DPX-213 LOW POWER DATA MODEM USER MANUAL 2400/1200/300bps MNP-5 Data Leased Line & Dial Network Modem
WARNING When operating the DPX213 from a DC supply ensure that any devices that are connected to the DPX213 have a common NEGATIVE ground or are powered from an isolated source. It is recommended that the supply be connected via a disconnection device or an over-current protection device. SAFETY The 48V free standing unit is fitted with a 2m power supply cable with bare wire ends. This power supply cable must be connected to the power source via a disconnection device or an over-current protection device.
CONTENTS 1.0 2.0 3.0 4.0 INTRODUCTION 1-1 1.1 1.2 1.3 1.4 1-1 1-1 1-2 1-3 Features of the DPX-213 Requirements About the Manual The DPX-213 Modem INSTALLATION 2-1 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 2.8 Closing a Connection 2.9 Call Establishment Sequence 2.
CONTENTS 5.0 6.0 7.0 APPLICATIONS 5-1 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 5-1 5-1 5-2 5-3 5-4 5-5 5-5 5-6 5-6 5-6 5-7 DATA TRANSFER 6-1 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.
CONTENTS APPENDICES Appendix A Appendix B Appendix C Appendix D Appendix E Problem Report Sheet S Register Summary ASCII Conversion Table Interface Connections AT Command Set Summary FIGURES Figure 2.1 Figure 2.2 Figure 2.3 Figure 5.1 Figure 6.1 Figure 7.1 Figure 7.2 Figure D.
THIS PAGE INTENTIONALLY LEFT BLANK. VI Document No 113-213-01 Rev 1.
Section 1 INTRODUCTION 1.0 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. Congratulations on your purchase of the DPX-213. 1.1 Features of the DPX-213 This low power dial network and leased line data modem is designed for advanced business and professional applications.
INTRODUCTION 1.3 Section 1 About the Manual The manual is organised to explain increasingly more advanced operations. Novice users should read all sections, in particular, 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 1 1.4 INTRODUCTION The DPX-213 Modem The DPX-213 is designed and built in Australia and offers: • • • • • • • • • • • • • Low Power: Standby current < 100uA. Operating current < 100mA Wake up on DTE RxD, Ring or Raise of DTR. Led operation link selectable. DTR wake-up link selectable. Alarm/Dialback function. Password security/dialback. Remote configuration. Async/Sync link selectable. Power from DB25, IDC or Power Connector. Small size. MNP error correction & data compression.
Section 1 INTRODUCTION THIS PAGE INTENTIONALLY LEFT BLANK.
Section 2 INSTALLATION 2.0 INSTALLATION Read this Section in order to correctly install your modem. It includes information on connector pinouts, front and rear panel details and a simple test of your setup. Before operation is possible, the modem must be setup, either to the factory defaults or with special S-register values to suit your own configuration. Most communications software packages issue a default command string to set up the modem.
Section 2 INSTALLATION U1 RESET Figure 2.2 2.2 DPX-213 Jumper Locations J4: Removing this jumper reduces current consumption by disabling the front panel LEDs. J5: 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. J8: This jumper enables the sync clocks on the V24 interface.
Section 2 2.3 INSTALLATION Connecting a Terminal or Computer to the DPX-213 The DPX-213 uses the industry standard 25 Pin "D" connector as its data interface, with the signals defined in the CCITT V.24, V.28 and EIA RS-232C for modems. The DPX213 operates as Data Circuit-terminating Equipment (DCE).
Section 2 INSTALLATION Table 2.1 2.5 Front Panel Indicator Names and Functions. Name Function Colour Status TD RD CD Transmit Data Receive Data Carrier Detect Yellow Yellow Green OH Off Hook Red Off for mark, On for space, flickering for data Off for mark, On for space, flickering for data On when CD active, Off when CD inactive. (See AT&C command) On when modem is on line (Off hook). Off when modem is off line (On-hook). When the modem is in Loop modes this LED flashes.
Section 2 2.7 INSTALLATION Table 2.2 Valid Character Formats Start Bit Data Bits Parity Stop Bits Total Bits 1 1 1 1 1 7 7 7 7 8 Mark Even Odd Space None 1 1 1 1 1 10 10 10 10 10 Making a Connection Make sure the cable and terminal software are correct, then type atK. This allows the modem to sense the terminal speed and calculate the parity being used.
