PairGain HLU-319 User manual

HIGAIN LINE UNIT
PAIRGAIN TECHNOLOGIES, INC.
ENGINEERING SERVICES TECHNICAL PRACTICE
™150-319-125-01S¨
SECTION 150-319-125-01
Model List Number Part Number CLEI Code
HLU-319 2E 150-1140-25 T1L1BH43AA
S
E
L
R
C
V
X
M
T
M
O
D
E
M
A
R
G
I
N
(dB)
SETUP
STATUS
R
S
HLU-319
HG HDIAIN
L
2
3
2
B
R
G
L
I
N
E
B
R
G
L
I
N
E

150-319-125-01, Revision 01
ii September 15, 1998 HLU-319 List 2E
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 toPairGain 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 15, 1998 Initial Release

150-319-125-01, Revision 01
HLU-319 List 2E September 15, 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.
ABBREVIATIONS
Notes contain information about special circumstances.
Cautions indicate the possibility of equipment damage or the possibility of personal injury.
2B1Q 2Binary1Quaternary
AIS Alarm Indication Signal
AMI Alternate Mark Inversion
B8ZS Bi-polar with 8-zero Substitution
BPV Bipolar Violation
CI Customer Interface
CO Central Office
CLOC Customer Local Loopback
CPE Customer Premises Equipment
CRC Cyclic Redundancy Check.
CSA Carrier Service Area
DCE Data Circuit-Terminating Equipment
DDS Digital Data Service
DL Data Link
DS1 Digital Service, Level 1
DSX-1 Digital System Cross-Connect frame.
ES Errored Seconds
ESF Extended Super Frame
ESF DL Extended Super Frame Data Link
HCDS High Capacity Digital Service
HDSL High-bit-rate Digital Subscriber Line
HDU HiGain Doubler Unit

150-319-125-01, Revision 01
iv September 15, 1998 HLU-319 List 2E
HLU HiGain Line Unit
HRU HiGain Remote Unit
LOS Loss of Signal
LOSW Loss of Sync Word
NEBS Network Equipment Building System
NI Network Interface
NID Network Interface Device
NMA Network Management Administration
NREM Network Remote Loopback
POTS Plain Old Telephone System
PWRF Power Feed
SAIS SmartJack AIS
SF Super Frame
S/N Signal-to-Noise
SPLB Special Loopback
STS Span Terminating Shelf
TSGR Transport System Generic Requirements
UAS Unavailable Seconds
ZBTSI Zero Byte Time Slot Interchange

150-319-125-01, Revision 01 Table of Contents
HLU-319 List 2E September 15, 1998 v
TABLE OF CONTENTS
Product Overview_____________________________________________________________________ 1
HLU-319 Features..............................................................................................................................1
Applications .......................................................................................................................................2
Product Description ___________________________________________________________________ 3
Front Panel.........................................................................................................................................3
Status LED...........................................................................................................................4
Front Panel Display.............................................................................................................5
HLU-319 Card-Edge Connectors.......................................................................................................8
Network Management Control Bus.....................................................................................8
Fuse Alarm ..........................................................................................................................8
System Alarm Output Pin....................................................................................................9
Installation__________________________________________________________________________ 10
Provisioning the HLU-319_____________________________________________________________ 11
Setting Options Through SEL and MODE......................................................................................11
Factory Default Values......................................................................................................11
Displaying System Inventory ............................................................................................12
Connecting to a Maintenance Terminal...........................................................................................12
Maintenance ________________________________________________________________________ 13
Navigating the Maintenance Terminal Screens ...............................................................................13
System Spans.....................................................................................................................14
Navigation Keys ................................................................................................................14
Selecting an Option ...........................................................................................................14
Initializing the Maintenance Terminal Screens ...............................................................................15
Maintenance Terminal Main Menu..................................................................................................15
View Span Status .............................................................................................................................16
Span Status Screen: Non-Doubler Applications................................................................16
Span Status Screen: Doubler Applications........................................................................16
Set Clock..........................................................................................................................................18
Set Time.............................................................................................................................19
Set Date..............................................................................................................................19
Update the HRU Time and Date........................................................................................19

