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KE LOGEM LGH 28.8D1 User Manual

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Operation Manual
V.34 - Modems
LOGEM
®
928
LOGEM
®
LGM 28.8D1
LOGEM
®
LGH 28.8D1
© Copyright 1997 ke Kommunikations-Elektronik GmbH & Co.
Technical Status 07/97
Changes may be made without further notice.
Editor:
ke Kommunikations-Elektronik GmbH & Co.
Kabelkamp 20
30179 Hannover/Germany
Phone: ++49 (511) 67 47 - 0
Fax: ++49 (511) 67 47 - 376
Internet: http://www.ke-online.de
T-Online: *ke #
Ordering Number: 371 977 46

Table of Contents

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KE LOGEM LGH 28.8D1 Specifications

General IconGeneral
BrandKE
ModelLOGEM LGH 28.8D1
CategoryModem
LanguageEnglish

Summary

Modem Description

Transmission Procedures

Lists ITU-T recommendations for modem operation speeds and modes.

AT Commands

Explains the Hayes standard command set for modem control and configuration.

Data Compression and Data Protection

Details data compression and protection protocols like V.42bis and MNP.

Front Panel LOGEM ® 928

Details the function of each LED and button on the front panel.

Installation and Commissioning (Standalone Versions)

Step-by-step guide for setting up standalone modem versions.

Switches Description

Table Software/Compatible/Mixed Mode

Compares settings for three different modem operation modes.

Software Mode Switches Description

Details predefined configurations and user settings for software mode.

Transmit and Receive Levels (Standalone Versions)

Explains how to adjust transmit and receive levels using jumpers.

Country Setting for LGH 28.8D1

Describes how to set country-specific adjustments using jumpers.

AT Commands

General

Introduces the Hayes standard AT command set and conventions.

Telephone and Dialing Features

Covers dialing commands, answer modes, and number storage.

Changing of Register Contents

Lists modem registers and how to modify their values.

Password Protection

Explains password protection features and operation modes.

Register Allocation

Modem Memory Locations

Describes ROM, EEPROM, and RAM memory types and their usage.

Register Description

Provides detailed explanations for various modem registers.

V.25bis Commands

Reports

Lists V.25bis command reports like INC, VAL, INV, DLC.

Dialing and Telephone Functions

Details commands for connecting, disregarding calls, and dialing.

Modem Configuration with V.25bis

Explains modem configuration using the DNL command set.

Dial Backup Features

Function of the Dial Backup Board

Explains the purpose of the dial backup board for leased line operation.

Installation of the DBU Board (Standalone Version)

Step-by-step guide for installing the DBU board in standalone models.

Telephone Access Line Selection

Details the allocation of telephone lines on the 96pole connector.

Applications

Remote Configuration Features

Covers parameters, passwords, and data protection for remote configuration.

Leased Line Operation (Standalone Version)

Describes different 2-wire and 4-wire leased line operation modes.

Lightning and Overvoltage Protection

Discusses protection against electrical surges and lightning.

Appendix

Appendix A Basic Settings

Details the default configurations (Basic Setting 0, 1, 8).

Appendix C3 V.24 Interface Allocations

Lists pin assignments for the V.24 interface.

Appendix F Technical Data

Provides technical specifications like dimensions, temperature, and power.

Appendix G Index

Alphabetical list of terms and their corresponding page numbers.

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