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Summary of Contents for Creatix LC 144 VF
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Page 1: Data Transmission
LC 144 VF HIGH SPEED MODEM for • • Data Transmission • • Fax • • Speech Messages User Manual CREATIX Polymedia GmbH Fasanerieweg 15 66121 Saarbrücken Dieses Dokument wurde erstellt mit FrameMaker 4.0.4. - Page 2 © CREATIX Polymedia GmbH, Saarbrücken 1994 This handbook is protected by copyright. It must not be copied, reproduced, translated or transmitted in electronic media, in whole or in part. Accuracy of the information is not guaranteed. Any mention in this handbook of products made by other manufacturers is for information purposes only and represents no misuse of trademarks.
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Page 3: Table Of Contents
Table of contents Chapter 1 INTRODUCTION 1-1 What is a Modem ? 1-1 About this Modem 1-1 Special Features 1-2 General Description 1-2 Installation Instructions 1-2 Basic Adjustments 1-3 Chapter 2 AT COMMANDS: DATA MODEM 2-1 Guidelines for Using AT Commands 2-1 AT - Attention Code 2-4 The ESC Sequence 2-4 A - Answer Mode 2-4... - Page 4 Z – Reset/Load a Stored Profile 2-10 &C – M5 Control Line 2-10 &F – Loading the Factory Settings 2-10 &G – Guard Tone 2-11 &K – Flow Check 2-11 &M – Asynchronous Dialling / Synchronous Data Transmission 2-11 &Q – Synchronous / Asynchronous 2-11 &R –...
- Page 5 Chapter 3 DIALLING WITH V.25.Bis 3-1 Chapter 4 MODEM MESSAGES 4-1 Chapter 5 S-REGISTERS 5-1 S0 – Number of Ring Characters before Modem engages 5-2 S1 – Ring Character Counter 5-2 S2 – Esc Sequence Character 5-2 S3 – Carriage Return Character 5-2 S4 –...
- Page 6 S37 – Speed on the Telephone Line 5-11 S38 – Delay before Hanging Up 5-11 S39 – Flow Control 5-11 S40 – General Options 5-12 S41 – General Options 5-12 S46 – Authorising a Data Compression 5-13 S48 – Directing the V.42 Handshake 5-13 S80 –...
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Page 7: Introduction
INTRODUCTION Chapter 1 The Data Modem you have purchased represents the latest state of the art in data communication; its comprehensive facilities provide all you will need for profes- sional data transfer purposes. In data modem mode, you can achieve active transfer speeds of up to 57 600 bps and up to 14 400 bps in fax mode. -
Page 8: Special Features
Special Features • Fax Transmission and Reception at up to 14 400 bps • Automatic recall of Stored Telephone Numbers, with • Password Protection • Remote Configuration • Number Storage for 20 Telephone Numbers • Voice Mode for Onward Transfer of Voice •... -
Page 9: Basic Adjustments
Basic Adjustments To make it easier for you to use your modem, two basic settings have been made at the factory, which are suitable for the vast majority of connection systems. These settings can be activated with the “&F” command. In the fax mode or voice mode, the relevant software will carry out control of modem settings for you. - Page 10 1-4 INTRODUCTION...
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Page 11: At Commands: Data Modem
AT COMMANDS: Chapter 2 DATA MODEM Guidelines for Using AT Commands The modem is programmed with AT commands from the data terminal equipment (computer, PC or terminal) and thus also receives instructions to cover automatic dialling. The communications or fax software (Voice Software as an option) will carry out most of these operations for you, so that in general circumstances you do not need to have a detailed understanding of the commands which are described below. - Page 12 Table 1 Modem Commands Standard Commands Answer mode: Modem monitors telephone line Repeat last command line; entered without “AT” Switching between BELL/CCITT Standards at 300 or 1200 bps Enter automatic dialling Controlling repeat of modem commands on screen Determine type of modulation and speed Break off an existing connection Information on Modem product code Loudspeaker volume control...
