Black Box MDS931C-2 Manual de usuario

MDS931C-1

MDS931C-2

MDS931AE-2

SUBSCRIBER ACCESS EQUIPMENT

MDSL MODEM

USER MANUAL

Version 1.0

reproduced in any part or as a whole, transcribed, stored in a retrieval system, translated into any language,

or transmitted in any form or by any means, electronic, mechanical, magnetic, optical, chemical,

photocopying, manual, or otherwise, without the prior written permission of BLACK BOX Network Services

Date 17.03.04 page 2 of 29

CONTENTS

CONTENTS 3

VERSION CONTROL 4

1. INTRODUCTION 5

2. GENERAL INFORMATION 6

3. DESCRIPTION OF THE DEVICE 7

3.1. Exterior design 7

3.2. Rules of connection settings 10

4. RULES OF SWITCHING 10

4.1. The delivery set 10

4.2. Connection rules 10

4.3. Communication parameters of the terminal configuration 11

5. THE COMMAND SYSTEM 13

5.1. Basic rules 13

5.2. The main menu 13

5.3. Performance management submenu 14

5.3.1. TRACETIME command 14

5.3.2. LINE command 15

5.3.3. ETH command 15

5.3.4. MAC command 16

5.3.5. RESET command 16

5.4. Fault and maintenance management submenu 17

5.4.1. TRACETIME command 17

5.4.2. SQ command 18

5.4.3. STATUS command 18

5.4.4. ALARM command 19

5.5. Configuration management submenu 19

5.5.1. TRACETIME command 19

5.5.2. CONFIG command 20

5.5.3. RESET command 20

5.5.4. MASTER command 20

5.5.5. LINERATE command 21

5.5.6. ADAPTIVE command 21

5.5.7. ESPEED command 22

5.5.8. EMODE command 23

5.5.9. PORT command 24

5.5.10. OPERATE command (only for MDS931C-1 / MDS931C-2 / MDS931AE-2) 24

5.5.11. TELNET command 24

5.5.12. IP, NETMASK, GATEWAY commands 25

5.6. Security management submenu 26

6. TECHNICAL SPECIFICATIONS 26

7. STORAGE CONDITIONS 27

8. GUARANTEE 27

9. TERMS TO TRANSPORT 28

10. CONNECTOR’S DESCRIPTION 29

11. DESCRIPTION OF INTERFACE CABLES 30

Date 17.03.04 page 3 of 29

Version control

Version number Date Content of changes

0.0 01.05.2002

Initial version of the manual corresponding to version 1.31 of the

device microprogram

0.1 07.02.2002 Added

- telnet

- remote statistics via secondary channel

- 4.6Mbit operate mode

0.2 09.30.2002 IEEE 802.1Q target packet support

1.0 20.11.2002 The official version

Date 17.03.04 page 4 of 29

Introduction

The Black Box DSL Discovery device is targeted at the organization of high-rate access to Internet or at the

integration of LANs. The 2B1Q line encoding is used to transmit information over a twisted pair. The Black

Box DSL Discovery device ensures organization of communication over one or two twisted pairs. The device

provides transmission rates in the range from 192 Kbit/s to 4640 Kbit/s. The parameters of the device are

stored in the NVRAM with the help of a PC. The 10/100Base-T interface is used as a user’s interface. The

device can operate in the transparent bridge mode with the dynamic accumulation of MAC addresses.

The device is designed to organize a digital channel at the central office side and to connect this channel

with the Black Box DSL Discovery external unit installed on the customer premises side. It is also possible to

interconnect two stand-alone modems, for example, for the organization of communication between LANs.

The modems support uploading of new firmware versions using the Monitor port.

Date 17.03.04 page 5 of 29

General information

• High-speed symmetrical data transmission over one or two physical copper

twisted pairs with the 135 Ohm impedance according to ETSI TS 101 135.

• 2B1Q line encoding.

• Line rate in the range from 192 Kbit/s to 2320 Kbit/s over every pair, up to 4.6M over two pairs.

• Manual or automatic mode of line-speed adjustment.

• Ethernet 10/100Base-T interface, Full/Half duplex.

• Transmition of VLAN packet ( IEEE-802.1q ).

• Dynamic table formation of MAC addresses.

• Accumulation of up to 1024 MAC addresses.

• Supported hot reserving DSL function

• Granting of 95% of the digital channel band to the user.

• In-built functions of diagnostics and self-testing.

• Low power consumption, easy-to-use applications.

• Console port for the local management.

• -48V power feeding

• ~220 V power feeding. (only for MDS931AE-2 model)

Date 17.03.04 page 6 of 29

Description of the device

Exterior design

Exterior design of external model (MDS931AE-2) is introduced at the picture

The front panel of the device has six LEDs:

Date 17.03.04 page 7 of 29

Date 17.03.04 page 8 of 29

Exterior design of Rack Mount models MDS931C-1, MDS931C-2 is introduced at the picture

LOCAL(L) informs the user about the status of the local device. The following four statuses are

possible

«blinking red» informs the user about malfunctioning of the modem’s hardware and

software. In this case, the modem is out of order and should be submitted to

the service center for being repaired.

