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Raymar Alliance V.34M Instruction Manual

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0049-2702-XXX
Rev. A
Alliance Series Modems
Instruction Manual
Alliance V.34M
Alliance V.34
Alliance V.32/19.2M
Alliance V.32/19.2
Alliance V.32/14.4M
Alliance V.32/14.4
Alliance V.32M
Alliance V.32
Alliance Series Modems – USER MANUAL
08/05/2010

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Summary of Contents for Raymar Alliance V.34M

  • Page 1 Alliance Series Modems Instruction Manual Alliance V.34M Alliance V.34 Alliance V.32/19.2M Alliance V.32/19.2 Alliance V.32/14.4M Alliance V.32/14.4 Alliance V.32M Alliance V.32 0049-2702-XXX Alliance Series Modems – USER MANUAL 08/05/2010 Rev. A...
  • Page 2 Raymar Information Technology, Inc. 7325 Roseville Road Sacramento, CA 95842 800-695-1951 Fax: 916-783-1952 0049-2702-XXX Alliance Series Modems – USER MANUAL 08/05/2010 Rev. A Page i...
  • Page 3 User’s Guide and all accompanying hardware and documentation are copyrighted. Raymar-Telenetics does not warrant that the hardware will work properly in all environments and applications, and makes no warranty and representation, either implied or expressed, with respect to the quality, performance, merchantability, or fitness for a particular purpose.

  • Page 4: Table Of Contents

    TABLE of CONTENTS 1. GETTING STARTED..........Page 1 2. OPTIONS: CUSTOMIZING THE MODEM SETUP............Page 21 3. GENERAL OPERATION & SPECIAL FEATURES..........Page 69 4. HAYES EMULATION MODE ......Page 108 5. V.25bis AUTODIALER........Page 135 6. DIAGNOSTICS ...........Page 141 7. APPENDIX A – TECHNICAL DATA ....Page 157 8.

  • Page 5: Getting Started

    ITU-T Recommendation V.34, while all other models comply with ITU-T V.32/V.32bis. “M,” as in “ALX V.34M,” indicates that the modem is network manageable (it can be managed using Raymar-Telenetics’ network management software). Other differences are explained later in this manual.
  • Page 6 INSTALLATION Unpacking Keep the original shipping carton in case it is necessary to return the modem for any reason. Failure to comply may result in voiding the warranty. In addition to the ALX modem, the shipping carton should contain: • A power transformer (with cable attached) •...
  • Page 7 For leased line applications: • Use the supplied four-conductor cable to connect the modem connector labeled “LEASED LINE” into the leased line modular wall jack (type USOC JM8). Do not bundle the leased line and TIA/EIA interface cables together. If your application requires an 8-pin connector, use the alternate leased line connector shown in Figure 1-1 instead of the 6-pin “LEASED LINE”...

  • Page 8: Front Panel Lcd And Controls

    Jumpers For most applications, do not change the internal jumper switches. However, jumper switches must be changed if you need to connect frame ground to signal ground, switch from A/A1 control to MI/MIC control, change the function of TIA/EIA pin 25 (test mode indicator, by default) or use the ALX in a DC rack enclosure.
  • Page 9 Arrow Pushbuttons The left arrow ( ) and right arrow ( ) pushbuttons are used to display additional or previous screens that are part of the same menu. See Figure 1-3. If a menu has more than one screen, each screen is numbered in the upper right corner, as follows: <2>.
  • Page 10 The top line identifies the modem type and model. The bottom line shows the revision level of the software used in the ALX modem. If you need to call Raymar-Telenetics’ Technical Support Group with a question or service problem, please be prepared to provide the software revision level of your unit.
  • Page 11 TIA/EIA Status Screen The TIA/EIA status screen, shown below, indicates the operational status of the ALX as well as the condition of certain TIA/EIA RS-232 leads. The abbreviations that may appear are identified below; however, typically, only a few of these abbreviations will be displayed during actual operation.

  • Page 12: Quick Setup

    QUICK SETUP To quickly set up the ALX modem for immediate use (or to quickly change the modem’s configuration for an alternate mode of operation), select one of the factory-preset Quick Setup configurations (Table 1-1). When a Quick Setup is selected, the ALX automatically sets all of its options to the settings that best suit the application type (Quick Setup) you have selected.
  • Page 13 4. When the LCD shows the Quick Setup configuration you want, press pushbutton 2. This will cause the bottom line of the display to flash on and off. 5. Press the ENT button twice. As you do this, you will see SETUP screen 1; then - after you press the ENT button a second time –...
  • Page 14 Table 1-1. ALX Quick Setup Configurations Quick Setup as Identified on LCD Description 2-WIRE DIAL HAYES EMULATION MODE – This Quick Setup (for communication over ordinary phone lines) allows the ALX modem to automatically dial (autodial) a previously stored phone number and respond to Hayes commands. This mode is compatible with communication software packages that use Hayes-style “AT”...
  • Page 15 4-WIRE LEASED LINE ORIGINATE MODE – Same as Quick Setup 6 except for line type. Use Quick Setup 8 if the leased line is a 4-wire line and you want to configure the ALX as the originate modem. 4-WIRE LEASED LINE ANSWER MODE – Same as Quick Setup 6 except for line type and answer/originate status.
  • Page 16 Table 1-2. Quick Setup Modes Supported by Specific ALX Models ALX Models V.32, V.32/14.4, V.32/14.4M, Quick Setup Mode V.32M V.32/19.2, V.32/19.2M, V.34, V.34M Hayes (01) V.25bis (02–04) Dumb (05) Leased (06-09) V.33 (10) Bell 208 (11-12) V.29 (13-15) Opt. V.27 (16) Opt.

  • Page 17: Basic Operation

    BASIC OPERATION To assist you in getting the ALX modem up and running, the following sections provide basic information for each of the modem’s primary operating modes. For additional operating information, refer to the remaining chapters in this manual. If you encounter difficulty, refer to the section titled If You Have Problems at the end of this chapter.

  • Page 18: Wire Dial Dumb Mode

    2-Wire Dial V.25bis Mode The ALX modem supports three types of V.25bis operation – asynchronous, synchronous character oriented or synchronous bit oriented. There is a Quick Setup for each V.25bis type, as shown in Table 1-1. For V.25bis operation, the modem must be configured to use the same data protocol (asynchronous, synchronous character oriented or synchronous bit oriented) –...
  • Page 19 For additional information on dumb mode, see Chapter 3 (Front Panel Autodialing and Dumb Mode and Bell 208 Operation sections). Leased Line (2- or 4-Wire) Mode This section does not apply to V.33 and V.29 leased line operation; these modes are covered in subsequent sections.
  • Page 20 After the V.33 Leased Line Quick Setup has been selected, the ALX immediately begins the training sequence and is ready to communicate with the other modem. The second modem to come online automatically establishes the data link; this may be either the local or remote unit. When the local modem has established a connection with the remote unit, the TIA/EIA status screen will be present.
  • Page 21 If the connection is a V.32bis connection, the ALX will default to V.13 mode (with the V.13 Operation option set to the TX AND RX selection). The ALX will not handshake in V.22bis, V.21/V.22/V.23 or Bell 212/103 mode when it is configured for V.3x/208 auto-detect mode. For additional information on Bell 208 operation, see Chapters 2 (Communication Standard section) and 3 (section titled Dumb Mode and Bell 208 Operation).
  • Page 22 V.34/V.32 Dial Backup Dial backup can only be used in point-to-point applications. To prevent service interruption in the event of poor leased line conditions, the ALX can be configured for V.29 leased line operation with V.34/V.32 dial backup. This means the ALX will use dial lines to automatically restore operation when conditions on the leased lines deteriorate.
  • Page 23 Figure 1-4. A typical multidrop configuration The V.29 Fast Master and Fast Slave modes support data rates of 4800, 7200 and 9600 bps. The leased lines can be conditioned or unconditioned. The master modem must be set to originate mode, and the slave modem must be set to answer mode. (The Answer/Originate option is automatically set to these settings when the V.29 Fast Master and Fast Slave Quick Setups are used.) Slave-to-Master (Inbound) Transmission...
  • Page 24 If you suspect a system malfunction, follow the diagnostic procedures described below. If you suspect a system malfunction, follow the diagnostic procedures described in Chapter 6. If you cannot resolve the problem, call Raymar-Telenetics’ Technical Support Group for assistance. All Modes: Make sure all cables are properly connected to the back of the modem.

