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Boca Pro16 Series Reference Manual

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R A C K
Reference
Guide
Product Code:
PRO16RK: Boca PRO16 Rack Chassis
PRO16RM: Boca PRO16 Rack Modem
PRO16RC: Boca PRO16 Rack Controller
PRO16RP: Boca PRO16 Rack Power Supply

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Summary of Contents for Boca Pro16 Series

  • Page 1 R A C K Reference Guide Product Code: PRO16RK: Boca PRO16 Rack Chassis PRO16RM: Boca PRO16 Rack Modem PRO16RC: Boca PRO16 Rack Controller PRO16RP: Boca PRO16 Rack Power Supply...
  • Page 2 BOCA PRO16 Reference Guide...

  • Page 3: Table Of Contents

    Local Analog Loopback & Self Test - &T8 ... 26 Error Correction ..............27 Error Correction Protocols ........27 Data Compression ........... 28 Reliable Mode ............29 Auto-Reliable Mode ..........29 Improving Performance with MNP 10 ....30 BOCA PRO16 Reference Guide...
  • Page 4 Additional User Options ........48 Up/Downloading SuperSecure Database ... 49 Security Database Lock Option ......50 Outdial Disable Option ........... 50 Dial Stored Phone Numbers Only Option ... 50 General Notes on Data Security ......51 BOCA PRO16 Reference Guide...
  • Page 5 Dialing in Dumb Mode ........... 63 Dialing with telephone handset ...... 63 Using DTR to Dial ..........64 Answering Calls in Dumb Mode ......65 Automatic Answering ........65 Manual Answering ........... 66 The Option Switches ..........67 BOCA PRO16 Reference Guide...
  • Page 6 S Register Settings and Modem Memory ..170 Alphabetical S Register Listing ......173 Full S Register details ..........174 Troubleshooting ............... 201 Introduction ............201 Some Problems and Solutions ......201 Troubleshooting Flow Chart ........ 205 Testing Your Modem ..........207 BOCA PRO16 Reference Guide...
  • Page 7 Appendices ................ 214 Appendix A ............. 214 Modem Response Codes........214 V.25bis Indications .......... 215 Appendix B ............. 216 ASCII Table ............. 216 Appendix C ............. 217 RS-232 Signals ............217 Glossary ................220 Index ................... 241 BOCA PRO16 Reference Guide...

  • Page 8: Introduction

    Introduction INTRODUCTION Welcome to the Boca PRO16 Reference Guide, a comprehensive guide to the efficient use of your modem. This reference manual provides all the information needed to make maximum use of your equipment and software. How to Use This Guide...
  • Page 9 Sample Setups Provides sample setups showing how commands can be combined. Appendices The appendices contain useful lists, as well as an ASCII table. Glossary of Communications Terms Provides descriptions of modem, facsimile and other communications terms. BOCA PRO16 Reference Guide...

  • Page 10: Conventions

    Note that we do not use a (.) full stop after an action statement. We do that to avoid confusion when you are asked to type commands and other information. When we list general information, we use a box (o), like this: How to begin dialing Using MNP for error-free communication BOCA PRO16 Reference Guide...
  • Page 11 For example, if the default was AT&G0 in this list: AT&G0 Do not generate guard tones AT&G1 Generate Guard tones of 550Hz AT&G2 Generate Guard tones of 1800Hz There is a Glossary at the back of this Reference Guide to assist you with unfamiliar words. BOCA PRO16 Reference Guide...

  • Page 12: Getting Started

    D command is: ATD NUMBER where the number is the telephone number you are dialing. Having set your communications software for 2400 bps operation: • Type: ATD01234 <E> Your modem will begin to dial. BOCA PRO16 Reference Guide...

  • Page 13: Dial Modifiers

    Most PBXs require you to dial 0 or 9 (in order to obtain an outside line) and wait for a dial tone before dialing the actual phone number. Using dial modifiers, you can successfully dial the phone number 12345 through a PBX using the command: ATD0,12345 BOCA PRO16 Reference Guide...
  • Page 14 T and P dial modifiers in the following way: ATDT0,P12345 The modem tone dials 0 to request an external line, waits for the PBX to obtain the line and then pulse dials 12345. BOCA PRO16 Reference Guide...

  • Page 15: Hanging Up

    This is similar to ‘abbreviated dialing’, which may be supported by your telephone. To store a phone number use the &Z command. For example: • Type: AT&Z1=012345 <E> The phone number 012345 will be stored as phone number one. BOCA PRO16 Reference Guide...

  • Page 16: Answering Calls

    Asynchronous Local Command State ATA or Incoming call Connection failed Connection established Asynchronous On-line State Escape sequence entered (+++) Local Command State ATH issued Carrier lost or Hang Up lowered (&D2) BOCA PRO16 Reference Guide...
  • Page 17 As soon as a connection is established, the modem will send a CON- NECT message to your computer and enter on-line state in answer mode. BOCA PRO16 Reference Guide...

  • Page 18: The At Commands

    To make this command more readable, you can add spaces between the two commands: • Type in the command: AT I9 I9 <E> The modem will execute the command as if the spaces are not there. BOCA PRO16 Reference Guide...

  • Page 19: The Escape Sequence

    OK message to indicate it has returned to local com- mand state. You will be able to view the modem’s firmware identity. Before continuing: • Type: AT&T0 <E> This command is used to halt the test. BOCA PRO16 Reference Guide...

  • Page 20: The Repeat Command

    For example: After a command is successfully executed, the response is: OK After a connection is established, the response is: CONNECT A complete list of Response Codes can be found in Appendix A. BOCA PRO16 Reference Guide...

  • Page 21: Testing

    The Local Analog Loopback test checks the flow of data between your computer and the modem. With this test, the modem loops back any characters you type at the keyboard. Modem Transmitter Computer Receiver Local Analog Loopback Test BOCA PRO16 Reference Guide...

  • Page 22: Local Digital Loopback Test: &T3

    This test is not available when V.21, V.23, V.32, Bell 103 or Bell 212A communication is selected. Error correction must be switched off prior to starting the test. Modem Remote Modem Receiver Transmitter Remote Computer Transmitter Receiver Local Digital Loopback Test BOCA PRO16 Reference Guide...

  • Page 23: Grant Rdl From Remote Modem: &T4

    This test is not available when V.21, V.23, V.32, Bell 103 or Bell 212A communication is selected. Error correction must be switched off prior to starting the test. BOCA PRO16 Reference Guide...
  • Page 24 If the majority of the test you are receiving is corrupted, either the remote system or your modem is to blame. Perform a local analog loopback test to check the operation of your modem. BOCA PRO16 Reference Guide...

  • Page 25: Remote Digital Loopback With Self Test: &T7

    255 indicates that 255 or more errors occurred during the test. If you have set the test timer, the test will be automatically terminated, and an OK message will appear when the timer expires. BOCA PRO16 Reference Guide...

  • Page 26: Local Analog Loopback & Self Test: &T8

    255 indicates that 255 or more errors occurred during the test. If you have set the test timer, the test will be automatically terminated, and an OK message will appear when the timer expires. BOCA PRO16 Reference Guide...

  • Page 27: Error Correction

    V.42, it outperforms V.42. The section titled “Which Error Correction Do I Use?” provides more information about the performance and compatibility merits of V.42 and MNP. The \N command is used to select the type of error correction used by your modem. BOCA PRO16 Reference Guide...

  • Page 28: Data Compression

    If possible, use one of the many popular data compression programs available for computers to compress applications, graphics and other non-text files. The %C command is used to select the type of data correction used by your modem. BOCA PRO16 Reference Guide...

  • Page 29: Reliable Mode

    57,600 bps connection with error correction CONNECT 76800/REL 76,800 bps connection with error correction CONNECT 96000/REL 96,000 bps connection with error correction CONNECT 115200/REL 115,200 bps connection with error correction CONNECT 230400/REL 230,400 bps connection with error correction BOCA PRO16 Reference Guide...

  • Page 30: Improving Performance With Mnp 10

    MNP 10 modem, thus introducing errors into your data, and the smallest packet size is being used, the modems will ‘step-down’ in speed until the error rate BOCA PRO16 Reference Guide...

  • Page 31: Speed Changes

    Cellular Modem Users If you are making modem calls with a cellular phone, issue the AT#K2 command. This tells MNP 10 to try even harder to maintain the connection if your cellular call momentarily drops out. BOCA PRO16 Reference Guide...

  • Page 32: Which Error Correction Do I Use

    V.42bis auto-reliable mode is probably the best alternative (AT\N3%C2). V.42/V.42bis auto-reliable mode will also connect to another modem that supports MNP with V.42bis data compression. For overseas or cellular connections, use MNP 10 if possible (AT\N3%C2#K1). BOCA PRO16 Reference Guide...

