1. Manuals
  2. Brands
  3. Dataplex Manuals
  4. Modem
  5. DPX-213
  6. User manual

Dataplex DPX-213 User Manual

2400/1200/300bps mnp-5 data leased line & dial network modem
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
DPX-213
LOW POWER DATA MODEM

USER MANUAL

2400/1200/300bps MNP-5 Data
Leased Line & Dial Network Modem

Advertisement

Table of Contents
loading

Summary of Contents for Dataplex DPX-213

  • Page 1: User Manual

    DPX-213 LOW POWER DATA MODEM USER MANUAL 2400/1200/300bps MNP-5 Data Leased Line & Dial Network Modem...
  • Page 2 This manual is copyrighted © 1994 by Dataplex Pty. Ltd. with all rights reserved. This manual cannot be reproduced in any form without the prior written consent of Dataplex Pty. Ltd. No patent liability is assumed with respect to the use of the information contained in this manual.

  • Page 3: Table Of Contents

    INSTALLATION 2.1 Setting the Internal Jumpers 2.2 Connecting the DPX-213 to the Telephone Line 2.3 Connecting a Terminal or Computer to the DPX-213 2.4 Front Panel Indicators 2.5 Testing Your Connections 2.6 Setting Your PC for Speed and Character Format 2.7 Making a Connection...
  • Page 4 CONTENTS APPLICATIONS 5.1 Resetting the Modem 5.2 Operating Modes 5.3 Asynchronous Modes 5.4 Synchronous Modes 5.5 Leased Line Operation 5.6 Extended Character Formats 5.7 PABX Operating Problems 5.8 Low Power/Standby Mode 5.9 Alarm Mode 5.10 Password Mode 5.11 Remote Configuration DATA TRANSFER 6.1 Error Control 6.2 Flow Control...
  • Page 5 Appendix D Interface Connections Appendix E AT Command Set Summary FIGURES Figure 2.1 Rear Panel Layout Figure 2.2 DPX-213 Jumper Locations Figure 2.3 Front Panel Layout Figure 5.1 Telecom 604 Plug Figure 6.1 Flow Control Buffers Figure 7.1 Local Analog Loopback Figure 7.2...

  • Page 6: Document No 113-213-01 Rev

    HIS PAGE INTENTIONALLY LEFT BLANK Document No 113-213-01 Rev 1.0...

  • Page 7: Introduction

    Welcome to the Dataplex DPX-213. Whether you are familiar with dial network modems or not, you will find the DPX-213 simple to operate. The modem offers advanced features only found in quality high-end products and opens the door to a new world of data communications.

  • Page 8: About The Manual

    Section 3 on modem basics and Section 7 on Applications. The manual is divided into 12 sections as follows: Section 1 Introduction describes the DPX-213 features and explains how to use this manual. Section 2 Installation explains the purpose of each indicator, switch and connector plus how to connect your modem to the computer and telephone line.

  • Page 9: The Dpx-213 Modem

    Section 1 INTRODUCTION 1.4 The DPX-213 Modem The DPX-213 is designed and built in Australia and offers: • • Low Power: Standby current < 100uA. Data operation at 300, 1200, and 2400 bps. • Operating current < 100mA Auto-ranging on originate and answer at •...
  • Page 10 INTRODUCTION Section 1 HIS PAGE INTENTIONALLY LEFT BLANK Copyright (C) Dataplex Pty Ltd...

  • Page 11: Installation

    Figure 2.1 Rear Panel Layout The rear panel of the DPX-213 has a single RJ-11 connector for line, together with a 25 Pin V.24/28 DCE connector. The supplied line cord connects from the RJ-11 of the DPX- 213 to the telephone wall socket. A description of the RJ-11 connectors is given in Appendix D.

  • Page 12: Connecting The Dpx-213 To The Telephone Line

    Removing this jumper stops the V.24 DTR input which controls the standby mode of the DPX-213. Without this jumper set, the unit will not wake up on raise of DTR and will not be held active by the DTR when the unit is placed in standby mode.