  • Page 25: Options: Customizing The Modem Setup

    CHAPTER TWO – OPTIONS: CUSTOMIZING THE MODEM SETUP METHODS for SELECTING OPTIONS The ALX modem allows you to easily select (change) options in order to tailor the modem’s operation to suit a particular application. Options can be selected in any of the following ways: •...
  • Page 26 To select a setting from a DEC/INC screen, use pushbutton 1 or 3 to cycle through the option settings, when you see the standard you want, use pushbutton 2 to select the desired setting. When you select a setting from an option screen, your selection flashes on and off on the LCD. However, the selection does not take effect until you leave the SETUP menu.
  • Page 27 Now press the right arrow pushbutton three times; this will cause SETUP screen 4 to be displayed: Press pushbutton 3 to select MODEM (for MODEM SETUPS). The first MODEM SETUPS screen will be displayed: Press the right arrow pushbutton four times to reach MODEM SETUPS screen 5: Press pushbutton 3 to select SPKVOL (speaker volume).
  • Page 28 How to Return to Default Settings Quick Setup The default settings are different for each of the Quick Setup configurations (2-wire dial Hayes, 2-wire dial V.25bis, etc.). To return to the Quick Setup default settings for any of these configurations, go to the QUICK SETUP menu and select the desired configuration. Selecting a Quick Setup will not delete stored phone numbers.
  • Page 29 have selected a Quick Setup, the Quick Setup automatically selects an appropriate standard, and there is usually no reason to change the Communication Standard option.) The ALX V.34 and ALX V.34M modems normally use V.34 modulation to communicate with other V.34 modems or fallback modulations to connect with non-V.34 modems. The remaining ALX models normally use V.32bis modulation.
  • Page 30 • The ALX will use V.34 modulation to communication with other V.34 modems, but can also automatically fall back to V.32terbo, V.32bis or other modulations for compatibility with non-V.34 modems. This selection – available on the ALX V.34 and ALX V.34M only – stipulates “V.34 only”...
  • Page 31 Note – • Selecting the V.3x/208 Quick Setup sets the Communication Standard option to V3x/Bell208. • When the Communication Standard option is set to V3x/Bell208, the ALX will not handshake in V.22bis, Bell 212/103 or V.21/V.22/V.23 mode. • All information in the Bell208 section above also applies to V.3x/208 auto-detect mode. For further information on Bell 208 mode, see Chapter 3 (section titled Dumb Mode and Bell 208 Operation).
  • Page 32 V.34 Options The options listed in this section apply to V.34 operation only and are available on the ALX V.34 and ALX V.34M only. For normal operation, the V.34 options should not be changed from the default settings. Other settings are intended only for troubleshooting purposes and should be used only by appropriately trained personnel.
  • Page 33 Symbol Options - Asymmetric Symbol Rates Hayes, V.25bis, dumb, leased line modes (V.34 operation only) This option allows you to specify whether the modem’s transmitter and receiver symbol rates will always be equal (symmetric) or whether they may be different from one another (asymmetric).
  • Page 34 ENABLE Allows the transmitter and receiver data rates to be different. DISABLE Forces the data rates to be equal – both are equal to the lower data rate (i.e., transmitter rate or receiver rate). - Trellis Coding Type Hayes, V.25bis, dumb, leased line modes (V.34 operation only) This option allows the user to define the type of trellis coding to be used by the modem receiver during V.34 connections.
  • Page 35 NEGOTIABLE (NEG) The ALX determines whether precoding will be used or not. ON Precoding is forced on (always on). OFF Precoding is forced off (always off). - Shaping Hayes, V.25bis, dumb, leased line modes (V.34 operation only) Constellation shaping is a method for improving noise immunity. NEGOTIABLE (NEG) The ALX determines whether constellation shaping will be used or not.
  • Page 36 NEGOTIABLE (NEG) The ALX determines whether the signal constellation will be a 4- point constellation or a 16-point constellation. 16 QAM The ALX will use a 16-point constellation. 4 QAM The ALX will use a 4-point constellation. - End of V.34 Options - - Line Type All modes 2W-D...
  • Page 37 Symbol rate Rate at which symbols that carry data are generated. Symbol rate limits and options apply only to the ALX V.34 and ALX V.34M. Asymmetric rates Different rates on the modem’s transmitter and receiver. Using the Asymmetric Data Rates option and Asymmetric Symbol Rates, you can allow or disallow asymmetric data or symbol rates for V.34 operation only.
  • Page 38 • ALX V.32/19.2 and V.32/19.2M only: To connect at 19.2 or 16.8 Kbps, the modem at the other end of the link must be a V.32terbo modem or a Raymar-Telenetics 19.2-Kbps modem manufactured prior to adoption of the V.32terbo specification.
  • Page 39 • For 600- or 1200/75-bps operation, V.22bis/V.22/V.21/V.23 operating mode fallback option must be selected. To connect at 1200/75 bps, the minimum and maximum data rate must both be set at 1200/75 bps on both modems. Related options: Buffer Mode / Speed Conversion, Speed Matching, Forward Rate Renegotiation, Asynchronous Overspeed Range, DTE Speed.
  • Page 40 The available error correction options, described below, affect the type of error correction selected via the V42 SELECTION screen (see below), except that the MNP Class option is applicable only to MNP operation. The following sequence is suggested for selecting error correction options: First select the type of error correction desired from the V.42 SELECTION screen.
  • Page 41 - Break Handling Hayes, V.25bis, dumb, leased line modes (except V.33 and V.29) The Break Handling option applies only to asynchronous connections that use error correction or buffering, and it applies to the receive modem only. When error correction is active, a break signal from the DTE is relayed with a “break”...
  • Page 42 Note: If a connection cannot be established using the selected protocol (LAPM/MNP, LAPM ONLY or MNP ONLY), the action the ALX will take depends on the setting of the V.42 Mode option. - V.42bis Operation Hayes, V.25bis, dumb, leased line modes (except V.33 and V.29) V.42bis operation provides error correction with data compression.
  • Page 43 DTE speed refers to the speed of data transfer between the DTE and the local modem – it is not necessarily the same as the data transmission speed between the connected modems. If flow control is disabled, the DTE speed must be equal to or less than the modem speed, and the local and remote DTE speeds must be equal.
  • Page 44 Figure 2-1. Flow control options - DTE-DCE Flow Control Hayes, V.25bis, dumb, leased line modes (except V.33 and V.29) DC1/DC3 (XON/XOFF) Most common method of flow control. Inserts control characters ^S and ^Q into the data stream to stop (^S) and start/restart (^Q) the flow of data. (Also called software, logical, or in-band flow control.) NONE No flow control.
  • Page 45 - DCE-DTE Flow Control Hayes, V.25bis, dumb, leased line modes (except V.33 and V.29) All information given above under DTE-DCE Flow Control also applies to the DCE-DTE (modem to terminal) flow control option, except that the CTS, Clear to Send signal (not RTS), may be used to control DTE-DCE data flow.
  • Page 46 DIALER MODE OPTION - Dialer All modes The ALX autodialer can operate in several modes, or it can be turned off. The dialer modes listed below can be selected from the DIALER screen. HAYES The modem will automatically dial stored phone numbers and will respond to Hayes commands.
  • Page 47 - Data Format Options V.25bis, dumb, leased line modes The data type setting for the local modem and remote modem must be the same. ASYNCHRONOUS Data is transmitted and received as character asynchronous data. The character length (next option) must be the same for both communicating modems. SYNCHRONOUS Use this setting only if data is to be transmitted and received as synchronous data.

  • Page 48: Disconnect Options

    - Parity All modes (asynchronous operation only) Parity selections will be effective only if error correction or Buffer Mode has been enabled or if the ALX is in 2-wire dial Hayes mode. For most applications, parity should be set to NONE. The following parity options are available: NONE (no parity), ODD, EVEN, MARK (parity is always 1) and SPACE (parity is always 0).

  • Page 49: Test Options

    - TX (Transmit) Space Disconnect Hayes, V.25bis, dumb modes When TX Space Disconnect is enabled, the ALX will transmit a continuous space prior to disconnecting from the line. The duration of this space is either 1.6 seconds or 4 seconds, depending on the setting of the TX/RX Space option.