  • Page 33: Increasing Data Throughput With

    In addition to the information in the Modem Reference Guide, the follow- ing details are applicable specifically to the ProRack Modem. The PRO16RK modem supports eight special CONNECT messages for connections made with either reliable or auto-reliable modes. BOCA PRO16 Reference Guide...
  • Page 34 19,200 bps. If you wish to run at high speeds, you should install a COM port that has a 16550 chip in place of your regular COM port. The 16550 chip allows your computer to accept data at very high speeds. BOCA PRO16 Reference Guide...

  • Page 35: Security And Encryption

    • Type: AT#S <E> A prompt will appear: Enter Security Password: When you first receive your modem, all passwords will be set as a single ENTER. •Press the ENTER key The Security Menu will be displayed: BOCA PRO16 Reference Guide...

  • Page 36: Entering A Security Password

    • Type in your new password <E> You will be prompted to re-enter the new security password. • Type in your new password again <E> Your new password will be stored in your modem’s non-volatile memory. BOCA PRO16 Reference Guide...

  • Page 37: Adding And Changing Users

    To remove an individual user: • Select option 2 from the Security Menu You will be prompted to enter a new user name. • Type in the name of the user you wish to delete <E> BOCA PRO16 Reference Guide...

  • Page 38: Listing Existing Users

    • Select option 4 to view the access record <E> An unusually high number of unsuccessful attempts to connect with a particular user name may indicate someone is trying to violate your modem’s security. BOCA PRO16 Reference Guide...

  • Page 39: Enabling Modem Security

    The Quit Security Menu option allows you to return to local command state from the security menu. • Press 0 <E> Your modem will issue an OK message. You will be returned to local command state. BOCA PRO16 Reference Guide...

  • Page 40: Callback Security

    After the user has called back and has completed the call, your modem will hang up, automatically issue an ATZ command to restore all the stored settings and return to local command state, ready to answer incoming calls. BOCA PRO16 Reference Guide...

  • Page 41: Downloading The Security File

    The upload will take place at the current terminal speed. The modem can accept data at 115Kbps. If the data is not in the correct format, the file can be corrupted, so edit with care and always keep a copy of the unmodified download file. BOCA PRO16 Reference Guide...

  • Page 42: Encryption

    • Type in the Key previously stored in the modem <E> When you enter the Key, each character will appear on your computer screen as the S character. After successfully entering the Key, the Encryption Controls Menu will appear on your screen. BOCA PRO16 Reference Guide...

  • Page 43: Supersecure Advanced Security Mode

    Have an individual password and an individual DES KEY. Automatically change the DES key in a random manner after each connection without the keys ever being knowable. Have a different password on the answering modem to the originating modem. Timed expiration of passwords. BOCA PRO16 Reference Guide...

  • Page 44: Entering A Key For Each User

    • Press ENTER at the username prompt to return to the menu You do not have to turn security on to use SuperSecure. The #E2 option forces it on always. • Enter 0 to exit the security menu BOCA PRO16 Reference Guide...

  • Page 45: Accessing A System Using Supersecure

    The data will be correct and error free, but encrypted on the line using a KEY unknown to anyone. Disconnection If the primary DES KEY mismatches you will not be able to read the “username” prompt. BOCA PRO16 Reference Guide...

  • Page 46: Enabling Rotating Secondary Keys

    If an event occurs that corrupts the KEY, IV or KE on either modem, then both modems will have to be manually set back to a known starting point. To ensure random unknown keys, make two connections between the secure modems after they have been initialized. BOCA PRO16 Reference Guide...

  • Page 47: Symmetrical Operation

    Therefore the expiration timers actually time the number of days that the modem is turned on and not elapsed days Entering a Password in the Remote Modem’s Database When connected in SuperSecure, you may change your password. BOCA PRO16 Reference Guide...

  • Page 48: Entering In Local Modem Database

    • If you key **** you will be able to issue almost all AT commands on the remote modem and access the full security database if you have the global security password. (See remote access) BOCA PRO16 Reference Guide...

  • Page 49: Up/Downloading Supersecure Database

    • ddd is 3 digit days since password change • eee is 3 digit reserved • fff is 3 digit reserved • ggg is 3 digit reserved The control number should not be touched on existing users. BOCA PRO16 Reference Guide...

  • Page 50: Security Database Lock Option

    The stored numbers must then be dialed using the ATDS=X command where X is the position of the stored number as set with the AT&Z command. New stored numbers cannot be added by the user once the dial restric- tion has been enabled. BOCA PRO16 Reference Guide...

  • Page 51: General Notes On Data Security

    With specialized equipment, the data on the lines and the image on an screen can be read, due to wires and video screens radiating radio frequency signals which can be picked up over a distance. You may need advice on radio frequency screening if this concerns you. BOCA PRO16 Reference Guide...

  • Page 52: Synchronous Modes

    When synchronous mode is selected, your modem cannot operate in constant speed mode or use the error correction or data compression facilities of the modem. Only variable speed mode is available in synchronous connections (this refers to the modem’s terminal speed). BOCA PRO16 Reference Guide...

  • Page 53: Line Speeds

    The computer required to support synchronous communication with your modem must be capable of switching between synchronous and asynchronous modes with the same RS-232 port, as well as controlling the state of the DTR signal under software supervision. BOCA PRO16 Reference Guide...

  • Page 54: Selecting

    X, V and Q commands. As soon as a connection can be established, your modem will assert CTS and enter synchronous on-line state. If connection cannot be made, your modem will hang up and return to asynchronous local command state. BOCA PRO16 Reference Guide...

  • Page 55: Hanging Up

    See the Command Descriptions chapter of this guide for details on the &Z command. Before connecting your modem to your synchronous terminal, the modem must first be configured using an asynchronous terminal or computer. BOCA PRO16 Reference Guide...

  • Page 56: Selecting

    Dialing will commence as soon as the DTR signal is asserted (an OFF-ON transition occurs). Your modem will not generate response codes when synchronous mode 2 is selected. All call progress is indicated by your modem’s speaker (the M command controls the operation of your modem’s speaker). BOCA PRO16 Reference Guide...

  • Page 57: Hanging Up

    If you use &L2 or &L3 to select Auto leased line operation, you do not need to issue the ATA or ATD commands; &L2 selects Originate mode automatically and &L3 selects Answer mode automatically. To dial or answer, raise DTR; to return to local command state, lower DTR. BOCA PRO16 Reference Guide...

  • Page 58: Smart Leased Line Mode

    ATD or ATA issued Attempt to Establish Connection Connection Carrier lost established On-Line State Escape Sequence or ATO issued - DTR lowered (&D1) - Async only Async mode Off Hook Asynchronous Local Mode Smart Leased-Line Mode (&L1) BOCA PRO16 Reference Guide...

  • Page 59: Calling & Answering Using &L1

    If asynchronous mode is selected, issuing the ATH command will cause the modem to hang up. If asynchronous mode is selected (&L2 or &L3), lowering DTR will cause the modem to hang up. BOCA PRO16 Reference Guide...

  • Page 60: Improving The Reliability Of Leased-Line Connections

    If you are experiencing data errors over leased lines, issue the %L command to lower the transmit level of your modem. You may need to experiment with the levels, but start between %L15 and %L19. The transmit level should be changed on both modems. BOCA PRO16 Reference Guide...

  • Page 61: Dumb Mode Operation

    For example, if you wish to have your modem dial a stored telephone number when the computer asserts (or “raises”) the DTR signal, you must first store the telephone number in the modem and select stored number dialing operation, using the AT commands. BOCA PRO16 Reference Guide...

  • Page 62: Selecting Communications Speeds

    • Type: ATBx&W <E> where “x” is a valid setting of the B command. For example, ATB13&W selects V.32 (9600 bps) mode. The B command is used to set the communications standard used by your modem. BOCA PRO16 Reference Guide...

  • Page 63: Hints For Unix Computers & Multiplexers

    Dialing in Dumb Mode Store a telephone number in the modem and then have the computer raise the DTR signal. PRO16RK modems can dial only by raising the DTR signal to dial a stored telephone number. BOCA PRO16 Reference Guide...

  • Page 64: Using Dtr To Dial

    The connection speed of the modem is indicated by the Mode LEDs. Refer to the table printed in your modem Installation Guide; it shows the meaning of each combination of Mode LEDs. • Raise the DTR signal on your computer BOCA PRO16 Reference Guide...

