PairGain UTU-722 User manual

PAIRGAIN GLOBAL ACCESS
HIGAIN-ETSI RS
RATE SELECTABLE HDSL UNITS
QUICK INSTALLATION GUIDE
PAIRGAIN TECHNOLOGIES, INC.
ENGINEERING SERVICES
SECTION 700-722-900-02
Model List Number Part Number
UTU-722
ETU-772 1 1150-1422-22 150-1432-22

700-722-900-02, Revision 02
ii June 21, 1999 UTU-722 and ETU-772 List 1
Revision History of This Guide
©Copyright 1999 PairGain Technologies, Inc.
PairGain and HiGain are registered trademarks and HiGain-ETSI is a trademark 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 March 23, 1999 Initial release
02 June 21, 1999 Added pinouts for ETU-772 HDSL line and console
port connectors.

700-722-900-02, Revision 02 Using This Guide
UTU-722 and ETU-772 List 1 June 21, 1999 iii
USING THIS GUIDE
Three types of messages, identified by icons, appear in the text.
DOCUMENTATION
The complete technical practice for the units described in this guide,
HiGain-ETSI RS Rate Selectable HDSL Line and Desktop Units, section
700-722-100-xx, can be downloaded from the Customer Site portion of the
PairGain 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 comments on this PairGain document, send an email to
technical_publicatio[email protected]. Type the product name and the
section number of the document in the subject area of the email message.
Notes contain information about special circumstances.
Cautions indicate the possibility of equipment damage or the
possibility of personal injury.
Warnungszeichen deuten darauf hin, dass Schaden am Gerät
oder eine mögliche Körperverletzung riskiert wird, falls die
Warnungen nicht beachtet werden.
The ESD Susceptibility symbol indicates that a device or
assembly is susceptible to damage from electrostatic
discharge.

700-722-900-02, Revision 02
iv June 21, 1999 UTU-722 and ETU-772 List 1

700-722-900-02, Revision 02 Table of Contents
UTU-722 and ETU-772 List 1 June 21, 1999 v
TABLE OF CONTENTS
Overview _______________________________________________ 1
Rate Selectable HDSL ............................................................. 1
UTU-722 Line Unit.................................................................. 1
ETU-772 Desktop Unit............................................................ 2
Transmission Ranges ............................................................... 2
Compatibility ........................................................................... 3
Shelves and Enclosures for UTU-722.......................3
Connector Adapters for ETU-772 .............................3
Front Panels ............................................................................. 4
ETU-772 Rear Panel................................................................ 7
Installation _____________________________________________ 8
Inspection................................................................................. 8
Safety ....................................................................................... 8
Line Unit Installation............................................................... 9
Desktop Unit Installation......................................................... 9
HDSL Startup and Synchronization....................................... 11
System Configuration ___________________________________ 12
Maintenance Terminal Connection........................................ 12
Logging On............................................................................ 13
Navigating Menus.................................................................. 14
System Settings...................................................................... 15
LTU and NTU Interface Settings...........................................16

Table of Contents 700-722-900-02, Revision 02
vi June 21, 1999 UTU-722 and ETU-772 List 1
Viewing Status __________________________________________17
Main Console Screen..............................................................17
Monitor Screens .....................................................................19
Monitor LTU and NTU Interface Screens...............19
Monitor HDSL Span Screen....................................20
PairGain Regional Sales Offices ___________________________21
Documentation _________________________________________22
Technical Support _______________________________________22
Equipment Repair _______________________________________23
Warranty ______________________________________________23
Compliance ____________________________________________24