  • Page 50: Eia Options

    - DSR During Analog Loopback All modes When ON is selected, the Data Set Ready signal is forced on when the modem is in the analog loopback test mode. In general, this option should be left ON (the default selection). - Remote Test All modes The Remote Test option allows you to prevent remote digital loopback or remote digital...
  • Page 51 NORMAL The Clear to Send (CTS) signal is on while the modem is on-line. (In V.25bis mode, CTS follows DTR.) The CTS signal immediately follows the RTS signal with no delay. TRUE The CTS signal follows DTR. CTS can also be set to be always ON regardless of DTR by using the Summary Setup feature. (However, if CTS has been selected from DCE-DTE screen 1, V.42 flow control, while active, will override the CTS ON selection.) To set CTS ON, refer to the EIA INTERFACE OPTIONS diagram.

  • Page 52: Modem Setups

    - DTE Control of ALB (ALB- DTE Ctrl’ed) All modes (except half-duplex and V.13) Analog loopback (ALB) testing can be initiated from the DTE via pin 18. Positive voltage activates the test, whereas negative voltage results in normal operation. Disabling this option keeps the modem from responding to pin 18.
  • Page 53 Note: When the ALX is operated in V.29 Fast Master mode, the carrier detect level is fixed at -26 dBm, regardless of the Carrier Detect option setting. Leased Line Applications For leased line use, the carrier detect level can be set for -26, -33 or -43 dBm. The default setting is -26 dBm.
  • Page 54 - Compromise Equalizers (COMPR EQ) Hayes, V.25bis, dumb, leased line modes (V.32/V.32bis, V.32terbo and V.33 modes only) It is usually not necessary to adjust the modem’s compromise equalizers. However, in the event that an equalizer adjustment is needed, any of four types of compromise equalization can be selected: Type I (T-I on the LCD), Type II (T-II), Type III (T-III) and Type IV (T-IV).
  • Page 55 - T1 Timer Hayes, V.25bis, dumb modes The T1 Timer option is only effective if the Summary Setup Multimode Handshake option is set to 0 (T1 timer). The T1 Timer option determines how long the ALX modem will attempt to handshake with a calling V.32/V.32bis modem before falling back to a lower speed.
  • Page 56 - Front Panel Control All modes For security purposes, this option may be used to make it difficult for unauthorized users to modify the modem’s configuration. If Front Panel Control is disabled, the modem will not store Quick Setup selections or changes made through option screens accessed via the SETUP menus.
  • Page 57 required, the guard tone frequency can be set to 550 Hz or 1800 Hz (the most commonly used guard tone frequency). - V.8 Procedure Hayes, V.25bis, dumb modes The V.8 Procedure option selects either V.25 or V.8 procedures for starting data transmission sessions.
  • Page 58 - Training Length V.29, V.27 modes If you select the 2-Wire Dial V.27 Quick Setup, the Training Length option is automatically set to TER (V.27ter). For V.27bis leased line operation, select LONG if the line quality is poor. Select SHORT if the line quality is good.
  • Page 59 Note: The ALX also supports a CTS to EIA option, which is described earlier in this chapter under EIA Options. - RTS-CTS Delay (CTS Delay) V.33, 208, V.3x/208, V.29 modes The available RTS-to-CTS delay settings are 0, 15, 50, or 150 ms. The delay occurs when RTS changes from low to high.

  • Page 60: Setup

    - LCD Intensity All modes This option allows you to lighten or darken the characters on the LCD. For lighter characters, use pushbutton 1 (for DEC). For darker characters, use pushbutton 3 (INC). Use pushbutton 2 to select the desired intensity setting. OPTIONS ACCESSIBLE ONLY VIA SUMMARY SETUP SETUP screen 6 provides access to three special configuration screens: the Summary Setup screen, AT PROFILES screen and S-REG (S register) screen.
  • Page 61 EIA INTERFACE OPTIONS - CD and DSR Delay All leased line modes (except V.33 and V.29) Enabling this option may prevent unnecessary time-outs on certain systems when a line condition such as a line hit results in a loss of the Carrier Detect (CD) signal from the modem while the ALX retrains.
  • Page 62 ENABLE The ALX will pass flow control characters received from the remote modem to the local DTE. DISABLE The ALX will not pass flow control characters from the remote modem to the local DTE. Note: DCE Pass-through Flow Control will be disabled (regardless of ENABLE/DISABLE selection) if DCE-DTE Flow Control is set to NONE or CTS.
  • Page 63 ENABLE If an MPP password has been implemented, the ALX will cause the DTE to display a PASSWORD? query message when a remote modem attempts to call the local ALX. DISABLE The PASSWORD? query message will be suppressed. With the query suppressed, unauthorized users are not informed that a password is required;...
  • Page 64 ENABLE Selects compensated timing. Use this setting only for operation with earlier Alliance Series modems. Data Pump Options Speed Fallback is explained on page 75. The Speed Fallback option allows you to enable or disable Speed Fallback. - Auxiliary Channel All modes When an ALX V.32M, ALX V.32/14.4M, ALX V.32/19.2M or ALX V.34M modem is used to remotely control another ALX V.32M, ALX V.32/14.4M, ALX V.32/19.2M or ALX V.34M...
  • Page 65 - Turnaround Delay 208, V.3x/208 modes This option is intended for circuits where echo is a problem. It prevents the ALX from receiving an echo of its own transmitted data. When the Turnaround Delay option is enabled, CD (pin 8) is held low for 150 ms after RTS is turned off. If the modem detects an energy loss during the delay, it turns CD on 52 ms after the end of the delay.
  • Page 66 - Forward Rate Renegotiation Hayes, V.25bis, dumb modes This option allows you to enable or disable forward rate renegotiation during RRP (Rate Renegotiation Procedure). If Forward Rate Renegotiation is disabled, the ALX cannot automatically fall forward to a higher data rate during RRP – it can only fall back to a lower rate.
  • Page 67 ENABLE Enables V.3x/208 auto-detect mode – if the Communication Standard option is set to V3x/Bell208. (If you select the V.3x/208 Quick Setup, the ALX automatically sets the Communication Standard and V.3x/208 Auto-Detect Mode options to enable V.3x/208 auto- detect mode.) To enable V.3x/208 auto-detect mode, it is recommended that you use the V.3x/208 Quick Setup instead of the V.3x/208 Auto-Detect Mode option, because the Quick Setup sets all modem options to the most suitable settings.
  • Page 68 - Anti-Streaming Timer V.29 and V.27 modes If the ALX is operating in switched carrier mode, this option, if enabled, will protect against a streaming terminal. If RTS is high for more than 30 seconds, the modem will turn its transmitter off and ignore RTS until RTS goes low again.
  • Page 69 SHORT The TX space will be 1.6 seconds, and the RX space required for disconnect is 1 second or greater. - V.25bis DTR Dialing V.25bis mode This option enables or disables DTR dialing for V.25bis mode only. V.25bis DTR dialing will function only if this option is enabled and the V.25bis autodialer is enabled (via the V.25bis Dialer Modes option).
  • Page 70 DISABLE Conditions the originating modem to go on-line without requiring answer tone detection. This setting accommodates operation with automatic calling units that connect the modem to the line at the end of answer tone. - Multimode Handshake Hayes, V.25bis, dumb modes This option –...
  • Page 71 EXTENDED The ALX will handshake at speeds ranging from -2.5% underspeed to +2.3% overspeed. - Remote RTS Signaling All leased line modes (except V.33 and V.29) This option provides remote RTS signaling in asynchronous mode. When the Remote RTS Signaling option is on, the state of the Ready to Send (RTS) signal is transferred across the modem link (for diagnostic purposes) without affecting normal operation.
  • Page 72 When a remote originating modem attempts to establish an MNP connection with an ALX, the ALX (answer modem) will wait up to 3 seconds, by default, to receive the MNP link request. This option allows the user to configure the ALX to wait longer (7 seconds) for an MNP link request.

