Paradyne Hotwire 7974 User manual

Hotwire7974, 7975, 7976, 7984, 7985, and 7986

Standalone Termination Unit

Installation Instructions

Document Number 7970-A2-GN10-00

August 1999

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Hotwire 7974, 7975, 7976, 7984, 7985, and 7986 Standalone Termination Unit

User’s Guide

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Installation Overview

Installation and configuration of the Hotwire79xx Standalone Termination Unit

consists of:

Connecting power to the unit.

Connecting to the network.

Connecting to a DTE.

Connecting a system terminal.

Providing initial unit identity information or changing existing identity information.

Configuring your unit using the Configuration Edit menus.

Before you install the Hotwire 79xx Standalone Termination Unit, read the

Important

Safety Instructions

on page 33.

See the User’s Guide for additional information about:

Configuration options

Messages and troubleshooting

Technical specifications

Cables, connectors, and pin assignments

Connecting Power to the Unit

If your package includes a power pack:

Plug the power pack into an ac outlet having

a nominal voltage rating between 100–240 Vac. Connect the output cable of the power

pack to the connector marked POWER on the rear panel.

If your package includes a direct-connection +24 Vdc power cable:

Connect the

unit to an external +24 Vdc SELV (Safety Extra Low Voltage) power source as

described in

Connecting the Unit to an Optional External +24 Vdc Power Source

If you will use a –48 Vdc power supply: Connect the unit to an external –48 Vdc

SELV power source as described in the documentation shipped with the power supply

and power cable.

Connecting the Unit to an Optional External +24 Vdc Power Source

Using the dc power cable, the Hotwire 79xx Standalone Termination Unit is capable of

operating on a +24 Vdc SELV power supply.

Procedure

To use the dc power cable:

1. Connect the green wire to a suitable ground.

2. Connect the orange wire to the +24 Vdc source.

3. Connect the white wire to the return.

4. Cut the black, red, and blue wires off at the outer insulation.

5. Plug the power connector into the 79xx Standalone Termination Unit.

Ground

RTN

+24 Vdc

Black

Red

Green

White

Orange

Blue

99-14158-02

+24 Vdc Power Supply Pinouts

Connecting to the Network

Procedure

To connect your unit to the network:

1. Connect one end of the supplied network cable into the rear panel DSL jack.

2. Connect the other end to your DSL network interface.

NOTE:

not

use a flat VF network cable as this may severely degrade the

performance of the termination unit. Use only Cat 5 twisted-pair network cable.

Connecting to a DTE

Model DTE Connection

7974,

7984 The DSX-1 interface is an RJ48C, 8-position, unkeyed modular connector.

An RJ48C-to-DB15 T1 network interface adapter cable is available from

Paradyne.

7975,

7985 The synchronous interface is a 25-pin EIA-530-A interface. Depending on

the cable used, the interface can be adapted to an X.21, RS-449, or V.35

interface.

7976,

7986 The G.703 interface is either two BNC connectors (Transmit and Receive)

for a 75-ohm unbalanced interface or an RJ48C, 8-position, unkeyed

modular connector for a 120-ohm balanced interface.

See

Cables and Pin Assignments

in the User’s Guide for specifications of the

connectors and cables.

Ferrite Choke (Model 7975 Only)

Procedure

To install the ferrite choke onto the DTE cable:

1. Open the ferrite choke and place it around the cable as close to the cable

connector as possible.

2. Close the two halves around the cable and snap the choke shut, pressing down on

the plastic latch to secure it in place.

3. Add a tie wrap (not included) as shown to prevent the ferrite choke from slipping

down the cable.

All ferrite chokes that are supplied must be installed following these instructions to

ensure compliance with FCC Part 15, VCCI, and CISPR22 rules.

Hotwire 79xx Standalone Termination Unit LEDs

The following table contains a description of the LEDs on the Hotwire 79xx Standalone

Termination Unit front panel.

Label Color LED is . . .* Indicating . . .

POWER Green On

Off

Slow Cycling

Pulsing

Unit failure.

No power to the unit.

Unit is in minimum mode and a download is

required.

Normal Operation.

ALARM Red On

Off

Device failure, or self-test has failed.

Self-test passed.

TEST Yellow On

Off

Slow Cycling

Loopback test or 511 test pattern in progress.

No tests in progress.

Self-test in progress.

DSL Green On

Off

Slow Cycling

Fast Cycling

DSL link is up.

The DSL link is down.

DSL training in progress.

An OOF condition.

DSX-1

DTE

G.703

Green On

Off

Slow Cycling

Fast Cycling

DTE port is operational.