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Page 13: Other Commands
Extended MNP- and V.42bis-Commands Determining Data Block Size with MNP operation AT\A Sending a Break signal to the remote modem AT\B Display stored telephone numbers AT\F Modem-modem flow check (XON/XOFF) AT\G Adjusting computer/modem speed to the modem/modem speed AT\J Effects of the Break Signal AT\K MNP Block/Stream mode AT\L... -
Page 14: At - Attention Code
AT - Attention Code The AT (Attention) Code, which introduces each command line, can be entered in upper-case or lower-case characters. Several commands (separated by spaces if desired) can be positioned one after another, in one line. A command line must end with the ASCII character which is stored in the S3 or S4 Register (or with both together). -
Page 15: A/ - Repeat Last Command Line
A/ - Repeat Last Command Line The A/ command causes the modem to repeat the command line which is stored in the command buffer, e.g. it will dial again, if the line is busy. This command is en- tered without AT and no reply is issued. A command line remains until the modem receives a new command. -
Page 16: E - Echo Function
Example of how to set up a Dial Command ATD T0 , P 02212971 With this, a private automatic branch exchange using tone-dialling dials zero, in order to obtain an exchange line. The modem then waits one second for the “line-free” tone so that it can dial the rest of the tele- phone number in pulse-dialling mode Example of the Automatic Dialling Function ATD T0 , P 02212971;H... -
Page 17: H - Switch Hook Check (Replace Handset)
H – Switch Hook Check (Replace Handset) The H command will break off the existing telephone line connection (the modem “hangs up”) and the connection to the remote modem is cut off. After the H com- mand, any other commands in the same line are ignored. This command can only be entered after an existing data link has been quitted by using the Esc sequence. -
Page 18: O - Return To On-Line Operation
O – Return to On-Line Operation The O command causes the modem to return to Online mode, which can be left temporarily, using the Esc sequence. P – Selecting Pulse Dialling This command specifies pulse-dialling as the standard dialling procedure, until the modem receives a Tone-dialling parameter in a dialling command, or until the T command is received. -
Page 19: Extended Connect Messages; Making Connections
ATW1 Once the connection has been established, messages follow se- quentially regarding the speed on the telephone line, the Error Pro- tocol and the interface speed ATW2 Once the connection has been established, only the speed on the telephone line is advised X –... -
Page 20: Z - Reset/Load A Stored Profile
Z – Reset/Load a Stored Profile The Zn command is used to carry out a Reset of an active configuration profile. In this procedure, the NVRAM values are written into the relevant Registers and the remaining parameters are changed again to the factory settings. You use the n pa- rameter to select one of the configuration profiles which has been stored with &W (n=0,1). -
Page 21: G - Guard Tone
&G – Guard Tone In the Answer mode (upper channel transmission), the unit can send a Guard tone which in certain circumstances is a requirement for connections to the UK from abroad. With Bell 212A and Bell 103, no Guard tone is transmitted. AT&G0,1 Guard tone Off (factory setting) AT&G2... -
Page 22: R - Control Lines S2 And M2
AT&Q5 The modem attempts to create a data link with Error correction. You can also specify in Register S36 whether the modem should go off-line or create an asynchronous link, if this is unsuccessful. AT&Q6 Asynchronous operation in “Normal” mode. (factory setting) &R –... -
Page 23: Displaying The Current Configuration
AT&T6 Enquiry for a remote digital test loop. For this, the Esc sequence must be entered in an existing connection and AT&T4 must be active at the remote modem AT&T7 Enquiry for a remote digital test loop with Self-Test (see &T6). The “Self-Test”... -
Page 24: Setting The Clock Signal In Synchronous Mode
&X – Setting the Clock Signal in Synchronous Mode The &X command determines down how the Clock Signal is produced. AT&X0 The modem produces its own send-pulse (factory setting) AT&X1 The modem awaits the send-pulse from the computer AT&X2 The modem produces the send-pulse from the pulse which it re- ceives (pulse loop). -
Page 25: F - Displaying The Telephone Number Store
\F – Displaying the Telephone Number Store The command AT\F displays the telephone numbers stored with AT&Z. \G – Modem/Modem Flow Check The \G command determines whether the modem/modem Flow Check is switched on during a “Normal” connection. This Flow Check supports the modem, if data are sent more quickly than they can be handled. -
Page 26: K - Type Of Break Control