  • Page 73: Features

    CHAPTER THREE – GENERAL OPERATION and SPECIAL FEATURES This chapter describes the following ALX features and operational modes (listed here in the order in which they are presented): • Quick reset • Front panel autodialing • Automatic fallback and RRP •...
  • Page 74 How to Store a Phone Number This section explains how to store phone numbers using the modem’s front panel controls. To store numbers using the DTE keyboard, in Hayes and V.25bis modes, see Chapter 4 (Hayes mode) and 5 (V.25bis mode). To store a phone number using the modem’s front panel controls, follow these steps: 1.
  • Page 75 (A period may be used to indicate the end of a phone number stored via the ALX front panel. The autodialer ignores any characters that follow the period (e.g., characters remaining from a previously stored long number.) The phone number is saved when you return to the MAIN MENU. A phone number stored via the front panel will be displayed if Hayes or V.25bis commands are used for storing phone numbers or viewing stored phone numbers.

  • Page 76: Automatic Fallback

    cell number will change on the DIAL CELL: screen and on the AUTO-DIAL screen. The ALX will autodial the number stored in the currently displayed phone cell when DIAL is selected from the DIAL CELL: screen or from the AUTO-DIAL screen. When the local modem has successfully established a connection with the remote unit, the TIA/EIA status screen should be present.

  • Page 77: Operating Mode Fallback

    Operating Mode Fallback This section applies to Hayes, V.25bis and dumb mode only. When the ALX modem originates or answers a call, it determines from the “handshake” routine with the other modem the most efficient operating mode supported by the other modem and automatically enters that mode (subject to maximum and minimum speed limits you can select via the Speed Limit option).
  • Page 78 Alternate Fallback Operation If V.22bis/V.22/V.21/V.23 (alternate) fallback operation is enabled (as explained in the next section), the fallback modes listed below are available (for situations where V.34/V.32terbo/V.32bis/V.32 modes cannot be used). The modes are listed in the order in which they are attempted by the ALX modem.
  • Page 79 model in Chapter 2) and are also limited by the Speed Limit option minimum and maximum data rate and symbol rate settings. If satisfactory performance cannot be attained at any of the available data rates, the ALX will initiate a GSTN cleardown (line disconnect). If the originate modem attempts to negotiate a rate that is lower than the minimum rate setting of the answer modem, the answer modem will initiate a GSTN cleardown.

  • Page 80: Dumb Mode And Bell 208 Operation

    whereas operating mode fallback is determined by the modes supported by both communicating modems. DUMB MODE and BELL 208 OPERATION Bell 208 operation is available on all models except the ALX V.32 and ALX V.32M. For additional information on dumb mode, see Chapter 1. For additional Bell 208 information, see Chapter 1 and the Communication Standard section in Chapter 2.
  • Page 81 Answering a Data Call Manually An incoming call may be answered manually or automatically; although to answer a data call manually, the Auto-Answer option must be disabled (or S register S0 must be set to 0). Before the call is received, the ALX must be set to TALK, as explained in the previous section. The unit that will be switched to DATA mode first must be set for answer mode (using the answer/originate option).
  • Page 82 For successful data transfer, these options must be set in the same way on the originating modem as well – and the speed of the originating modem must be 4800 bps or higher. Bell 208 Operation If an answering ALX in V.3x/208 mode detects a Bell 208 modem, it will operate with the following options set as shown: •...

  • Page 83: Dtr Dialing

    V.26/V.26bis OPERATION The ALX modem can be configured for ITU-T V.26 or V.26bis operation. These two operating modes are described below: • V.26 mode – 4-wire leased line, 2400 bps, full duplex • V.26bis mode – 2-wire dialup line, 2400 bps, half duplex Note that these modes do not support automatic rate adjustment (fallback), the ALX Speed Limit option, error correction or ALX diagnostics.
  • Page 84 When DTR dialing is enabled, an OFF-to-ON transition of DTR causes the ALX to automatically dial the number stored in the phone cell displayed in the front panel AUTO-DIAL screen. DTR must remain on for at least 50 ms to affect automatic dialing. A 50-ms drop of DTR will abort the process or disconnect the call.
  • Page 85 AT &Zc=T555-4545/R where c is the number of the phone cell (0-49) where the number will be stored. Specifying the Phone Cell to be Used for Auto-Recovery The phone number that will be used for Dial-Line Auto-Recovery is the number stored in the phone cell currently displayed in the AUTO-DIAL screen.
  • Page 86 The following conditions are required for Leased Line Auto-Recovery: • Leased Line Auto-Recovery must be enabled (using the Leased Line Auto-Recovery Select option) on both communicating modems. • The Leased Line Auto-Recovery Select, Return and Test options must be set correctly on both communicating modems, as explained in the following sections.
  • Page 87 Exit From Leased Line Auto-Recovery If the Leased Line Auto-Recovery Return option is enabled (see below), the modem will automatically exit the Auto-Recovery mode when the leased line conditions are satisfactory. Any normal disconnects (such as loss of carrier or line current) may also disconnect the dial connections and return communication to the leased line.
  • Page 88 “RETURN IF GOOD > (10, 40, 60 or 120) s” means the modem will automatically exit the Leased Line Auto-Recovery mode when it tests and finds the leased line in good condition for more than the time period specified (10, 40, 60 or 120 s). If the Return option is set to OFF, the modem will stay in the Auto-Recovery mode indefinitely, unless you select HANGUP from the AUTO-DIAL screen or unless a loss of line current or other normal disconnect occurs.
  • Page 89 (as part of a security handshake), or they will not be able to connect. The originating and answer modems must both be Raymar-Telenetics ALX V.32M, V.32/14.4M, V.32/19.2M or V.34M modems.
  • Page 90 With either type of APP, each incoming call is password protected, yet there is no need for users to enter a password. Passwords are preprogrammed, sent over the modem’s auxiliary channel, and automatically compared by the ALX. The only time manual intervention is required is when the password (and callback number, if used) is established or changed.
  • Page 91 APP without Callback • Enter the same password in the front panel password screen (on the LCD) of the originating modem and answer modem. APP with Callback • Enter a password in the front panel password screen of the originating modem (the user password).
  • Page 92 Note: The change-password and clear password confirmation screens will not be displayed if the front panel is disabled. (See Front Panel Control in Chapter 2.) To change or establish the automatic password, select CHANGE from the PASSWORD screen. The change-password screen will be displayed. If a password has been previously programmed, it will be displayed.
  • Page 93 APP with Callback: Storing the Password with Callback Number This section applies only to APP with callback. If you have followed these instructions to this point, the user password will be stored in the front panel password screen of the originating modem, and a different password (the master password) will be stored in the front panel password screen of the answer ALX.
  • Page 94 Clearing the Password To clear the front panel password from memory, select CLEAR from the PASSWORD screen. The clear-password confirmation screen will be displayed. Press pushbutton 2 to confirm that you want to clear the password. If no password is stored, the ALX will be able to connect to other modems that are not equipped to use or are not configured to use an automatic password APP.
  • Page 95 Commands for Enabling MPP Modem configuration for MP is controlled from the DTE by a special set of password commands. These commands are implemented by using the Hayes AT &Z command to store them in memory. If an administrative password has been implemented, the front panel will be disabled and the AT &Z command will not function until it (the AT &Z command) is unlocked.
  • Page 96 Passwords • Passwords and commands may be entered in capitals or lowercase letters. (However, they will be stored and subsequently displayed as capitals.) Do not include numbers or spaces. • For MPP without callback, / must be the first character in a phone cell; for MPP with callback operation, a phone number must be listed first in a phone cell.
  • Page 97 To Unlock the &V and &Z Commands: If an administrative password has been implemented, the Hayes-compatible &V and &Z commands cannot be accessed unless they are first unlocked using the current administrative password. (&V is used to view the active modem configuration, stored phone numbers, password commands and passwords;...
  • Page 98 Upon receipt of the correct password, CANARY, the local ALX will call back the remote user at 555-1212. Once this connection is established, data may pass freely. Note: MPP passwords and callback numbers may only be stored in phone cells 2 through 49. To Program a Response to a Correct Password: Enter AT &Z0=/UMESSAGE...
  • Page 99 MODEM-CONTROLLED REMOTE CONTROL Certain ALX modems can be used to remotely control other ALX modems. Alternately, ALX modems may be remotely controlled from a computer or other DTE. This section explains modem-controlled remote control. Remote control from a DTE is explained later in this chapter, in the Diagnostic Port Control section.