700-722-900-02, Revision 02 Overview
UTU-722 and ETU-772 List 1 June 21, 1999 1
OVERVIEW
ThisguidecontainsinstallationinformationforthePairGain®HiGain-ETSI™
UTU-722 List 1 and ETU-772 List 1 Rate Selectable (RS) line and desktop
units.
RATE SELECTABLE HDSL
HiGain-ETSI RS is a single pair High-bit-rate Digital Subscriber Line
(HDSL) solution that offers extended reach capabilities through the use of
industry-leading multi-rate DSL technology. The UTU-722 and ETU-772
deployHDSLinnetworksusinga singlepairofcopperwirerunningat speeds
between 64 kbps and 256 kbps. The HDSL line rates are either menu selected
in time slot increments of 64 kbps or derived automatically from the Terminal
Transmission (TT) clock received at the Nx64k serial data port from the
Network Data Terminal Equipment (DTE). Transmission ranges vary
according to the rate selected. Depending on noise environment, ranges of up
to 8.5 km (5.3 miles) are possible at the lowest-selectable HDSL line rates
(64 and 128 kbps).
UTU-722 LINE UNIT
The UTU-722 can be configured as a Line Termination Unit (LTU) or
Network Termination Unit (NTU). The default configuration is NTU.
When configured as an LTU, the UTU-722 serves as the Exchange Office
side of a repeaterless, HDSL transmission system. The LTU-configured unit
connects to an NTU-configured unit (UTU-722 or ETU-772) over one
twisted-pair of copper wire, completing the HDSL transmission system.
The UTU-722 has an Nx64k serial data interface with user-selectable
protocols that include V.35, V.36, X.21, and RS-530 (RS-449). The
UTU-722 accepts the DTE payload at its Nx64k serial data port and
transports the data to the remote unit at the selected HDSL rate. TheUTU-722
requires -36 to -72 Vdc from a local power supply or an enclosure’s
AC-to-DC power supply; it does not supply power to other HDSL units.
HiGain-ETSI RS units are not backward compatible with
standard HDSL or management unit firmware. The installed
firmware must be that designed for rate selectable units.
HiGain-ETSI RS units must have the same payload rates
available. An LTU set for a rate of 768 kbps will not function
with an NTU whose maximum available rate is 256 kbps.

Overview 700-722-900-02, Revision 02
2 June 21, 1999 UTU-722 and ETU-772 List 1
ETU-772 DESKTOP UNIT
The ETU-772 is housed in a plastic enclosure with interface and power
connectors for use as an integrated desktop unit. All functions of the
ETU-772, with exception of power requirements, are identical to the
UTU-722. The ETU-772 requires a source of 100 to 240 volt, 50 or 60 Hz,
AC power.
TRANSMISSION RANGES
Transmission ranges assume the presence of noise according to the ETSI
modeldescribedin TS101135.TheexpectedBitError Rate(BER)underthis
model is 10-7. The transmission ranges in such a noise environment at the
variousHDSL line rates over one twisted-pair of 0.4 mm and 0.51 mm copper
wire are listed below.
‘
Transmission Ranges with ETSI Noise
Wire Size and Transmission Range (with ETSI Noise)
HDSL Line
Rate (kbps) (a)
0.4 mm (26 AWG)
Single Twisted-Pair
Copper Wire
0.51 mm (24 AWG)
Single Twisted-Pair
Copper Wire
128 5.0 km (16,404 ft.) 6.3 km (20,669 ft.) (b)
256 4.1 km (13,451 ft.) 5.1 km (16,732 ft.)
(a) A selected HDSL line rate of 64 kbps is transmitted at 128 kbps.
(b) The maximum no-noise transmission range is approximately 8.5 km.

700-722-900-02, Revision 02 Overview
UTU-722 and ETU-772 List 1 June 21, 1999 3
COMPATIBILITY
The UTU-722 and ETU-772 are compatible with the following PairGain
HiGain-ETSI products.
Shelves and Enclosures for UTU-722
•EMS-830 Exchange Office Management Shelf, rear connector access
(part number 150-1400-01).
•EMS-831 Exchange Office Management Shelf, front connector access
(part number 150-1401-01).
•EMS-832 Exchange Office Management Shelf, front connector access
(part number 150-1402-01).
•ERE-810 Single-Slot Remote Enclosure.
(part number 150-1410-01).
•ERE-811 Single-Slot Remote Enclosure with internal AC power supply
(part number 150-1411-01).
•ERE-821 Dual-Slot Remote Enclosure with internal AC power supply
(part number 150-1416-01).
•ERE-826 Single-Slot Remote Enclosure
(part number 150-1412-01).
Connector Adapters for ETU-772
•ECA-800 D25M to M34F connector adapter for V.35
(part number 150-1470-01).
•ECA-801 D25M to D15F connector adapter for X.21
(part number 150-1471-01).
•ECA-802 DB9M to RJ-45 connector adapter for HDSL
(part number 150-1472-01).
•ECA-804 DB9M to 4-position terminal block connector for HDSL
(part number 150-1474-01).
•ECA-807 DB25M to DB37F connector adapter for RS-449
(part number 150-1477-01).

Overview 700-722-900-02, Revision 02
4 June 21, 1999 UTU-722 and ETU-772 List 1
FRONT PANELS
The components on the UTU-722 and ETU-772 front panels are shown
below. Their functions are described on page 5 and page 6.