  • Page 13: Connecting A Terminal Or Computer To The Dpx-213

    CCITT V.24, V.28 and EIA RS-232C for modems. The DPX- 213 operates as Data Circuit-terminating Equipment (DCE). If you wish to connect the DPX-213 to a terminal or computer with a serial port configured as Data Terminal Equipment (DTE), then a "straight through" cable connecting corresponding pins of the serial ports should work.

  • Page 14: Testing Your Connections

    With your terminal or computer connected and operating, the DTR LED should light. You can now perform a quick test to determine if you have setup the DPX-213 correctly. After connecting your terminal or PC to the modem, power the system up and start your communications or terminal emulation package.

  • Page 15: Making A Connection

    Section on Testing and Diagnostics. The DPX-213 comes with a default configuration suitable for many applications. As a "soft" configured product, it is possible to make errors by loading a conflicting configuration, causing unpredictable operation.

  • Page 16: Closing A Connection

    255 seconds. Basically, a call can be terminated in several ways : • Hitting any key on the terminal; • Detection of busy tone by the DPX-213; • Time-out of the modem (S-Register 7); • Loss of carrier; ath0K •...

  • Page 17: Trouble Shooting

    2.10 Trouble Shooting If you are sure you have the correct cables, terminal speed and ASCII character format, but are unable to get the OK response from typing AT, the DPX-213 may have an invalid set- up string stored in the NVRAM.
  • Page 18 INSTALLATION Section 2 HIS PAGE INTENTIONALLY LEFT BLANK Copyright (C) Dataplex Pty Ltd...

  • Page 19: Before You Start

    BEFORE YOU START 3.0 BEFORE YOU START The DPX-213 is a combined soft-strapped and link selectable modem. There are number of internal links which can be used to select Async/Sync operation, DTR wakeup and LED operation. All other parameters are set by software commands from an attached asynchronous terminal and then stored in Non Volatile Random Access Memory (NVRAM).

  • Page 20: Dial-Up Line And Leased Line Support

    Section 3 3.4 Dial-up Line and Leased Line Support The DPX-213 cannot share the same line as your normal telephone. It can only be used in isolation. NOTE: Telephones with Mode 3 connectors should not be used with this equipment.

  • Page 21: Escape Sequence

    BEFORE YOU START 3.7 Escape Sequence While off-line, the DPX-213 is in the Command State and all characters typed at your keyboard are scanned by the command interpreter awaiting AT commands. Once on-line, whatever is typed is sent to the remote modem. In order to get back in touch with the local command interpreter, perhaps to hang up or to change parameters, an escape sequence must be sent.
  • Page 22 BEFORE YOU START Section 3 HIS PAGE INTENTIONALLY LEFT BLANK Copyright (C) Dataplex Pty Ltd...

  • Page 23: Command Set

    The attention code, the letters 'AT', must precede all command lines to the DPX-213. This code may be in either upper or lower case. The modem uses the AT characters to detect the baud rate and character format of the incoming data. In this way, each command line can be at a different baud rate if desired.

  • Page 24: Attention Code Syntax

    Commands take a variable time to execute, depending on the length of the command line and the type of command. The DPX-213 also takes a short period (750 microseconds) after the end of one command (the transmission of the result code) before it is ready to accept the next command.

  • Page 25: Dpx-213 Operating States

    ERROR code. Result Codes After the DPX-213 has executed each command line, it returns a result code to show the status of the command. The result is in the form of digits (0 to 233) or text. Results displayed in digit format are often used when the modem is being controlled by a computer.
  • Page 26 1. Carriage Return Detected If this is part of a dial command, the DPX-213 will execute the following sequence: go off-hook, look for dial tone (unless set to blind dial) and then proceed to place the call.
  • Page 27 4. DTR Dropped (provided DTR is not forced on and AT&D2 or AT&D3 is set) The modem will execute the following sequence: send a 'NO CARRIER' message to the DTE, go on-hook and return to Idle State. Copyright (C) Dataplex Pty Ltd...

