ADC HiGain HRU-402 User manual

HiGain
HiGain
TECHNICAL PRACTICE
ALM
L
TELEPHONE Co. PROPERTY
LP2
ESF
SF
LP1
B8ZS
AMI
LBK
H
D
S
L
RCV
LEV
D
S
1
0 -15
DIS EN
TLOS
LB
XMT
BRG
RCV
RS-232
DCE
BARCODE
HiGain
HDSL2
HRU-402 List 4
Remote Unit
Part Number: 150-1592-04
CLEI Code: T1L3KLRD
1024.book Page i Thursday, January 4, 2001 10:30 AM

LTPH-TP-1024-02, Issue 2
ii January 3, 2001 HRU-402 List 4
Revision History of This Practice
To order copies of this document, use document catalog number LTPH-TP-1024-02.
Copyright
January 3, 2001
©Copyright 2001 ADC DSL Systems, Inc. All rights reserved.
Trademark Information
ADC and Soneplex are registered trademarks of ADC Telecommunications, Inc.
HiGain is a registered trademark of PairGain Technologies, Inc. No right, license, or
interest to such trademarks is granted hereunder, and you agree that no such right,
license, or interest 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 containedin this document iscompany private toADC 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 3, 1999 Initial Release
02 January 3, 2001 Style and format changes
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LTPH-TP-1024-02, Issue 2 Using This Technical Practice
HRU-402 List 4 January 3, 2001 iii
USING THIS TECHNICAL PRACTICE
Three types of messages, identified by icons, appear in the text:
For a list of abbreviations used in this document, refer to “Appendix C -
Abbreviations” on page 41.
UNPACK AND INSPECT YOUR SHIPMENT
Upon receipt of the equipment:
1Unpack the container and inspect the product for signs of damage. If the
equipment has been damaged in transit, immediately report the extent of
the damage to the transportation company and to your sales
representative. When storing the equipment for a prolonged period, use
the original container.
2Verify the contents using the packing list to ensure complete and
accurate shipment.
Notes contain information about special circumstances.
Caution symbols indicate the possibility of personal injury
or equipment damage.
The Electrostatic Discharge (ESD) susceptibility symbol
indicates that adevice or assemblyis susceptibleto damage
from electrostatic discharge.
1024.book Page iii Thursday, January 4, 2001 10:30 AM

Unpack and Inspect Your Shipment LTPH-TP-1024-02, Issue 2
iv January 3, 2001 HRU-402 List 4
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LTPH-TP-1024-02, Issue 2 Table of Contents
HRU-402 List 4 January 3, 2001 v
TABLE OF CONTENTS
Overview _______________________________________________ 1
Features.................................................................................... 2
Product Description ................................................................. 3
Status LEDs ............................................................................. 5
Compatibility ........................................................................... 7
Installation _____________________________________________ 8
Setting Panel Circuit Board Options........................................8
Set the SCURR Option.............................................. 9
Set the LPWR Option.............................................. 10
Install the HRU-402............................................................... 11
Remote Login __________________________________________ 12
Connecting to a Maintenance Terminal.................................12
Logging On and Off............................................................... 13
Remote Terminal Main Menu................................................ 15
Performance Monitoring_________________________________ 16
PM Applications .................................................................... 16
Accessing the Performance Monitoring Menu...................... 18
Current Status Screen .............................................. 20
Blockage Indicator History Screen.......................... 22
Sectionalized Event History Screen ........................ 24
Performance 15-Minute History Screen.................. 26
Performance 1-Day History Screen......................... 27
Set Date and Time Screen .......................................28
Signal Generator Screen.......................................... 29
Set HiGain Configuration........................................ 31
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Table of Contents LTPH-TP-1024-02, Issue 2
vi January 3, 2001 HRU-402 List 4
Appendix A - Specifications _______________________________33
Card-Edge Connector.............................................................34
Craft Port................................................................................35
NIU Query Command............................................................36
Appendix B - Product Support_____________________________37
Technical Support...................................................................37
Returns....................................................................................38
Appendix C - Abbreviations _______________________________41
Certification and Warranty _________________Inside Back Cover
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LTPH-TP-1024-02, Issue 2 List of Figures
HRU-402 List 4 January 3, 2001 vii
LIST OF FIGURES
