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Summary of Contents for Creatix SR 2496
- Page 1 SR 2496 User manual Dieses Dokument wurde erstellt mit FrameMaker 4.0.4.
- Page 2 © CREATIX Polymedia GmbH, Saarbrücken 1994 <mv205a0.121engl> 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
The +++ – Esc Sequence ........7 Table of Contents &C – Control Line M5 (DCD) ........7 &F – Loading Factory Settings........ 7 CHAPTER 1 INTRODUCTION....1 &G – Guard Tone ............ 8 &M – Asynchronous Dialling/Synchronous Installation Instructions ........... 1 Data Transmission ........ - Page 4 \Q – Serial Flow Check ......... 14 S11 – Dialling Speed..........21 \S – Displaying Current Modem Configuration ..15 S12 – Guard Time for the Esc Sequence ..... 21 S14 – Bit-Map Options.......... 22 \T – Inactivity Timer..........15 S16 –...
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Page 5: Chapter 1 Introduction
Installation Instructions INTRODUCTION Using the interface cable supplied, connect the In choosing the SR 2496 Modem, you have selected a ver- modem to a free COM interface on the computer satile unit which is equally suitable for data communication (25-pole or 9-pole with pins; if necessary, the adap- and fax transmission. -
Page 6: Chapter 2 Setting Up Connections
CHAPTER 2 SETTING UP transfer the telephone line to the telephone. (*A detailed de- scription of the individual commands is provided in Chapters CONNECTIONS 3 and 4) Typical Examples of Operating Modes There are various methods which you can use to set up a Automatic Dialling with AT Commands data connection with a remote modem. -
Page 7: Chapter 3 Standard At Commands
CHAPTER 3 individual commands. The backspace key is used for dele- STANDARD AT tion purposes. Commands may be issued in upper or lower COMMANDS case letters. When the modem is in the command mode it will automatically recognize data frameworks and data speeds. -
Page 8: Detailed Command Descriptions
A number of different commands can be included in one AT&F Loading a factory setting line, separated by spaces. The command line must end with AT&G Controlling a guard tone the ASCII character in the S3 or S4 Register (or both of AT&M Synchronous data transmission after asynchronous dialling... -
Page 9: A/ - Repeat Last Command Line
A/ – Repeat last Command line is 2 seconds). Pulse dialling is the standard setting. In the “Dial” command, it is possible to switch bet- The A/ command causes the modem to repeat the com- ween the two processes, if a mixed dialling pro- mand line which is stored in the command buffer. -
Page 10: I - Product Information
I – Product Information X – Extended Connection Messages - Setting up connections O – Return to On-Line Operation The X command determines which modem messages are The “O” command returns the modem to the On-line mode authorised. Messages 0 to 4 are basic and are issued with which it had left temporarily via the Esc sequence. -
Page 11: Y - Long Space Disconnect
met, a “NO CARRIER” message is issued. It does The +++ – Esc Sequence not recognize a dialling tone. The Esc- (Escape) sequence may be used to switch from an ATX4 The modem issues messages 0-7 and 10 and it re- existing data connection, from the data (On-line) mode to cognizes both dialling and engaged tones. -
Page 12: G - Guard Tone
Echo “On” Modem messages “On” &M1 This mode is used with terminals which can work either synchronously or asynchronously. The mo- Verbal messages dem switches to synchronous operation for the pe- Long Space Disconnect “Off” riod of data transmission. Dial blind &M2 As for &M1;... -
Page 13: T - Modem Test Functions
&T – Modem Test Functions &T5 A remote digital check loop from the remote mo- dem is not enabled. Various diagnostic commands are available to you, to limit &T6 Remote digital check loop. This checks the interac- communication problems. These commands are issued in tion between local computer, local modem, tele- “command”... -
Page 14: Setting The Clock Signal In
Bn, En, Fn, Ln, Mn, P(T), Qn, Vn, Xn, Yn, &Cn, &Gn, &Jn, AT&Y0 Loads profile 0 when the system is switched on &Mn, &Qn, &Rn, &Sn, &T4/&T5, &Xn AT&Y1 Loads profile 1 when the system is switched on Stored MNP Commands: &Z –... -
Page 15: Chapter 4 Mnp And V.42 Commands
CHAPTER 4 MNP AND V.42 Table 3 V.42bis Commands ATWn Authorising V.42 modem messages COMMANDS AT&Kn Local serial flow check AT&Qn Authorising V.42bis operation \A – Maximum MNP Block Size Table 2 MNP Commands The \A command determines the maximum size of data AT\A Maximum MNP Block Size blocks for MNP 4 and MNP 5 (but not for MNP 1 to 3). -
Page 16: D/ - Dialling A Stored Telephone Number
AT\C1 During the setting-up of an MNP connection, up to \G – Flow Check (XON/XOFF) 200 characters are stored in the buffer. The Fall- The \G command determines whether the “Modem-to-Mo- back character is not recognized. If the buffer is fil- dem”... -
Page 17: K - Type Of Break Control
the correct speed on the basis of modem messa- Break to As \K1 As \K2 As \K2 ges (autobaud) or can adjust its speed to input remote modem characters (factory setting). As \K0 As \K0 Break in data Break in data \K –... -
Page 18: O - Setting Up An Mnp Connection During