  • Page 100: Remote Control Through A Rack Controller

    • A remote modem connected to any modem in the rack (address control mode only). Remote control through a rack controller is an especially valuable capability for modems used in Raymar-Telenetics’ high-density 16-slot rack enclosures. The low-profile modems specially designed for these racks are manufactured without an LCD user interface or control pushbuttons.
  • Page 101 The controlling modem must be an ALX V.32M, V.32/14.4M, V.32/19.2M or V.34M modem equipped with a front-panel LCD and pushbuttons. (Low-profile rack-mount versions of these modems cannot be used as controlling modems because they do not have LCDs and pushbuttons.) The controlling modem can control the following modems: ALX V.32 (model 2432 or newer), V.32M, V.32/14.4, V.32/14.4M, V.32/19.2, V.32/19.2M, V.34 and V.34M –...
  • Page 102 When the address or slot number you want is shown, press ENT. The LCD will return to REMOTE screen 2. 3. Initiate control After entering the address or slot number of the modem to be controlled, select CTRL from REMOTE screen 2. “CTRL” will flash on and off for about 7 seconds until the connection to the specified modem is made.
  • Page 103 Exiting from Remote Control Mode To exit from the address or slot control mode, press the ENT button five times in succession. (If the remote modem resets as a result of a configuration change, the local modem will appear to have no control.

  • Page 104: Control Commands

    Method 2: Switching the Modem’s DTE Connector Function As an alternative to using an additional cable to the diagnostic port (as described above), the Hayes mode command –N1 (AT –N1) can be issued to change the function of the modem’s DTE connector.
  • Page 105 Connect Command Syntax As detailed in Table 3-2, the CONNECT or CON command is used to connect to the diagnostic port of an ALX modem. The syntax for this command is explained below: When an address is specified with the CONNECT or CON command, leading zeros are ignored, meaning that any of the following forms will work: CONNECT 3,22 CONNECT 003,022...
  • Page 106 Performs same function as left arrow on the modem front < or panel. (Displays previous menu screen.) Resets the modem without changing option settings. (Does RESET not disconnect the control link.) Effects factory reset. (Reconfigures modem to Hayes mode FRESET default settings.) Disconnects the control link.

  • Page 107: Dte Displays

    DTE Displays Auto-Display When Auto-Display is enabled, an update of the LCD is automatically displayed on the DTE screen each time a command (E, 1, 2, 3, < or >) is entered to control the front panel LCD on the connected modem.
  • Page 108 SOFTWARE DOWNLOADING Raymar-Telenetics continually updates its modem software to provide new features and the highest possible level of performance. By using the ALX modem’s software downloading capability, you can update the modem’s internal software to the latest available revision level at a fraction of the cost of buying a new modem.
  • Page 109 The download procedure requires a password. This password is provided with the software file to be downloaded. If you do not know the password, contact Raymar-Telenetics’ Technical Support Team. You will need a communication software program to send the modem software file(s) from the DTE to the ALX.
  • Page 110 The DTE display will show this message: Permission granted. 4. Review steps 5 and 6; then enter one of the following commands (followed by Enter): AT *C Download controller software only. AT *P Download data pump software only. AT *M Download controller and data pump software.
  • Page 111 If for any reason downloading cannot proceed, the DTE will display a Download aborted message that will include the reason for the failure, and the modem will resume normal operation. If you encounter this message or any other difficulty, contact Raymar-Telenetics’ Technical Support Team.

  • Page 112: Hayes Emulation Mode

    CHAPTER FOUR – HAYES EMULATION MODE The main topics covered in this chapter are – • Hayes mode autodialer • Hayes-compatible commands • S registers • Selecting options in Hayes mode • User profiles • Facsimile (fax) transmission • Hayes mode reference tables (listed below) For easy reference, the following tables appear together at the end of this chapter: •...

  • Page 113: Command Guidelines

    Dialer mode If you enable the Hayes mode autodialer using the Dialer Mode option, no other options will be changed. To enable the autodialer this way, select DIALER from SETUP screen 2. Then select HAYES from the DIALER screen. Command Guidelines The following guidelines for using Hayes-compatible AT commands also provide a summary of Hayes mode autodialer operation.

  • Page 114: Result Codes

    AT DT 9,555-1212 The modifier T instructs the modem to tone dial, and the comma instructs it to pause after dialing 9 before dialing the remaining digits. A [CR] or period must be used at the end of a dial string.
  • Page 115 When answering a call, the ALX determines the transmission speed from the carrier signal of the originating modem. Change the speed (baud) setting of your equipment to match that of the remote system. Otherwise, unintelligible data will appear on your screen. (Depending on the parameter used with the X command, the speed will be indicated by the CONNECT result code.) Autobaud When a call is originated in Hayes mode, the AT attention code causes the ALX to autobaud.
  • Page 116 • A telephone number to be dialed, or • A string consisting of a phone number and dialing modifiers (e.g., T, P and ; ). An example of the D command is AT D3331234 In response to this command, the ALX dials the telephone number 333-1234, and then waits for a carrier tone from the distant modem (default wait time, 30 seconds).
  • Page 117 You must include the L modifier after a phone number, and prior to a [CR] or period. Include a number immediately after the L (e.g., L5) to specify the phone cell (0-49) that contains the alternate number to be linked to the first number. AT D 321-1212 L5 This command line instructs the modem to dial 321-1212;...
  • Page 118 S? – Read S register This command instructs the autodialer to read the contents of the specified S register. The syntax is Sr?, where r specifies the register to be read. For example, S7? reads the value of register S7. The value is displayed on the computer or terminal monitor. If you enter ? by itself, the autodialer will display the value of the last register used;...
  • Page 119 The second example illustrates one method of autodialing: Enter a dial string that ends with a semicolon, for example, AT DT9, 3331234; During the ring signal or when the call is answered, pick up the phone and enter AT H. You may then use a telephone connected to the ALX modem for voice communication.
  • Page 120 For pulse dialing, digits 0 through 9 can be stored; for tone dialing, 0 through 9, A through D, # and * can be stored. The dialing modifiers listed in Table 4-2 can also be stored. Fifty phone cells are available: 0-49. Each phone cell can hold up to 50 characters, maximum.
  • Page 121 A typical response might be meaning that the values in registers S0 and S7 are 1 and 30, respectively. To set or change a parameter, use the command S=, where the number of the register follows S and a value between 0 and 255 (the range of values that can be assigned to the registers) follows the equal sign: AT S0=5 This command will change the value stored in S0 to 5.
  • Page 122 mode to command mode). A value greater than 127 will disable escape sequence detection and prevent you from going into Hayes online command mode. S3 – Carriage return The value in register S3 defines the ASCII character used to terminate a command sequence.
  • Page 123 with no more time between them than the guard time delay. The unit for this register is 1/50 second (or 20 ms), meaning that the default value of 50 equals 1 second. If the guard time is zero, timing will not be a factor. The three escape characters can occur with any timing relationship, but they must be consecutive.
  • Page 124 Registers S43, S44, S64 and S65 – Rates Controlled by Each: Register ALX V.34 and V.34M All other models Max. TX DCE rate Max. DCE rate Min. TX DCE rate Min. DCE rate Max. RX DCE rate Does not apply Min.
  • Page 125 The default minimum data rate setting for all models is 14 (0-300 bps). For further information on speed limits and connect rates, see Chapter 2. S49 – Carrier detect level Register S46 selects the carrier detect (CD) level for dialup and leased line applications, as shown below: CD level, dBm value...

  • Page 126: Selecting Options In Hayes Mode

    DTE speed refers to the speed of data transfer between the DTE and the local modem – it is not necessarily the same as the data transmission speed between the connected modems. If flow control is disabled, the DTE speed must be equal to or less than the modem speed, and the local and remote DTE speeds must be equal.
  • Page 127 Active User Profile At any given time, the active user profile is either profile 0 or profile 1. The &Y command (default user profile) determines which profile is active at powerup. However, the Z command may be used to change the active profile: Z0 makes profile 0 active; Z1 makes profile 1 active. The active user profile is linked to the modem’s front panel (i.e., selections made using the front panel LCD), as explained below: •...
  • Page 128 Fax Software The fax capabilities of the ALX modem are accessed through an external fax software program only (not by commands sent directly by the user to the modem). To send and receive fax messages, follow the instructions provided with the fax software you are using. A partial list of fax software programs that are compatible with the ALX appears below: FaxTalk and FaxTalk Plus …...

