PairGain HLU-319 User manual

HIGAIN LINE UNIT
QUICK INSTALLATION GUIDE
.
PAIRGAIN TECHNOLOGIES, INC.
ENGINEERING SERVICES
™350-319-153-01(¨
SECTION 350-319-153-01
Model List Number Part Number CLEI Code
HLU-319 5C 150-1140-53 T1L2B27AAA

Using This Manual 350-319-153-01, Revision 01
ii April 30, 1999 HLU-319 List 5C
Revision History of This Practice
USING THIS MANUAL
Two types of messages, identified by icons, appear in the text.
©Copyright 1999 PairGain Technologies, Inc.
PairGain and HiGain are registered trademarks of PairGain Technologies, Inc.
Information containedin thisdocumentis company private to PairGainTechnologies, 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 April 30, 1999 Initial Release
Notes contain information about special circumstances.
Cautions indicate the possibility of equipment damage or the
possibility of personal injury.

350-319-153-01, Revision 01 Table of Contents
HLU-319 List 5C April 30, 1999 iii
TABLE OF CONTENTS
Overview _______________________________________________ 1
Product Description ................................................................. 1
Compatibility ........................................................................... 4
Installation _____________________________________________ 5
Provisioning ____________________________________________ 6
Navigation Keys....................................................................... 6
Selecting an Option.................................................................. 7
Loopbacks ______________________________________________ 8
Specifications ___________________________________________ 9
Product Support________________________________________ 11
Technical Support.................................................................. 11
BBS........................................................................................ 11
World Wide Web................................................................... 12
Documentation....................................................................... 12
Returns................................................................................... 12
Abbreviations __________________________________________ 14
Certification and Warranty_______________________________ 15

List of Figures 350-319-153-01, Revision 01
iv April 30, 1999 HLU-319 List 5C
LIST OF FIGURES
Figure 1. HLU-319 List 5C Front Panel.................................................2
Figure 2. Installing the HLU-319 ...........................................................5
Figure 3. Loopback Functions with Doublers ........................................8
Figure 4. HLU-319 Card-Edge Connector Pinouts ..............................10
LIST OF TABLES
Table 1. Front Panel Features.................................................................3
Table 2. Status LED................................................................................3
Table 3. Navigational Keys on the Maintenance Terminal....................6

350-319-153-01, Revision 01 Overview
HLU-319 List 5C April 30, 1999 1
OVERVIEW
The PairGain®HiGain®Model HLU-319 List 5C is the Central Office (CO)
side of a repeaterless T1 transmission system.It is used in conjunction with a
HiGain Remote Unit (HRU) or HiGain Doubler Unit(s) (HDU) to provide a
complete HiGain High-bit-rate Digital Subscriber Line (HDSL) system.
The CSA includes loops up to 12,000 feet (3658m) of 24 AWG or 9,000 feet
(2743m)of 26AWG, including bridged taps. The HiGain system uses HDSL
transmission technology as recommended by Bellcore TA-TSY-001210.The
HiGain system complies with GR-63-CORE, TR-TSY-000499, and
GR-1089-CORE.
The HLU-319 List 5C supports Digital Data Service (DDS) loopback
commands and has special features as described in the technical practice for
the unit (see “Documentation” on page 12).
PRODUCT DESCRIPTION
The HLU-319 List 5C front panel features are shown in Figure 1 on page 2
and described in Table 1 on page 3.