1.Typical HiGain System .......................................................................... 1
2.HRU-402 Front Panel............................................................................. 3
3.Location of Switch S1 on HRU-402 Circuit Board ............................... 9
4.Installing the HRU-402 in a Remote Enclosure................................... 11
5.Connecting to a Maintenance Terminal ............................................... 12
6.Remote Terminal Login Screen ........................................................... 14
7.Sectionalized Analysis of T1 Transmission......................................... 16
8.Performance Monitoring Menu............................................................ 18
9.Current Status Screen........................................................................... 20
10.Blockage Indicator History Screen....................................................... 22
11.Sectionalized Event History Screen..................................................... 24
12.Performance 15-Minute History Screen............................................... 26
13.Performance 1-Day History Screen...................................................... 27
14.Set Clock Screen .................................................................................. 28
15.Signal Generator Screen....................................................................... 29
16.Set HiGain Configuration Screen......................................................... 31
17.Card-Edge Connector Pinouts.............................................................. 34
18.RS-232 Craft Port Pinout ..................................................................... 35
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List of Tables LTPH-TP-1024-02, Issue 2
viii January 3, 2001 HRU-402 List 4
LIST OF TABLES
1.HRU-402 Front-Panel Features..............................................................4
2.Status LED Descriptions.........................................................................5
3.Switch S1 - SCURR Option Settings....................................................10
4.Switch S1 - LPWR Option Settings......................................................10
5.Remote Terminal Main Menu Items.....................................................15
6.Performance Monitoring Menu Items...................................................19
7.Status Screen Parameters......................................................................20
8.Sectionalized Event Descriptions .........................................................25
9.Signal Generator Test Options..............................................................30
10.User Options for the Set HiGain Configuration Screen .......................32
11.Model-specific NIU Query Commands................................................36
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LTPH-TP-1024-02, Issue 2 Overview
HRU-402 List 4 January 3, 2001 1
OVERVIEW
The ADC®HiGain®Remote Unit, HRU-402, functions as the remote end of
a repeaterless T1 transmission system. When used with HiGain Line Units
(HLUs) and HiGain Doubler Units (HDUs), the HiGain system provides
1.544 Mbps data transfer on two unconditioned copper pairs over the full
Carrier Service Area (CSA) range.
In addition to HiGain Maintenance Terminal screens, the HRU-402 List 4
provides special performance monitoring and sectionalized analysis
information for fault isolation. This performance monitoring feature supports
real-time and on-demand reporting.
Figure 1 shows a basic HiGain configuration for a T1 High-bit-rate Digital
Subscriber Line (HDSL) circuit. The HLU is installed at the Central Office
(CO) shelf and the remote unit is housed in a remote enclosure at the
Customer Premises Equipment (CPE)site.OptionalHDUsprovidetheability
to double or even triple the distance range for customer applications located
outside the CSA.
Figure 1. Typical HiGain System
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Overview LTPH-TP-1024-02, Issue 2
2 January 3, 2001 HRU-402 List 4
FEATURES
•Front panel featuring:
–Status LEDS for DS1 and HDSL
–RS-232 craft port for connection to a maintenance terminal
–Receive (RCV) and transmit (XMT) test access jacks
–HDSL margin threshold indicator
•Local or line powering options
•Real-time Performance Monitoring (PM) and sectionalized analysis
–ANSI T1.403 Performance Report Messages (PRM)
–Supplemental Performance Report Messages (SPRM)
–Network Performance Report Messages (NPRM)
–Alarm Indicator Signal-Customer Interface (AIS-CI)
–Remote Alarm Indicator-Customer Interface (RAI-CI)
–SuperFrame Remote Alarm Indicator (SF-RAI)
–On-demand access to stored PM information for applications which
do not support real-time monitoring through craft port or inbandand
out-of-band commands
–Mode analysis and SF to Extended SuperFrame (ESF) frame format
conversion for fault isolation
•Support for the Network Remote (NREM), SmartJack (SMJK),
Customer Local Loopback (CLOC), and Transmit Loss of Signal
(TLOS) loopback commands
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LTPH-TP-1024-02, Issue 2 Overview
HRU-402 List 4 January 3, 2001 3
PRODUCT DESCRIPTION
The HRU-402 front-panel features are identified in Figure 2 and described in
Table 1 on page 4.