  • Page 65: Answering Calls In Dumb Mode

    Issue the &M0 command if you wish to use asynchronous communica- tions; issue &M1 if you wish to use synchronous communications. • Type: AT&W <E> The modem set up is saved. • Place Option switch 6 in the On (or Left) position. BOCA PRO16 Reference Guide...

  • Page 66: Manual Answering

    V.25bis mode is selected with Option switches 3 and 4: Description Switch 3 Switch 4 AT command mode Off (Right) V.25bis synchronous (HDLC framing) On (Left) Off(Right) V.25bis sync (BSC character framing) On (Left) On (Left) See diagrams on next two pages. BOCA PRO16 Reference Guide...
  • Page 67 Rack Controller RESET Restarts the modem Allows selection of line speed when in Dumb mode MODE Remote Digital Loopback Test Analog Loopback Test Initiates test functions TEST BUSY Takes modem off-hook BOCA PRO16 Reference Guide...
  • Page 68 4800 bps 2400 bps 1200 bps Fax 14400 bps Fax 9600 bps Fax 7200 bps Fax 4800 bps Fax 2400 bps LED: On = , Off = Flashing: S = Slow, M = Med, F = Fast BOCA PRO16 Reference Guide...

  • Page 69: Ccitt V.25Bis Operations

    RST command or switch the modem off and on), you must issue an ATZ command to select V.25bis command mode; your modem always resets and powers-up in AT command mode, regard- less of the setting of the #M command. BOCA PRO16 Reference Guide...

  • Page 70: Overridden Settings

    Description CRN n Dial phone number n CRS x Dial stored phone number x PRN x:n Save n as stored phone number x Disregard an incoming call Connect to an incoming call Restore factory default parameters BOCA PRO16 Reference Guide...

  • Page 71: Data Formats

    The most basic form of the CRN command is: CRN number where the number is the telephone number you are dialing. For example: • Type: CRN 01234 <E> Your modem will dial 01234 BOCA PRO16 Reference Guide...

  • Page 72: Dial Modifiers

    Most PBXs require you to dial 0 or 9 (in order to obtain an outside line) and wait for a dial tone before dialing the actual phone number. Using dial modifiers, you can successfully dial the phone number 12345 through a PBX using the command: • Type: CRN 0<12345 BOCA PRO16 Reference Guide...
  • Page 73 T and P dial modifiers in the following way: • Type: CRN T0<P12345 <E> The modem tone dials 0 to request an external line, waits for the PBX to obtain the line and then pulse dials 12345. BOCA PRO16 Reference Guide...

  • Page 74: Hanging Up

    ‘DTR Dialing’. The &M command (used to select various methods of DTR dialing in AT command mode) has no effect when the mode is operating in V.25bis command mode. BOCA PRO16 Reference Guide...

  • Page 75: Answering Calls

    V.25bis Command Mode Incoming Call command issued command issued Wait S Register 71 after a DIC Seconds command was issued Connection Established Sync or Async On-Line State DTR Lowered or Carrier Lost Hang Up V.25bis Answer Mode BOCA PRO16 Reference Guide...

  • Page 76: Selecting Speeds

    AT command was issued. Refer to the Command Descriptions section for details of the #Q com- mand. Refer to the chapter titled ‘Getting Started’ for details of how the terminal speed is used by your modem. BOCA PRO16 Reference Guide...

  • Page 77: Line Speeds

    The #N command is used to select the character encoding technique suitable for use with the computer to which your modem is connected. Refer to the chapter titled ‘Command Descriptions’ for details of the #N command. BOCA PRO16 Reference Guide...

  • Page 78: Asynchronous Notes

    (or final bit) will be set to zero for all but the last V.25bis indication, to signify that more V.25bis indications follow. Control characters that do not form part of the frame are treated as a normal characters. This usually results in the modem issuing an INV indication. BOCA PRO16 Reference Guide...

  • Page 79: Command Descriptions

    T Set Dialing to Tone ................... 102 V Verbal Response Codes ................. 103 W Connection Speed Information ............103 X Extended Response Codes ..............104 Zn Restore Configuration Profile ............108 &B Character Length .................. 109 BOCA PRO16 Reference Guide...
  • Page 80 %L Display Line Signal Level ..............142 %Ln Transmit Level (Data Mode) ............143 %M Mode LED Indication ................. 143 %P CONNECT Message Timing .............. 144 %Q Line Signal Quality ................144 %R CTS Override ..................145 BOCA PRO16 Reference Guide...
  • Page 81 T Tone Dialing ..................166 & Hook Flash ..................166 : Wait for Dial Tone ................167 CRS Dial Stored Number ..............167 DIC Disregard Incoming Call ............168 PRN Stored Phone Number .............. 168 RST Reset ....................169 BOCA PRO16 Reference Guide...

  • Page 82: Full Command Descriptions

    You can change the length of the escape sequence guard time by changing the value of S Register 12. Options +++ Return to local command state See Also S Register 2 Escape Sequence Character S Register 12 Escape Sequence Guard Time BOCA PRO16 Reference Guide...

  • Page 83: Remote Access Sequence

    Each letter of the Remote Access password is displayed on the remote computer screen as # character. If no password has been saved, remote access is denied. If the password is successfully typed, the following prompt appear on the remote computer screen: BOCA PRO16 Reference Guide...

  • Page 84: Interactive Command Help

    ENTER to quit from the help pages. You may also search for certain commands or words. S Registers 96 and 97 allow you to change the length and width of each help page to suit your communications software. BOCA PRO16 Reference Guide...

  • Page 85: A/ Repeat Last Command

    This command enables you to answer an incoming call manually. On receiving an incoming call, the modem will send a RING message code to your computer. When you see the ring message: • Type: ATA <E> BOCA PRO16 Reference Guide...

  • Page 86: Bn Select Communication Standard

    V.34 at 28,800 bps B7 Bell 212A at 1200 bps (Reserved for V34bis) B8 V.22bis at 2400 bps (Reserved for V34bis) B9 Auto-Connect (Reserved) B10 V.32 at 4800 bps (Reserved) B11 V.32bis at 7200 bps V.34 at 2400bps BOCA PRO16 Reference Guide...

  • Page 87: D Dial

    For example: ATD (09) 111-1234 The D command must be the final command on a command line, unless you use the ; dial modifier. BOCA PRO16 Reference Guide...

  • Page 88: Dial Modifiers

    MNP 10 at 1200 bps initiate MNP 10 at 4800 bps MNP 10 cellular option last number redial F or ^ disable calling tones hook flash S=n dial stored phone number n W wait for dial tone BOCA PRO16 Reference Guide...

  • Page 89: Pause

    If you are not sure which dialing is used by your phone, lift up the handset and listen. If you hear a continuous dial tone, you probably can use tone dialing. Normally, only older telephone exchanges do not support tone dialing. BOCA PRO16 Reference Guide...

  • Page 90: R Reverse Mode

    30 seconds and then, if the silence is detected, dial the next part of the number. If five seconds of continuous silence is not detected, the modem will hang up and return a message: NO ANSWER BOCA PRO16 Reference Guide...

  • Page 91: M Initiate Mnp 10 At 4800Bps

    Normally MNP 10 power level adjustment is switched on and off with the )M command. F or ^ disable calling tones The F dial modifier (or the dial modifier ^) allows you to switch off calling tones for a data call. BOCA PRO16 Reference Guide...

  • Page 92: L Last Number Redial

    The n indicates which stored number you want to dial. To store numbers, use the &Z command. Refer to your Product Guide for information regarding how many phone numbers your modem can store. For example: To dial the stored number two: • Type ATDS=2 <E> BOCA PRO16 Reference Guide...

  • Page 93: S=N Dial Stored Phone Number N

    • Type: ATDW1110123 <E> See Also &Z command Store Phone Number S Register 6 Wait Time for Dial Tone S Register 7 Wait Time for Carrier S Register 8 Length of Dial Pause S Register 29 Hook Flash Duration BOCA PRO16 Reference Guide...

  • Page 94: E Echo

    The H2 command causes the modem to go off-hook after the current connection terminates. This is used to take a modem out of service without interrupting the current connection. Options ATH0 Hang up ATH1 Go off-hook ATH2 Go off-hook after current connection terminates Range BOCA PRO16 Reference Guide...

  • Page 95: I Identity

    There are four speaker volume levels: Lowest volume level Low volume level Medium level Highest volume level To adjust the volume level: • Type: ATL0 <E> (or type 1,2,3 as appropriate) BOCA PRO16 Reference Guide...

