
dB
HLU 231
H G LINE UNIT
IAIN
HDSL
MODE
D
S
1
SEL
PairGain

Revision History of This Practice 150-231-175-01, Revision 01
ii September 23, 1998 HLU-231 List 7E
REVISION HISTORY OF THIS PRACTICE
©Copyright 1998 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.
Other product names mentioned in this practice are used for identification purposes only and may be trademarks or registered
trademarks of their respective companies.
Revision Release Date Revisions Made
01 September 23, 1998 Initial release

150-231-175-01, Revision 01 Using This Technical Practice
HLU-231 List 7E September 23, 1998 iii
USING THIS TECHNICAL PRACTICE
Two types of messages, identified by icons, appear in the text.
INSPECTING SHIPMENT
Upon receipt of the equipment:
•Unpack each container and visually inspect it for signs of damage. If the equipment has been damaged in
transit, immediately report the extent of damage to the transportation company and to PairGain. Order
replacement equipment, if necessary.
•Check the packing list to ensure complete and accurate shipment of each listed item. If the shipment is short
or irregular, contact PairGain as described in the Warranty. If you must store the equipment for a prolonged
period, store the equipment in its original container.
Notes contain information about special circumstances.
Cautions indicate the possibility of equipment damage or the possibility of personal injury.

Inspecting Shipment 150-231-175-01, Revision 01
iv September 23, 1998 HLU-231 List 7E

150-231-175-01, Revision 01 Table of Contents
HLU-231 List 7E September 23, 1998 v
TABLE OF CONTENTS
Overview ____________________________________________________________________________ 1
Features..............................................................................................................................................1
Applications .......................................................................................................................................2
Applications without HiGain Doublers...............................................................................2
Applications with HiGain Doublers ....................................................................................3
Product Description............................................................................................................................3
Front Panel...........................................................................................................................4
Status LED...........................................................................................................................5
Front Panel Display .............................................................................................................5
HLU-231 List 7E Card Connector.......................................................................................7
Network Management Control Bus.....................................................................................8
Fuse Alarm ..........................................................................................................................8
System Alarm Relay Output................................................................................................8
Installation___________________________________________________________________________ 9
Provisioning the HLU-231______________________________________________________________ 9
Setting Options through SEL and MODE........................................................................................10
Factory Default Values......................................................................................................10
Displaying System Inventory ............................................................................................11
Connecting to a Maintenance Terminal...........................................................................................11
Maintenance ________________________________________________________________________ 12
Navigating the Maintenance Terminal Screens ...............................................................................12
System Spans.....................................................................................................................12
Navigation Keys ................................................................................................................13
Selecting an Option ...........................................................................................................13
Initializing the Maintenance Terminal Screens ...............................................................................13
Maintenance Terminal Main Menu..................................................................................................14
View Span Status .............................................................................................................................15
Span Status Screen: Non-Doubler Applications................................................................15
Span Status Screen: Doubler Applications........................................................................15
Span Status Fields, Alarms, and Loopbacks......................................................................17
Set Clock..........................................................................................................................................19
Set Time.............................................................................................................................19
Set Date..............................................................................................................................20
Update the HRU Time and Date........................................................................................20

Table of Contents 150-231-175-01, Revision 01
vi September 23, 1998 HLU-231 List 7E
System Settings ............................................................................................................................... 20
DS0 Blocking Option........................................................................................................ 21
DS1 Line Code Option...................................................................................................... 21
Margin Alarm Threshold .................................................................................................. 22
HAIS Selections................................................................................................................ 22
HDSL Line Voltage Operation ......................................................................................... 22
Ground Fault Detect.......................................................................................................... 23
System Settings Screen Options ....................................................................................... 23
Loopback Menu............................................................................................................................... 25
Loopback Menu: No Doubler........................................................................................... 26
Loopback Menu: Two Doublers ....................................................................................... 26
Initiating a Loopback........................................................................................................ 27
Disable Loopbacks............................................................................................................ 27
Performance Data Screens............................................................................................................... 28
Performance Data Screen: No Doubler............................................................................. 29
Performance Data Screen: With Doubler.......................................................................... 29
View Performance History.............................................................................................................. 30
The 7 Day History Screen: No Doubler............................................................................ 31
The 7 Day History Screen: With Doubler......................................................................... 31
View Alarm History ........................................................................................................................ 32
Alarm History Screen: No Doubler .................................................................................. 33
Alarm History Screen: With Doubler ............................................................................... 34
Circuit ID......................................................................................................................................... 34
System Alarms_______________________________________________________________________ 35
Retiring System Alarms .................................................................................................................. 35
Self Test........................................................................................................................................... 36
Loopback Operation__________________________________________________________________ 36
SmartJack (SMJK) Loopback.......................................................................................................... 36
Generic Loopback Code (GNLB) ................................................................................................... 36
Addressable Repeater Loopback Functions .................................................................................... 37
Initiating Manual Loopback Sessions .............................................................................................37
Loopback Test Procedures .............................................................................................................. 38
Loopback Operation without Doublers........................................................................................... 39
Loopback Operation with Doublers................................................................................................39
GNLB Loopback Test Procedures...................................................................................................41
A1LB, A2LB, and A5LB Test Procedures ....................................................................... 41
A3LB and A4LB Test Procedures .................................................................................... 44

