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Digicom SNM70 User Manual

Central site modem
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SNM70
Central Site Modem
USER'S MANUAL
Cod. 7D1114 rev. 1.0 02/98

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Summary of Contents for Digicom SNM70

  • Page 1 SNM70 Central Site Modem USER'S MANUAL Cod. 7D1114 rev. 1.0 02/98...
  • Page 2 http://www.digicom.it...

  • Page 3: Declaration Of Conformity

    Index INDEX PREFACE GENERALITY 1.1. PRODUCT PACKAGE CONTENTS 1.2. PRODUCT FEATURES INSTALLATION 2.1. HARDWARE INSTALLATION 2.2. SOFTWARE INSTALLATION 2.2.1. WINDOWS 95/NT4.0 2.3. FRONT PANEL Fig. 3.1. SNM 70 Front view 2.4. REAR PANEL Fig. 3.2. SNM 70 Back side view DESCRIPTION DUAL MODEM SETUP 3.1.

  • Page 4: Enviromental Conditions

    All rights reserved; no part of this publication may be reproduced, stored in a retrieval system, or trasmitted in any form or by any means, electronic, otherwise, without the prior written permission of Digicom S.p.A.. The contents of this booklet may be modified without prior permission.

  • Page 5: Cleaning The Terminal

    Preface Please contact authorized people to change the battery. The battery is polarized, please do not reverse the end terminals. Battery are considered dangerous weste goods and be destroyed following the present regulation. CLEANING THE TERMINAL Use a clean and soft cloth. Wet the cloth with water or natural detergent if it is necessary to remove any stains.

  • Page 6: Dear Customer

    LANs, BBSs or PC’s. The SNM70 K56Flex host modem is a direct replacement for the slower 33.6 V34bis modem. At the host site (or remote LAN access node) the SNM-70 connects to the telephone network via a single ISDN Basic rate Interface (BRI).

  • Page 7: Hardware Installation

    MACINTOSH Driver ARA/Open Transport Make a copy of the SNM70 driver file from the Floppy Disk or the CD ROM to your hard disk in the folder Modem Script (System Folder- Extension-Modem Script).

  • Page 8: Front Panel

    (eg. A or D), then click the button OK 6. From the list select the driver to use (e.g. Digicom SNM 70) and click Next 7. Select the COM port where your modem is connected, then clik Next and then Finish Your modem is installed and ready to make the first connection.

  • Page 9: Rear Panel

    Installation SNM70 CENTRAL SITE MODEM Fig.3.1. SNM 70 Front view 2.4. REAR PANEL On the rear panel is the power switch, the two V24 interface connectors and the RJ45 ISDN network connector. RS232-V.24/V.28 female serial interface connector of the modem 1 (A) RS232-V.24/V.28 female serial interface connector of the modem 2 (B)
  • Page 10 DESCRIPTION DUAL MODEM SETUP The SNM70 has dual, fully featured, digital K56flex modems inside one box: infact on the rear pannel you can see the RS232 serial interface connector of modem 1 (or A) indicated as JC and the RS232 serial interface connector of modem 2 (or B) indicated as JA.

  • Page 11: Automode Enable

    Description Answer incoming data call Cause the modem to go off hook and attempt a handshake in answer mode Repeat last command Cause the modem to repeat the last AT command. This command is neither preceded by AT not followed by CR Dial Command Dial number Dial one of the four stored phone numbers (n=0-3) in the modem non volately memory (See &z Command)
  • Page 12 Description READ/WRITE A REGISTER Sn=x Write value x to S Register n. Read value at S Register n. VERBOS RESULT CODE Result code display as digit (short form). Result code display as words (extention form). RESULT CODE SHORT & EXTENDED FORM SUMMARY SHORT EXTENDED SHORT...
  • Page 13 Description REPORT AT CONNECTION When connected the modem displays: CONNECT and the digital rate. When connected the modem displays: Line Speed,Error Correction Protocol (if any),Digital rate When connected the modem displays: CONNECT and line speed. Default=W2 DIAL TONE DETECTION Busy and dial tone detect disable. OK and ERROR code enable. Busy and dial tone detect disable.

