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Ositech comm Trumpcard Data/Fax Modem User's Manual And Reference

Trumpcard data/fax modem
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Trumpcard Data/Fax Modem
User's Guide and Reference

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Summary of Contents for Ositech comm Trumpcard Data/Fax Modem

  • Page 1 Trumpcard Data/Fax Modem User’s Guide and Reference...

  • Page 2: How To Contact Us

    Copyright Information in this document is subject to change without notice. Copyright 1996-1997 by Ositech Communications Inc., Guelph, Ontario, Canada. Ositech Communications Inc. shall not be liable for technical or editorial errors or omissions contained herein; nor for incidental or consequential damages resulting from the furnishing, performance, or use of this material.
  • Page 3 The Trumpcard Modem is a PCMCIA Type II Modem with no external controls or indicators. To operate the Modem, you require a communications software package. ‘PCMCIA Card’ and ‘PC Card’ are used interchangeably throughout this manual. Both terms refer to the Ositech Trumpcard Data/Fax Modem PC Card.

  • Page 4: Operating Conditions

    FCC Notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
  • Page 5 U.S. Regulations Governing the Use of Modems This equipment complies with Part 68 of the FCC rules. Located on the Modem is a label that contains, among other information, the FCC Registration Number and Ringer Equivalent Number (REN) for this equipment.
  • Page 6 Before installing the equipment, ensure that it is permissible to be connected to the facilities of the local telecommunications company. The equipment must also 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 7 This product contains inactivated SPECTRUM CONNECTED cellular data communication technology, which requires a use license from Spectrum Information Technologies, Inc. No such license is provided with this product and activation without a use license is prohibited. This product contains SPECTRUM CONNECTED cellular data communication technology, which can be activated for data communication over a cellular network when a license is obtained from...

  • Page 8: Table Of Contents

    Contents Section One Introduction Features ... 1-2 Data Mode ... 1-2 Facsimile Mode ... 1-3 Cellular Mode ... 1-3 Unique Features ... 1-4 Industry Standards ... 1-5 Section Two Hardware Installation Preparing for Installation ... 2-1 Installing the Trumpcard Modem ... 2-2 Connecting to the Telephone Network with a Direct Cable Connection ...
  • Page 9 Section Four Modem Command Reference Modem Command Guidelines ... 4-2 Modem Command Summary ... 4-4 Modem Command Descriptions ... 4-6 Modem S Registers ... 4-34 Default Register Settings ... 4-34 Modem Register Summary ... 4-35 Register Descriptions ... 4-37 Facsimile Commands ... 4-45 Class 1 Commands ...

  • Page 11: Section One

    Section One Introduction Congratulations on your choice of an Ositech Trumpcard Data/Fax Modem! We believe you will find it a superior quality product that will meet or exceed your facsimile and data communication needs. The Trumpcard Modem can be used with most standard communications and facsimile packages.

  • Page 12: Features

    Section One Features Data Mode The Trumpcard Modem fully supports the following industry and ITU-T (formerly CCITT) standards. • V.FC, ITU-T: V.34 33.6+28.8, V.32bis, V.32, V.22 bis, V.22, V.23, V.21, and Bell 103/212A operation • Data rate adaptation to 230400, 115200, 57600, 38400, 28800, 26400, 24000, 21600, 19200, 14400, 12000, 9600, 7200, 4800, 2400, 1200, and 300 bps •...

  • Page 13: Facsimile Mode

    Facsimile Mode The Trumpcard facsimile supports Class 1 and Class 2 AT fax commands for facsimile communications. To use the facsimile, you must have a facsimile communications software package. • Group 3 facsimile send/receive speeds of 14400, 9600, 7200, 4800, and 2400 bps •...

  • Page 14: Unique Features

    Section One Unique Features The Trumpcard Data/Fax Modem has a number of unique features, designed to integrate with today’s portable and laptop technology, and computer user’s needs. • Power conservation modes (including sleep mode) • Automatic wake-up on incoming call •...

  • Page 15: Industry Standards

    Industry Standards V.21 V.21 refers to a standard set by ITU-T for 300 bps Modem communications. North American manufactured modems usually follow the Bell 103 standard. V.22 V.22 refers to the standard set by ITU-T for 1200 bps Modem communications. The V.22 standard is compatible with the Bell 212A standard used in North America.
  • Page 16 Section One V.42 V.42 refers to the standard set by ITU-T for error control protocol. The V.42 standard also supports the MNP error correction protocol standard. V.42bis V.42 bis refers to the standard set by ITU-T for data compression. Data compression can only be used in conjunction with error correction.

