Paradyne 7986 User Manual

Hotwire 7986 M/HDSL Standalone Termination Unit with G.703 Interface

Installation Instructions

Document Number 7986-A2-GZ40-00

March 1999

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

Select the following document:

Library → Technical Manuals → Hotwire DSL & MVL Systems.

7986-A2-GB20

Hotwire 7986 M/HDSL Standalone Termination Unit, with G.703 Interface, User’s Guide

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 Within the U.S.A., call 1-800-PARADYNE (1-800-727-2396)  Outside the U.S.A., call 1-727-530-8623

Installation Overview

Installation and configuration of the Hotwire 7986 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 internal switchpacks or using the Configuration

Edit menus.

Before you install the Hotwire 7986 Standalone Termination Unit, read the

Important Safety Instructions

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

Support → Warranty Registration.

on page 20.

Service &

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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:

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

If you will use a –48 Vdc power supply:

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

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 7986 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 7986 Standalone Termination Unit.

Connect the

1 2 3 4 5 6

Black

Red

Green

White

Orange

Blue

+24 Vdc Power Supply Pinouts

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X X

Ground RTN

+24 Vdc X

99-14158-02

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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.

A crossover cable (Pins 1 and 2 to 4 and 5) is required to connect two 7986 Standalone Termination Units back-to-back.

Connecting to a DTE

The E1 network 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 the User’s Guide for specifications of the 120-ohm connector and cable.

Cables and Pin Assignments

Connecting to a System Terminal

An optional system maintenance terminal may be attached to your Hotwire 7986 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

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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.

March 1999

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

Network Configuration

The following illustration shows a network application using a 2-port Hotwire 8786 or 8784 M/HDSL Termination Unit for access concentration in a central office (CO). A frame relay switch and a router are connected, through the termination unit, to partner units supporting a host or router, and frame relay encapsulated or unframed data.

Frame

Relay

Switch

Router

7986 (G.703)

CO Site

LTU

CO Site

8786 or 8784

Termination Unit

in 8600 DSLAM

2.048 Mb over

SDSL

EIA-530A

V.35

7985

Customer

Premises (CP)

G.703

7986

G.703

7986

E1 Host (Frame Relay Encapsulated

Data)

Router (Frame Relay Encapsulated

Data)

Router

Customer Premises

NTU

7985

V.35

7986 (G.703)

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7986

G.703

98-16151

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In a DSLAM-to-standalone configuration:

 The devices synchronize without altering factory defaults, since the CO unit

defaults to LTU mode, and the CP unit defaults to NTU mode.

In a standalone-to-standalone configuration:

 One unit must be changed to run in LTU mode, since standalone units have

a factory default setting of NTU mode.

In both cases the clocking source may have to be altered depending on network requirements.

Choosing a Configuration Mode

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 comes configured to allow settings to be made through the Configuration menus.

Configuring the Unit Using the Configuration Menus

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

NOTE:

The 7986 Standalone Termination Unit is preconfigured as an NTU. If you are using this unit as an NTU, the configuration options may not need to be changed.

The 7986 Standalone Termination Unit has two sets of configuration option settings:

 The Current Configuration (the 7986 Standalone Termination Unit’s active set

of configuration options)

 The Default Factory Configuration (a read-only configuration area containing

the factory default 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

Default Factory Configuration

Configuration Loader

The selected configuration option set is loaded and the Configuration Edit/Display menu screen appears.

The Configuration Loader screen is displayed allowing you to upload or download configurations from a TFTP server.

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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

main/config/edit Hotwire

CONFIGURATION EDIT/DISPLAY

Network G.703 System Options Communication Port Management and Communication

––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Ctrl-a to access these functions, ESC for previous menu M

ave

Model: 7986

ainMenu Exit

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

Network Network Interface Options, Table 1 DSL network interfaces on

G.703 G.703 Interface Options, Table 2 G.703 interface. System Options System Options, Table 3 General system options of

the unit.

Communication Port

Management and Communication

Communication Port Options, Table 4 Unit’s COM port options.

 Telnet Session Options, Table 5  Communication Protocol Options,

Table 6

 General SNMP Management

Management support of the unit through SNMP and Telnet.

Options, Table 7

 SNMP NMS Security Options,

Table 8

 SNMP Traps Options, Table 9

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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 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.

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.

 AutoRate 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 L TU, in kbps.

 DSL Line Rate is only available when the unit is configured as an LTU, and

AutoRate is set to Disable.

Peer IP Address (LTU Only)

Possible Settings: 000.000.000.001 – 223.255.255.255, Clear Default Setting: 000.000.000.000

Specifies the peer IP address for the NTU, to provide remote management providing the remote management link on the DSL loop.

 Peer IP Address is only available when the standalone unit is configured as an

L TU.

Circuit Identifier

Possible Settings: [ASCII Text], Clear Default Setting: [blank]

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

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