  • Page 96: M Monitor

    Speaker is off whenever the modem is dialing or once a connection is established ATM4 Speaker is on whenever the modem is dialing or answering. The speaker will also be on during retrains or rate changes. Range See Also L Command Speaker Volume Control BOCA PRO16 Reference Guide...

  • Page 97: O Return To On-Line State

    ATO10 Change line speed to 21,600 bps (V.34 or V.FC) ATO11 Change line speed to 24,000 bps (V.34 or V.FC) ATO12 Change line speed to 26,400 bps (V.34 or V.FC) ATO13 Change line speed to 28,800 bps (V.34 or V.FC) Range 0-13 BOCA PRO16 Reference Guide...

  • Page 98: P Set Dialing To Pulse

    Your modem has a variety of messages or response codes which it sends in response to various commands. Examples of these codes are the OK and CONNECT messages. The Q command allows you to switch these messages on and off. BOCA PRO16 Reference Guide...

  • Page 99: R Set Terminal Speed

    26,400 bps, all AT commands must be issued to the modem at 26,400 bps. If you issue commands to your modem at another speed, the modem will not accept the commands. BOCA PRO16 Reference Guide...
  • Page 100 115,200 bps (locked terminal speed - no autobaud) ATR230 230,400 bps (locked terminal speed - no autobaud) Range 0, 1, 2, 3, 4, 7, 9, 12, 14, 16, 19, 21, 24, 26, 28, 38, 57, 76, 96, 115 BOCA PRO16 Reference Guide...

  • Page 101: Sn? Display S Register Value

    The default value of this register is 13. To change this value to 15: • Type: ATS3=15 <E> It is important to alter values only in those S Registers listed for your modem. Placing a value in any other S Register can have unforeseen consequences. BOCA PRO16 Reference Guide...

  • Page 102: T Set Dialing To Tone

    Contact the supplier of your telephone line if you wish to have tone dialing accessible on your line. Options Select tone dialing.. See Also P command Set Dialing to Pulse Dial Modifiers - P Use Pulse Dialing Dial Modifiers - T Use Tone Dialing BOCA PRO16 Reference Guide...

  • Page 103: Verbal Response Codes

    A full description of all Response Codes is contained in Appendix A Range COMMAND MEANING Connection Speed Information The W command allows you to decide whether your modem will report its line speed or terminal speed when it connects to another modem. BOCA PRO16 Reference Guide...

  • Page 104: Extended Response Codes

    5 (CONNECT 1200), and those operating at 2400 bps use response code 10 (CONNECT 2400). You can choose to display only basic re- sponse codes or you can display sets of extended response codes, depending on the capabilities of your modem. BOCA PRO16 Reference Guide...
  • Page 105 Range See Also Q command Quiet (Suppress Response Codes) V command Verbal Response Codes W command Connection Speed Information \V command Error Correction Response Codes %U command V.42 Response Codes S Register 95 Extended Response Codes BOCA PRO16 Reference Guide...
  • Page 106 NO CARRIER ERROR CONNECT 1200 NO DIALTONE BUSY NO ANSWER CONNECT 2400 CONNECT 4800 CONNECT 9600 RINGING CONNECT/REL CONNECT 1200/REL CONNECT 2400/REL CONNECT 4800/REL CONNECT 9600/REL CONNECT 12000/REL CONNECT 14400/REL CONNECT 7200/REL CONNECT 12000 CONNECT 14400 BOCA PRO16 Reference Guide...
  • Page 107 CONNECT 57600 CONNECT 16800/REL CONNECT 19200/REL CONNECT 21600/REL CONNECT 24000/REL CONNECT 26400/REL CONNECT 28800/REL CONNECT 38400/REL CONNECT 57600/REL CONNECT 76800 CONNECT 96000 CONNECT 115200 CONNECT 76800/REL CONNECT 230400 CONNECT 96000/REL CONNECT 115200/REL CONNECT 115200/REL CONNECT 230400/REL BOCA PRO16 Reference Guide...

  • Page 108: Zn Restore Configuration Profile

    ATZ2 Restore active configuration from stored profile 2 ATZ3 Restore active configuration from stored profile 3 See Also &Wn command Write Configuration &F command Restore Factory Defaults &F. command Reinitialize modem &V command View Active Configuration BOCA PRO16 Reference Guide...

  • Page 109: B Character Length

    The modem will only match the speed of your computer when 10-bit or 11-bit characters are selected. Options AT&B0 8 bit characters AT&B1 9 bit characters AT&B2 10 bit characters AT&B3 11 bit characters AT&B4 Use 10 or 11-bit format as detected by autobaud Range BOCA PRO16 Reference Guide...

  • Page 110: C Controlling Data Carrier Detect (Dcd)

    DCD signal always on, pulses low on disconnect AT&C3 DCD asserted during voice session Range See Also S Register 9 Carrier Detect Response Time S Register 10 Lost Carrier/Hang Up Delay DCD Control Dumb Mode Switches Connect Message Timing BOCA PRO16 Reference Guide...

  • Page 111: D Controlling Data Terminal Ready (Dtr)

    S Register 25 determines how long DTR must be low before the modem recognizes it as such. S Register 75 determines how long DTR must be high before the modem recognizes it as such. Range See Also S 25, S75 DTR Detection Times BOCA PRO16 Reference Guide...

  • Page 112: Reinitialize Modem

    Repeat the command. If the message still does not appear, contact your dealer. The Security Database will not be cleared by the &F. if the Security Lock feature is enabled. Options AT&F Total reinitialization See Also #S Command Security Options BOCA PRO16 Reference Guide...

  • Page 113: F Restore Factory Defaults

    Restore Command and S Registers to Factory Defaults AT&F1 Select non-error correction factory defaults AT&F2 Select synchronous mode factory defaults See Also &V command View the Active Configuration Z command Restore Configuration &W command Save Configuration BOCA PRO16 Reference Guide...

  • Page 114: G Guard Tone

    With &H1 selected, the clock will only be present after a connection has been established to another modem. Options AT&H0 Clock always present in synchronous mode AT&H1 Clock only appears after connection Range BOCA PRO16 Reference Guide...

  • Page 115: K Flow Control

    (DC1 and DC3) to control the flow of data. AT&K5 Transparent XON/XOFF flow control The modem and computer encode and decode XON and XOFF characters which are part of the data stream. Transparent XON/XOFF provides reliable operation when using file transfer protocols. BOCA PRO16 Reference Guide...

  • Page 116: L Leased Line

    If you select leased line operation with the &L1 command, you must issue the ATA command to answer a call, and the ATD command to initiate a call. BOCA PRO16 Reference Guide...

  • Page 117: M Synchronous/Asynchronous Mode

    Synchronous transmission is most commonly used in communications involving mainframe computers. Options AT&M0 Asynchronous mode The modem will dial and answer in the asynchronous mode and then enter asynchronous on-line state when a connection is established. BOCA PRO16 Reference Guide...
  • Page 118 As soon as a connection is established, the modem automatically switches to synchronous operation. If DTR is lowered at any time, the modem will hang Range 0-2, 4 See Also &D command Controlling DTR &X command Synchronous Clocks &Z command Stored Phone Number BOCA PRO16 Reference Guide...

  • Page 119: N Abort Connection

    Use the setting specified by your telecommunications regulatory au- thority. UK Modems. Warning. Selecting the &P0 command may invalidate the approval of your modem. Options AT&P0 39/61 make/break ratio (United States) AT&P1 33/67 make/break ratio (United Kingdom, New Zealand, Australia) Range BOCA PRO16 Reference Guide...

  • Page 120: Rrts/Cts Control

    %S overrides the &S command. Options AT&S0 DSR signal will always be asserted AT&S1 DSR signal asserted at the start of handshake AT&S2 DSR signal asserted at end of handshake (before CONNECT message) Range See Also %S command BOCA PRO16 Reference Guide...

  • Page 121: T Self-Test

    Remote Digital Loopback test AT&T7 Remote Digital Loopback with Self-test AT&T8 Local Analog Loopback with Self-test Range 0-1, 3-8 See Also S Register 16 Test in Progress S Register 18 Test Timer \N command Operating Mode BOCA PRO16 Reference Guide...

  • Page 122: View Active Configuration Profile

    S Register values into 1 of 4 stored profiles in the modem’s non-volatile memory. The values contained in the modem’s non-volatile memory specified by the &Y command will be loaded when the modem is next switched on. BOCA PRO16 Reference Guide...

  • Page 123: Transmit Clock

    RS-232 socket) is directly applied to pin 15. This is known as external clocking. AT&X2 Clocks generated by remote system - slave clocking. The receive clock (derived from the incoming carrier signal) is applied to pin 15 of the RS-232 socket. This is known as slave clocking. BOCA PRO16 Reference Guide...