Figure 2. HRU-402 Front Panel
Configuration number label
(inside handle)
Alarm LED
Loopback LED
TLOS loopback switch
CLEI/ECI Bar code label
Loopback pushbutton
DS1 receive level switch
RS-232 craft port
Extraction handle
DS1 transmit and receive
bridging jacks
HDSL LEDs
DS1 framing LEDs
DS1 code LEDs
ALM
L
TELEPHONE Co. PROPERTY
LP2
ESF
SF
LP1
B8ZS
AMI
LBK
H
D
S
L
RCV
LEV
D
S
1
0-15
DIS EN
TLOS
LB
XMT
BRG
RCV
RS-232
DCE
List number
HiGain
HRU-402
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Overview LTPH-TP-1024-02, Issue 2
4 January 3, 2001 HRU-402 List 4
Table 1. HRU-402 Front-Panel Features
Name Function
List number Identifies a specific version of the product.
Status LEDs See Table 2 on page 5 for status descriptions.
Loopback (LPBK)
Control button Press the button for 5 seconds to activate a remote loopback towards the Network (NREM). The unit can be unlooped by either
pressing the LPBK pushbutton again for 5 seconds or by sending
the loopdown codes.(a)
(a) Any existing loopbacks are terminated before NREM loopback is activated.
DS1 Receive (RCV)
Level (LEV) switches Sets DS1 receive level output toward the Customer Interface (CI) when the unit is provisioned for Network Interface (NI) output
level.(b)
(b) Disabled when provisioned for DSX-1 option.
0Sets the DS1 receive level toward the CI to 0 dB.(c)
(c) Default setting.
-15 Sets the DS1 receive level toward the CI to -15 dB.
Transmit Loss of
Signal (TLOS)
Loopback (LB)
switch
Enables (ENA) or disables (DIS) the TLOS loopback option. If
enabled, this option displays the TLOS message from the HLU
whentheHRUisinalogicloopbackstatecausedbyalossofitsT1
input from the CI.
DS1 XMT and RCV
Bridging jacks Provides bridging test and monitor access jacks to the CPE DS1 interface. Provides both monitor and test access capability.
RS-232 craft port Provides bidirectional communication between the unit and an
external maintenance terminal through an RS-232 interface to
allow configuration and performance monitoring through the
Maintenance Terminal menus.
CLEI/ECI Bar code
label Containshuman-readableCommonLanguageEquipmentIdentifier (CLEI) code number and Equipment Catalog Item (ECI) bar code
number.
Extraction handle Handle used to remove the HRU-402 from the remote enclosure.
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LTPH-TP-1024-02, Issue 2 Overview
HRU-402 List 4 January 3, 2001 5
STATUS LEDS
Table 2 describes the functions of the Status LEDs on the front panel.
Table 2. Status LED Descriptions
LED Status Indicates
Alarm (ALM) LED Shows alarm states for remote and local Loss of Signal (LOS).
Solid red Indicates a LOS condition at HRU T1 input.
Blinking Indicates a LOS condition at HLU T1 input.
HDSL LEDs Displays HDSL Loop 1 (LP1) and Loop 2 (LP2) conditions.
Solid green Indicates HDSL loop is in sync.
Blinking 1 time
per second Indicates the HDSL loop is trying to acquire sync.
Blinking 4 times
per second Indicates a margin alarm condition on the HDSL loop.
Blinking 10 times
per second Indicates a Cycle Redundancy Check (CRC) error on the HDSL loop.