  • Page 17: Section Two

    Section Two Hardware Installation Follow the instructions to unpack and install the Trumpcard Modem on your computer. Preparing for Installation To install the Trumpcard Modem, you require the accompanying diskettes and the following items: • A computer equipped with a PCMCIA Release 2.x, Type II PC Card slot.

  • Page 18: Installing The Trumpcard Modem

    Section Two Installing the Trumpcard Modem The Trumpcard Modem can be inserted into a computer whether the power is ON or OFF. Follow these steps: • Orient the Trumpcard Modem so that the 68-pin connector is next to the PCMCIA slot of the computer. •...

  • Page 19: Connecting To The Telephone Network With A Direct Cable Connection

    Connecting to the Telephone Network with a Direct Cable Connection The Trumpcard Modem may be directly connected to either a standard land based telephone line or to a cellular telephone using the cellular option kit. For cellular installation, refer to the installation instructions accompanying the cellular option kit.
  • Page 20 Section Two Connecting to a Telephone Network through the Line Interface Module The Trumpcard Modem may be connected to a variety of telephone networks using the Line Interface Module, and the appropriate Adapter Cable. Contact Ositech for the latest list of countries supported. To connect the Trumpcard Modem to your telephone service using the Line Interface Module, follow these steps: •...

  • Page 21: Section Three

    Section Three Basic Modem Operation This section provides basic instructions for getting started with your Modem. • Before You Begin • Operating the Trumpcard Modem • Using AT Commands • Making an Outgoing Call • Re-Dialling the Last Number • Storing a Number •...

  • Page 22: Before You Begin

    Section Four Before You Begin Before you begin using the Modem, you should configure your communications software to work with the Trumpcard. For specific configuration instructions, refer to the documentation that came with your communications software. You will likely require the following information: •...

  • Page 23: Operating The Trumpcard

    Operating the Trumpcard Using AT Commands In order to communicate with the Modem, the Modem must be in command mode. In addition, you must have your communications software operating and communicating interactively with the Modem. The Trumpcard will automatically be in command mode after you turn on your computer.

  • Page 24: Making An Outgoing Call

    Section Four Making an Outgoing Call To make an outgoing call manually, enter: ATD 234 3456 [ENTER] Where 234 3456 is the telephone number of the remote Modem. Spaces on the command line are ignored by the Modem. There are a number of options that you can add to the dial command. Some of the more common are listed here.

  • Page 25: Re-Dialling The Last Number

    Re-Dialling the Last Number To re-dial the last number you called, enter: ATDL [ENTER] Storing a Number If there are some numbers that you call regularly, you may want to store them so that you do not have to enter the whole number every time you call.
  • Page 26 Section Four Short Long Form Form CONNECT 9600 CONNECT 7200 CONNECT 12000 CONNECT 14400 CONNECT 19200 CONNECT 38400 CONNECT 57600 CONNECT 115200 CONNECT 75TX/1200RX CONNECT 1200TX/75RX DATA CARRIER 300 CARRIER 1200/75 CARRIER 75/1200 CARRIER 1200 CARRIER 2400 CARRIER 4800 CARRIER 7200 CARRIER 9600 CARRIER 12000 CARRIER 14400...

  • Page 27: Ending Your Connection

    Short Long Form Form CONNECT 24000 CONNECT 26400 CONNECT 28800 COMPRESSION CLASS 5 MNP data compression COMPRESSION V.42BIS COMPRESSION NONE PROTOCOL NONE PROTOCOL: LAP-M PROTOCOL: ALT PROTOCOL: ALT - CELLULAR *Only applicable to Trumpcard 28800 version Ending Your Connection To end your connection, log off the remote system (if applicable), enter the escape sequence (+++), and issue the ATH command.

  • Page 28: Receiving An Incoming Call

    Section Four Receiving an Incoming Call Your communications software may be able to accept incoming calls automatically or semiautomatically. Refer to your communications software documentation for information. If your communications software can not automatically accept incoming calls, start your communications software and follow these instructions to receive a call.

  • Page 29: Modem Configurations For Cellular Operation

    Modem Configurations for Cellular Operation The Trumpcard’s performance will be improved by modifying the standard (factory default) configuration. For reliable communications, it is also recommended that the Modem to which you are connecting also be MNP10 compatible. Using a MNP10 link will allow negotiation of the Modem link speeds based on current line conditions.
  • Page 30 Section Four Cellular Phone Configuration The placement of the cellular phone and antenna is critical to the success of the communications session. The antenna placement should be adjusted until the maximum signal strength is observed on the cellular phone signal indicator. Under some circumstances a special high gain antenna may improve performance.
  • Page 31 The initialization string sent to the Trumpcard for cellular connections may not result in the optimum connection when used for landline connections. If possible, set the communications software to send the desired initialization string based on the type of connection being used. Refer to the section Receiving an Incoming Call for details on how to command the Modem to receive incoming calls.
  • Page 32 Section Four 4 - 12 Trumpcard 14400/28800 Modem...