  • Page 28: At Command Set

    The modem link is preserved and the user communicates with the local modem and not the remote DPX-213. All data sent by the remote modem is ignored but carrier is still monitored and the message "NO CARRIER" will be issued if loss of carrier is detected.

  • Page 29: Table

    ATFn command, the user can force the line speed and modulation to a predetermined format instead of relying on the autoranging capabilities of the DPX-213. The command is useful when placing international calls to Bell modems. Refer to the ATF command description for full details on autoranging and other settings.

  • Page 30: Table

    Acceptable dial digits are the numbers 0-9 (zero through to nine) and the symbols * # (for tone dialling only). Acceptable dial modifiers are Nn P T and , (comma). The DPX-213 ignores any other characters in the dial command. These can be freely used atd1234567K to improve readability.

  • Page 31: Ate Command Echo

    The default setting is for check for tone dialling. If ATX4 (check for dial tone) is set, the DPX-213 will dial the first digit of a dial string in tone mode and recheck for dial tone. If dial tone is still present, the entire number will be dialled in pulse mode, otherwise, the rest of the number will be dialled in tone mode.
  • Page 32 ATF6 - Similar to ATF0 except that once a connection is established, forces DTE speed to line. The DPX-213 will autorange on both answer or originate. Set ATF0 at the answering modem and it will adjust speed automatically to accommodate the incoming call. If the Constant Speed Interface (AT&I1) is set, the DTE speed will be the last autobaud speed...
  • Page 33 Transfer State. If the modem is not online, the modem will attempt to originate a call (go off hook and wait for answer tone). The modem ignores all commands in a command line following the Originate command. ATO0 - Return to On-line State or originate a call. Copyright (C) Dataplex Pty Ltd 4-11...
  • Page 34 Default : None If ATX3 (do not listen for dial tone) is set, ATP causes the DPX-213 to dial any further dial commands with decadic pulses. If ATX4 (check for dial tone) is set, then regardless of the state of the ATP command, the DPX-213 will dial the first digit of a dial string in tone mode and recheck for dial tone.
  • Page 35 Parameters : 0 or 1 Default : 1 (Verbose Mode) Determines whether the DPX-213 returns result codes from commands to the DTE in text format or digit/numerical format (Verbose or Terse). Most communications programs use digit responses to determine command status.