Table of Contents 150-319-125-01, Revision 01
vi September 15, 1998 HLU-319 List 2E
System Settings ............................................................................................................................... 20
DS0 Blocking Option........................................................................................................ 20
DS1 Line Code Option...................................................................................................... 21
Margin Alarm Threshold .................................................................................................. 21
HAIS Selections................................................................................................................ 22
System Settings Screen Options ....................................................................................... 22
Circuit ID Option............................................................................................................................. 26
Loopback Menu............................................................................................................................... 26
Loopback Menu: No Doubler........................................................................................... 27
Loopback Menu: One Doubler ......................................................................................... 27
Initiating a Loopback ........................................................................................................ 28
Disable Loopbacks............................................................................................................ 28
View Performance Data .................................................................................................................. 29
Performance Data Screen: No Doubler............................................................................. 30
Performance Data Screen: With Doubler.......................................................................... 31
View Performance History.............................................................................................................. 32
The 7 Day History Screen: No Doubler............................................................................ 32
The 7 Day History Screen: With Doubler......................................................................... 33
View Alarm History........................................................................................................................ 33
Alarm History Screen: No Doubler .................................................................................. 36
Alarm History Screen: With Doubler ............................................................................... 37
System Alarms_______________________________________________________________________ 38
Retiring System Alarms.................................................................................................... 38
Loopback Operation__________________________________________________________________ 39
SmartJack (SMJK) Loopback.......................................................................................................... 39
Generic Loopback Code (GNLB) ................................................................................................... 39
A1LB Loopback Code..................................................................................................................... 39
Addressable Repeater Loopback Functions .................................................................................... 40
Initiating Manual Loopback Sessions .............................................................................................41
Loopback Test Procedures .............................................................................................................. 41
GNLB Loopback Test Procedures...................................................................................................44
HLU-319 A1LB, A2LB and A5LB Test Procedures...................................................................... 45
A3LB and A4LB Test Procedures...................................................................................................47
Specifications________________________________________________________________________ 48

150-319-125-01, Revision 01 Table of Contents
HLU-319 List 2E September 15, 1998 vii
Functional Operation_________________________________________________________________ 50
HDSL Line Voltage...........................................................................................................51
Ground Fault Detect ..........................................................................................................52
Power Consumption.........................................................................................................................52
Power Consumption: Without Doublers............................................................................52
Maximum Power Dissipation:.............................................................................52
Maximum Power Consumption: .........................................................................52
Maximum Current Drain:....................................................................................52
Power Consumption: With Doublers.................................................................................53
Compatibility _______________________________________________________________________ 54
T1 Repeater Shelves and Related Equipment..................................................................................54
Doubler Deployment........................................................................................................................55
Product Support _____________________________________________________________________ 56
Technical Support............................................................................................................................56
Warranty...........................................................................................................................................56
FCC Compliance..............................................................................................................................57
Modifications...................................................................................................................................57
Standards Compliance......................................................................................................................57

Table of Contents 150-319-125-01, Revision 01
viii September 15, 1998 HLU-319 List 2E

150-319-125-01, Revision 01 List of Figures
HLU-319 List 2E September 15, 1998 ix
LIST OF FIGURES
Figure 1. HLU-319 Front Panel........................................................................................................................3
Figure 2. HLU-319 Card-Edge Connectors......................................................................................................8
Figure 3. Installing the HLU-319 into a Shelf................................................................................................10
Figure 4. DB-9 RS-232 I/O Pinouts...............................................................................................................13
Figure 5. System Spans..................................................................................................................................14
Figure 6. Maintenance Terminal Main Menu.................................................................................................15
Figure 7. Span Status Screen: No Doubler.....................................................................................................17
Figure 8. Span 1 Status Screen: With Doubler...............................................................................................17
Figure 9. Span 2 Status Screen: One Doubler................................................................................................18
Figure 10. Set Clock Menu.............................................................................................................................18
Figure 11. System Settings Menu...................................................................................................................20
Figure 12. Loopback Menu: No Doubler.......................................................................................................27
Figure 13. Loopback Menu: One Doubler .....................................................................................................27
Figure 14. NLOC Loopback Mode in the Maintenance Terminal Main Menu .............................................28
Figure 15. Performance Data Screen: No Doublers.......................................................................................30
Figure 16. Span 2 Performance Data Screen..................................................................................................31
Figure 17. 7 Day History Screen for Span 1: No Doubler .............................................................................32
Figure 18. 7 Day History Screen Span 1: With Doubler................................................................................33
Figure 19. Alarm History Screen for Span 1: No Doublers...........................................................................36
Figure 20. Alarm History Screen for Span 1: With Doublers........................................................................37
Figure 21. HLU-319 Non-Doubler Loopback Configurations.......................................................................42
Figure 22. HLU-319 Doubler Loopback Configurations...............................................................................43
Figure 23. HLU-319 Block Diagram..............................................................................................................50

List of Tables 150-319-125-01, Revision 01
x September 15, 1998 HLU-319 List 2E
LIST OF TABLES
Table 1. HDSL Loss Over Cables.................................................................................................................................. 2
Table 2. Front Panel Components.................................................................................................................................. 4
Table 3. Status LED Descriptions.................................................................................................................................. 4
Table 4. HLU-319 Front Panel Display Messages ....................................................................................................... 5
Table 5. Navigational Keys on the Maintenance Terminal.......................................................................................... 14
Table 6. Maintenance Terminal Screens...................................................................................................................... 16
Table 7. HLU-319 System Options ............................................................................................................................. 22
Table 8. Errored and Unavailable Seconds Definitions............................................................................................... 29
Table 9. HLU-319 Alarm History Messages .............................................................................................................. 34
Table 10. System Alarms ............................................................................................................................................. 38
Table 11. Addressable 1 (A1LB) Repeater Loopback Commands.............................................................................. 46
Table 12. Addressable 3 (A3LB) Repeater Loopback Commands.............................................................................. 47
Table 13. HLU-319 Power Parameters With HDU-451.............................................................................................. 53