  • Page 33: Section Four

    Also included in this section is a list of the S registers and their functions. At the end of the section is a list of the facsimile commands supported by the Trumpcard data/fax modem. These commands appear for reference only — you cannot operate the facsimile manually.

  • Page 34: Modem Command Guidelines

    Section Four Modem Command Guidelines Each of the following modem command descriptions has a list of possible parameters with their default values. The modem loads the default values at initialization (when you turn the power on or you issue the ATZ command). If you exclude a mandatory parameter, the modem assumes a zero value.
  • Page 35 Modem Command Reference If you enter a parameter for the AT\ or AT% commands that is out of range, the upper limit is stored and no ERROR message is reported. Following the modem command description assume OK and ERROR as valid responses for almost all of the commands.

  • Page 36: Modem Command Summary

    Section Four Modem Command Summary Command Title Re-execute Command Answer Set ITU-T or Bell Mode Dial Command Echo Select Line Modulation (14400) Select Line Modulation (28800) Switch-Hook Control Identification Speaker Volume Speaker Control Automode Detection Return To The On-Line State Set Pulse Dial As Default Result Code Display Reading/Writing S Registers...
  • Page 37 Command Title &Mn Communication Mode &Pn Dial Pulse Ratio &Qn Communication Mode &Rn RTS/CTS Option &Sn DSR Option &Tn Test And Diagnostic &V View Configuration and User Profiles &Wn Store User Profile &Yn Designate Default User Profile &Zn=x Store Phone Number Transmit Break Modem-to-Modem Flow Control Break Control...

  • Page 38: Modem Command Descriptions

    Section Four Modem Command Descriptions A/ — Re-execute Parameters Default Re-executes the most recent AT command string. The principle application of this command is to place another call (e.g., Dial command) that failed, to connect due to a busy line, no answer, or a wrong number. This command must appear alone on a command line and must be terminated by the "/"...
  • Page 39 Bn — Set ITU-T or Bell Mode Parameters Default Selects between ITU-T and Bell modes for a 1200 bps connection. Examples ATB0 ATB1 Dn — Dial Parameters Default This must be the last command on a command line. ATD causes the modem to go off-hook, dial according to the parameters entered, and attempt to establish a connection.
  • Page 40 Section Four @ Causes the modem to listen for 5 seconds of silence. If a 5 second silence has not been detected within the period specified in S7 (default = 30 seconds), the modem disconnects and returns the NO ANSWER result code. If it detects a busy signal, it returns a BUSY result code.

  • Page 41: Result Codes

    Result Codes NO DIAL TONE BUSY NO ANSWER CONNECT XXXX NO CARRIER En — Command Echo Parameters Default Controls the echo of characters received by the modem while the modem is in the command mode. If both the modem and the software have echo on, double characters will appear.
  • Page 42 Section Four ATF3 ATF4 ATF5 ATF6 ATF7 ATF8 ATF9 ATF10 ATF13 ATF14 ATF15 ATF16 ATF17 ATF18 ATF19 +Ms Select Line Modulation (28800 only) Parameters Default This extended-format command selects the modulation, optionally enables or disables automode, and optionally specifies the lowest and highest connection rates using one to four sub-parameters.
  • Page 43 V.32 V.32bis V.34 Bell 103 Bell 212 2. <automode> is an optional numeric value which enables or disables automatic modulation negotiation using V.8 or V.32bis annex a. The options are: <automode> 3. <min_rate> is an optional number which specifies the lowest rate at which the modem may establish a connection.
  • Page 44 Section Four In — Identification Parameters Default Returns the product code, returns the checksum of the firmware ROM, or computes the checksum of the firmware ROM and reports its error status. The product code contains 3 digits. The checksum result consists of three ASCII numeric characters followed by a carriage return and a line feed.
  • Page 45 Examples ATM0 ATM1 ATM2 ATM3 Nn — Automode Detection Parameters Default This command enables or disables automode detection Examples ATN0 ATN1 On — Return To The On-Line State Parameters Default If the user enters the command mode from the data mode by issuing the escape sequence, or as a result of an ON-to-OFF transition of DTR with the &D1 option in effect, the user may return to the data mode without terminating a call by issuing the O0 command.
  • Page 46 Section Four Result Codes CONNECT XXXX NO CARRIER P — Set Pulse Dial as Default Parameters Default Causes the modem to assume that all subsequent dial commands are pulse dialled. The user may omit the "P" from the dial strings. Qn —...
  • Page 47 Examples ATSn ATSn=x ATSn? T — Set Tone Dial as Default Parameters: Default: Causes the modem to assume that all subsequent dial commands are tone dialled. The user may omit the “T” from the dial string. Vn — Result Code Form Parameters Default Selects whether the modem returns long form or short form result codes.