  • Page 36: Response Codes

    PABX's. The auto tone or pulse dial detection feature of the DPX-213 is only enabled when the modem is not blind dialling and when it is configured to detect dial tone.
  • Page 37 AT&D1 - Modem set to Command State when DTR drops (as for escape sequence). AT&D2 - Modem set to on-hook and returns to Command State when DTR drops (ATH). AT&D3 - Modem initializes (executes ATZ) when DTR falls. Copyright (C) Dataplex Pty Ltd 4-15...
  • Page 38 Default : 0 (MNP disabled) AT&En enables or disables error correction and data compression in the DPX-213. When used with the AT&I1 Constant Speed Interface command, the terminal can operate at 4800 bps to 9,600 bps to take full advantage of data compression. Error control or data compression is not supported at V.21 (300 bps) speeds and in one of the two leased line...
  • Page 39 For example, if your terminal is set for 2400 bps and the DPX-213 can only establish a link at 1200 bps, the message "CONNECT 1200" will be displayed at the 2400 bps autobaud rate and then the interface will change to 1200 bps.
  • Page 40 AT&K1 and AT&K2. Be sure to terminate RTS and CTS correctly when using this command. NOTE: Whenever AT&K2 or 3 are invoked, the RTS and CTS leads must be correctly driven and not left floating in the interface cable. 4-18 Copyright (C) Dataplex Pty Ltd...
  • Page 41 Leased line operation with different manufacturers products may not be entirely successful. The DPX-213 supports leased line operation at 1200 and 2400 bps in both AT&L0 and AT&L1 modes. Data transfer at 300 bps is only supported in AT&L1 mode and data transfer at 1200/75 V.23 is not supported in either leased line mode.
  • Page 42 Default : 1 (CCITT Make/Break Ratio) This command allows the user to select the pulse dialling make to break ratio. AT&PO - Bell Make/Break Ratio (US setting). AT&P1 - CCITT Make/Break Ratio (Australian setting). 4-20 Copyright (C) Dataplex Pty Ltd...
  • Page 43 DTE via the DTE buffer. The DTE will be operating in a mode that enables it to respond to both RTS/CTS and Xon/off flow control. In this way both the local modem and the remote DTE may flow control the far modem and DTE. Copyright (C) Dataplex Pty Ltd 4-21...
  • Page 44 Default : None Whenever power is applied to the DPX-213, or the modem is reset (ATZ), the status registers are loaded with values saved in the non volatile RAM. AT&W allows a particular configuration to be saved in the non volatile RAM and then reloaded the next time power is applied to the modem or the reset (ATZ) command is issued.
  • Page 45 Parameters : 0 to 3 Default : 0 (Alarm off) This command enables the Alarm function on the DPX-213. AT*A0 - Alarm function disabled. AT*A1 - Enabling this command will cause the modem to dial the number stored in location 0 upon "wake up". When connected, the modem will send the string stored in location 1.
  • Page 46 AT*G0 - Causes the DPX-213 to be silent when calling. AT*G1 - Enables an interrupted 1300 Hz tone to be sent by the calling DPX-213 after dialling and before the remote modem carrier is detected.
  • Page 47 Default : 0 (Disabled) This command enables and disables the remote configuration option. When remote configuration is enabled a remote user can modify the configuration on the DPX-213 using the 'pause' 'pause' escape sequence or view configuration/setups of the remote modem.
  • Page 48 AT COMMAND SET Section 4 HIS PAGE INTENTIONALLY LEFT BLANK 4-26 Copyright (C) Dataplex Pty Ltd...

  • Page 49: Applications

    S-registers from NVRAM and then loads the factory defaults from EPROM. 5.2 Operating Modes There are 4 operating modes on the DPX-213. The first two are asynchronous only and the remaining two are synchronous operating modes. NOTE: There is some interaction between the Data Terminal Ready (DTR) AT&Dn commands and the AT&Mn operating Mode commands (as shown in the AT&Mn...

  • Page 50: Asynchronous Modes

    Mode 0 Asynchronous Mode 1 Asynchronous This mode allows the DPX-213 to dial the number stored in location zero on the rise of DTR. If no dialling is desired, the user should ensure location zero is empty for the originating modem or have R stored (for reverse mode) in location zero at the answering end.

  • Page 51: Synchronous Modes

    Register S25 before examining the DTR line. This allows time to switch over to a synchronous DTE. If DTR is high (ON) when S25 expires, the DPX-213 continues in Synchronous Mode with clocks at the speed of the connection. If DTR is low (OFF), then the modem takes the action specified by the AT&D setting.

  • Page 52: Leased Line Operation

    APPLICATIONS 5.5 Leased Line Operation The DPX-213 supports leased line operation. This mode (AT&L1) follows the CCITT recommendations for V.22 and V.22bis and is useful for sync and async applications with many manufacturers products. The AT&L1 command does not support Constant Speed Interface or MNP operation.

  • Page 53: Extended Character Formats

    The V.22bis standard allows for character lengths from eight to eleven bits including start and stop bits. The DPX-213 supports 8 to 11 bit characters through the use of register S30. The Constant Speed Interface (CSI) and MNP /V42 features only support ten bit characters.

  • Page 54: Low Power/Standby Mode

    Section 5 APPLICATIONS 5.8 Low Power/Standby Mode The DPX-213 has a low power feature that allows the unit to be placed in a state where it will draw no current. There are 2 methods of entering this state, namely: •...