  • Page 124: Yn Select Stored Profile On Power Up

    Stored numbers may contain up to 20 characters, including dial modifiers. Do not include, in the stored phone number: an AT a D (Dial) command an S (Stored number) dial modifier BOCA PRO16 Reference Guide...
  • Page 125 Store the following as stored number four; first pulse dial 0, wait for two seconds to get an outside line and then tone dial 12345 See Also D command Dial (and S dial modifier) &M2 command &M4 command &V command View Active Configuration Profile Range BOCA PRO16 Reference Guide...

  • Page 126: A Universal Remote Access

    Guard time can be adjusted by changing the value in S Register 66 (default 1 second). The remote access character is specified in S Register 67. The default value is 42 — the asterisk (*) character. AT#A2 is only available if your modem supports the security menu (#S). BOCA PRO16 Reference Guide...

  • Page 127: B B0 & B2 1200Bps Originate Mode

    By default, your modem will use V.23 as its 1200 bps connection standard with B0 selected and V.22 with B2. #B1 reverses these settings. Options AT#B0 B0 = V.23 B2 = V.22 AT#B1 B0 = V.22 B2 = V.23 See Also B command Select Communications Standards Range BOCA PRO16 Reference Guide...

  • Page 128: C V.25 Calling Tones

    V.25bis mode is selected. Refer to the section titled ‘Direct Dialing’, which appears in the V.25bis chapter, for details of how direct dialing works. Options AT#D0 Disable direct calling procedures AT#D1 Enable direct calling procedures Range BOCA PRO16 Reference Guide...

  • Page 129: E Encryption

    Department of Defence. Contact your modem supplier for details of making application for a DES equipped modem to be supplied to you. Options AT#E0 DES encryption disabled AT#E1 DES encryption enabled AT#E2 SuperSecure enabled (some models only) Range BOCA PRO16 Reference Guide...

  • Page 130: F Front Panel Test Switches

    Some modems still use the standard PSTN handshake for leased line connections. Use #I1 to connect to these modems in V.22bis leased line mode. Options AT#I0 V.22bis leased line normal AT#I1 Use non-standard PSTN V.22bis over leased line See Also &L command Leased Line Range BOCA PRO16 Reference Guide...

  • Page 131: J V.42 Capability Checking

    AT#J0 command has been issued, regardless of the setting of the \N command. Options AT#J0 Assume V.42 capable AT#J1 Check V.42 compatibility See Also \N command Asynchronous Operating Mode S Register 62 V.42 Detection Phase Timeout Range BOCA PRO16 Reference Guide...

  • Page 132: Kmnp 10 Mode

    MNP 10 Negotiation Speed M dial modifier Initiate MNP 10 at 4800 bps J dial modifier Initiate MNP 10 at 1200 bps K dial modifier Initiate MNP 10 Cellular option -Q command MNP 10 fallback to V.22 option BOCA PRO16 Reference Guide...

  • Page 133: M Command Mode Selection

    V.25bis synchronous operation. This command only takes effect when a synchronous V.25bis operating mode is selected. Before setting the #N command, check which character encoding method is expected by your computer. Options AT#N0 NRZ Character Encoding AT#N1 NRZI Character Encoding Range BOCA PRO16 Reference Guide...

  • Page 134: O Buffer Overflow

    Use last autobaud speed + Other options are the same as the ATR command Range 0, 1, 2, 3, 4, 7, 9, 12, 14, 16, 19, 21, 24, 26, 28, 38, 57, 76, 96, 115, 230 BOCA PRO16 Reference Guide...

  • Page 135: R Enable Remote Control

    You can terminate remote control by issuing an ATO command. Options AT#R Enable remote control mode See Also O command On-Line BOCA PRO16 Reference Guide...

  • Page 136: S Security Menu

    When the modem is in Security Menu mode, the Security Menu will be displayed on your computer screen: You’ll find details on the Security Menu and its use in the Security Section of this guide. Options AT#S Display Security Menu BOCA PRO16 Reference Guide...

  • Page 137: U V.25Bis Character Set

    If you issue an AT command string containing multiple commands, and one has incorrect syntax then none of the commands in the line will be executed. Options AT#V0 Command and S Register verifier off AT#V1 Command and S Register verifier on Range BOCA PRO16 Reference Guide...

  • Page 138: C Compression Control

    V.42bis data compression enabled with fallback to MNP 5 See Also \N command Error correction *V command V.42bis compression table size Example AT%C3\N3 Select V.42bis with auto-reliable error correction AT%C1\N3 Select MNP5 with auto-reliable error correction Range BOCA PRO16 Reference Guide...

  • Page 139: D Set Disconnect Delay

    The %E2 command allows an originating modem to automatically retrain to a lower speed if the line quality deteriorates. This only works between two modems, both supporting the feature. BOCA PRO16 Reference Guide...

  • Page 140: F Front Panel Option Switches

    Refer to the Dumb Mode section for details. Not available in all products. Options AT%F0 Select V.25bis operation AT%F1 Select DTR/DSR operation AT%F2 Switch A puts RACK CONTROLLER card into SL/IP mode Range 0-2 Rack Controller only BOCA PRO16 Reference Guide...

  • Page 141: H Mnp 10 Negotiation Speed

    See Also #K command MNP 10 mode J dial modifier Initiate MNP 10 at 1200 bps K dial modifier MNP 10 Cellular Power level L dial modifier Initiate MNP 10 at 4800 bps Range 0-3, 9 BOCA PRO16 Reference Guide...

  • Page 142: K Cts During Dial & Handshake

    The %L command allows you to display the received signal level. The value returned is a 3-digit number, for example: 009 = -9 dBm 043 = -43 dBm Options AT%L Display received signal level Examples • Type: AT%L <E> The line signal level is displayed. BOCA PRO16 Reference Guide...

  • Page 143: Ln Transmit Level (Data Mode)

    If you have issued the %M1 command: Mode 1 LED will illuminate whenever the line quality is judged to be poor, Mode 2 LED will flash whenever a V.42 or MNP error is detected BOCA PRO16 Reference Guide...

  • Page 144: P Connect Message Timing

    A low value indicates a good quality connection. Values above 10 indicate a marginal line. Values above 30 indicate that you cannot operate at the current speed on this line and you should shift to a lower speed or use MNP10. BOCA PRO16 Reference Guide...

  • Page 145: Rcts Override

    AT%R1 CTS always follows RTS (both in on-line state and local command state) AT%R2 V.25bis mode: CTS on when ready to accept a command See Also &R Sync RTS/CTS control S Register 26 RTS/CTS Delay Range BOCA PRO16 Reference Guide...

  • Page 146: Sdsr Override

    The %T command does not revert to the default setting after an ATZ, AT&F or modem power off is performed. Options AT%T0 DCD always follows the state of the carrier from the remote modem AT%T1 DCD is always high Range BOCA PRO16 Reference Guide...

  • Page 147: U V.42 Response Codes

    V.42 response codes sent when a V.42 error corrected connection is established AT%U2 Append /LAP-M or/REL (2,4,10) or /MNP-5 or /V.42bis or /DES messages to the CONNECT message when established See Also \V command Error Correction Response Codes X command Extended Response Codes Range BOCA PRO16 Reference Guide...

  • Page 148: W Welcome Message

    If used with dial back security the original answering modem will transmit the welcome message after it has dialed back. Options AT%W0 Welcome Message disabled AT%W1 Welcome Message enabled See Also *W command Welcome Message Text Range BOCA PRO16 Reference Guide...

  • Page 149: Amnp Block Size

    This command stores the break length into S43 in units of 20mS. Options AT\B4 Generate a break sequence 0.4 seconds long See Also \K command Break Control S Register 43 Break Sequence Length Range BOCA PRO16 Reference Guide...

  • Page 150: J Auto-Reliable Fallback

    The default break control setting is \K5. The following tables show how the modem will react when it receives a break sequence from either the remote modem or your computer. BOCA PRO16 Reference Guide...
  • Page 151 Immediately send Break Send data in buffer before sending Break \K4,5 During a variable speed connection, if the \B command is issued, the modem will send the break immediately. See Also \B command Generate Break Default Range BOCA PRO16 Reference Guide...

  • Page 152: N Asynchronous Operating Mode

    With constant speed selected the modem could connect with a remote system using V.22 (1200 bps) while communicating with your computer at 9600 bps. Selecting constant speed mode also means the modem will not modify its terminal speed when answering incoming calls. BOCA PRO16 Reference Guide...
  • Page 153 AT\N6 V.42/MNP reliable mode with fallback to MNP reliable mode, disconnect if MNP not supported by remote modem. AT\N7 MNP auto-reliable mode See Also B command Communications Standard &K command Flow Control \J command MNP Fallback #J command V.42 Detect Phase Range BOCA PRO16 Reference Guide...