  • Page 129: Hayes Mode Reference Tables

    HAYES MODE REFERENCE TABLES Table 4-1 lists the Hayes-compatible commands that can be used with the ALX modem. Table 4-1. Hayes-Compatible Commands Command Function / Explanation ANSWER No parameters. REPEAT PREVIOUS COMMAND No parameters. BELL/ITU-T COMPATIBILITY MODE Selects ITU-T V.22 mode (2100 Hz). Selects Bell 212A mode (2225 Hz).
  • Page 130 16.8 Kbps 19.2 Kbps 21.6 Kbps 24.0 Kbps 26.4 Kbps 28.8 Kbps Default settings (where applicable) are in bold face. PRODUCT CODE OR CHECKSUM Requests product code. Requests checksum for the ALX modem’s software. (Only a portion of the checksum displayed via the front panel will be displayed, in decimal format.) Requests verification of software checksum.
  • Page 131 Command Function / Explanation SELECT RESULT CODES Selects basic result codes, 0-4. Modem will blind dial (without dial tone). No speed indication; no busy or dial tone detect. Selects result codes 0 – 5, 10 – 15 and 18. Connection speed (up to 28.8 Kbps) indicated; no busy or dial tone detect. Selects result codes 0-6, 10-15 and 18.
  • Page 132 Command Function / Explanation &J Modem displays OK result code; command has no other effect. (The ALX modem is configured for A/A1 control or MI/MIC control via jumpers JP5 and JP6, as detailed in Appendix D.) &L Modem displays OK result code; command has no other effect. (The ALX modem is configured for leased line or dialup line operation via the front panel QUICK SETUP and/or LINE TYPE screens.)
  • Page 133 Command Function / Explanation VIEW ACTIVE CONFIGURATION, ETC. &V0 Displays modem configuration, user profiles and phone numbers stored in phone cells 0-5. &V1 Displays contents of phone cells 0-9. (Consecutively entering &V1 displays the contents of the next 10 phone cells: cells 10-19, then cells 20-29, etc.) &V2 Displays contents of phone cells 10-19.
  • Page 134 Command Function / Explanation V.42bis STRING LENGTH Sets maximum V.42bis string length to n characters (where n is a value from 6 to 250). Default string length = 16. V.42 BREAK HANDLING Selects normal break handling. Selects destructive/expedited break handling. Selects non-destructive/expedited break handling.
  • Page 135 Command Function / Explanation V.42 PASS-THROUGH FLOW CONTROL (First parameter controls DTE pass-through flow control; second parameter controls DCE pass-through flow control.) \X0,0 or \X0 Disables DTE and DCE pass-through flow control. \X1,1 or \X1 Enables DTE and DCE pass-through flow control. \X1,0 Enables DTE pass-through flow control;...
  • Page 136 Table 4-2. Dialing Modifiers (These modifiers may be used in any dial mode unless specifically stated otherwise.) Modifier Function / Explanation A B C (or) D Used in some private branch exchange (PBX) applications (tone dialing only). Links a phone number to another number to be dialed as an alternate.
  • Page 137 ERROR Error in command line, invalid command, command line exceeds 64 characters, or invalid character format. CONNECT 1200 Carrier detected at 1200 bps. NO DIALTONE No dial tone detected. BUSY Busy signal detected. NO ANSWER No period of silence detected. This code will appear only if @ (“wait for silence before dialing”) has been included in the dial string.

  • Page 138: Register Description

    Table 4-4. S Register Functions (Only registers intended for user access are listed.) Register Description Range Units Default Ring to answer on 0 – 255 rings Counts the number of rings 0 – 255 rings Escape sequence character 0 – 127 ASCII Carriage return character 0 –...

  • Page 139: V.25Bis Autodialer

    CHAPTER FIVE – V.25bis AUTODIALER In V.25bis mode, the ALX complies with ITU-T Recommendation V.25bis, an internationally recognized standard for serial automatic call origination and answering. The V.25bis autodialer uses the dialing command set defined by the V.25bis Recommendation. It allows you to store and dial phone numbers from the DTE in both synchronous and asynchronous applications.
  • Page 140 Dialer Mode (DIAL V25bis Screen) If you enable the V.25bis autodialer using the Dialer Mode option, no other options will be changed. To enable the autodialer this way, select DIALER from SETUP screen 2. Then select the V.25bis data protocol that is appropriate for the DTE to be used: asynchronous (V25 Async selection), synchronous character oriented (V25 Syn_c) or synchronous bit oriented (V25 Syn_b).
  • Page 141 CRN – Call request, number provided (Syntax: CRN 5557979) By using the CRN command, you can dial a number directly from the DTE keyboard. Numbers from 0 through 49 can be dialed, and if tone dialing is enabled, the characters A, B, C, D # and * can also be dialed. The dialing modifiers listed in Table 4-2 can be used with the CRN command to specify how or when a number should be dialed.
  • Page 142 LSN 00; 301 555 1234 LSN 01; 301 123 4567 LSN 02; 301 555 5555 (and so on through phone cell 49) If a phone cell is specified after RLN, e.g., RLN 5, the DTE display will show only the number stored in the specified phone cell.
  • Page 143 V.25bis RESULT CODES Table 5-2 explains the result codes, or responses that may be displayed on the DTE monitor in response to V.25bis commands. Table 5-2. V.25bis Result Codes Code Meaning Sent by – CFI AB Call failure – call aborted because of loss of DTR or because HANGUP was selected from front panel AUTO-DIAL screen.

  • Page 144: Message Format

    MESSAGE FORMAT The message format for V.25bis DTE to DCE communications is summarized below: Asynchronous MARK | MESSAGE | CR | LF | MARK This format uses one start bit, 8-bit data units and a 1-unit stop bit. The 8-bit data units are formed by a 7-bit IA5 character and an even parity bit.
  • Page 145 CHAPTER SIX – DIAGNOSTICS The troubleshooting information in this chapter applies to all ALX applications (all dialup and leased line modes), unless specifically stated otherwise. The major topics included in this chapter are – • Troubleshooting strategy • Overview of ALX diagnostics •...
  • Page 146 If You Need Assistance … If after testing you cannot correct the problem, contact Raymar-Telenetics’ Technical Support Team for assistance. OVERVIEW OF ALX DIAGNOSTICS Once you identify the symptoms and conduct a physical inspection of the sites in question, you can conduct diagnostic monitoring and testing to further isolate the problem.

  • Page 147: How To Select And Activate Tests

    Test Data Except for the self tests, the test data is generated by the user through the DTE or may be generated by an external bit rate error test (BERT). For self tests, and internal pattern generator in the ALX produces the test data. HOW TO SELECT AND ACTIVATE TESTS All tests can be initiated from the modem’s front panel LCD and pushbuttons, and most tests can also be initiated by AT commands when the ALX is in Hayes mode.

  • Page 148: Local Modem Diagnostics

    SPECIFIC TEST PROCEDURES Local Modem Diagnostics Local modem diagnostics are for testing the ALX modem and its adjoining system. These tests are accessed from the main menu and are easily performed if the ALX is attached to DTE or an external BERT.
  • Page 149 Select ON to activate the test. (In general, the DSR during ALB test option discussed in Chapter 2 should be left ON – the default selection – to avoid disrupting the DTE and DTE software operations.) The TIA/EIA status screen will be displayed while the test is being conducted. Ensure that test data is being generated.
  • Page 150 Front Panel Control From screen 2 of the LCD MAIN MENU, select TEST. This will take you to screen 1 of the LOCAL TEST menu, where ALBST will be visible as one of the selections. Select ALBST. The SELFTEST screen will be displayed, with ON and OFF as the possible selections. Select ON to activate the test.
  • Page 151 Figure 6-3. External analog loopback (ALBX) test IMPORTANT: The ALBX test may result in errors or may fail altogether even where conditions are satisfactory for normal operation. This is because the test channel presented to the modem during the ALBX test includes all impairments of both the inbound and outbound channels (amplitude distortion, delay distortion, noise, etc.).
  • Page 152 The TIA/EIA status screen will be displayed while the test is being conducted. If no external loopback is present, the status screen will display an “IDLE” message. If a loopback is present, handshake sequence codes will appear (H-01, etc.), followed by the modem speed. Ensure that test data is being generated.
  • Page 153 Figure 6-4. External analog loopback self test (ALXST) The ER indicator may flash on when the test is first turned on, but it should quickly go out and remain off until the end of the test. The information at the end of the previous section (for the ALBX test) concerning signal loss, loss of carrier and loss of RTS also apply to the ALXST.
  • Page 154 In the DLB test, the data to be sent and received is originated and checked by the DTE or external BERT. Figure 6-5 shows the data flow for this test. Figure 6-5. Digital loopback (DLB) test Note (V.34 models only): When the Asymmetric Data Rates option is enabled, the DLB test is disabled.