\K – Type of Break Control The \K command determines how the modem by-passes with a Break signal. Table 3 Break Control Break by Remote Break by Computer in Break by Computer in Modem in “Normal” Data Mode ESC-Command Mode Connection No break to remote Delete buffer send Break... -
Page 27: S - Displaying The Configuration
AT\N3 Depending on the remote modem setting, the modem tries to make a Normal, MNP or V.42 connection (Auto reliable). Hardware Flow Check is authorised (factory setting). AT\N4 The modem tries to make a V.42 (Reliable) connection AT\N5 The modem tries to make an MNP (Reliable) connection. Some types of modem will not accept an MNP connection. -
Page 28: C - Authorise Data Compression
%C – Authorise Data Compression By using the %C command, you can select data compression for MNP or V.42. For the compression to work, the remote modem must also have the capability for data compression and a Reliable mode (\N2, \N3 or \N4) must be active. AT%C0 Compression not authorised AT%C1... -
Page 29: R - Remote Configuration
*R – Remote Configuration Once you have entered the command *R at the local modem, the remote modem can be configured via the telephone line. (Only a limited set of commands is active here). To use this facility, proceed as follows: - Enter ATS80=65 at the modem to be configured (the remote modem) in order to authorise remote configuration. -
Page 30: L - Displaying Callback Numbers
ENTER PASSWORD has appeared, a password which is stored in the local modem must be entered at the remote modem. ATS0=1 (so that the modem goes on-line) Provided the local modem recognizes a valid password, it will break off the con- nection and, after 10 seconds, it will dial the telephone number represented by the password in question. -
Page 31: Dialling With V.25.Bis
DIALLING WITH V.25.Bis Chapter 3 In order to change from the Hayes to V.25bis command setting and vice-versa, the value of Register 80 must be changed in each case. • ATS80=33 (Change from Hayes to V.25bis Commands) • CNLS80=1 (Change from V.25bis to Hayes Commands) Changes become active only after a modem reset (ATZ or CNLZ). - Page 32 Table 5 Commands and Modem Messages with V.25bis Command/Message Character Sequence Connection Request CRIxx...x;yy...y Call Number xx...x (dialling character sequence) Identification Number yy...y (identification number) Connection Request CRNxx...x Call Number xx...x (dialling character sequence) Polling AT commands CNLnn (nn=AT command syntax) Message with unsuccessful Connection request CFLxx (Call Failure Identification)
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Page 33: Modem Messages
MODEM MESSAGES Chapter 4 The modem responds to AT commands with Modem Messages. You can control their format (verbal or numeric) with the V command. In addition, the modem issues Connection Messages, when it recognizes activi- ties on the telephone line. The X command determines which messages are author- ised here. - Page 34 (09) CONNECT 0600 Where X1, X2, X3 or X4 is active, these messages show the interface (10) CONNECT 2400 speed, or the speed on the line, once the data connection has been (11) CONNECT 4800 made (12) CONNECT 9600 (13) CONNECT 7200 (14) CONNECT 12000 (15) CONNECT 14400 (16) CONNECT 19200...
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Page 35: S-Registers
S-REGISTERS Chapter 5 The modem has a series of S-Registers, in which the active configurations are stored. The contents of a number of Registers are stored in a non-volatile memory (NV- RAM), which can be interrogated with Z, &Y and &W commands. The syntax for entering and requesting Register values is given in the description of the S com- mand. -
Page 36: S0 - Number Of Ring Characters Before Modem Engages
Register Range Default. Description 0–255 sec Delay before “hanging up” S39* Bit-mapped Flow check S40* Bit-mapped 105 (69h) General options S41* Bit-mapped 131 (83h) General options S46* Bit-mapped Control data compression S48* Bit-mapped Control V.42 handshakes Bit-mapped Soft Switches 128 (40h) Handling Break character 0–255 Error Codes for NO CARRIER-messages... -
Page 37: S5 - Backspace Character
S5 – Backspace Character ASCII value for Backspace. Entering this will delete the character to the left of the cursor (and the last character in the command memory) and the cursor moves one space backwards. Range: 0-32, 127; factory setting: 8 (ASCII Backspace) S6 –... -
Page 38: S10 - Delay Between Carrier Loss And Hanging Up
S10 – Delay between Carrier Loss and Hanging Up The period of time, during which the modem waits after carrier loss, before it “hangs up”. This allows for a temporary loss of the carrier. The value must be greater than the value of the S9 Register, so that the modem does not “hang up” before recognizing the carrier. -
Page 39: S16 - Modem Test Options