  • Page 154: Q Extended Flow Control

    AT\Q6 CTS/RTS flow control #2 The modem and computer use the CTS and RTS signals to control data flow. CTS remains low until a connection is established with a remote modem. See Also &K command Flow Control Range BOCA PRO16 Reference Guide...

  • Page 155: S Display Active Configuration

    = 0*CTS follows RTS on-line, CTS high off- line &S DSR Signal = 1*Asserted at start of handshake Page 002 Press Space for next page, BackSpace for previous page, CR to end Options AT\S Display Active Configuration BOCA PRO16 Reference Guide...

  • Page 156: Tn Inactivity Timer(Data Mode)

    The value specified by \T is connected to units of 10 seconds and stored in S30. Options AT\T0 Disable inactivity timer AT\T35 Set inactivity timer to 35 minutes See Also S Register 30 Inactivity Timer (Data Mode) S Register 42 Modem Diagnostic Range 0-42 BOCA PRO16 Reference Guide...

  • Page 157: Error Correction Response Codes

    * These messages are only generated if W0 or W1 is selected (display DTE speed). ** Series 6 only If the ATX0 command has been issued, only the CONNECT/REL will be generated by the modem, regardless of the connection speed, after the \V1 command is issued. BOCA PRO16 Reference Guide...

  • Page 158: Xon/Xoff Pass Through

    When the modem is configured for XON/XOFF flow control, passing through XON/XOFF characters may interfere with the modem’s control of data flow. It is usually best to disable pass through. BOCA PRO16 Reference Guide...

  • Page 159: C Disable V.34 (Use V.fc)

    V.FC connection is desirable. In this case use the *C1 command to force a V.FC connection rather than a V.34 connection. The B command can be used to select specific connection speeds. Options AT*C0 V.34 enabled AT*C1 V.34 disabled See Also B command BOCA PRO16 Reference Guide...

  • Page 160: R V.13 Remote Rts Signalling

    Carrier Detect has been disabled. The modems rely on poor EQM values to confirm disconnect. Options AT*R0 .13 mode off AT*R1 .13 mode on See Also &M command Synchronous Mode BOCA PRO16 Reference Guide...

  • Page 161: S Change Current User Password

    MEANING Maximum V.42bis Dictionary Size The V.42bis dictionary size is normally negotiated during the V.42 handshake. Boca Research PRO16RM modems have enough memory to store 8,192 dictionary entries. This will allow 8:1 compression on some file types. Some modems do not correctly negotiate the dictionary size, in these cases the user should reduce the dictionary size to 2,048 entries (4:1 compression ratio).

  • Page 162: W Welcome Message Text

    If %W1 is enabled the text you have specified will be displayed at the end of the &V display. Examples AT*W You are connected to a Boca Research PRO16RM V.34 modem This will send the following text to the remote modem after connection: You are connected to a Boca Research PRO16RM V.34 modem...

  • Page 163: Yescape Sequence Detection In Sync

    Options AT-Q0 Disable fallback to V.22bis or V.22 AT-Q1 Enable fallback to V.22bis or V.22 with MNP10 Range BOCA PRO16 Reference Guide...

  • Page 164: V.25Bis Commands

    DIC command. For details, refer to the ‘V.25bis Operations’ section of this guide. Options CIC Accept an incoming call after the DIC command has been issued See Also DIC command Disregard Incoming Call S Register 71 Ignore Incoming Call BOCA PRO16 Reference Guide...

  • Page 165: Crn Dial

    This is useful when using a PBX and you need to dial a number to connect to an outside line. For example: If you must dial 0 to connect to an outside line before dialing (09) 111-1234 • Type: CRN0<091111234 <E> BOCA PRO16 Reference Guide...

  • Page 166: P Pulse Dialing

    Hook flashes are commonly used with PBXs to transfer calls. For example: To dial 0, hook flash and then dial 12345: • Type: CRN0&12345 <E> UK Modems. Use of the hook flash is not allowed in the United Kingdom. BOCA PRO16 Reference Guide...

  • Page 167: Wait For Dial Tone

    Your modem allows you to store phone numbers in non-volatile memory. The basic form of the CRS command is: CRS n where n is the stored phone number you wish to dial. For example: To dial stored phone number one: • Type: CRS 1 <E> BOCA PRO16 Reference Guide...

  • Page 168: Dic Disregard Incoming Call

    Stored phone numbers may contain up to 20 characters, including dial modifiers. BOCA PRO16 Reference Guide...

  • Page 169: Rst Reset

    AT command mode, regardless of the setting of the #M command. Options Reset the modem and restore the saved configuration profile See Also &F command Restore Factory Defaults &F. command Reinitialize modem &W command Write Configuration BOCA PRO16 Reference Guide...

  • Page 170: S Registers

    Once you switch the modem off, these changes will be lost and the next time the modem is switched on, the factory-set default values will be in effect. BOCA PRO16 Reference Guide...
  • Page 171 AT command, will be stored in RAM and will take precedence until you switch the modem off. To use the current S Register settings with the Write Configuration command (&Wn): • Type: AT&Wn <E> (where n = the profile number you wish to use 0-3) BOCA PRO16 Reference Guide...
  • Page 172 &F command with the Write Configu- ration (&Wn) command. To reset and store all settings to the factory default: • Type: AT&F. BOCA PRO16 Reference Guide...

  • Page 173: Alphabetical S Register Listing

    S 82 — Failsafe Flow Control Overrun ........... 197 S 95 — Extended Response Codes ............198 S 96 — Help Page Width ................199 S 97 — Help Page Length ................. 199 S 105 —Voice 'Dead Man' Timer .............. 200 BOCA PRO16 Reference Guide...

  • Page 174: Full S Register Details

    S Register 1 is incremented each time a ring is detected. It will be cleared if no ring occurs within 8 seconds of the last ring. Default 0-255 Range This is a READ ONLY register. BOCA PRO16 Reference Guide...

  • Page 175: S 2 - Escape Sequence Character

    S Register 3 contains the ASCII value of the character recognized by the modem as the Carriage Return character in local command state. Default Example ATS3-127 Recognize the DEL character as the carriage return Range 0-127 BOCA PRO16 Reference Guide...

  • Page 176: S 4 - Line Feed Character

    S Register 5 contains the ASCII value of the character recognized by the modem as the Backspace character in local command state. The preferred values for this register are ASCII codes 0 to 32 or 127. Default Example ATS5=127 Recognize the DEL character as the backspace 0-127 Range BOCA PRO16 Reference Guide...

  • Page 177: S 6 - Dial Tone Wait Time

    S Register 6 will be ignored, unless the X2, X4, or X5 commands have been issued. Examples ATS6 =5 Wait five seconds for a dial tone before dialing. Default See Also D command Dial W dial modifier Wait X command Extended Response Codes Range BOCA PRO16 Reference Guide...

  • Page 178: S 7 - Wait For Carrier

    S Register 7 must be set to 20 before issuing the W dial modifier. Any other change to this register will invalidate the approval of your modem. Examples ATS7=20 Wait 20 seconds for a connection Default Range 1-60 BOCA PRO16 Reference Guide...

  • Page 179: S 8 - Pause Dial Modifier Delay

    V.21, Bell 103 and V.23 only. Examples ATS9=9 Wait 0.9 seconds after detecting a carrier before connecting to the phone line (asserting DCD). Default See Also &C command Controlling Data Carrier Detect Range 1-255 BOCA PRO16 Reference Guide...

  • Page 180: S 10 - Lost Carrier/Hang Up Delay

    The value in this register does not affect pulse dialing. UK Modems. Changing S Register 11 from its default value may invalidate the approval of your modem. Examples ATS11=120 Space tones at 0.120 second intervals Default Range 70-254 BOCA PRO16 Reference Guide...

  • Page 181: S 12 - Escape Sequence Guard Time

    S Register 12, the modem will not recognize the escape sequence. Examples ATS12=100 Maintain silence on the line for 2 seconds before and after entering the escape sequence Default See Also S Register Escape Sequence Character Range 3-255 BOCA PRO16 Reference Guide...

  • Page 182: S 16 - Test In Progress (Read Only)

    Placing a value of 0 in S Register 18 disables the Test Timer, forcing you to use an AT&T0 command to terminate tests. Examples ATS18=30 Terminate test after 30 seconds Default See Also &T command Self Test S Register 16 Test in Progress (read only) Range 0-255 BOCA PRO16 Reference Guide...

