ADC HiGain HLU-200 User manual

HiGain
HiGain
USER MANUAL
AHT1U
HLU200 L1E
LOOP
FAIL
HDSL
R
S
2
3
2
HLU-200 List 1E Line Unit
Product Catalog: 350-200-115-02
CLEI: SLILNS5AAA

350-200-115-02, Issue 2
ii September 25, 1998 HLU-200 List 1E
Revision History of This Manual
To order copies of this document, use document catalog number
350-200-115-02.
Copyright
September 1998
© 1998 ADC DSL Systems, Inc. All rights reserved.
Trademark Information
ADC is a registered trademark of ADC Telecommunications, Inc. HiGain is a
registered trademark of ADC DSL Systems, Inc. No right, license, or interest to such
trademarks is granted hereunder,and you agree thatno suchright, license, orinterest
shall be asserted by you with respect to such trademark.
Other product names mentioned in this practice are used for identification purposes
only and may be trademarks or registered trademarks of their respective companies.
Disclaimer of Liability
Information contained in this documentis company private to ADC DSL Systems, Inc.,
and shall not be modified, used, copied, reproduced or disclosed in whole or in part
without the written consent of ADC.
Contents herein are current as of the date of publication. ADC reserves the right to
change the contents without prior notice. In no event shall ADC be liable for any
damages resulting from loss of data, loss of use, or loss of profits, and ADC further
disclaims any and all liability for indirect, incidental, special, consequential or other
similar damages. This disclaimer of liability applies to all products, publications and
services during and after the warranty period.
Issue Release Date Revisions Made
01 September 25, 1998 Initial Release
02 April 9, 2002 ADC Rebranding

350-200-115-02, Issue 2 Using This Manual
HLU-200 List 1E September 25, 1998 iii
USING THIS MANUAL
Three types of messages, identified by icons, appear in text.
UNPACK AND INSPECT YOUR SHIPMENT
Upon receipt of the equipment:
•Unpack each container and inspect the contents for signs of damage. If
theequipmenthasbeendamagedin transit,immediatelyreportthe extent
of damage to thetransportation company and to ADC DSL Systems,Inc.
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 ADC DSL
Systems, Inc. as described in Product Support. 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 personal injury or
equipment damage.
The Electrostatic Discharge (ESD) symbol indicates that a
deviceorassemblyissusceptibleto damagefromelectrostatic
discharge.

Unpack and Inspect Your Shipment 350-200-115-02, Issue 2
iv September 25, 1998 HLU-200 List 1E

350-200-115-02, Issue 2 Table of Contents
HLU-200 List 1E September 25, 1998 v
TABLE OF CONTENTS
Overview _______________________________________________ 1
Features.................................................................................... 1
Compatibility ........................................................................... 4
Installation _____________________________________________ 5
Installing the HLU-200 List 1E ............................................... 5
Card-Edge Connector............................................................... 6
Provisioning ____________________________________________ 7
Line Circuit Settings Option.................................................... 7
Using the Maintenance Terminal ___________________________ 8
Connecting to the Craft Port .................................................... 8
System Settings........................................................................ 9
Alarms ________________________________________________ 12
Diagnostic Messages.............................................................. 13
Loopbacks.............................................................................. 15
Specifications __________________________________________ 17
Documentation _________________________________________ 17
Product Support________________________________________ 18
Limited Warranty................................................................... 19
FCC Compliance.................................................................... 19