350-319-153-01, Revision 01 Overview
HLU-319 List 5C April 30, 1999 2
Figure 1. HLU-319 List 5C Front Panel

350-319-153-01, Revision 01 Overview
HLU-319 List 5C April 30, 1999 3
Table 2 describes the status LED.
Table 1. Front Panel Features
Front Panel Feature Function
List number Identifies a specific version of the HLU-319.
Status LED See Table 2 for status descriptions.
DSX-1 access jacks
Line Provides splitting jack access to and from the HDSL line at the
DSX-1 interface. Breaks the Transmit (XMT) and Receive
(RCV) paths to permit test signal insertion and retrieval.
BRG Provides non-intrusive bridging jack access to (XMT) and from
(RCV) the HDSL span at the DSX-1 interface. Allows the two T1
payloads to be monitored.
CLEI and bar code labels
(on the inside of the
handle)
Provides the human-readable Common Language Equipment
Identifier (CLEI) code number and the Equipment Catalog Item
(ECI) bar code number.
Configuration number
(on the outside of the
handle)
Contains either a five or six-digit warranty configuration
number or a stand-alone two or three-digit configuration
number as follows:
Digit 1 - Last digit of shipment year
Digits 2 and 3 - Shipment month
Digits 4, 5, and 6 - Configuration number
The configuration number can also be found on a small bar
label that also contains the Julian date code and part number.
This gummed label may be attached to the PC board or to the
front panel.
Table 2. Status LED
LED Status Description
Green Normal operation
Flashing green HDSL acquisition
Red Fuse Alarm
Flashing red System alarm
Yellow Self Test is in process or an HLU Customer Remote Loopback (CREM)
or a Network Local Loopback (NLOC) is in effect.
Flashing yellow HLU is in an Armed state

350-319-153-01, Revision 01 Overview
HLU-319 List 5C April 30, 1999 4
COMPATIBILITY
The HLU-319 List 5C is compatible with the following T1 repeater shelves
and associated equipment:
•PairGain HMS-357 Wideband 3190 (28-slot, 23-inch shelf)
•PairGain HMS-317 (28-slot, 23-inch shelf)
•PairGain HMS-318 (22-slot, 19-inch shelf)
•PairGain HHS-319 (3-slot, 19-inch horizontal shelf)
•PairGain HMS-308 (8-slot remote enclosure)
•Charles Ind. #3192 (28-slot connectorized)
•Charles Ind. #3192-9F Alarm Card
•Charles Ind. #3192-WR (28-slot wire wrap)
•Charles Ind. #343-00 (12-slot to 14-slot wire wrap)
•Charles Ind. #319-02 (22-slot connectorized)
•Charles Ind. #319-04 (22-slot wire wrap)
•Charles Ind. #340-00 (9-slot to 11-slot wire wrap)
•Larus #1185 (28-slot connectorized)
•Larus #1184 Alarm Card
The Charles Ind. 343-00 and 340-00 shelves do not support
the HLU-319 System Alarm output on pin H. Also, if slots 1
and 2 of these shelves are wired for the 3408 Fault Locate
unit, they must be rewired to accept the HLU-319.

350-319-153-01, Revision 01 Installation
HLU-319 List 5C April 30, 1999 5
INSTALLATION
Figure 2. Installing the HLU-319
1Slide the HLU-319 into the card guides for the desired slot, then push the
unit in until it touches the backplane card-edge connector.
2Place your thumbs on the HLU-319 front panel and push the HLU into
the card guides until the card is properly seated.
3Configure the HLU according to the instructions in “Provisioning”.
Upon receipt of the equipment, 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 Technologies.