Section 2 INSTALLATION 2.8 Closing a Connection There are several ways to abort a call. If the call has been answered by a modem and both are on-line, typing any key will now send that character to the attached modem. Aborting the call in this case must be done from the on-line interactive state which is entered by typing the escape sequence of 'pause' +++ 'pause' followed by athK.
Section 2 INSTALLATION The called modem will turn on the ring indicator with each incoming ring (Pin 22). It will usually output the word "RING" to the terminal with each incoming ring unless this feature has been disabled with the ATQ or ATV commands. The DPX-213 can be configured so it will: • • • Answer at a particular ring count (typically, the answering modem will be set to answer on the first or second ring; Never answer; Answer if the data terminal ready lead (Pin 20) is asserted. 2.
Section 2 INSTALLATION THIS PAGE INTENTIONALLY LEFT BLANK.
Section 3 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). These setups or configurations are stored in 'S-registers'. 3.
BEFORE YOU START 3.4 Section 3 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. Contact Telecom if you are trying to use the modem on a small business key system such as a Commander, as these hand sets often signal to the PABX electronics with non standard tones and voltages.
Section 3 3.7 BEFORE YOU START 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.
Section 3 BEFORE YOU START THIS PAGE INTENTIONALLY LEFT BLANK.
Section 4 AT COMMAND SET 4.0 AT COMMAND SET This Section contains some useful information about entering commands into the DPX213, the 'AT' command syntax and the different operating states. The Section also contains a complete alphabetical listing of all commands. 4.1 Command Line and Command Entry The DPX-213 uses the common AT command set which Dataplex has extended to cover additional features. The attention code, the letters 'AT', must precede all command lines to the DPX-213.
Section 4 AT COMMAND SET 3. 4. Entering ats7=60K will cause the modem to wait 60 seconds for carrier from the answering modem. Entering atdn5K will cause the modem to dial the number stored in location 5. Or type one concatenated string: atx3 s0=4 s7=60 dn5 K which has the same effect (spaces between commands are ignored and are optional). The above command descriptions have numeric modifiers to allow selection from one of several command options. These are usually shown as parameters 0 to 9.
Section 4 AT COMMAND SET Repeat Command When the DPX-213 is in Local Command State (waiting for an attention code), entering the characters a/ will cause the DPX-213 to repeat the last command line. The 'A' character can be in either upper or lower case. If an a/ is entered directly after turning on the power, the modem will return an ERROR code. Command Parameters Most commands to the DPX-213 have several parameters. These parameters select the various options for each command.
AT COMMAND SET 1. Section 4 Idle State This state is entered shortly after power is applied to the modem and the power-up self test has been passed. It can also be entered after the modem has executed a nondialling command line. In this state, the modem is waiting to autobaud an AT sequence from the DTE or awaiting a ringing signal from the telephone line. If a valid 'AT' entry is detected, the modem enters the Command State.
Section 4 3. AT COMMAND SET Data State After an ATA (Answer) or ATO (Originate) command, the modem enters the Data State. The modem will attempt to handshake with the remote modem or if already connected will enter begin to exchange data. The normal Data State is transparent and all characters issued by the DTE are passed to the remote end. Sometimes you may need to abort the operation and regain control of the local modem instead of the remote DTE.
AT COMMAND SET 4. Section 4 On-line Command State This state is entered after a 'pause' +++ 'pause' escape sequence has been detected. 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. Additionally, some RTS, DTR, or make busy control changes are acted upon.
Section 4 AT COMMAND SET A/ Repeat Last Command Parameters : None Default : None A/ is the only command that must not be preceded by an "AT" or terminated with a carriage return ( K ). This command will repeat the preceding command string. This is useful for redialling a previously engaged phone number. ATA ANSWER Parameters : None Default : None Causes the modem to answer an incoming call (go off-hook), try to train on the incoming signal and then go on-line. There will be a 2.
Section 4 AT COMMAND SET ATD DIAL Parameters : Dial String Default : None Causes the modem to go off hook and originate a telephone call. After dialling, the modem will wait for an answer tone from the remote modem, try to train on the incoming signal, and go online. If the modem fails to detect an answer tone after the time in register S7 (45 seconds), the modem will return to the Local Command State and send the "NO ANSWER" message. The modem will dial all 10 pulse digits or 12 standard tone pairs.
