Paradyne Hotwire 8786 Manuale utente

8786-A2-GZ40-20 February 2001

Hotwirer8786 TDM SDSL Termination Unit

with G.703 Interface

Installation Instructions

Document Number 8786-A2-GZ40-20

February 2001

Product Documentation Online

Complete documentation for this product is available at www.paradyne.com.

Select Library →Technical Manuals →Hotwire DSL & MVL Systems.

Select the following document:

8786-A2-GB20

Hotwire 8786 TDM SDSL Termination Unit, with G.703 Interface, User’s

Guide

To order a paper copy of a Paradyne document:

HWithin the U.S.A., call 1-800-PARADYNE (1-800-727-2396)

HOutside the U.S.A., call 1-727-530-8623

Hotwire 8786 TDM SDSL Termination Unit

The Hotwirer8786 Termination Unit is a circuit card assembly that contains two

Time Division Multiplexer Symmetric Digital Subscriber Line (TDM SDSL) ports

and a G.703 interface. When the Hotwire 8786 TDM SDSL Termination Unit is

used in a Hotwire 8600 or 8800 Series Digital Subscriber Line Access Multiplexer

(DSLAM) chassis, it transports up to 2048 kbps signals over traditional

twisted-pair telephone wiring.

!HANDLING PRECAUTIONS FOR

STATIC-SENSITIVE DEVICES

This product is designed to protect sensitive components from

damage due to electrostatic discharge (ESD) during normal operation.

When performing installation procedures, however, take proper static

control precautions to prevent damage to equipment. If you are not

sure of the proper static control precautions, contact your nearest

sales or service representative.

496-15104

2 8786-A2-GZ40-20

February 2001

Installation Overview

Installation and configuration of the Hotwire 8786 TDM SDSL Termination Unit

consists of:

HInstalling the unit in the DSLAM.

HConnecting to the DTE.

HConnecting to an MDF.

HProviding initial unit identity information or changing existing identity

information.

HConfiguring your unit using the Configuration Edit menus.

Before you install the unit, read the Important Safety Instructions on page 17.

Be sure to register your warranty at www.paradyne.com/warranty.

Planning the Installation

Review the following list to help plan for the installation.

-Obtain the applicable cables; refer to Cables You Need.

-Make sure the Hotwire DSLAM chassis is installed and power is supplied to

the chassis.

-After the Hotwire 8786 TDM SDSL Termination Unit is installed, there are

configuration procedures that must be performed before you can begin to

use the unit. Refer to the Hotwire 8786 TDM SDSL Unit, with G.703

Interface, User’s Guide for more detailed configuration procedures.

Cables You Need

The following standard cables are used with this product.

For the network connection:

HPlug-ended Telco 50-pin cable for connection from the Hotwire 8600 Series

DSLAM LINE port or one of the Hotwire 8800 Series DSLAM LINES ports to

the Main Distribution Frame (MDF) or other demarcation point.

For the DTE connection:

HThe 50-position plug-to-two 8-position unkeyed modular jacks. (Paradyne

Feature No. 8700-F1-505 can be used. Ignore Jacks 3 and 4.)

For more information refer to Connector Pin Assignments in the User’s Guide,

and the appropriate DSLAM installation document.

8786-A2-GZ40-20 February 2001

Installing TDM SDSL Cards

A Hotwire 8786 TDM SDSL Termination Unit can be installed, removed, and

replaced from a the DSLAM chassis without disrupting service to the other cards

in the chassis.

"Procedure

To install the unit:

1. Determine in which slot the unit will be installed. Verify that cards in adjacent

slots have been fastened.

2. Remove the filler plate from the installation slot. Store the filler plate for

possible future use.

3. Insert the unit:

—For a Hotwire 8600 Series DSLAM chassis – Hold the Hotwire 8786

TDM SDSL Termination Unit horizontally, with the component side facing

up, and insert it into the left and right card guides.

—For a Hotwire 8800 Series DSLAM chassis –Hold the Hotwire 8786

TDM SDSL Termination Unit vertically, with the component side facing

right, and insert it into the top and bottom card guides.

4. Slide the unit into the slot until the power and network connectors seat firmly

in the mating connectors on the backplane.

CAUTION:

Do not force the unit into the slot. This could damage the backplane

connectors. If the card does not seat properly, remove the card and

reinstall it. If it still does not seat properly, call your service

representative.

The unit performs a power-on self-test. All of the LEDs turn ON and OFF

briefly. When the self-test is completed successfully, the SYSTEM OK LED

begins to pulse.

5. If the LED is not pulsing, refer to Messages and Troubleshooting in the

User’s Guide.