  • Page 155: Remote Modem Diagnostics

    Remote Modem Diagnostics The ALX is capable of performing two sets on compatible remote modems: remote digital loopback (RDL) and remote digital loopback self test (RDLST). If a problem is encountered and the local ALX passes all diagnostic tests, the local ALX can test the remote modem. There are two (noncontiguous) REMOTE TEST screens on the ALX LCD: (1) The remote tests are initiated from the REMOTE TEST menu.
  • Page 156 Front Panel Control From screen 2 of the MAIN MENU, select RMT, and then select TEST. From the REMOTE TEST menu, select RDL. From the REMOT DIGIT LOOP screen, select ON to activate the test. The status screen will be displayed as the test is being conducted.

  • Page 157: Status Screen

    Hayes Mode (&T7) Initiate the remote digital loopback self test by entering the command AT &T7. When the test is complete, the ALX will send a three-digit error result code to the terminal (in Hayes mode only). If there are no errors, this result code will be 000. If there are errors, the code will range from 001 (1 error) to 255.
  • Page 158 Checksum Screens By pressing pushbutton 1 while the TIA/EIA status screen is displayed, you can access a CHECKSUM menu that leads to several checksum screens. These screens are intended for use by servicing personnel. They show revision levels and checksums for the main processor and data pump software.
  • Page 159 • SIZE Shows size of data packets (MNP) or blocks (V.42/V.42bis) currently being transmitted. MNP uses “shorter” packets to transmit through noisy lines and “longer” packets (which allow greater throughput) when line conditions are good. The maximum MNP packet size is 256 characters (MNP classes 4 and 5) or 64 (MNP classes 1-3). The block size for V.42/V.42bis is fixed at 128 characters.
  • Page 160 If you select DOWN from the RATE screen, the ALX will fall back to the next lower speed. If you select UP, the modem will fall forward to the next higher speed – if the signal quality is good enough. The range within which the ALX can fall forward or fall back is limited by the Speed Limit option minimum and maximum data rate and symbol rate settings.

  • Page 161: Appendix A - Technical Data

    The low-profile rack-mount modems are designed for use in Raymar- Telenetics’ 1616 rack enclosure, which can hold up to 16 modems. For further information on the low-profile rack-mount modems, see Appendix E.

  • Page 162: Specifications

    SPECIFICATIONS Table A-1 lists the specifications of the Alliance Series modems. Table A-1. Specifications - Operational Specifications - V.34 28.8, 26.4, 24.0, 21.6, 19.2, 16.8, 14.4 and 12.0 Compatibility Kbps, 9600, 7200, 4800 and 2400 bps V.33 14.4 and 12.0 Kbps V.32terbo 19.2 and 16.8 Kbps V.32bis...
  • Page 163 ALX V.32/14.4 and V.32/14.4M: Dial modes: 300 bps – 14.4 Kbps Leased line modes: 2400 bps – 14.4 Kbps ALX V.32 and ALX V.32M: Dial modes: 300 – 9600 bps Leased line modes: 2400 bps – 9600 Kbps See also Compatibility on previous page. Supported 300 bps –...

  • Page 164: Physical Specifications

    Data format - Asynchronous: 9, 10 or 11 bits, serial, binary - Synchronous: Serial, binary V.32terbo, V.32bis, V.32 operation: Equalization Receiver: Automatic adaptive equalization Transmitter: Selectable compromise equalization (4 types) V.34 operation (V.34 models only): Adaptive pre-emphasis Precoding Transmit timing Internal, external, or slaved to receive clock Transmit level - Leased: Selectable, 0 to -15 dBm...

  • Page 165: Regulatory Information

    Interface Terminal: RS-232C/D, ITU-T V.24/V.28 Telephone line: - Dialup – 8-pin RJ-45 modular connector with A/A1 and MI/MIC control - Leased line – 6-pin RJ-11 modular connector - Diagnostic port: 8-pin RJ-45 modular connector Line requirement Unconditioned AC power - Stand-alone: 90 – 132 VAC, 60 Hz +/- 5% or 198 –...

  • Page 166: Appendix B - Quick Setup Configuration

    APPENDIX B – QUICK SETUP CONFIGURATIONS Tables B-1 and B-2 show the modem configuration – i.e., the default setting for each option – for each of the Quick Setup modes. When you select a Quick Setup, the modem automatically sets all options as indicated in the table.
  • Page 167 Table B-1. Quick Setup Configurations (See Table B-2 for additional Quick Setup configurations.) Default settings listed by Quick Setup mode Option V.25bis 2-wire 4-wire Hayes async Dumb leased leased V.33 Communication Standard option AUTO V.34 AUTO V.34 AUTO V.34 AUTO V.34 AUTO V.34 V.33 V.34 options...
  • Page 168 Default settings listed by Quick Setup mode Option V.25bis 2-wire 4-wire Hayes async Dumb leased leased V.33 SHAPING NONLINEAR ENCODING PH4 CONST Line Type Option LINE TYPE 2W-D 2W-D 2W-D 2W-LL 4W-LL 4W-LL Speed Limit Option ALX V.34 and ALX V.34M MAX TX DCE 28.8 K 28.8 K...
  • Page 169 Default settings listed by Quick Setup mode Option V.25bis 2-wire 4-wire Hayes async Dumb leased leased V.33 BUFFER Enable Enable Enable Enable Enable Disable DTE SPEED 38.4 K 38.4 K 38.4 K 38.4 K 38.4 K 38.4 K FLOW CONTROL, DC1/DC3 DC1/DC3 DC1/DC3...
  • Page 170 Default settings listed by Quick Setup mode Option V.25bis 2-wire 4-wire Hayes async Dumb leased leased V.33 Test options DSR DURING REMOTE Enable Enable Enable Enable Enable Enable TEST EIA options CTS TO EIA True Normal Normal Normal Normal CD TO EIA Normal Normal Normal...
  • Page 171 Default settings listed by Quick Setup mode Option V.25bis 2-wire 4-wire Hayes async Dumb leased leased V.33 AUTO- Enable Enable Enable Enable Enable Enable RETRAIN ANS/ORG ORIG ORIG ORIG See footnote 2 See footnote 2 ORIG DEFAULT ANS TONE 2100 Hz 2100 Hz 2100 Hz 2100 Hz...
  • Page 172 Table B-2. Quick Setup Configurations (See Table B-1 for additional Quick Setup configurations.) Default settings listed by Quick Setup mode Option Bell 4-wire leased V.29 fast V.29 fast V.27 V.29 master slave Communication Standard option V.29 V.29 V.29 V.27 V.34 options (Available on ALX V.34 and ALX V.34M only.) CHANNEL Enable...
  • Page 173 Default settings listed by Quick Setup mode Option Bell 4-wire leased V.29 fast V.29 fast V.27 V.29 master slave SHAPING NONLINEAR ENCODING PH4 CONST Line Type option LINE TYPE 2W-D 4W-LL 4W-LL 4W-LL 2W-D Speed Limit option ALX V.34 and ALX V.34M MAX TX DCE 4800 9600...
  • Page 174 Default settings listed by Quick Setup mode Option Bell 4-wire leased V.29 fast V.29 fast V.27 V.29 master slave BUFFER Disable Disable Disable Disable Disable DTE SPEED 38.4 K 38.4 K 38.4 K 38.4 K 38.4 K FLOW CONTROL, DC1/DC3 DC1/DC3 DC1/DC3 DC1/DC3...
  • Page 175 Default settings listed by Quick Setup mode Option Bell 4-wire leased V.29 fast V.29 fast V.27 V.29 master slave Test options DSR DURING REMOTE Enable Enable Enable Enable Enable TEST EIA options CTS TO EIA Normal Normal Normal Normal Normal CD TO EIA Normal Normal...
  • Page 176 Default settings listed by Quick Setup mode Option Bell 4-wire leased V.29 fast V.29 fast V.27 V.29 master slave AUTO- Enable Enable Disable Disable Enable RETRAIN ANS/ORG ORIG ORIG ORIG ORIG DEFAULT ANS TONE 2100 Hz 2100 Hz 2100 Hz 2100 Hz 2100 Hz FRONT PANEL...