Section 4 AT COMMAND SET P - Set Pulse Dialling Normally the DPX-213 will automatically sense whether to use tone or pulse dialling. Using this modifier causes any further digits in the dial string and if ATX3 is set, dial commands, to be dialled with decadic pulses. Thus, pulse and tone dialling may be mixed in the same telephone number. The default setting is for check for tone dialling.
Section 4 AT COMMAND SET ATF FORCE Line Speed Parameters : 0 to 6 Default : 0 (Auto Speed) This command lets you select the transmission speed and modulation format independent of the DTE interface speed. Use this command in conjunction with the ATB command. This allows you to go on-line at 300, 1200 or 2400 bps but keep your terminal speed fixed at some other speed. ATF0 - Modem autoranges for both originate and answer. The Constant Speed Interface operates from 300 to 9,600 bps.
Section 4 AT COMMAND SET ATNn&Z Store String in NVRAM Parameters : 0 to 9 Default : None This command allows up to 44 characters to be stored in each of the ten NVRAM locations for later recall. NOTE: Location zero and location one are the ONLY locations that can be dialled on the rise of DTR.
Section 4 AT COMMAND SET ATP Set PULSE Dialling Parameters : None 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.
Section 4 ATSr=n AT COMMAND SET Set STATUS Register Contents Parameters : r = 0 to 53, n = 0 to 255. Default : r = 0, n = 0 The ATSr=n command allows the user to change the modem configuration parameters by altering the values stored in the S registers. You must first convert a binary bit mapped register into decimal before attempting to set it. Use the S register descriptions and Appendix B to get the correct bit number.
Section 4 AT COMMAND SET ATX Call Progress Control Parameters : 0 to 3 Default :3 The ATX command controls the level of call progress detection when originating or answering a telephone call. The table on the following page shows the result codes returned. ATX0 - Enables response codes 0-4, 8, 12-14 modem will blind dial. ATX1 - Enables response codes 0-4, 6-8, 12-14 modem needs dial tone. ATX2 - Enables response codes 0-5, 8-10, 12-21 modem needs dial tone.
Section 4 ATZ AT COMMAND SET Modem Reset Parameters : 0,1 Default : None Entering ATZ0 resets the modem and copies the user stored NVRAM configuration to the active RAM. It restores all user controlled settings to previously stored values. If the NVRAM contains an invalid configuration, typing ATZ will merely copy the bad data from NVRAM to active RAM. You must use AT&F (load factory configuration from ROM to RAM) followed by AT&W (write RAM configuration to NVRAM) to recover from this.
Section 4 AT COMMAND SET AT&E ERROR Correction Parameters : 0 or 1 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 modes. AT&E0 - Error control/data compression disabled.
Section 4 AT&H AT COMMAND SET HELP Parameters : 0 to 4 Default : None This command displays several levels of help screens to reduce the need for a handbook to enter field changes. AT&H0 - General help Summary. AT&H1 - Extended help Summary. AT&H2 - Help on Dial Modifiers. AT&H3 - Help on Test Commands. AT&H4 - Help on S-Registers.
Section 4 AT COMMAND SET AT&K DTE Flow Control Parameters : 0 to 3 Default : 1 (Select Xon/Xoff Flow Control) This command selects the method of handshaking between the DTE and the modem during error correction, data compression or whenever the Constant Speed Interface is set at a different rate to the line speed. NOTE: Xon/Xoff flow control should NOT be used when passing binary, command or executable files since they may contain Xoff characters without matching Xon characters.
Section 4 AT COMMAND SET AT&L LEASED Line Select Parameters : 0 or 1 Default : 0 (Dial Network) The CCITT V.22bis recommendation is primarily concerned with dial network operation. 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.
Section 4 AT COMMAND SET AT&M Synchronous/Asynchronous MODE Selection Parameters : 0 to 3 Default : 0 (Async) The AT&M command selects asynchronous or synchronous terminal modes of operation. This command also provides for the manual and automatic dialling of a stored number under DTR control. See the AT&D command for actions taken on the fall of DTR. AT&M0 - Asynchronous Mode 0. Type ATDnnn to dial. AT&M1 - Synchronous Mode 1. DTR dial asynchronous.