6. Secure the unit by fastening the screws at each end of the faceplate.

4 8786-A2-GZ40-20

February 2001

Connecting to the DTE

Connection to the two ports of the Hotwire 8786 TDM SDSL Termination Unit is

through the 50-pin interface connector on its faceplate. Refer to Connector Pin

Assignments in the User’s Guide.

"Procedure

To connect the Hotwire 8786 TDM SDSL Termination Unit to your DTE:

1. Connect the 50-position connector of the cable to the connector on the

faceplate of the unit. Align one end of the cable connector with the card

connector, then push on the cable connector until it seats.

The end of the cable connector has a release button. To remove the

connector, press the release button and pull the connector away from the

card.

2. Feed the cable through the Cable Guide if it is in use. When all cables are

installed, anchor them with cable ties to the rack, DSLAM, or Cable Guide.

3. Connect the two terminating connectors to your DTE.

Connecting to an MDF

You can connect the Hotwire DSLAM chassis containing the Hotwire 8786 TDM

SDSL Termination Unit to an MDF or other demarcation point. Do not connect it

to a POTS splitter.

"Procedure

To connect the Hotwire DSLAM chassis containing the Hotwire 8786 TDM SDSL

Termination Unit to an MDF:

1. Plug the Telco 50-pin cable into the appropriate LINE port on the chassis.

2. Replace the longer Telco cable captive screw with a shorter connector

captive screw, which is provided with the Hotwire DSLAM chassis.

3. Insert a cable tie (provided with Hotwire DSLAM chassis) through the tie

mount to hold the Telco 50-pin connector in place. If more than one Telco

cable is being connected, span the two or three connectors.

4. Make sure the other end is connected to the appropriate MDF or

demarcation point.

Refer to Connector Pin Assignments in the User’s Guide for pinouts.

NOTE:

If you are connecting the Telco 25-pair, 50-pin cable to an MDF, a converter

may be necessary for terminating the other end of the cable on a punchdown

block before cross-connecting to an MDF.

8786-A2-GZ40-20 February 2001

Front Panel LEDs

The following table describes the meaning and states of the LEDs on the

Hotwire 8786 TDM SDSL Termination Unit’s faceplate.

Type LED LED is . . .* Indicating . . .

SYSTEM OK

(Green) On

Off

Slow Cycling

Pulsing

Unit failure; system processing has stopped.

No power to card.

Unit is in minimum mode and a download is

required.

Normal operation.

Alrm

(Amber) On

Off

Unit failure, or Power-On Self-Test (POST) has

failed.

No alarms.

Test

(Amber) On

Slow cycling

Off

Loopback test or 511 test pattern in progress.

POST in progress.

No tests.

G.703 1, 2

(Green) On

Slow cycling

Fast cycling

Off

Recoverable signal present on the G.703

network.

Remote Alarm Indication (RAI) present.

An OOF, LOF, EER, or AIS condition exists.

No signal on the port.

DSL PORT 1, 2

(Green) On

Slow cycling

Fast cycling

Off

DSL link is up.

DSL training in progress.

OOF condition.

DSL link is down.

*Slow Cycling: LED turns off and on in equal duration once per second.

Fast Cycling: LED turns off and on in equal duration 5 times per second.

Pulsing: LED turns off momentarily once per second.

TDM

SDSL

8786

SYSTEM

OKAlrm

Test

G.703

DSL PORT

00-16136-01

6 8786-A2-GZ40-20

February 2001

Logging In to the Hotwire DSLAM

You can log in to the Hotwire DSLAM system using either a local VT100-

compatible terminal or a remote Telnet connection.

After you enter your user ID and password, the system displays the Hotwire

Chassis Main Menu. See your Management Communications Controller (MCC)

documentation for information about selecting the unit from the MCC card

selection screen.

Asynchronous Terminal Interface Menu

The following illustration shows the paths to the Hotwire 8786 TDM SDSL

Termination Unit’s various ATI screens.

Main

Status Test

System and

Test Status Performance

Statistics Display

LEDs Identity

Network

Error

Statistics

Network

Performance

Statistics

Configuration Control

Default

Factory

Configuration

Loader

Current

Configuration

Network G.703 Copy

Ports System

Options Management

and

Communication

Change

Identity

Administer

Logins

Download

Code Apply

Download

Reset

AutoRate

Network &

G.703Tests Device

Tests Abort All

Tests

01-16044-03

G.703

Statistics

Telnet

Session SNMP NMS

Security

General SNMP

Management SNMP

Traps

Reset

Device

Current

Network

Performance

8786-A2-GZ40-20 February 2001

Entering Identity Information

After accessing your unit for the first time, use the Change Identity screen to

determine SNMP administrative system information that will be displayed on the

Identity screen of the Status branch. To access the Card Identity screen, follow

this menu selection sequence:

Main Menu →Control →Change Identity

Configuring the Unit

Configuration option settings determine how the unit operates. Use the

Configuration branch of the Hotwire 8786 TDM SDSL Termination Unit’s menu to

display or change configuration option settings.