350-319-153-01, Revision 01 Provisioning
HLU-319 List 5C April 30, 1999 6
PROVISIONING
The HLU-319 List 5C contains Non-volatile Random Access Memory
(NVRAM) which stores the system option settings. System settings are
retained if shelf power is lost or if the HLU-319 is unplugged. [No Dual
In-line Package (DIP) switch or jumper settings are required.]
NAVIGATION KEYS
Table 3 lists keys you can use on the maintenance terminal to navigate within
the Maintenance Terminal screens.
The maintenance terminal screens cannot be accessed
through the HLU-319 List 5C, as this model does not provide
a craft port. View these maintenance terminal screens
through the HiGain Management Unit (HMU) or OS port
located on the rear of the HiGain shelf or WBS-3190.
If using the Microsoft Windows terminal emulation program,
deselect
Show Scroll Bars and Use Function, Arrow, and Ctrl
Keys for Windows
from the Settings Terminal Preference
menu.
Table 3. Navigational Keys on the Maintenance Terminal
Key Function
Updates a report.
Clears a report.
Selects the next Span Status screen, or , , , , or
will access span directly (for doubler applications).
Selects the previous page of a report.
Selects the next page of a report.
Exits the current screen.
8
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64567 8
3
1
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350-319-153-01, Revision 01 Provisioning
HLU-319 List 5C April 30, 1999 7
SELECTING AN OPTION
To select an option within the Maintenance Terminal screens, you can:
•Press the key indicated to the left of the selection.
•Press the letter in parenthesis of the parameter to be changed.
An invalid entry produces the following message and identifies the name of
a field where the invalid entry occurred:
> error
This happens only for margin alarm threshold or DSO blocking.
For complete details on the HLU Maintenance Terminal
screens, refer to the technical practice for the
HLU-319 List 5C (see “Documentation” on page 12.)

350-319-153-01, Revision 01 Loopbacks
HLU-319 List 5C April 30, 1999 8
LOOPBACKS
Figure 3 shows loopback functions with doublers.
Figure 3. Loopback Functions with Doublers

350-319-153-01, Revision 01 Specifications
HLU-319 List 5C April 30, 1999 9
SPECIFICATIONS
Maximum Power Consumption and Heat Dissipation
The maximum power consumption and heat dissipation varies with the type
of remote and doubler units in the system as well as the CPE power setting.
See the “HLU-319 List 5C Technical Practice” (150-319-153-xx) for the
maximum power consumption and heat dissipation for your system.
(See “Documentation” on page 12 of this quick installation guide.)
Mounting
Synchronous Transport Signal (STS) high-density slot
Dimensions
Height: 4.75 in. (12.1 cm)
Width: 0.625 in (1.59 cm)
Depth: 10 in. (25.4 cm)
Weight: 8 oz. (.23 kg.)

350-319-153-01, Revision 01 Specifications
HLU-319 List 5C April 30, 1999 10
The HLU-319 card-edge connector pinouts are shown in Figure 4. Active
pins are shown in black.
Figure 4. HLU-319 Card-Edge Connector Pinouts

350-319-153-01, Revision 01 Product Support
HLU-319 List 5C April 30, 1999 11
PRODUCT SUPPORT
PairGain Customer Service Group provides expert pre-sales and post-sales
support and training for all its products.
TECHNICAL SUPPORT
PairGain Technical Assistance is available 24 hours a day, 7 days a week by
contacting PairGain Customer Service Engineering group at:
During normal business hours (8:00 AM to 5:00 PM, Pacific Time, Monday
through Friday, excluding holidays), technical assistance calls are normally
answered directly by a Customer Service Engineer. At other times, a request
for technical assistance is handled by an on-duty Customer Service Engineer
through a callback process. This process normally results in a callback within
30 minutes of initiating the request.
BBS
In addition, PairGain maintains a computer bulletin board system for
obtaining current information on PairGain products, product troubleshooting
tips and aids, accessing helpful utilities, and for posting requests or questions.
This system is available 24 hours a day by calling [phone].
Transmission speeds up to 28.8 kbps are supported with a character format of
8-N-1.
Telephone:
[phone] or [phone]
The 800 telephne support line is toll-free in the
U.S. and Canada.
Fax: [phone]
Email [e-mail]