Section 4 AT&T AT COMMAND SET TEST Modes Parameters : 0 to 6 Default : 0 (No Tests in Progress) This command enables and disables several local and remote loopback tests, and tests with the internal test pattern generator. AT&T0 - Terminate test in progress. AT&T1 - Initiate Local Analog Loopback. AT&T4 - Enable Remote Digital Loopback response. AT&T5 - Disable Remote Digital Loopback response.
Section 4 AT COMMAND SET Pass through means that, if Xon/Xoff flow control is enabled, the controlling character detected will be acted upon by any buffer it encounters, and then passed through to the next buffer in the link. Disabling pass through means that any Xoff character received by a buffer will be obeyed but the Xoff character will then be discarded. If line flow control is enabled, the receiving modem line buffers will be susceptible to flow control characters in the received data stream.
Section 4 AT COMMAND SET AT*A Alarm/Alert Mode 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.
Section 4 AT COMMAND SET AT*D DUMB Mode Parameters : 0 to 3 Default : 0 (Disabled) To prevent modem "lock up", it is advised that the escape sequence 'pause' +++ 'pause' be disabled when using the Dumb Mode (see Register S2 description for more details). AT*D0 - Allows the DPX-213 to respond to normal AT command and attention sequences. AT*D1 - Disables AT command acceptance and echo. Once the modem is configured, AT commands can no longer gain control of the DPX-213.
Section 4 AT*P AT COMMAND SET Password Security Parameters : 0 to 2 Default : 0 (Password Disabled) The AT*Pn command enables several levels of password and dial back security in the DPX-213. Refer to Section 5, Applications, for more information. AT*P0 - Disable password checking. AT*P1 - Enable password checking. Password prompt can be programmed by placing the required string in location 9. If no password prompt is specified, the DPX-213 issues a "PASSWORD ? :" prompt for incoming caller.
Section 4 AT COMMAND SET THIS PAGE INTENTIONALLY LEFT BLANK.
Section 5 APPLICATIONS 5.0 APPLICATIONS This Section describes some essential information about configuring the DPX-213 to operate under various applications. 5.1 Resetting the Modem Remove the lid from the box and short reset pads while switching the power on. This executes a MASTER RESET which totally clears all stored numbers, stored commands, passwords and 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.
Section 5 APPLICATIONS 5.3 Asynchronous Modes Mode 0 Asynchronous This is the standard default Asynchronous Operating Mode. Enter ATDnnnnnn to dial and go on-line. DTR modes refer only to actions performed on the falling edge. Dialling is performed exclusively by AT dial commands. If AT&D0 is set, answering a call takes place as soon as the ring count in S0 is reached. If DTR is left high, the modem will answer on the number of rings stored in S0, or, as determined by the AT&D1-3 modes.
Section 5 5.4 APPLICATIONS Synchronous Modes Mode 2 Synchronous This is useful for setting up a synchronous auto-answer system or setting up a synchronous link with an asynchronous terminal and then switching over to a synchronous DTE with an A/B switch once the call is established. With AT&M2 set, the DPX-213 allows asynchronous dialling (for example ATDP1234567). After call establishment (the modem issues the "CONNECT" message), the modem enters Synchronous Mode and turns on the clocks.
Section 5 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. The AT&L1 mode provides a controlled carrier mode based on the RTS interface lead (AT&K1) which can be made permanent carrier with the AT&D0 command. V.
Section 5 5.6 APPLICATIONS Extended Character Formats Both MNP and AT protocols specify ten bit characters made up of one start bit, eight data bits and one stop bit. The data bits may be seven data bits and one parity bit or eight data bits with no parity bit. 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.
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: • Using the ATZ1 command, or, • Placing a value other than 0 in the inactivity timer registers S36/37, and allowing the unit to sit in offline Idle Mode until the inactivity timeout is reached. To enter standby mode in both instances, the DTR must be disabled or held inactive.
Section 5 APPLICATIONS 5.11 Remote Configuration In remote configuration mode, any valid AT command which does not drop the line can be issued (but without the AT prefix) to reconfigure a remote modem. Typically the command is left disabled and is temporarily enabled at the remote site by entering the escape sequence ('pause' +++ 'pause') then AT*R1 if on-line, or simply AT*R1 if off-line. Holding down the LOOP button at the instant power is applied will also temporarily enable remote configuration.
Section 5 APPLICATIONS THIS PAGE INTENTIONALLY LEFT BLANK.