  • Page 55: Remote Configuration

    The central site can then call in and examine S-registers with the AT*C command or reconfigure the DPX-213. The central site should execute AT*R0 before it hangs up or the remote modem should be turned off and back on again to disable the remote configuration option.
  • Page 56 Section 5 APPLICATIONS HIS PAGE INTENTIONALLY LEFT BLANK Copyright (C) Dataplex Pty Ltd...

  • Page 57: Data Transfer

    Selective Block Retransmission sends only the block in error and the receiving device resequences the data stream before releasing it to the terminal. The DPX-213 features extended MNP allowing selective retransmission when connected to another DPX-213 modem for higher throughput.

  • Page 58: Figure 6.1 Flow Control Buffers

    Band) flow control. Flow control is needed whenever the terminal and line speeds are different, or whenever MNP/V42 is active. When file transfer is taking place, data flows into the DPX-213 and is sent to line in packets. When a line error occurs, the block is retransmitted. This takes a small amount of time and during this time, more data is received from the terminal and must be buffered in the modem RAM.
  • Page 59 3 and finally flows to buffer 6. The DTE has RTS low quite often and eventually buffer 6 fills. Dropping RTS at the remote end suspends output from buffer 8 causing buffers 5 and 2 to eventually overrun and lose data. Copyright (C) Dataplex Pty Ltd...

  • Page 60: Microcom Networking Protocol

    CONNECT message, it may be attempting to negotiate an error corrected link with the remote modem. If no MNP support is found, the DPX-213 either hangs up or enters the transparent data mode where data is transparently passed with no error correction or compression enabled.

  • Page 61: Error Free Or Not At All

    MNP negotiation sequence. If AT&E1 and AT&I1 are set, the DPX-213 will negotiate with the remote modem for the highest level of MNP that both support and if no MNP support is found, the modem will enter the Transparent Data Mode and remain on-line.

  • Page 62: Software Compatibility

    MNP flow control. ZMODEM with either RTS/CTS or Xon/Xoff flow control allows *.EXE, *.BIN, *.COM and all other files to be sent over the DPX-213 while retaining the benefits of error correction. ZMODEM is error protected so there is a small additional overhead, but it is a very efficient protocol compared to XMODEM.

  • Page 63: Testing And Diagnostics

    Dataplex authorised service center, after first obtaining a Return to Manufacturer Authorisation (RMA) number. The DPX-213 has facilities for enabling remote and local loops for modem and line testing. NOTE: If bit error rate tests are performed with MNP enabled, line errors will be corrected but a false bit error rate reading will be given.

  • Page 64: Figure

    Analog Loopback is controlled with the AT&T1 command. If the DPX-213 is configured for switched network operation, the modem must be off-line for this test to work properly. If you are on-line the modem will not go into loop but will issue "CONNECT 2400"...

  • Page 65: Remote Digital Loopback

    TESTING and DIAGNOSTICS 7.4 Remote Digital Loopback (RDLB) This test will verify the receive and transmit sections of both DPX-213 modems and the phone line in both switched network and leased line operation. The Remote Digital Loopback test is initiated by typing the escape sequence followed by at&t6K...
  • Page 66 Section 7 TESTING and DIAGNOSTICS PAGE INTENTIONALLY LEFT BLANK Copyright (C) Dataplex Pty Ltd...