  • Page 177: Appendix C - Quick-Change Configuration Screens

    APPENDIX C – QUICK-CHANGE CONFIGURATION SCREENS Three Quick-Change configuration screens accessible through SETUP screen 6 on the front panel LCD allow users to quickly and selectively change multiple option settings or S register values from a single screen. Use of these screens is recommended for experienced users only because option settings are shown only as numbers and there is very little guidance on the LCD screen to indicate which option is being changed.
  • Page 178 Accessing the Quick-Change Screens To access the Quick-Change screens, use pushbutton 1 to select SUMMARY from SETUP screen 6. The ALX will display the SUMMARY menu: From this screen, select – • SETUPS to access Summary Setup, • AT to access the AT PROFILES screen, or •...
  • Page 179 (dial line options, EIA interface options, etc.). Each digit within the number string represents an option, and the specific value of each digit (0, 1, E, etc.) indicates the current option setting. On the following pages are diagrams that show – •...
  • Page 180 Note 1: Settings for Speed Limit screens are (in bps): 0=28.8 K, 1=26.4 K, 2=24.0 K, 3=21.6 K, 4=19.2 K, 5=16.8 K, 6=14.4 K, 7=12.0 K, 8=9600, 9=7200, A=4800, B=2400, C=1200, D=600, E=0-300, F=1200/75. However, Speed Limit settings for each ALX model can only be set within the range shown in the table in Chapter 2.
  • Page 181 Options shown in bold type are accessible only via Summary Setup screens. Options in normal type can also be accessed through additional (individual) LCD screens (e.g., the TX LEVEL screen). 0049-2702-XXX Alliance Series Modems – USER MANUAL 08/05/2010 Rev. A Page 177 of 197...
  • Page 182 0049-2702-XXX Alliance Series Modems – USER MANUAL 08/05/2010 Rev. A Page 178 of 197...
  • Page 183 NOTE: ALX V.32, V.32/14.4, V.32/19.2 and V.34 only: Default auxiliary channel setting: 1. 0049-2702-XXX Alliance Series Modems – USER MANUAL 08/05/2010 Rev. A Page 179 of 197...
  • Page 184 Note 2: Settings for Speed Limit screens are (in sym/s): 0=2400, 1-2743, 2=2800, 3=3000, 4=3200, 5=3429. Speed Limit: Data rates: See PRIMARY OPTIONS. 0049-2702-XXX Alliance Series Modems – USER MANUAL 08/05/2010 Rev. A Page 180 of 197...
  • Page 185 0049-2702-XXX Alliance Series Modems – USER MANUAL 08/05/2010 Rev. A Page 181 of 197...
  • Page 186 AT PROFILES SCREEN For Hayes mode operation (only), choose AT from the SUMMARY menu to modify Hayes mode user profiles (0 or 1). The ALX will display the AT PROFILES screen, which allows you to select user profile 0 (pushbutton 1) or 1 (pushbutton 2) for viewing or modification. The selected profile is used as the active configuration and is also designated as the default user profile.
  • Page 187 S-REG SCREEN The S-REG screen may be used to read or change the value stored in an S register. (See Chapter 4 for a complete explanation of S registers.) Not all S registers are intended for user access. Do not change the value of an S register if you do not know the register’s function.

  • Page 188: Appendix D - Connectors, Adapters And Jumpers

    APPENDIX D – CONNECTORS, ADAPTERS, and JUMPERS This appendix provides a detailed description of all modem connectors, including pin assignments. It also includes a description of the modem jumper functions and a diagram that shows you where to find the jumpers. CONNECTORS and ADAPTERS The ALX includes the following connectors (labeled on the rear panel as indicated below): •...
  • Page 189 Figure D-1. Connector pin assignments 0049-2702-XXX Alliance Series Modems – USER MANUAL 08/05/2010 Rev. A Page 185 of 197...
  • Page 190 Table D-1. Pin Assignments - DB-25 TIA/EIA Interface Connector Designation Function Source ITU-T Frame ground – not connected Transmit (send) data (TD) Received data (RD) Modem Request to send (RTS) Clear to send (CTS) Modem Data set (modem) ready (DSR) Modem Signal ground (SG) Ground...
  • Page 191 RJ-45 to DB-25 Cable Adapters Three types of cable adapters are available to convert the RJ-45 pinout to a DB-25 pinout if necessary. These adapters are illustrated in Figure D-2. Figure D-2. RJ-45 to DB-25 adapter types 0049-2702-XXX Alliance Series Modems – USER MANUAL 08/05/2010 Rev.
  • Page 192 JUMPERS WARNING: Jumpers should be switched only by qualified service personnel. For most applications, there is no need to reset the modem’s internal jumper switches. However, a jumper switch will have to be reset if you need to – • Connect frame ground to signal ground, •...
  • Page 193 Figure D-3. Partial view of modem circuit board, showing jumper locations Table D-2. ALX Modem Jumper Settings Jumper(s) Pins 1 and 2 connected: Pins 2 and 3 connected: Frame and signal ground Frame and signal ground connected not connected JP2, JP3, JP4 DC power AC power (Set to same position.)

  • Page 194: Appendix E - Low-Profile Rack-Mount Modem

    APPENDIX E – LOW-PROFILE RACK-MOUNT MODEM DESCRIPTION Low-profile rack-mount versions are available for all Alliance Series models. This appendix applies only to the low-profile rack-mount versions. (Operating information for full-size rack- mount Alliance Series modems is the same as for their stand-alone counterparts; i.e., as detailed in the main body of this manual.) The modified front panel of the low-profile rack-mount modem (Figure E-1) allows 16 low- profile modems to be housed in a single high-density rack enclosure.

  • Page 195: Status Indicators

    INSTALLATION To install the low-profile ALX modem, follow the installation instructions in the rack enclosure manual. IMPORTANT: The factory default address is 999,999. The address must be changed to a unique address (with respect to the system the modem is a part of) so the unit can be individually addressed.
  • Page 196 This method of control is also described in Chapter 3. See the section titled Remote Control through a Rack Controller. • Low-profile modems in a rack can also be controlled from a computer running network management software. The required software is available from Raymar-Telenetics. 0049-2702-XXX Alliance Series Modems – USER MANUAL 08/05/2010 Rev.

  • Page 197: Appendix F - Regulatory Notices

    APPENDIX F – REGULATORY NOTICES USE in the UNITED STATES WARNING: This equipment generates, uses, and can radiate radio frequency energy. If not installed and used in accordance with this instruction manual, it may cause interference to radio communication. It has been tested and found to comply with the limits for a Class A computing device pursuant to Part 15, Subpart J, of the Federal Communications Commission (FCC) rules, which are designed to provide reasonable protection against such interference when the equipment is operated in a commercial environment.
  • Page 198 In the event of equipment malfunction, all repairs should be performed by Raymar-Telenetics. It is the responsibility of users requiring service to report the need for service to Raymar- Telenetics. Service may be obtained at the address and telephone number listed on the title page of this manual.
  • Page 199 Before installing this equipment, users should ensure that it is permissible for connection to the facilities of the local telecommunications company. The equipment must be installed using an acceptable method of connection. In some cases, the company’s inside wiring associated with a single line individual service may be extended by means of a certified connector assembly (telephone extension cord).

  • Page 200: Limited Warranty

    Raymar Information Technology, Inc., dba Raymar-Telenetics, warrants their products against defects in hardware, material and workmanship under normal use for one (1) year from the date of purchase. Raymar will, at no charge, either repair the product (with new or reconditioned parts), or replace it (with a new or reconditioned product).

  • Page 201: Rma Procedure

    Return Merchandise Authorization (RMA) Procedure Before returning any Raymar-Telenetics product, an RMA number must be obtained. The most convenient way to obtain an RMA number for a product purchased from Raymar-Telenetics is to call 1-800-747-1522 (+1-916-783-1951). When doing so, please have the following information...

This manual is also suitable for:

Alliance v.34Alliance v.32/14.4Alliance v.32Alliance v.32/19.2mAlliance v.32/19.2Alliance v.32/14.4m

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