Section 6 DATA TRANSFER 6.0 DATA TRANSFER 6.1 Error Control In synchronous applications, typically with mainframe computers, communications software running in the front end processor and terminal is responsible for error control. In asynchronous communications with mini, micro, and personal computers, there is usually no link level error control and users occasionally experience corrupted data in keyboard interactive sessions.
Section 8 DATA TRANSFER 6.2 Flow Control Flow Control refers to the method used to stop data flow whenever the terminal or the modem needs time to retransmit blocks in error or prevent a buffer overflow. The DPX213 supports both RTS/CTS (Hardware or Out-of-Band) and Xon/Xoff (Software or InBand) flow control. Flow control is needed whenever the terminal and line speeds are different, or whenever MNP/V42 is active.
Section 6 DATA TRANSFER There may be instances when the Constant Speed Interface is used without MNP/V42 and where the DTE issues Xoff (or drops RTS) to the modem. In this case, data may be lost unless AT&U is enabled. For example, assume that the modems have Constant Speed Interface enabled (AT&I1) and MNP/V42 disabled (AT&E0), the local terminal is set for 9600 bps with Xon/Xoff flow control and the remote terminal is set for 1200 bps with RTS/CTS flow control. In this case, AT&U2 or AT&U3 must be used.
DATA TRANSFER 6.4 Section 8 Microcom Networking Protocol MNP (Microcom Networking Protocol) is a suite of sophisticated sliding window block retransmission error control and data compression protocols. The DPX-213 has MNP to level 5 with enhanced throughput from selective block retransmission in the event of an error. This protocol offers excellent error control and achieves data throughput up to 4800 bps on good lines and 2400 bps with zero errors on noisy lines.
Section 6 6.5 DATA TRANSFER Error Free or Not at All In some applications you may need to be sure you connect with error control invoked. It may be desirable not to connect at all if you cannot establish a reliable link. Setting AT&E1 and AT&I0 achieves this. If the remote modem cannot support MNP, the DPX-213 will terminate the call immediately after the MNP negotiation sequence.
DATA TRANSFER Section 8 The ZMODEM or Ymodem-G protocol is ideal for all types of file transfer over an error protected channel. ZMODEM is a "sliding window" protocol that allows for long path delays such as through multiplexer channels, packet switched networks or ARQ modems. ZMODEM searches for control characters such as Xon and Xoff which may be embedded in the file. Such characters are converted to an escape sequence which will not confuse the MNP flow control.
Section 7 TESTING and DIAGNOSTICS 7.0 TESTING AND DIAGNOSTICS Dataplex have designed the DPX-213 to provide years of trouble free service. However, abuse, component failure or external high voltages will damage the unit. All Dataplex products are subjected to 72 hour burn-in and extensive testing before leaving the factory to ensure professional quality and reliability. The DPX-213 uses professional grade components and includes the minimum number of mechanical components which can degrade with age.
Section 7 TESTING and DIAGNOSTICS 7.2 Local Analog Loopback (ALB) Local Analog Loopback will test the analog and digital performance of the DPX-213 modem up to the line interface hybrid. 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" and revert to the On-line Data Mode (equivalent to typing ATO).
Section 7 7.4 TESTING and DIAGNOSTICS 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 the command at&t6K.
Section 7 TESTING and DIAGNOSTICS PAGE INTENTIONALLY LEFT BLANK.
Section 8 S REGISTERS 8.0 S REGISTERS The "S" registers, or status registers store the modem configuration parameters. The S registers (particularly the bit mapped registers) are usually only altered using the AT commands, but in exceptional circumstances may require alteration via the ATSr=n command. S registers should be altered with care, as it is possible to configure the modem with conflicting parameters producing unpredictable results.
Section 8 S REGISTERS 5. Wherever a '1' appears in the 'New Setting' row, perform the conversion by underlining the decimal equivalent for that particular bit value and then ADDING together the underlined decimal numbers. Place this result in the TOTAL cell. 6. You can now change the contents of the S-register by assigning the derived TOTAL decimal value to the S-register.
Section 8 S0 Default Range S REGISTERS Rings to Answer : 2 (Answer on second ring) : 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. NOTE: When in leased line Mode, S0=0 forces the DPX-213 into Originate Mode and S0=(1-255 but not zero) forces the DPX-213 into Answer Mode.