S16 – Modem Test Options Factory setting: 0 Bit 0 Local analogue test loop OFF (factory setting) ON (&T1) Bit 1 Reserved Bit 2 Local digital test loop OFF (factory setting) ON (&T3) Bit 3 Status of remote digital test loop Bit 4 Status of a remote digital test loop, disengaged by the remote modem... -
Page 40: S19 - Autosync Register
S19 – Autosync Register Bit 0 Reserved Bit 1 Synchronous protocol HDLC Bit 2 Control of “Address Detector” Address Detector not authorised Address Detector authorised Bit 3 Non return to zero NRZ1 Bit 4 Mark idle flag or sync idle Bit 5-7 Reserved S20 –... -
Page 41: S22 - Loudspeaker/Authorised Modem Messages
S22 – Loudspeaker/Authorised Modem Messages Factory setting : 117 (75h) (01110101b) Bit 0,1 Volume Low (L0) (factory setting) Low (L1) Medium (L2) Loud (L3) Bit 2,3 Loudspeaker Condition Always OFF (M0) OFF after carrier recognition (M1) (factory setting) Always ON (M2) ON during Handshake (M3) Bit 4-6 Authorised modem messages... -
Page 42: S24 - Current Saving Switch
No parity (factory setting) Bit 6,7 Guard Tone No Guard Tone (&G0) (factory setting) No Guard Tone (&G1) Guard Tone 1800 Hz (&G2) S24 – Current Saving Switch This determines when the modem goes into a current saving switch, where it does not register activity at the interface, nor on the telephone line. -
Page 43: S28 - General Options
Impulse loop (&X2) Bit 6 CCITT/Bell Mode (B) (only at 300 and 1200 bps) CCITT (B0) (factory setting) Bell (B1) Bit 7 Reserved S28 – General Options Factory setting : Bit 0 V.23 Split Speed Not authorised (\W0) (factory setting) Authorised (\W1) Bit 1 V.23 Split Speed Direction... -
Page 44: S31 - General Options
S31 – General Options Factory setting : 194 (C2h) (11000010b) Bit 0 Reserved Bit 1 Controlling Automatic Speed Recognition (N) Automatic Speed Recognition OFF (N0) Automatic Speed Recognition ON (N1) (factory setting) Bit 2,3 Controlling Extended Connection Messages (W) Interface speed only (W0) (factory setting) All information (W1) Only modem speed (W2) Bit 4-7... -
Page 45: S37 - Speed On The Telephone Line
S37 – Speed on the Telephone Line Factory setting : Bit 0-3 This Register is dependent on the value of the F command. If invalid values are entered, the Register returns to the factory set- ting. Automatic speed recognition (F0) (factory setting) 300 bps (F1) Reserved 1200 bps (F4) -
Page 46: S40 - General Options
S40 – General Options Factory setting : 105 (69h) (01101001b) Bit 0 MNP 10 authorised MNP 10 not authorised (-K0) MNP 10 authorised (-K1) (factory setting) Bit 1 Voltage adjustment for radio telephones No adjustment possible (factory setting) Adjustment authorised M1 Bit 2 Speed of MNP Handshake Highest possible speed (*H0) (factory setting) -
Page 47: S46 - Authorising A Data Compression
S46 – Authorising a Data Compression Range: 136 or 138; factory setting: 138 S46=136 Error Correction Protocol without Data compression S46=138 Error Correction Protocol with Data compression (factory setting) S48 – Directing the V.42 Handshake Range: 0, 7 or 126; factory setting: 7 S48=0 No V.42 Handshake;... -
Page 48: S86 - Error Codes For No Carrier Messages
S86 – Error Codes for NO CARRIER Messages For every NO CARRIER message a value is written into this Register, which as- sists in discovering the cause of the error. In each case, the initial cause of the NO CARRIER message is recorded. S86=0 Normal break of connection;... -
Page 49: Technical Information
TECHNICAL INFORMATION Appendix Digital Interfaces To set up a connection between modem and computer/terminal (DTE = Data ter- minal equipment), an interface cable with the following features is required: ISO 2110 (SUB-D 25) to V.42 with V.28 level Table 8 Interface Cables to V.42 Direction Mod.-... -
Page 50: Led Indicators
LED Indicators The LED indicators show the operating condition of the modem: Display Meaning and Function (Operating Condition) POWER Modem is is ready for operation ONLINE Modem switched to transmission line Answer tone is present Modem has recognized carrier tone from remote modem Modem is ready to send Transmit request is present Computer is ready for operation... -
Page 51: Ccitt Recommendations
Start of Text Synchronous Character Lower Channel Sign Data Frame, made up of Data bits Length Start, Stop and Parity bits CCITT RECOMMENDATIONS V.21 300 bps, full-duplex, synchronous and asynchronous, 2-point Fre- quency Shift Keying V.22 1200 bps with Fallback to 600 bps, full-duplex, synchronous and asynchronous 4-point Frequency Shift Keying V.22bis 2400 bps with Fallback to 1200 bps, full-duplex, synchronous and... -
Page 52: Technical Specifications
V.28 Definition of the electrical characteristics of so-called non-sym- metrical polar lines V.29 9600 bps, dedicated line operation; Fallback to 7200 or 4800 bps. 16-point quadratic amplitude modulation V.32 9600, 4800 and 2400 bps with Fallback to 4800 bps dialling line or dedicated line operation;...
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