OFF Indicates no activity on the HDSL loop.
DS1 Framing (FRM)
LEDs (ESF and SF) Indications for framing patterns.(a)
ESF LED = Solid
green Indicates Extended SuperFrame (ESF). The LED blinks one time per second when a frame error is indicated.
SF LED = Solid
green Indicates SuperFrame (SF). The LED blinks two times per second when a frame error is indicated.
OFF Indicates unframed or no signal.
DS1 Line Code LEDs
(B8ZS and AMI) Line code is a user-selectable system setting. The DS1 Line Code
LED reports status based on the line code setting.(a)
B8ZS = Solid green DS1 Code Option = B8ZS: Indicates that the DS1 line code option
is set to Binary 8 Zeroes Suppression (B8ZS). The LED blinks one
time per second when a string of successive zeros is detected.
DS1 Code Option = AUTO: Indicates the DS1 line code is being
detected as B8ZS.(b)
AMI = Solid green DS1 Code Option = AMI: Indicates that the user DS1 line code
option is set to Alternate Mark Inversion (AMI). The solid green
LED does not indicate the actual DS1 line code being received,
which may be AMI or B8ZS. This LED blinks one time per second
when a Bipolar Violation (BPV) is detected. Continued
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Overview LTPH-TP-1024-02, Issue 2
6 January 3, 2001 HRU-402 List 4
DS1 Code Option = AUTO: Indicates the DS1 line code is being
detected as AMI.(b)
Loopback (LPBK)
LED Shows loopback states to and from the network, to and from the Customer Interface (CI), and an ARMED condition.
Solid yellow Indicates Network Remote Loopback (NREM), SMJK, or TLOS.
Blinking 1 time
per second Indicates Customer Local Loopback (CLOC) loopback state.
Blinking 4 times
per second Indicates the HRU is in an ARMED state.
(a) If DS1 signals are not detected, the ESF, SF, B8ZS, and AMI LEDs will not light.
(b) Auto DS1 code option not available when attached to a HLU-231 List 8D,
HLU-231 List 8E, HLU-319 List 5D, HLU-319 List 5E, HLU-388 List 5D or
HLU-388 List 5E.
Table 2. Status LED Descriptions (Continued)
LED Status Indicates
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LTPH-TP-1024-02, Issue 2 Overview
HRU-402 List 4 January 3, 2001 7
COMPATIBILITY
The HRU-402 can be used with the following line units:
•HLU-231 List 8x
•HLU-319 List 5x
•HLU-388 List 5x
•HLU-200
The HRU-402 can be used with the following doublers:
•HDU-404, HDU-407, and HDU-409
•HDU-437, HDU-439 List 1 or List 1B
•HDU-451 List 4 or List 4B
The HRU-402 is compatible with the following shelves (for indoor use):
•HRE-420 (single-wide, single mount)
•HRE-422 (double-wide, double mount)
•HRE-425 (12-slot wall or rack mount)
•HRE-427 (seven-unit wall or rack mount)
•200 Mechanics type shelves
•400 Mechanics type shelves
For outdoor applications, the HRU-402 mounts in the following enclosures:
•HRE-450 (single-unit)
•HRE-454 (four-unit)
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Installation LTPH-TP-1024-02, Issue 2
8 January 3, 2001 HRU-402 List 4
INSTALLATION
SETTING PANEL CIRCUIT BOARD OPTIONS
HRU-402 has two user options that must be set before you install it into a
shelf or an enclosure. These options are set by the two-position switches at
S1, located near the card-edge connections at the back of the HRU circuit
board. Figure 3 on page 9 shows the location of the switch options and how
to enable or disable the switches.
•The uppermost switch, the Sealing Current (SCURR) option, allows you
to enable ordisable the flow of sealingcurrent over the HDSL pairs. (See
“Set the SCURR Option”on page 9).
•The lowermost switch, the Local or Line Power (LPWR) option,
provisions the HRU for the use of local power or line power.