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HLU-319 List 5C April 30, 1999 12
WORLD WIDE WEB
PairGain product and company information can be found at
http://www.pairgain.com using any Web browser.
DOCUMENTATION
The HLU-319 List 5C has a complete technical practice, Section number
150-319-155-xx, that you can download from the PairGain Technical
Manuals Web page at: www.pairgain.com. A password is required. If you do
not have a password, contact your PairGain sales representative.
If you have any comments on any PairGain documentation, send e-mail to
[e-mail]. Type the product name and the
section number of the document in the subject area of the email message.
RETURNS
To return equipment to PairGain:
1Locate the number of the purchase order under which the equipment was
purchased. You will need to provide this number to PairGain Customer
Service to obtain a return authorization.
2Call or write PairGain Customer Service to ask for a Return Material
Authorization (RMA) number and any additional instructions. Use the
telephone or fax number listed below:
•Telephone: [phone]
•Fax: [phone]
3Include the following information, in writing, along with the equipment
you are returning:
•Company name, address, and the name of a person PairGain can
contact regarding this equipment.
•The purchase order number provided to Customer Service when the
RMA number was requested.

350-319-153-01, Revision 01 Product Support
HLU-319 List 5C April 30, 1999 13
•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, for example:
The equipment needs an ECO/ECN upgrade.
The equipment is defective.
4Pack the equipment in a shipping carton.
5Write PairGain’s address and the RMA number you received from
Customer Service clearly on the outside of the carton:
PairGain Technologies, Inc.
14352 Franklin Ave.
Tustin, CA 92780-7013
Attention: CRF RMA (Number)

350-319-153-01, Revision 01 Abbreviations
HLU-319 List 5C April 30, 1999 14
ABBREVIATIONS
CI Customer Interface HMU HiGain Management Unit
CLEI Common Language Equipment
Interface HRE HiGain Remote Enclosure
CO Central Office HRU HiGain Remote Unit
CREM Customer Remote Loopback LED Light Emitting Diode
DDS Digital Data Service NLOC Network Local Loopback
DIP Document Image Processing NVRAM Non-volatile Random Access
Memory
DSX-1 DS-1 Cross-connect frame RCV Receive
ECI Equipment Catalog Item RMA Return Material Authorization
HDSL High-bit-rate Digital Subscriber
Line STS Synchronous Transport System
HDU HiGain Doubler Unit XMT Transmit
HLU HiGain Line Unit ZBTS Zero Byte Timeslot
HMS HiGain Management Shelf

CERTIFICATION AND WARRANTY
FCC COMPLIANCE
This unit complies with the limits for Class A digital devices pursuant to Part 15 of the FCC rules.
These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the instruction manual, can
cause harmful interference to radio communications. Operation of this equipment in a residential area
is likely to cause harmful interference, in which case the user will be required to correct the
interference at his own expense.
Refer to the installation section of this manual for guidance on: Cabling, correct connections,
grounding.
UL LISTING
The HLU-319 List 5C is listed with the Underwriter Laboratory.
Use caution when installing or modifying telephone lines. Dangerous voltages may be present. Do not
install telephone wiring during a lightning storm. 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.
WARRANTY
PairGain Technologies warrants this product to be free of defects and to be fully functional for a period
of 60 month from the date of original shipment, given correct customer installation and regular
maintenance. PairGain will repair or replace at Pairgain’s option any unit without cost during this
period if the unit is found to be defective for any reason other than abuse or incorrect use or installation.
Do not try to repair the unit. If it fails, replace it with another unit and return the faulty unit to PairGain
for repair. Any modifications of the unit by anyone other than an authorized PairGain representative
voids the warranty.
If a unit needs repair, call PairGain for a Return Material Authorization (RMA) number and return the
defective unit, freight prepaid, along with a brief description of the problem, to:
PairGain Technologies, Inc.
14352 Franklin Avenue
Tustin, CA 92780
ATTN: Repair and Return Dept.
[phone]
PairGain continues torepair faultymodules beyond the warranty program at a nominal charge.Contact
your PairGain sales representative for details and pricing.
MODIFICATIONS
Any changes or modifications made to this device that are not expressly approved by PairGain
Technologies, Inc. may void the user's warranty.
All wiring external to the products should follow the provisions of the current edition of the National
Electrical Code.

Corporate Office
14402 Franklin Avenue
Tustin, CA 92780
Tel: [phone]
Fax: [phone]
For Technical Assistance:
[phone]