  • Page 48: Xn - Extended Result Codes

    Section Four Xn — Extended Result Codes Parameters Default Determines whether the modem responds to dial tone and busy signals, and how it displays result codes for CONNECT messages. When the modem ignores dial tone, it waits for a time delay given by register S6 (default = 2 seconds) and then dials regardless of presence or absence of dial tone;...
  • Page 49 Result Codes — Q0, V1, Wn, S95 Short Form Note: Carrier, Compression, and Protocol messages controlled by W command and S95. User’s Guide and Reference Long Form CONNECT RING NO CARRIER ERROR CONNECT 1200 NO DIAL TONE BUSY NO ANSWER CONNECT 0600 CONNECT 2400 CONNECT 4800...
  • Page 50 Section Four Short Form Note: Carrier, Compression, and Protocol messages controlled by W command and S95. * Only applicable to Trumpcard 28800 version 4 - 18 Long Form CARRIER 12000 CARRIER 14400 CARRIER 16800 * CARRIER 19200 * CARRIER 21600 * CARRIER 24000 * CARRIER 26400 * CARRIER 28800 *...
  • Page 51 Yn — Control Long Space Disconnect Parameters Default Enable/disable the generation and response to long space disconnect. Examples ATY0 ATY1 Zn — Reset Parameters Default Causes the modem to disconnect and performs a warm start. This command must be the last command on the command line. The reset actions are 1) Clear serial port buffers, 2) Set the baud rate and parity to match when any AT command is issued, 3) Restore the active configuration with the user profile denoted by the parameter, and 4) clear...

  • Page 52: Dn - Dtr Option

    Section Four &Dn — DTR Option Parameters Default Determines actions taken by the modem in relation to the Data Terminal Ready (/DTR) signal of the serial port. The effect of /DTR loss depends upon the &D and &Q (&M) commands. The action for the event that follows /DTR loss is indicated in the following table: &Q0...
  • Page 53 &Gn — Set Guard Tone Parameters Default Normally, controls the generation of guard tone. This command is not implemented; however, the command structure is provided for application compatibility. &Jn — Telephone Jack Selection Parameters Default The command structure is provided for application compatibility only and performs no function.
  • Page 54 Section Four &Ln — Line Type Parameters Default Controls selection of leased line or dial-up line. Although the modem has only a single line connection, the power level is changed when setting leased line operation. Examples AT&L0 AT&L1 &Mn — Communication Mode Parameters Default Same as &Q0.
  • Page 55 Examples AT&Q0 AT&Q4 AT&Q5 AT&Q6 &Rn — RTS/CTS Option Parameters Default Controls the state of the Clear To Send (/CTS) signal operation, this can be altered if hardware flow control is enabled. (see &K command). Examples AT&R0 AT&R1 &Sn — DSR Option Parameters Default Determines whether Data Set Ready (/DSR) operates in accordance with...
  • Page 56 Section Four &Tn — Test and Diagnostic Parameters Default Selects the test command. Test commands must be initiated in the command mode with asynchronous operation in the Direct mode selected (&Q0) at a speed of less than 14400 or 28800 (28800 version only). A telco line connection must be established prior to initiating digital loopback tests.
  • Page 57 AT&T6 AT&T7 AT&T8 &V — View Configuration and User Profiles Parameters Default Displays the active configuration and user profiles. Example AT&V ACTIVE PROFILE: B1 E1 L2 M1 N1 Q0 T V1 W0 X4 Y0 &C0 &D0 &G0 &J0 &K3 &Q5 &R0 &S0 &T4 &X0 &Y0 S00:000 S01:000 S02:043 S03:013 S04:010 S05:008 S06:002 S07:030 S08:002 S09:006 S10:014 S11:095 S12:050 S18:000...
  • Page 58 Section Four STORED PROFILE 1: B1 E1 L2 M1 N1 V1 W0 X4 Y0 &C0 &D0 &G0 &JO &K3 &Q5 &R0 &S0 &T4 &X0 S00:000 S02:043 S06:002 S07:030 S08:002 S09:006 S10:014 S11:095 S12:050 S18:000 S36:005 S37:000 S40:105 S41:135 S46:138 S95:000 TELEPHONE NUMBERS: &Wn —...
  • Page 59 &Zn=x — Store Phone Number Parameters Default Stores a 36-digit dial string (x) in the specified entry (n) for later dialling. (See DSn command.) \Bn — Transmit Break Parameters Default When this command is entered during a non-error correction connection, the modem sends a break signal to the remote modem.
  • Page 60 Section Four Examples When a BREAK is received from the communications software when connected to a remote modem, the modem takes the following action: AT\K0,2,4 AT\K1 AT\K3 AT\K5 When a BREAK is received from the remote modem during a non-error correction connection, the modem takes the following action AT\K0,1 AT\K2,3...
  • Page 61 \Nn — Operation Mode Control Parameters Default Selects the operating mode the modem uses while connected (see &Qn command). Examples AT\N0 AT\N1 AT\N2 AT\N3 AT\N4 AT\N5 %Cn — Compression Control Parameters: Default Enables or disables data compression negotiation. The modem can only perform data compression on an error-correcting link.
  • Page 62 Section Four %En — Enable/Disable Line Quality Monitor Parameters Default Controls whether or not the modem will automatically monitor the line quality and request a retrain, or fall back when line quality is insufficient, or fall forward if line quality is sufficient. Examples AT%E0 AT%E1...
  • Page 63 Returns the high-order byte of the calculated Eye Quality Monitor (EQM) value. The value for a normal connection ranges from about 0 to 2 and approaches 8 for a progressively poorer connection. -Kn — MNP Extended Services Parameters Default Enables the modem to investigate the capabilities of the modem's MNP10 capacity, and determine whether a V.42 LAPM connection will be converted to an MNP connection.
  • Page 64 Section Four Enables adjustment of the transmit levels based on attenuation and possibly, signal-to-noise ratio of the line to minimize the "clipping". The transmit levels are adjusted only when retrain and speed shift are performed. Examples AT)M0 AT)M1 :En — Compromise Equalizer Parameters Default Enables or disables the V.32 compromise equalizer.
  • Page 65 AT@M30 AT@M31 [n init string] — Event Based Command Parameters Defaults The event based command is unique in that it allows single or multiple AT commands to be associated with an event identified by an event identifier “n”. Currently only two events are identified; event 0 indicates that the modem is currently operating using a land line based communication line;...