  • Page 67: Table 8.1 Table For Converting 8 Bit Binary To Decimal

    AT&F command. The DPX-213 uses 24 "S" registers. This Section contains information on the bit mapped registers used in the DPX-213. These registers are set and reset by the various AT commands.
  • Page 68 TOTAL New Setting Decimal equivalent if bit set to 1 (0 otherwise) 3. Finally, to assign the new decimal value to the register contents you would type ats30=187K . The changes are now in affect. Copyright (C) Dataplex Pty Ltd...
  • Page 69 : 0 to 255 (Stored in NVRAM) Establishes the number of rings that the modem must receive before the auto answer sequence is started. Values of 0 ensure the DPX-213 never answers (the value for Originate Mode) while values from 1-255 will enable auto answer.
  • Page 70 : 0 to 255 Seconds (Stored in NVRAM) S7 contains the time (in seconds) that the DPX-213 will wait for carrier after dialling is completed. In the answer mode S7 is the time that the modem waits for carrier after sending answer tone.
  • Page 71 S10 establishes the delay between loss of carrier to the time that the DPX-213 disconnects. By increasing this time, the modem will become less susceptible to line dropouts. By setting register S10 to 255 the DPX-213 will ignore the carrier status and function as if carrier were always present.
  • Page 72 V.22bis 2400 bps. ATB0 Disable Bell Mode. ATB1 Enable Bell Mode. Not Applicable Even parity. Space parity. Odd parity. Mark parity. AT&G0 No Guard tone. AT&G1 Guard tone enabled. AT*G0 No calling tone. AT*G1 Calling tone enabled. Copyright (C) Dataplex Pty Ltd...
  • Page 73 Pass through ON, modem flow ON. AT*Y0 Expedited/non destructive. AT*Y1 Expedited/destructive. AT&M0 Async mode normal. AT&M1 Async dial stored number. AT&M2 Async dial sync connect. AT&M3 Async dial slave sync connect. AT&T5 Disable remote loops. AT&T4 Enable remote loops. Copyright (C) Dataplex Pty Ltd...
  • Page 74 If the inactivity timer is employed, the modem will attempt to go into the low power/standby mode (provided the modem is left off-line in the command state for greater than the inactivity period). The actual time in seconds is ((256 x S-Register S37) + S- Register S36). Copyright (C) Dataplex Pty Ltd...
  • Page 75 This delay is the period that the modem will attempt to provide an MNP connection before dropping through to Constant Speed Interface or Disconnecting. When set to 0 then modem will use a standard 8 second period. Copyright (C) Dataplex Pty Ltd...
  • Page 76 Section 8 S REGISTERS HIS PAGE INTENTIONALLY LEFT BLANK Copyright (C) Dataplex Pty Ltd 8-10...

  • Page 77: Technical Specifications

    TECHNICAL SPECIFICATIONS 9.0 TECHNICAL SPECIFICATIONS The DPX-213 is a multi standard modem, with high reliability and low power consumption. The modem features an extended AT command set, error correction, data compression, pulse and tone dialling, automatic adaptive equalisation, synchronous and asynchronous capability, leased line and dial network support and numerous other features.
  • Page 78 7-20VDC Standard DC Operation DPX-213-03 20-70VDC Standard DC Operation Standard Accessories Supplied Four wire VF line cord RJ-11 to Telecom 605 plug Optional or Replacement Items 023-0008-1 RS232C Data Cable 023-0091-2 Adapter, RJ-11 to Telecom 610 Copyright (C) Dataplex Pty Ltd...

  • Page 79: Warranty And Repairs

    WARRANTY and REPAIRS 10.0 WARRANTY AND REPAIRS Dataplex warrants the DPX-213 to be free from defective materials or workmanship for a period of 3 months from the date of purchase. This warranty is extended to 12 months from date of purchase for users who return the warranty registration card within 30 days from the date of purchase.
  • Page 80 Section 10 WARRANTY and REPAIRS INSTALLATION and SERVICE RECORD Equipment : Dataplex DPX-213 Modem Serial No. : _____________________ Revision. : _____________________ Purchase Date : _____________________ Contract No. : _____________________ Renewal Date(s) : _____________________ Service Contact : _____________________ Phone : (02) 9869 2500...

  • Page 81: Problem Report Sheet

    (USE AT*C and print screen dump TO FIND OUT): _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ USER IDENTIFICATION:______________________ NAME: ___________________________________________________________ DEPARTMENT/TITLE: ______________________________________________ COMPANY: _______________________________________________________ ADDRESS: ________________________________________________________ __________________________________________ P/CODE: _______________ TELEPHONE (_____) ______________________ DATE: __________________ THANK YOU FOR YOUR HELP PRODUCT MANAGER DPX-213 DATAPLEX Pty Ltd Copyright (C) Dataplex Pty Ltd...