The unit is shipped with factory settings in the Default Factory Configuration

area. If the factory default settings do not support your network’s configuration,

customize the configuration options for your application.

8 8786-A2-GZ40-20

February 2001

Accessing and Displaying Configuration Options

To display the configuration options, you must first load a configuration option set

into the edit area.

To load a configuration option set into the configuration edit area, follow this

menu selection sequence:

Main Menu →Configuration (Load Configuration From)

main/configuration Hotwire

Slot: 4 Model: 8786

LOAD CONFIGURATION FROM:

Current Configuration

Configuration Loader

Default Factory Configuration

–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Ctrl-a to access these functions, ESC for previous menu MainMenu Exit

ÎÎ

Make a selection by placing the cursor at your choice and pressing Enter.

If you select . . . Then . . .

Current

Configuration The selected configuration option set is loaded and the

Configuration Edit/Display menu screen appears.

Configuration

Loader The Configuration Loader screen is displayed allowing you to

upload or download configurations from a TFTP server.

Default Factory

Configuration The default factory configuration is loaded and the Configuration

Edit/Display menu screen appears.

8786-A2-GZ40-20 February 2001

Configuration Edit/Display

The Configuration Edit/Display screen is displayed when the current, customer,

or default configuration is loaded and allows groups of configuration options to be

displayed. To access the Configuration Edit/Display screen, follow this menu

selection sequence:

Main Menu →Configuration →Current Configuration

–or –

Main Menu →Configuration →Default Factory Configuration

ÎÎ

main/config/edit Hotwire

Slot: 2 Model: 8786

CONFIGURATION EDIT/DISPLAY

Network

G.703

Copy Ports

System Options

Management and Communication

Ctrl-a to access these functions, ESC for previous menu MainMenu Exit

Save

Select . . . To Access the . . . To Configure the . . .

Network Network Interface Options, Table 1 DSL network interface

Ports 1–2.

G.703 G.703 Interface Options, Table 2 G.703 interface.

Copy Ports Copy Ports Options, Table 3 DSL network and G.703

interface ports by copying

options from port to port.

System Options System Options, Table 4 General system options of

the unit.

Management

and

Communication

HTelnet Session Options, Table 5

HGeneral SNMP Management

Options, Table 6

HSNMP NMS Security Options,

Table 7

HSNMP Traps Options, Table 8

Management support of the

unit through SNMP and

Telnet.

NOTE:

The SNMP NMS Security Options screen is not available in IP Conservative mode.

10 8786-A2-GZ40-20

February 2001

Table 1. Network Interface Options

Margin Threshold

Possible Settings: –5db, –4db, –3db, –2db, –1db, 0db, 1db,2db,3db,4db,5db,6db,

7db,8db,9db,10db

Default Setting: 0db

Determines the level, expressed in decibels, at which a signal-to-noise margin condition

is recognized.

Excessive Error Rate Threshold

Possible Settings: 1E–4,1E–5,1E–6,1E–7,1E–8,1E–9

Default Setting: 1E–6

Determines the error rate at which an excessive error rate (EER) condition is

recognized. The rate is the ratio of the number of CRC errors to the number of bits

received in a certain period.

AutoRate

Possible Settings: Enable, Disable

Default Setting: Disable

Determines whether the unit automatically adjusts to the best line rate for conditions, or

is fixed at the rate in the DSL Line Rate field. The automatically set rate cannot exceed

DSL Line Rate.

HAutoRate is only available when the unit is configured as an LTU.

DSL Line Rate

Possible Settings: 400, 528, 784, 1040, 1552, 2064

Default Setting: 2064

Determines the fixed line rate of the LTU when AutoRate is disabled, and the maximum

rate to which the unit can be set if AutoRate is enabled.

HDSL Line Rate is only available when the unit is configured as an LTU.

Peer IP Address

Possible Settings: 001.000.000.000 –223.255.255.255, Clear

Default Setting: 000.000.000.000

Specifies the peer IP address providing the remote management link on the DSL loop.

The Peer IP Address is only available when the unit is configured as an LTU.

HPeer IP Address is only available when the unit is configured as an LTU and the

unit is not running in IP Conservative mode.

Circuit Identifier

Possible Settings: [ASCII Text], Clear

Default Setting: [null string]

Uniquely identifies the circuit number of the transmission vendor’s DSL line for

troubleshooting purposes.

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