Table 3 on page 10 and Table 4 on page 10 summarize the switch selections.
Factory default settings are shown in bold.
Upon receipt of the equipment, visually inspect the contents
for signs of damage. If the equipment has been damaged in
transit, immediately report the extent of damage to the
transportation company and to ADC Technologies. (See
“Appendix B - Product Support”on page 37.)
Be sure to wear an antistatic wrist strap. Avoid touching
static-sensitive components on the circuit board.
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LTPH-TP-1024-02, Issue 2 Installation
HRU-402 List 4 January 3, 2001 9
Figure 3. Location of Switch S1 on HRU-402 Circuit Board
Set the SCURR Option
The HRU-402 can source from 30 mA (short loop) to 20 mA (long loop) of
simplex sealing current towards the upstream unit over the two HDSL pairs.
Do one of the following:
•If the HRU-402 is to be used with an HDU-451 List 1, 2, 3, or 3B
doubler, disable the simplex sealing current. These doublers are only
compatible with the metallic sealing current of earlier remote units.
•If the HRU-402 is to be used only with those doublers listed under
“Compatibility”onpage 7,enable thesimplexsealingcurrentoption;the
compatible doublers provide a path through which the simplexed sealing
current can flow.
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Installation LTPH-TP-1024-02, Issue 2
10 January 3, 2001 HRU-402 List 4
Table 3 summarizes the SCURR option settings. The default setting is in
boldface type.
Set the LPWR Option
The HRU-402 can be provisioned for local or line power. Do one of the
following:
•If the HRU-402 is to be powered by the upstream line unit, place the
LPWR switch in the Up position.
•If the HRU-402 is to be powered by a local -48 Vdc supply, place the
LPWR switch in the Down position.
Table 4 summarizes the LPWR option settings. The default setting is in
boldface type.
Table 3. Switch S1 - SCURR Option Settings
Switch Position Function
Up (disabled) Disables the flow of simplex sealing current over the HDSL pairs
towards the upstream unit.
Down (enabled) Enables the flow of simplex sealing current over the HDSL pair
towards the upstream unit. This simplexed sealing current is
polarity-sensitive and will not flow if the HDSL loops adjacent to
the HRU are reversed. Reversed loops are indicated by a CHREV
message in the Alarms line of the Span Status Maintenance
screen.
Table 4. Switch S1 - LPWR Option Settings
Switch Position Function
Up (line power) Provisions the HRU-402 for the Line Power mode so that it
receives power from the upstream line unit over the HDSL pairs.
Down (local power) Provisions the HRU-402 for the Local Power mode so that it
receivespowerfromthe -48 Vdcsupplyappliedtoedgeconnector
pin 35 (-) and pin 17 (+). If local power is not present, the HRU
reverts to the Line Power mode.
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LTPH-TP-1024-02, Issue 2 Installation
HRU-402 List 4 January 3, 2001 11
INSTALL THE HRU-402
To install the HRU-402 in a remote enclosure:
1Verify that you have properly set the SCURR and LPWR options
according to the guidelines described in “Setting Panel Circuit Board
Options”on page 8.
2Slide the remote unit into the card guides for the desired slot, then push
the unit into the enclosure until it seats properly in the card-edge
connector (Figure 4).
Figure 4. Installing the HRU-402 in a Remote Enclosure
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Remote Login LTPH-TP-1024-02, Issue 2
12 January 3, 2001 HRU-402 List 4
REMOTE LOGIN
The HRU supports remote login through a maintenance terminal or PC
connected to its front-panel RS-232 craft port. Remote login creates menus
and screens for the HRU that are identical to those at the HLU. Once logged
on you can access the Remote Terminal Main Menu screens to view system
settings and status, and initiate loopbacks. You can also access the HRU
performance monitoring capabilities.
CONNECTING TO AMAINTENANCE TERMINAL
Figure 5. Connecting to a Maintenance Terminal
The HRU-402 front-panel RS-232 craft port allows you to use a standard
serial cable to connect your system to a maintenance terminal or PC running
a terminal emulation program.
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