No signal on DTE port.

DSX-1: Yellow Alarm Indication received.

Sync DTE: Not applicable.

G.703: Remote Alarm Indication received.

DSX-1: OOF, LOF, EER, or AIS condition.

Sync DTE: Not applicable.

G.703: OOF, LOF, EER, or AIS condition.

*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.

Connecting to a System Terminal

An optional system maintenance terminal may be attached to your Hotwire

79xx Standalone Termination Unit through the modular jack on the rear panel. The

system maintenance terminal allows you to view the status of the unit and change

configuration options. The terminal must be a VT100-compatible terminal or a PC

running terminal emulation software.

Procedure

To connect your unit to a system terminal:

1. Connect the 9-pin end of the terminal cable into a COM port on your PC.

2. Plug the other end into the modular jack on the rear panel.

3. Set the communication parameters on your PC or terminal to:

— 9600 baud

— 8 bit characters

— no parity

— 1 stop bit

— no flow control

Press Enter from your terminal or PC to activate the Main Menu for the attached unit.

The system runs diagnostics and status checks. After a few moments, the Main Menu

or Logon screen appears on your terminal.

ÎÎ

main Hotwire

Model 79xx

MAIN MENU

Status

Test

Configuration

Control

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

Ctrl-a to access these functions Exit

Asynchronous Terminal Interface Menu

The following illustration shows the menu paths to the different terminal screens.

Main

Status Test

System and

Test Status Performance

Statistics Display

LEDs Identity

Network

Error

StatisticsNetwork

Performance

Statistics

Configuration Control

Factory

Config

Configuration

Loader

Current Configuration

Edit/Display

System

Options Communication

Port Management

and

Communication

Change

Identity

Administer

Logins

Download

Code Apply

Download

Reset

AutoRate

Device

Tests

Abort

All

Tests

99-16496

Reset

Device

Network

General SNMP

Management SNMP NMS

Security

Communication

Protocol

Telnet

Session SNMP

Traps

7974, 7984:DSX-1 Statistics

7975, 7985:(Not Applicable)

7976, 7986:G.703 Statistics

7974, 7984:Network and DSX-1Tests

7975, 7985:NetworkTests

7976, 7986:Network and G.703Tests

7974, 7984:(Not Applicable)

7975, 7985:Sync Data PortTests

7976, 7986:(Not Applicable)

7974, 7984:DSX-1

7975, 7985:Sync Ports

7976, 7986:G.703

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 Identity screen, follow this menu selection sequence:

Main Menu

→

Control

→

Change Identity

Selecting a Configuration Method

You can make configuration changes either through a VT100-compatible terminal and

the unit’s Configuration menus or by manually changing switches on the board. The

unit is shipped with the switchpacks disabled to allow settings to be made through the

Configuration menus. To use the switchpacks, see

Configuring the Unit Using the

Internal Switches

on page 23.

Configuring the Unit Using the Configuration Menus

Use the Configuration menu to select, display, or change configuration option settings.

NOTE:

The 79xx Standalone Termination Unit is shipped configured as an NTU. If you are

using this unit as an NTU, the configuration options may not need to be altered.

The 79xx Standalone Termination Unit has two sets of configuration option settings:

The Current Configuration: The 79xx Standalone Termination Unit’s active set of

configuration options.

The Default Factory Configuration: A read-only configuration area containing the

factory default configuration options.

Displaying Configuration Options

To display configuration options, you must first load a configuration 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)

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.

Default Factory

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.

Configuration Edit/Display

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

default configuration is loaded. 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

Model: 79xx

CONFIGURATION EDIT/DISPLAY

Network

DSX-1 | SYNC Port | G.703

System Options

Communication Port

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 on

the unit.

DSX-1

SYNC Port

G.703

DSX-1 Interface Options, Table 2

Synchronous Data Port Options,

Table 3

G.703 Interface Options, Table 4

DSX-1 interface

(Models 7974, 7984);

Synchronous DTE interface

(Model 7975, 7985);

G.703 interface

(Models 7976, 7986)

System

Options System Options, Table 5 General system options of

the unit.

Communication

Port Communication Port Options, Table 6 Unit’s COM port options.

Management

and

Communication

Telnet Session Options, Table 7

Communication Protocol Options,

Table 8

General SNMP Management

Options, Table 9

SNMP NMS Security Options,

Table 10

SNMP Traps Options, Table 11

Management support of the

unit through SNMP and

Telnet.

Table 1. Network Interface Options (1 of 2)

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 alarm

condition is reported.

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.

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