Section 8 S REGISTERS S5 Default Range Back Space Character : 8 Decimal (###h; {08 HEX}) : 0-255 S5 contains the ASCII value of the Back Space character. When a character matching the Back Space character is received any time during a command entry, the modem performs the following : 1. The Back Space Character is echoed. 2. A Forward Space {20 HEX} is output to the DTE. 3. Another Back Space Character is output to the DTE.
Section 8 S REGISTERS S10 Default Range Carrier Loss Response Time : 40 Decimal (0.04 Seconds) : 0 to 255 (in 0.02 Second increments, Stored in NVRAM) 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.
Section 8 S REGISTERS S21 Default Range DTR Control, Dumb Mode, Alarm Mode, Password :0 : 0 to 255 (Stored in NVRAM) This register is read only and writing to this register may cause unpredictable results. BIT VALUE(S) 0 0 1 0 0 1 1 0 0 1 1 0 0 1 0 1 21 4 3 6 5 7 S23 Default Range: 0 1 0 1 0 1 0 1 0 1 0 AT COMMAND AT&C0 AT&C1 AT*D0 AT*D1 AT*D2 AT*D3 AT*A0 AT*A1 AT*A2 AT*A3 AT*P0 AT*P1 AT*P2 AT*R0 AT*R1 DESCRIPTION CD always asserted. CD follows line carrier. Disable dumb mode.
Section 8 S30 Default Range S REGISTERS MNP, CSI, Result Codes, Pulse Ratio, Character Size : BC Hex : 0 to 255 (Stored in NVRAM) BIT VALUE(S) 0 0 1 0 1 0 1 0 0 1 1 0 1 0 0 1 1 1 2 4 3 5 7 6 S31 Default Range 0 1 0 1 0 1 0 1 1 0 0 0 1 1 0 0 1 1 0 1 0 0 1 1 0 1 6 5 7 MNP 2-4 error control disabled. MNP 2-4 error control enabled. MNP 2-5 compression disabled. MNP 2-5 compression enabled. Disable Constant Speed Interface. Enable Constant Speed Interface. Result code settings. U.S.A.
Section 8 S REGISTERS S32 Default Range Modem Flow Control Xoff Character : 19 decimal (###s13 HEX) : 0 to 255 (Stored in NVRAM) Stores the ASCII 8-bit value of the modem (AT&K) flow control X-off character. S33 Default Range Modem Flow Control Xon Character : 17 decimal (###q- 11 HEX) : 0 to 255 (Stored in NVRAM) Stores the ASCII 8-bit value of the modem (AT&K) flow control X-on character.
Section 8 S50 Default Range S REGISTERS Redial Attempts : 5 Decimal : 0 to 256 Seconds (Stored in NVRAM) If a call is made in AT*A mode and the message is not successfully sent, the unit will attempt to redial the number of times stored in this register before giving up. This takes into account alternate number dialling. In this scenario, the modem attempts to connect using the number stored in location 0 and then the number stored in location 1 on failure to send an alarm message.
Section 8 S REGISTERS THIS PAGE INTENTIONALLY LEFT BLANK.
Section 9 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. Equalisation 2400 bps QAM - CCITT V.22bis. 1200 bps DPSK - CCITT V.22, and Bell 212A. 300 bps FSK - CCITT V.
Section 9 TECHNICAL SPECIFICATIONS Environmental Physical Temperature 0 to 85 degrees C. Relative humidity < 95%, non-condensing. Height - 20 mm. Width - 127.8 mm. Depth - 130 mm. Weight - 0.6 kg.
Section 10 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. This warranty does cover equipment damaged by accident, abuse, unauthorised modifications, or improper use.
Section 10 WARRANTY and REPAIRS INSTALLATION and SERVICE RECORD Equipment : Dataplex DPX-213 Modem Serial No. : _____________________ Revision. : _____________________ Purchase Date : _____________________ Contract No.
Appendix A PROBLEM REPORT SHEET PROBLEM REPORT SHEET Use this form to list any problems which you find in the modem, then mail or fax it to Dataplex Fax No. (02) 9869 2500. SOFTWARE REVISION NO.: __________________ (USE ATI3 TO FIND OUT) MODEL NO.: DPX-213 DATE OF PURCHASE: ____________ SERIAL NO.