  • Page 83: S Register Summary

    ® Xon character. ® S36,37 Inactivity duration. ® Redial attempts. ® ® Delay before redialling. Delay before alarm message. ® ® MNP autoreliable delay. ® NOTE: indicates the S-register contents are stored in non-volatile memory. Copyright (C) Dataplex Pty Ltd...
  • Page 84 Appendix B S REGISTER SUMMARY HIS PAGE INTENTIONALLY LEFT BLANK Copyright (C) Dataplex Pty Ltd...

  • Page 85: Ascii Conversion Table

    01011101 109 01101101 125 01111101 CR ^M GS ^] 00001110 00011110 00101110 00111110 01001110 01011110 110 01101110 126 01111110 SO ^N RS ^^ > 00001111 00011111 00101111 00111111 01001111 01011111 111 01101111 127 01111111 SI ^O US ^- Copyright (C) Dataplex Pty Ltd...
  • Page 86 141 10001101 157 10011101 173 10101101 189 10111101 205 11001101 221 11011101 237 11101101 253 11111101 142 10001110 158 10011110 174 10101110 190 10111110 206 11001110 222 11011110 238 11101110 254 11111110 143 10001111 159 10011111 175 10101111 191 10111111 207 11001111 223 11011111 239 11101111 255 11111111 Copyright (C) Dataplex Pty Ltd...

  • Page 87: Interface Connections

    Appendix D INTERFACE CONNECTIONS The following Section applies to the DPX-213 only. There are two cables required for use with the DPX-213, one cable for the phone line and another cable that is connected between the modem and the terminal. The wiring for these cables is described in this Section.

  • Page 88: V.24 Interface Connectors

    The DPX-213 uses the industry standard V.24 (RS-232) 25 Pin interface configured for a modem (DCE - female). It is unlikely that the DPX-213 and your computer will need all the pins shown, some are used only in synchronous operation, while other pins are needed only by certain software packages.

  • Page 89: At Command Set Summary

    DTE flow control 4-18 AT&L Leased line control 4-19 AT&M Sync/Async, dialed stored number 4-20 AT&N Display or clear dialling directory 4-20 AT&P Pulse dial make/break ratio 4-20 AT&T Test modes 4-21 AT&U Modem flow control 4-21 Copyright (C) Dataplex Pty Ltd...
  • Page 90 Data compression. 4-24 AT*G Interrupted calling tone. 4-24 AT*P Password security 4-25 AT*R Remote configuration 4-25 AT*Y Break handling 4-25 Dial Modifiers (See ATD command) Dial stored number Pulse dial Tone dial Pause (S8 seconds) Copyright (C) Dataplex Pty Ltd...
  • Page 91 INDEX Constant speed interface 3-2,4-7,4-10,4-17,6-5,8- Accessories Answering a call 2-6,4-7 number of rings Data compression 4-16 to 4-18,6-4,8-7 Alarm/alert mode 4-23,5-6,8-6 Data bits (setting) 2-5,3-1,5-5 delay Data format (setting) 2-4,4-10 Applications Data transfer rate (speed) 2-4,4-10,6-1,8-6,8-7 ASCII conversion table C-1 to C-2 Data transfer state Asynchronous communication mode 4-20,5-2 to 5-3,6-1...
  • Page 92 Safety Line feed character Security See Password protection Lines dial-up Sending data See Applications Servicing (DPX-213) See Warranty and repairs leased lines 3-2,4-19,5-4 Loading default configuration See Configuration Software compatibility Specifications (technical) 9-1 to 9-2 Local analogue loopback test...
  • Page 93 D a t a p l e x P t y. L t d. Incorporated in NSW A.C.N. 003 053 343 Level 2, 71 Epping Rd, NORTH RYDE NSW 2113 AUSTRALIA DPX: (612) 02 9869 2500 FAX: (612) 02 9869 2600 www.dataplex.com.au info@dataplex.com.au...

Table of Contents