150-231-175-01, Revision 01 Table of Contents
HLU-231 List 7E September 23, 1998 vii
Appendix A - Technical Specifications___________________________________________________ 46
Appendix B - Abbreviations ___________________________________________________________ 47
Appendix C - Functional Operation_____________________________________________________ 49
Power Consumption.........................................................................................................................50
Power Consumption: Without Doublers............................................................................50
Maximum Power Dissipation:.............................................................................50
Maximum Power Consumption: .........................................................................50
Maximum Current Drain:....................................................................................50
Power Consumption: With Doublers.................................................................................51
Appendix D - Compatibility ___________________________________________________________ 53
T1 Repeater Shelves and Related Equipment..................................................................................53
HiGain Doubler Circuit Deployment...............................................................................................53
Appendix E - Product Support _________________________________________________________ 55
Technical Support............................................................................................................................55
Warranty...........................................................................................................................................55
FCC Compliance..............................................................................................................................56
Modifications ...................................................................................................................................56
Standards Compliance......................................................................................................................56
Barcode and Configuration Number Information............................................................................57

List of Figures 150-231-175-01, Revision 01
viii September 23, 1998 HLU-231 List 7E
LIST OF FIGURES
Figure 1. HLU-231 List 7E Front Panel .......................................................................................................... 4
Figure 2. HLU-231 List 7E Card-Edge Connector.......................................................................................... 7
Figure 3. Installing the HLU-231 into a Shelf................................................................................................. 9
Figure 4. DB-9 RS-232 I/O Pinouts............................................................................................................... 12
Figure 5. System Spans.................................................................................................................................. 13
Figure 6. Maintenance Terminal Main Menu................................................................................................ 14
Figure 7. Span Status Screen (No Doubler)................................................................................................... 15
Figure 8. Span 1 Status Screen ...................................................................................................................... 16
Figure 9. Span 2 Status Screen ...................................................................................................................... 16
Figure 10. Set Clock Screen .......................................................................................................................... 19
Figure 11. System Settings Screen ................................................................................................................ 20
Figure 12. Loopback Menu: No Doubler....................................................................................................... 26
Figure 13. Loopback Menu with Two Doublers............................................................................................ 26
Figure 14. NLOC Loopback Mode in the Maintenance Terminal Main Menu............................................. 27
Figure 15. Performance Data Screen: No Doublers....................................................................................... 29
Figure 16. Span 3 Performance Data Screen................................................................................................. 30
Figure 17. 7 Day History Screen for Span 1 (No Doubler)........................................................................... 31
Figure 18. 7 Day History Screen Span 3 ....................................................................................................... 32
Figure 19. Alarm History Screen for Span 1 ................................................................................................. 33
Figure 20. Alarm History Screen for Span 3 ................................................................................................. 34
Figure 21. HLU-231 Non-Doubler Loopback Configurations...................................................................... 39
Figure 22. Doubler Loopback Configurations............................................................................................... 40
Figure 23. HLU-231 Block Diagram............................................................................................................. 49
Figure 24. Bar Code Label and Configuration Number ................................................................................ 57

150-231-175-01, Revision 01 List of Tables
HLU-231 List 7E September 23, 1998 ix
LIST OF TABLES
Table 1. HDSL Loss Over Cables....................................................................................................................2
Table 2. Front Panel Components and Labels..................................................................................................5
Table 3. Status LED Descriptions ....................................................................................................................5
Table 4. Front Panel Display Messages .........................................................................................................6
Table 5. Navigational Keys on the Maintenance Terminal............................................................................13
Table 6. Maintenance Terminal Screens ........................................................................................................14
Table 7. Span Status Fields and Descriptions ...............................................................................................17
Table 8. HLU-231 Status Menu Messages ....................................................................................................18
Table 9. HLU-231 List 7E System Settings Screen Options .........................................................................23
Table 10. Errored and Unavailable Seconds Definitions ...............................................................................28
Table 11. Alarm History Fields and Descriptions..........................................................................................33
Table 12. HDSL System Alarms....................................................................................................................35
Table 13. SPLB Loopback Command Set......................................................................................................40
Table 14. Addressable 1, 2, 5 (A1LB, A2LB, A5LB) Repeater Loopback Commands................................44
Table 15. Addressable 3 and 4 (A3LB and A4LB) Repeater Loopback Commands.....................................45
Table 16. HLU-231 List 7E Power Parameters with HDU-451 Doublers, List 1, 2, 3, & 4, and M/M.........52
Table 17. HLU-231 List 7E/HDU-451 List 1, 2, & 3 Deployment Guidelines .............................................52
Table 18. HiGain Doubler Deployment Matrix ............................................................................................54
Table 19. Bar Code Label and Configuration Number Descriptions.............................................................57

List of Tables 150-231-175-01, Revision 01
x September 23, 1998 HLU-231 List 7E