Appendix B S REGISTER SUMMARY S REGISTER SUMMARY Register Brief Description S0 S1 S2 S3 S4 S5 S6 S7 S8 S10 S12 S14 S21 ® S23 S30 S31 S32 S33 S36,37 S50 S51 S52 S53 ® ® ® ® ® ® ® ® ® ® ® ® ® ® ® ® ® ® ® ® ® Rings to answer. Ring count. Escape code character. Carriage return character. Line feed character. Back space character. Wait for dial tone. Wait for carrier after dial. Dial pause time for comma. Loss of carrier response time. Escape code guard time.
Appendix B S REGISTER SUMMARY THIS PAGE INTENTIONALLY LEFT BLANK.
Appendix C ASCII CONVERSION TABLE ASCII CONVERSION TABLE KEY: DEC BINARY HEX ASCII/CTRL Please Note: ASCII or character equivalents are given only for the first 127 entries (as ASCII is a 7 bit code). Also, control (Cntrl) sequences exist for the first 32 entries only.
Appendix C ASCII CONVERSION TABLE ASCII CONVERSION TABLE 128 10000000 144 10010000 160 10100000 176 10110000 192 11000000 208 11010000 224 11100000 240 11110000 80 90 A0 B0 C0 D0 E0 F0 129 10000001 145 10010001 161 10100001 177 10110001 193 11000001 209 11010001 225 11100001 241 11110001 81 91 A1 B1 C1 D1 E1 F1 130 10000010 146 10010010 162 10100010 178 10110010 194 11000010 210 11010010 226 11100010 242 11110010 82 92 A2 B2 C2 D2 E2 F2 131 10000011 147 10010011 163 10100011 179 1
Appendix D INTERFACE CONNECTIONS 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. Line and Phone Connector The phone and line connector are both RJ-11 type connectors. The Line Connector has mode 3 connections in addition to the standard tip and ring connections.
Appendix D INTERFACE CONNECTIONS V.24/28 Interface Wiring 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. The DPX-213 modem will operate with only three (3) active leads in the cable, transmit data, receive data and ground on Pins 2, 3, and 7. Table D.
Appendix E AT COMMAND SET SUMMARY AT COMMAND SET SUMMARY E-1 Command Brief Description Section A/ ATA ATB ATD ATDn ATE ATF ATH ATI ATNn&Z ATO ATP ATQ ATSr? ATS=n ATT ATV ATX ATZ AT&C AT&D AT&E AT&F AT&G AT&H AT&I AT&K AT&L AT&M AT&N AT&P AT&T AT&U Repeat command - NO AT prefix Answer Bell/CCITT select Dial command Dial stored number Echo command Communication format/force line speed Hook command - hang up Identify modem Store string in location n On line, originate and retrain Pulse dial modifier Re
Appendix E AT COMMAND SET SUMMARY AT COMMAND SET SUMMARY Command Brief Description Section AT&W AT&Z AT*A AT*C AT*D AT*E AT*G AT*P AT*R AT*Y Write active configuration to NVRAM Store phone number to NVRAM Alarm mode. Configuration screen Dumb mode Data compression. Interrupted calling tone.
INDEX Constant speed interface A Accessories Answering a call number of rings Alarm/alert mode delay Applications ASCII conversion table Asynchronous communication mode mode AT commands description ignore NO 'AT' response remote entry summary Attention code Autobaud Autoranging Automatic answer/originate calling line rate detection tone/pulse selection 9-2 2-6,4-7 8-3 4-23,5-6,8-6 8-9 5-1 C-1 to C-2 4-20,5-2 to 5-3,6-1 4-20,8-7 4-6 4-1 8-6 2-7 See Remote configuration E-1 to E-2 4-2 to 4-3 3-2 3-2,4-10 3-
INDEX RTS/CTS flow control J Jack type selection Jumper locations/setting See Connectors 2-2 L Leased line / dial up operation modes LED (front panel indicators) Line feed character Lines dial-up leased lines Loading default configuration Local analogue loopback test Low power mode 3-2,4-19,5-4 8-5 2-3,7-1,7-3 8-3 3-2 3-2,4-19,5-4 See Configuration 4-21,7-2 5-6 M Make / break ratio Manual calling / dialling Master reset MNP error control data compression delay (autoreliable) Modem basics resetting test
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.