«red» informs the user about an urgent alarm. An abruption of the connection, the

correspondence of the signal-to-noise ratio which does not allow transmitting

information and a great number of errored blocks can cause an urgent alarm.

See the “Command menu” chapter for detail.

«amber» informs the user about non-urgent alarms. An abruption of connection over

the user’s interface can cause non-urgent alarms.

«green» absence of alarms. Normal functioning of the device.

REMOTE(R) informs the user about the status of the remote device. At the time being the remote

configuring of modems is not provided.

Ethernet The LED is lit upon an incorrect connection to the LAN, blink when it is active

The LED is lit upon the connection to the LAN at 100 Mbit/s.

The front panel of the external modem has:

• The “-48VDC” power connector. The connection of the modem to the 220 V power supply is

implemented using an external power supply unit;

• the “Monitor” connector to control the modem and store statistics;

• “PC” and “HUB” connectors to connect the modem to the LAN using a straight Patch Cord (to the PC

or HUB, respectively);

• the “DSL” connector to connect the modem to the leased physical line.

Date 17.03.04 page 9 of 29

Rules of connection settings

It is necessary to stick to the following rules while configuring the modems:

• One modem should be set in the “MASTER” mode and the other should have this mode disabled.

Usually the “MASTER” mode is enabled on the provider or central office side because in this mode

the modem can affect the connection parameters.

• The value of “ADAPTIVE” parameters should be equal on both modems.

• For 4,6M connection, the value of “OPERATE” parameters must be set to “Transparent” on both

modems.

The time of connections in ADAPTIVE mode depends on the current line conditional and can be up to 5

minutes.

Examples of the modem configuration (for every line).

Parameters Modem 1 Modem 2

MASTER ON OFF

ADAPTIVE OFF OFF

LINERATE 2320 2320

The connection is established at a speed of 2320 Kbit/s.

Parameters Modem 1 Modem 2

MASTER ON OFF

ADAPTIVE OFF OFF

LINERATE 192 192

The connection is established at a speed of 192 Kbit/s.

Rules of switching

Open the package and make sure that the delivery set is complete.

The delivery set

The delivery set includes:

• the subscriber access device (a modem);

• the power supply source (an AC adapter); (for MDS931AE-2)

• the cable for the connection to the line;

• Patch Cord UTP5

• User manual.

If any problems occur, address to the vendor.

Connection rules

During the connection of the modem stick to the following rules:

For external models

• connect the modem using the “straight” Patch Cord cable to the hub

through the HUB connector or to the PC through the PC connector. Only one device can be

connected to modem jack at same time.

• connect the modem, if necessary, to the serial port of the PC through

the “MONITOR” connector using the “straight” modem cable;

• connect the modem to the line using the “DSL” connector;

• connect the power supply unit to the AC power system;

• connect the modem to the power adapter using the “-48VDC” connector;

Date 17.03.04 page 10 of 29

• launch the hyper-terminal operation program on the PC.

For Rack Mount models

• insert modem card to shelf

• connect the modem using the “straight” Patch Cord cable to the hub

through the HUB connector or to the PC through the PC connector. Only one device can be

connected to modem jack at same time.

• connect the modem, if necessary, to the serial port of the PC through

the “MONITOR” shelf connector using the “straight” modem cable;

• connect the modem to the line using the “DSL” connector;

Communication parameters of the terminal configuration

Management of devices of Rack Mount type

The device rear panel contains the TTL management bus, organized according to the “point/multipoint”

scheme. The TTL-RS232 layer translator is on the rear panel of the device. The socket for the connection

to the terminal is on the rear panel as well. If ACU and CMU are installed in Sub-Rack, the management

socket is on the front panel.

To connect the terminal, it is necessary to use RS232 cable. While attaching the cable to the computer

COM-port, make sure the port is not occupied by the other device drivers (for example, mouse).

The terminal must be configured in the following way:

• Transmission rate: 9600 kbit/s;

• Transmission format: 8-N-1;

• Flow management: XON/XOFF;

• Terminal type: VT100.

At any one time only one device in the shelf can be logically connected to the management interface. The

device is chosen in accordance with the slot number, in which it is mounted. To choose the necessary

device, type <%SN>, where SN is the slot number.

Example: to select the modem, mounted in slot 3, type:

%03

The unit in the shelf displays %SN after the ECHO command is entered, where SN is the slot number.

After typing “ECHO”, the operator will receive a response from LTU devices, as it is shown below:

ECHO

%01 %02 %08 %10 %11 %12

Management of devices of Stand Alone type

The management terminal is connected to the MONITOR socket (DB9 type), which is on rear panels. The

requirements to the terminal configuration are analogous to those of Rack Mount devices. After the power

is on, the computer displays information about the device firmware loading. It is necessary to set the

following parameters to monitor the modem:

• transmission rate – 9600;

• data bits – 8;

• parity – none;

• number of stop bits – 1;

• flow control – XON/XOFF.

Date 17.03.04 page 11 of 29

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