  • Page 14: Ccompression Control

    Description MODULATION POSSIBLE RATE bps V.21 V.22 1200 V.22bis 2400 or 1200 V.23 1200 V.32 9600 or 4800 V.32bis from 14400 to 4800 V.34 from 33600 to 2400 K56Flex from 56000 to 32000 Automode: see the ATN command RX speed min/max: These parameters permit to define, within a modulation standard, the minimum and maximum receive rate.
  • Page 15 Description This special file transfer uses a simple ASCII protocol at 115.200bit/s, 8 bit, no parity, 1 stop bit and hardware flow controll. Using an ASCII file tranfer check the following parameter values: Pace character=0 Line pacing=0 Character pacing=0 Upgrade starts.after this command, followed by a simple instruction coming from the modem.
  • Page 16 Description &Q OPERATING MODE SELECTION &Q0 Asyncronous direct mode &Q5 Operation with error correction. It is automatically selected with \N command (different fron 0 and 1) &Q6 Asynchronous with buffer enabled (AT/N0) Default=&Q5 &S C107 (DATA SET READY OPTION) &S0 DSR will remain ON all the times.
  • Page 17 Description &Z5 STORE MULTISUBSCRIBER NUMBER (MSN) This command enables the the storing of own telephone number for the MultiSubscriber Number function. &Z5=nnnn where “nnnn” is composed of prefix + number (p.e. 331702611) &Z5? show the stored MultiSubscriber number To enable the MultiSubscriber Number function, please also make reference to the AT*M command.
  • Page 18 Description 1) The first state is where the modem receives a break from the Computer when the modem is operating in data transfer mode. Enter on-line command mode, no break sent to remote modem. Clear data buffer and send break to remote modem. Same as 0.
  • Page 19 Description Caller Identification function (CALLER ID) The CALLER ID function is used to identify the originate of an incoming call. In order for this feature to work, both the originate and the answer SNM 70 must have their CALLER ID feature enable.
  • Page 20 Description Subaddress function disable Subaddress function enable To insert the Subaddress field into SNM 70, please make reference to the AT&Z6 command. Store: S100 (bit2) Default=*S0 Port Selector This command selects the serial port to be activated on answering an incoming call If the B1 and B2 channels are available, the first incoming call is addressed to the serial port JC.

  • Page 21: S5 Backspace Character

    Description 3.2.1. S REGISTER DESCRIPTION RING DETECTION FOR CONNECTION This register defines the number of RINGs to detect before connecting. Value Unit Function RING automatic answer disabled RING automatic answer enabled; connection takes place after detecting the set number of RING Default=0 Type=storable RING COUNTER...

  • Page 22: S18 Test Timer

    Description PAUSE TIME FOR CHARACTER Value Unit Function 0-255 sec. Pause time for character Default=2 Type=storable ANSWER TONE DETECTION Value Unit Function 1-255 100msec. Detection of answer tone Default=6 Type=storable CARRIER DETECT RESPONSE TIME Value Unit Function 1-255 100msec. Sets the length of time, in tenths of a second, that the modem waits before hanging up after a loss of carrier.
  • Page 23 Description ADJUST TRNSMISSION LEVEL IN SWITCHED LINE Value Unit Function -3-15 This register checks the modem transmission level in switched line Default=10 ADJUST TRANSMISSION LEVEL IN FAX MODE Value Unit Function -3-15 This register checks the modem transmission level in fax mode. Default=10 Note: Each change of S91 and S92 is automatically stored into the modem non volatile memory.

  • Page 24: Factory Configurations

    Description 3.3. FACTORY CONFIGURATIONS SNM 70 is preconfigured with 2 factory default configurations for quick and easy set up. 3.3.1. MODEM FACTORY CONFIGURATION ° CONFIGURATION N 0 (loadable with AT&F0) This configuration permits a connection up to 56000bit/s (K56Flex) with error correction , compression enabled and automatic answer.
  • Page 25 PC. 4.2. DIAGNOSTIC ACTIVATION The SNM70 has a very powerfull command set to self-test the modem, the line, and the remote equipment. In this chapter you can find some simple procedures to implement the diagnostic features. IMPORTANT To activate the loop the modem must be set up without error correction (AT\N0).

  • Page 26: Local Analog Loopback With Self Test

    Diagnostic 4.2.3. LOCAL ANALOG LOOPBACK WITH SELF TEST The objective of this test is to verify the modem itself using an internal test pattern. When the modem is Off Line type the command: AT&T8. This command forces the modem in local analog loop mode, sends a test pattern and checks the receive stream.

  • Page 27: Warranty Clauses

    Declaration CE of Conformity DECLARATION OF CONFORMITY this product satisfies the basic requirements of Electromagnetic Compatibility and Safety of the below indicated Directive: 91/263/EEC of 29 april 1991 (Directive 93/68/CEE of july 22,1993 and Directive 93/97/ CEE of 29 october 1993). CHECK REPORT The equipment has been successfully tested according to the check procedure indicated on the inside back cover of the user's manual.

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