Table of Contents 350-200-115-02, Issue 2
vi September 25, 1998 HLU-200 List 1E

350-200-115-02, Issue 2 Overview
HLU-200 List 1E September 25, 1998 1
OVERVIEW
The ADC®HiGain®HLU-200 List 1E is an asynchronous DS1 interfaceunit
that plugs into the Channel Bank Assembly (CBA) of a DSC
LITESPAN-2000 optical loop carrier system to provide an HDSL interface.
The HLU-200 List 1E is essentially an AT1U line unit with its T1 line
interface circuit replaced by an HDSL line interface circuit. When used in
conjunction with a HiGain Remote Unit (HRU), the system provides 1.544
Mbps transmission on two unconditioned copper pairs over the full Carrier
Service Area (CSA) range. The CSA includes loops up to 12,000 feet of
AWG 24 wire or 9,000 feet of AWG 26 wire, including bridged taps. This
CSA range can be doubled with a HiGain Doubler Unit (HDU) and tripled
with two doublers. The HiGain system uses HDSL (High-bit rate Digital
Subscriber Line) transmission technology as recommended by Bellcore
TA-TSY-001210. HiGain complies with TRY-TSY-000063 (Network
Equipment Building System (NEBS) Generic Equipment requirements) and
TR-TSY-000499 (Transport System Generic Requirements - TSGR)
common requirements. Ground faults occurring at any point along any span
on any conductor are immediately detected and the HiGain circuit shuts
down. The line unit then applies power periodically to the first span to detect
the ground fault condition. This power cycling and ground fault protection
continues as long as the fault condition exits.
The HLU-200 List 1E is compatible with the DSC LITESPAN 2000 Channel
Bank Version 7.1x and 8.1x.
FEATURES
Figure 1 illustrates the HLU-200List 1E frontpanel. Table 1 defines the front
panel components.

Overview 350-200-115-02, Issue 2
2 September 25, 1998 HLU-200 List 1E
Figure 1. HLU-200 List 1E Front Panel
HLU200 L1E
LOOP
Status indicators
Craft port
Retaining latch
FAIL
HDSL
R
S
2
3
2
AHT1U

350-200-115-02, Issue 2 Overview
HLU-200 List 1E September 25, 1998 3
Table 1. Front Panel Features and STATUS LED States
Name Function
Status Indicators Indicates loopback, HDSL, and error status, as described below.
LOOP Lights green when a loopback is in effect.
FAIL Controlled by the channel bank. The LED remains on at all times
when the HLU-200 is used with revision 7.1.1 banks due to a
software flaw in 7.1.1 When used with revision 7.1.2 or higher,
it lights when the HLU-200 is first plugged into the bank and
remains on until the bank finishes its program download and
handshakes with the HLU-200 line unit. During normal
operation, it lights when there is a failure that affects service
within the bank.
HDSL Tri-colored LED:
flashes green during HDSL sync acquisition on either HDSL
loop.
flashes red for any of the alarm conditions.
lights steady green when both HDSL loops are in sync and no
minor alarms exist.
lights steady red if the on-board 48 V fuse opens.
RS-232 Craft port Provides asynchronous access to the menu interface for system
maintenance, provisioning, and performance monitoring
firmware. Access is through a maintenance terminal or a PC with
terminal emulation software connected to this 9-pin DB-9 female
connector. The port is configured as DCE at 9600 baud, with 8
data bits, 1 stop bit, and no parity.
Retaining latch Secures the HLU-200 into place.

Overview 350-200-115-02, Issue 2
4 September 25, 1998 HLU-200 List 1E
COMPATIBILITY
The HLU-200 List 1E operates as a channel card within a DSC LITESPAN
2000 Channel Bank. The LITESPAN 2000 system consists of a CO bank that
is connected to a remote bank over an OC3 fiber link. Each bank has slots for
56 channel plug-ins. The HLU-200 List 1E is typically installed in the remote
bank where it is used to transmit a T1 payload to a remote HRU over two
unconditioned HDSL cable pairs, with or without doublers. It is the HDSL
equivalent to an AT1U channel card, which is used to transmit a T1 payload
to a remote location over conventional T1 spans.
The HLU-200 List 1E is compatible with software releases 7.1.x and 8.1.x
and above, of the LITESPAN 2000 system. The List 1E is not compatible
with the LITESPAN 2000 Management System and must be maintained,
provisioned, and monitored from its front panel RS-232 Craft port. The
HLU-200 List 2D (AHDSL) line unit provides integrated management and is
compatible with the LITESPAN 2000 TL1-based Network Management
System and the LITECRAFT Management System in Version 8.x.
The HLU-200 List 1E timing is not synchronized to the LITESPAN bank
timing but runs asynchronously with respect to it.
TheHLU-200 List 1E canbe cross-connectedto another HLU-200 oranother
asychronous T1 channel unit within its own channel bank or in the distant
channel bank.This is shown inFigure3 on page16, wheretestaccessateither
the remote or local ends can be accomplished by use of ADS1U and AT1U
line cards. These point-to-point dedicated circuits are initiated by issuing the
standard TL1-based cross-connect commands to the Maintenance and Test
Interface (MTI) card that identifies the HLU-200 List 1E as an AHT1U plug.