AT\N3 Depending on the remote modem setting, the mo- command: AT\P1T0681982120 dem will attempt to set up a normal, MNP or V.42 effect: The tone dialling number 0681 982120 is stored in connection (Auto Reliable Mode). Hardware flow number memory 1. check is authorised (factory setting). -
Page 19: S - Displaying Current Modem Configuration
sion. RTS “on”: modem transmits data). (Factory DATA ECHO AT\E0 setting). INACT TIMER AT\T000 AUTO RETRAIN AT%E0 AT\Q4 Uni-directional XON/XOFF flow check. As for \Q1 COMPRESSION AT%C1 but here the modem does not react to XON/XOFF MAX BLK SIZE AT\A3 signals from the computer. -
Page 20: Mnp Switching Messages
then wait 12 seconds for an enquiry from the remote modem ting, XON/XOFF characters from the local compu- for an MNP connection. If this attempt at a connection is un- ter are transmitted to the remote modem and successful, the modem will return to a normal connection. If XON/XOFF characters received from the remote an MNP connection already exists, the \U command has no modem are transmitted to the local computer (the... -
Page 21: C - Authorise Data Compression
setting up of the MNP connection. The factory setting is n = &K – Determining Flow Check 13 (Enter key). The command AT&K determines the flow check control for modem/computer with V.42 connections (see also AT\Q %C – Authorise Data Compression Command). -
Page 22: Q - Using The V.42Bis Standard
&Q – Using the V.42bis Standard The AT&Q command is used to establish a connection with data compression as per V.42bis. AT&Q4 Modem message ERROR. AT&Q5 This instructs the modem to set up a data connec- tion as per V.42bis. To prevent a V.42bis connec- tion, you should issue the command &Q0, &Q3 or &Q6 (or change the register values S36, S46 and S48). -
Page 23: Chapter 5 S-Registers
CHAPTER 5 S-REGISTERS Register Range Default Description (Read only) Bit-map options The modem has S registers for the storage of active confi- Not in use gurations. The contents of a number of registers are filed in (Read only) Modem test options a non-volatile memory (NVRAM) which can be interrogated Not in use via the Z-, &Y- and &W- commands. -
Page 24: Standard S Registers
Standard S Registers S3 – Character for Carriage Return This is the ASCII value of the carriage return, which is used to complete command lines and modem messages. SO – Ring Character before Modem engages Range: 0 to 127 The value in this Register indicates how many ring charac- Factory setting: 3 (ASCII CR, carriage return) ters will occur before the modem automatically answers a... -
Page 25: S7 - Waiting For The Carrier Signal
S7 – Waiting for the Carrier Signal be longer than the Guard time. Otherwise, the modem cannot recognize the Esc sequence. The S7 Register determines how long the modem will wait Where the Register value is zero, the modem will always for a carrier signal from the remote modem, before it “hangs go into command mode after 3 successive Esc characters. -
Page 26: S16 - Bit-Map Options
S16 – Bit-Map Options Value Description DCD always on (&C0) Value Description DCD on when carrier is recognized (&C1; Factory setting) Local analogue test loop off (factory setting) DSR always n (&S0; factory setting Local analogue test loop on (&T1) In data mode “receiver lifted”... -
Page 27: S23 - Bit-Map Options
S23 – Bit-Map Options S27 – Bit-Map Options Value Value Description Description Remote digital test loop for remote modem not authorised (&T5) Asynchronous (&M0; factory setting) Remote digital test loop for remote modem authorised (&T4; fac- Synchronous mode after dialling (&M1) tory setting) Supports synchronous terminals (&M2) Transfer speed 0 to110 bps... -
Page 28: Mnp Registers
MNP Registers S38 – Bit-Map Options Value Description No buffer (\C0; factory setting) S36 – Bit-Map Options Buffer; 4 sec or 200 characters or until a packet is recognized (\C1) Value Description As 0 but on receipt of a Fallback character returns to normal Standard (non-MNP) connection (\N0) operation (\C2) Direct connection only (\N1;... -
Page 29: Registers
V.42 Registers S36 – Controlling the Setting up of Connections Range: 0 to 7 (ASCII) Factory setting: Modem disconnects Modem remains on-line and starts data transmis- sion in asynchronous direct mode Reserved As 1 but with buffer (&Q0) Modem seeks a connection with the V.42 alterna- tive protocol (compatible with MNP 2-5). -
Page 30: Chapter 6 Modem Messages
CHAPTER 6 MODEM Active X Command Nume- Description Verbal MESSAGES X0 X1 X2 X3 X4 ERROR Modem has recog- nized an • • • • • error in command line and goes Modem messages are a response by the modem to the into command mode computer, after a modem command has been entered. - Page 31 Table 8 MNP Messages (see \V command) Table 9 V.42 Modem Messages (see W command) Numeric Active X Command Active X Command Nume- Description Description Verbal Verbal MNP V.42 X0 X1 X2 X3 X4 X0 X1 X2 X3 X4 CONNECT Modem has set up MNP data •...
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Page 32: Chapter 7 Trouble- Shooting
• No connection to remote modem: Have you entered the correct number? Do the dialling para- If a fault occurs while you are using your SR 2496 Modem, meters match the requirements of your private automatic the following list of the most frequent faults, with the correc- branch exchange? Is it necessary, for example, to dial a tive measures to be taken, will be of help to you.
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