  • Page 183: S 25 - Dtr Loss Detection

    Register 26 before asserting the CTS (Clear To Send) signal, when &R0 is selected. Values in this register are in tenths of a second Examples ATS26=15 Wait 1.5 seconds after RTS has been asserted before asserting CTS. Default See Also &R RTS/CTS Control CTS Control Range 0-255 BOCA PRO16 Reference Guide...

  • Page 184: S 27 - Delay Before Dial

    0.5 seconds. The value held in S Register 29 is in hundredths of a second. Examples ATS29=30 Set the hook flash duration to 0.3 seconds Default See Also ! Dial Modifier Hook Flash Range 10-100 BOCA PRO16 Reference Guide...

  • Page 185: S 30 - Inactivity Timer

    If S30 is set while in voice mode, the value is redirected to S105, the voice dead-man timer. Examples ATS30=60 Set the dead-man timer to 60 seconds ATS30=0 Disable the dead-man timer Default See Also ATS105 Voice ‘Dead Man’ Timer Range 0-255 BOCA PRO16 Reference Guide...

  • Page 186: S 33 - Eqm Threshold Value

    The value in this register should only be altered by people with previous EQM experience. Changing the EQM value will affect the data throughput and reliability of connections. Default Example ATS33=5 Set EQM change rate threshold to 5. Range 0-255 BOCA PRO16 Reference Guide...

  • Page 187: S 38 - Disconnect Delay

    The length of the disconnect delay may be selected with the %D command. Examples ATS38=30 Wait 30 seconds before hanging up. Default See Also %D command Set Disconnect Delay Range 0-255 BOCA PRO16 Reference Guide...

  • Page 188: S 42 - Modem Disconnect Reason

    DES encryption could not achieve an error corrected connection MNP10 rate fallback failed CTS stuck (continuous retrains or data pump failure) Incoming call: Access denied V.42bis received an invalid token Abnormal exit from on line state BOCA PRO16 Reference Guide...

  • Page 189: S 43 - Break Sequence Length

    In variable speed mode, the Y command controls the length of breaks generated by the modem. Examples ATS43=10 Generate a break of 0.2 seconds Default See Also Y command Long Space Disconnect \B command Generate Break Range 1-255 BOCA PRO16 Reference Guide...

  • Page 190: S 45 - V.22Bis Eqm Threshold Value

    Changing the value of this S Register may cause unreliable operation when attempting V.42 connections. Examples ATS62=100 Set the timer to one second Default 75 (0.75 seconds) See Also #J command V.42 compatibility Range 0-255 BOCA PRO16 Reference Guide...

  • Page 191: S 66 - Remote Access Guard Time

    The guard time is in units of 100 milliseconds (1/10th of a second). Example ATS66=20 Set the remote access guard time to two seconds. Default See Also S Register 67 Remote Access Character #A command Universal Remote Access **** command Remote Access Sequence Range 1-255 BOCA PRO16 Reference Guide...

  • Page 192: S 67 - Remote Access Character

    ‘AT’ and when you press the ENTER key. A value of 0 (zero) disables this feature. Examples ATS69=120 Allow 120 seconds to type a command to the modem before timing out. ATS69=0 Never time-out a command Default Range 0-255 BOCA PRO16 Reference Guide...

  • Page 193: S 71 - Ignore Incoming Call

    S Register 74, refer to the description of S Register 42. This is a read only S Register. Examples ATS74? Read the disconnect reason for the previous call See Also S Register 42 Modem Disconnect Reason BOCA PRO16 Reference Guide...

  • Page 194: S 76,77 - Dsvd Ringing Signal Parameters

    SVD data connection and the remote user picks up his handset to initiate conversation. Examples ATS77=8 Change ringing signal pitch to 800 Hz. ATS76=40 Make ringing signal softer Default S76=80 S77=10 (Units =100Hz therefore default is 1000Hz) See Also -SSE command Digital SVD control Range 0-255 BOCA PRO16 Reference Guide...

  • Page 195: S 80 - Flow Control High Water Mark

    Refer to the chapter titled ‘Getting Started’ for details of flow control. Examples ATS80=12 Use flow control when the buffer becomes 60% full. Default 15 (75% of the buffer) See Also S Register 81 Flow Control Low Water Mark &K command Flow Control Range 1-19 BOCA PRO16 Reference Guide...

  • Page 196: S 81 - Flow Control Low Water Mark

    Refer to the chapter titled ‘Getting Started’ for details of flow control. Examples ATS81=2 Use flow control when the buffer becomes 10% full Defaul t3 (15% of the buffer) See Also S Register 80 Flow Control High Water Mark &K command Flow Control Range 1-19 BOCA PRO16 Reference Guide...

  • Page 197: S 82 - Failsafe Flow Control Overrun

    ATS82=20 Accept 20 characters after CTS is dropped before sending XOFF Default See Also S Register 80 Flow Control High Water Mark S Register 81 Flow Control Low Water Mark &K command Flow Control Range 1-255 BOCA PRO16 Reference Guide...

  • Page 198: S 95 - Extended Response Codes

    CARRIER message indicates the line speed Do not display PROTOCOL message PROTOCOL message indicates the type of error correction being used Reserved Do not display COMPRESSION message COMPRESSION message indicates the type of data compression being used Reserved BOCA PRO16 Reference Guide...

  • Page 199: S 96 - Help

    You may change the length of each page to suit your computer. Examples ATS97=10 Set the Help page length to 10 lines Default See Also S Register 96 Help Page Width &V command View Active Configuration Profile Interactive Help Range 1-255 BOCA PRO16 Reference Guide...

  • Page 200: S 105 -Voice 'Dead Man' Timer

    This register may also be accessed by writing to S30 when in voice mode. Examples ATS105=60 Set the dead-man timer to 60 seconds ATS105=60 Disable the dead-man timer Default See Also ATS30 'Dead Man' Timer (voice mode) Range 0-255 BOCA PRO16 Reference Guide...

  • Page 201: Troubleshooting

    These are sample problems and solutions only. Not all modems support the same commands or have the same features. Thus, the solutions here may not be applicable to your modem. Consult your dealer if a problem persists after you have tried the solutions here. BOCA PRO16 Reference Guide...
  • Page 202 • If you still have problems after adjusting the appropriate settings, exit from your communications program, switch the modem off and on, and then re-enter the communications program to reinitialize the modem. Try typing: ATI <E> The modem should respond with the Product Identity number. BOCA PRO16 Reference Guide...
  • Page 203 • If you are in Variable Speed mode, when the CONNECT message is sent, the terminal speed of the modem is changed to match the line speed. You will have to change this manually. BOCA PRO16 Reference Guide...
  • Page 204 • Neither the remote computer nor the local computer are using linefeed characters. Turn your communication software’s linefeed on. Problem: Incoming characters disappear off the right side of the screen. Solution: • The remote modem expects your software to provide wraparound. Turn your communications software’s wraparound on. BOCA PRO16 Reference Guide...

  • Page 205: Troubleshooting Flow Chart

    Troubleshooting Troubleshooting Flow Chart The chart on the next two pages show some common problems users face. Work through the chart. You may be able to solve your problem yourself. BOCA PRO16 Reference Guide...
  • Page 206 Does the modem Check the connection LEDs flash when you respond? of your modem cable press a key? Go To Next Page Carry out a factory reset of your modem. AT&F or by front panel or power up BOCA PRO16 Reference Guide...

  • Page 207: Testing Your Modem

    • all the connections in between Refer to the Testing Section of this Guide, as well as the description of the &T command in the Command Description section of this Guide. BOCA PRO16 Reference Guide...

  • Page 208: Sample Setups

    Displays connection details. This provides on-screen information about the type of error correction, data compression and other parameters negotiated between the modems. If your communications software is dialing the remote modem, issue the command \V0 instead of \V8. BOCA PRO16 Reference Guide...
  • Page 209 Displays connection details. This provides on-screen information about the type of error correction, data compression and other parameters negotiated between the modems. If your communications software is dialing the remote modem, issue the command \V0 instead of \V8. BOCA PRO16 Reference Guide...

  • Page 210: Using Your Modem With Bbs Software

    RTS/CTS flow control selected. This ensures data is not lost between your modem and computer. Selects extended response codes. Will report to you the speed of the connection your modem establishes with the remote modem. Disables MNP response codes and connection details. BOCA PRO16 Reference Guide...
  • Page 211 Displays connection details. This provides on-screen information about the type of error correction, data compression and other parameters negotiated between the modems. If your communications software is dialing the remote modem, issue the command \V0 instead of \V8. BOCA PRO16 Reference Guide...
  • Page 212 Selects V.42 Reliable mode. If the modem cannot connect using V.42 error correction it will attempt to reconnect. A special phone cable is required to connect your modem to a leased line socket. Leased line cables are available from your dealer. BOCA PRO16 Reference Guide...

  • Page 213: Synchronous Mode

    Disables echo from the modem to the computer. Disables responses from the modem to the computer. For external clocking (clocks generated by the computer or terminal) select the &X1 for the transmit modem and &X2 for the receive modem. BOCA PRO16 Reference Guide...

  • Page 214: Appendices

    Connection at 57,600 bps CONNECT 16800/REL Error corrected connection at 16,800 bps CONNECT 19200/REL Error corrected connection at 19,200 bps CONNECT 21600/REL Error corrected connection at 21,600 bps CONNECT 24000/REL Error corrected connection at 24,000 bps BOCA PRO16 Reference Guide...

  • Page 215: V.25Bis Indications

    CONNECT 115200/REL Error corrected connection at 115,200 bps CONNECT 230,400/REL Error corrected connection at 230,400 bps SECURITY LOCKOUT Function has been prevented by Security Options selected V.25bis Indications CFI AB Call failure; abort CFI ET Call failure; engaged Connection Incoming call Invalid Valid BOCA PRO16 Reference Guide...

  • Page 216: Appendix B

    Appendices Appendix B ASCII TABLE ASCII DEC CTRL ASCII DEC ASCII DEC ‘ < > SPACE 32 " & BOCA PRO16 Reference Guide...

  • Page 217: Appendix C

    In synchronous mode, the DSR will only be asserted when the modem is off hook. The &S command lets you control the state of the DSR signal. Signal Ground (SG) - Pin 7 Ground for all signals on the RS-232 socket. BOCA PRO16 Reference Guide...
  • Page 218 This signal is only used when a synchronous mode is asserted. The modem may be configured to use this signal for data transmission timing. The &X1 command allows external clocking to be used during synchronous connections. BOCA PRO16 Reference Guide...
  • Page 219 Clear to Send CB CTS HSKi Data Set Ready CC DSR N.A. Reference signal ground 102 AB GND Data Carrier Detect CF DCD N.A. Data Terminal Ready CD DTR HSKo Ring Indicator CE RI N.A. Standard RS-232 Examples BOCA PRO16 Reference Guide...

  • Page 220: Glossary

    A modem capability that allows automatic pick-up — by the modem — when the phone answers. Auto dial The ability to make a connection with another modem automatically. (To dial a number automatically. usually using a stored number.) BOCA PRO16 Reference Guide...
  • Page 221 The word stands for Binary digIT. Bit rate The speed at which bits are transmitted, usually expressed as bits per second (BPS). Block Group of characters treated as a unit for the purpose of data transmission. BOCA PRO16 Reference Guide...
  • Page 222 CCITT X25 International standard defining the protocol used in accessing a packet switching network. Channel An electronic communications path. A voice grade channel generally ranges from 300 to 4000 Hz. BOCA PRO16 Reference Guide...
  • Page 223 Also a symbol you can create by pressing one of your computer's keys while holding down the Control key. These symbols are not usually printed, and are generally used to control screen formatting and cursor positioning. BOCA PRO16 Reference Guide...
  • Page 224 Terminal Equipment (DTE) and the telephone network. With RS- 232 connections, the modem is generally the DCE device while the computer or terminal connected to a modem is generally the DTE device. See also Data Terminal Equipment. BOCA PRO16 Reference Guide...
  • Page 225 Demodulate To recover the information being transmitted by a modulated signal. For example, a conventional radio receiver demodulates an incoming broadcast signal top convert it into sound emitted by a speaker. See also Modulate and Modem. BOCA PRO16 Reference Guide...
  • Page 226 Terminals that do not contain an intelligent microprocessor and usually send data one character at a time. Duplex Transmission Independent, simultaneous, two-way transmission. EBCDIC Extended Binary Coded Decimal Interchange Code. An eight bit code used primarily by IBM equipment. BOCA PRO16 Reference Guide...
  • Page 227 Forward Error Correction (FEC) Technique of transmitting additional information with the original data so that if small errors are detected the correct information can be recreated by the receiving end without requiring a re-transmission. Frame See Block. BOCA PRO16 Reference Guide...
  • Page 228 Hardware Handshaking The use of special RS-232 signals to halt or commence the flow of data between two computers or terminals, between computers and modems or between facsimile machines. See also Software Handshaking, RTS and CTS. BOCA PRO16 Reference Guide...
  • Page 229 See also Password. Input Information transferred into a computer from some external source, such as the keyboard, a disk drive, a modem or a scanner. Also, the act or process of transferring such information. BOCA PRO16 Reference Guide...
  • Page 230 A telephone line permanently connecting two or more locations. It does not have any switching equipment associated with it and runs between specific, fixed locations. Also known as a private line. Acronym for light emitting diode. See Light Emitting Diode. BOCA PRO16 Reference Guide...
  • Page 231 Modem Eliminator A usually passive device which takes the place of a modem between a local terminal which requires a modem and a computer. BOCA PRO16 Reference Guide...
  • Page 232 See also Even Parity and Parity. Off line Describes equipment and activities connected to, but not currently accessible by, a computer. On line Describes activities and equipment currently connected to an accessible by a computer. BOCA PRO16 Reference Guide...
  • Page 233 Phase Modulation (PM) A method of modulating the carrier wave based on the data by varying the phase relationship of the signal elements. Point-to-point A connection between two points as opposed to a multipoint or multidrop line. BOCA PRO16 Reference Guide...
  • Page 234 Quadrature Amplitude Modulation (QAM) A modulation technique which employs both amplitude and phase modulation to encode multiple bits in a single element. Random Access Memory. Received Line Signal Detector See Carrier Detect. BOCA PRO16 Reference Guide...
  • Page 235 If the software is useful to them, they are encouraged to send a small fee to the program's author, usually for a printed manual, registration and any software updates that are available. See also Public Domain Software. BOCA PRO16 Reference Guide...
  • Page 236 Start Of Text control character used in synchronous transmission which precedes the text portion of the data block. Synchronous Idle control character transmitted when the line is idle in synchronous transmissions. BOCA PRO16 Reference Guide...
  • Page 237 Text The message portion of a data block in synchronous data transmissions. Turnaround Time The time required to reverse the direction of transmission when operating in half duplex mode. BOCA PRO16 Reference Guide...
  • Page 238 A communications protocol developed in the late '70s by Ward Christensen to perform error checking on data being sent between two computers. XON/XOFF Special control characters used to control the flow of data between your computer and a remote system. See Software Handshaking. BOCA PRO16 Reference Guide...
  • Page 239 Glossary BOCA PRO16 Reference Guide...
  • Page 240 BOCA PRO16 Reference Guide...
  • Page 241 &B 112 M 91 &C 110 P 89 &D 111 R 90 &F 113 S=n 92 &F. 112 T 89 &H 114 W 93 &K 115 DIC 168 &L 116 E 94 &M 117 H 94 BOCA PRO16 Reference Guide...
  • Page 242 Modem Response Codes 214 &T5 23 Multiple Commands 18 Dial Modifiers 13, 88-93 Dialing 12 Dialing in Dumb Mode 63 Dialing with a Telephone Handset Option Switches (Dumb Mode) 66 (Dumb Mode) 63 Dumb Mode Operation 61-68 BOCA PRO16 Reference Guide...
  • Page 243 General Notes on Data 71 Ignore Incoming Call 193 Security 51 74 Disconnect Reason for Previous Minimum Password Length 48 Call 193 Outdial Disable Option 50 76,77 194 Password Expiration Option 47 8 Pause Dial Modifier Delay 179 BOCA PRO16 Reference Guide...
  • Page 244 202 Some Problems and Solutions 201 Testing Your Modem 207 Troubleshooting Flow Chart 205 unreadable characters 203 Unix Computers and Multiplexers (Dumb Mode) 63 V.25bis Commands 70, 164-169 V.25bis Indications 71 BOCA PRO16 Reference Guide...
  • Page 245 Copyright ©1996 Boca Research, Inc. All rights reserved. No reproduction of this document in any form is allowed without permission in writing from Boca Research, Inc. Boca Research is not liable for any damage resulting from technical or editorial errors or omissions contained in this document. The information in this manual is subject to change without notice.
  • Page 246 BOCA PRO16 Reference Guide...
  • Page 247 BOCA PRO16 Reference Guide...
  • Page 248 Part No. 9398 Rev. 1.0...

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