  • Page 66: Modem S Registers

    Section Four The above command processes the &F&C1&D2&S1 once when the command line is first entered, the S95=18 whenever operating as a land based connection and S95=44)M1*H2:E0 whenever operating as a cellular based connection. AT[] or AT[0] The above command clears any command(s) associated with event 0 (land based connection).
  • Page 67 S9 * Carrier Detect Response Time Lost Carrier To Hang Up Delay S11 * DTMF Tone Duration S12 * Escape Code Guard Time Reserved S14 * Bit Mapped Options ** Reserved Bit Mapped Test Options ** Reserved S18 * Test Timer Reserved Reserved S21 *...
  • Page 68 Section Four S95 * Extended Result Codes * Register value may be stored in one of two user profiles with the AT&Wn command. ** Writing to bit mapped options registers, although possible, can result in unreliable and 4 - 36 unpredictable operation.

  • Page 69: Register Descriptions

    Register Descriptions S0 — Number of Rings Till Auto-Answer Range Default Establishes the number of rings required before the modem answers the incoming calls. Setting this register to zero disables auto-answer mode. S1 — Ring Counter Range Default Number of rings which the modem detects before it answers a call. If no rings occur over an eight second interval, the register is cleared.

  • Page 70: S8 - Pause Time For Dial Delay

    Section Four S5 — Backspace Character Range Default Sets the character recognized as a backspace. Pertains to asynchronous operation only. The modem will not recognize the Backspace character if it is set to a value that is greater than 32 ASCII. This character can be used to edit a command line.

  • Page 71: S9 - Carrier Detect Response Time

    Default Sets the length of time to pause when the modem encounters the "Pause During Dial" call progress feature, i.e., the comma (,). S9 — Carrier Detect Response Time Range Default Determines how long a carrier signal must be present before the modem recognizes it as a carrier and turns on /RLSD.

  • Page 72: S18 - Test Timer

    Section Four S18 — Test Timer Range Default Sets the length of time the modem conducts a test before returning to the command mode. If this register is zero, the test will not automatically terminate; the test must be terminated from the command mode by issuing an &T0 or H command.
  • Page 73 S32 — XON Character Range 0-255 Default Sets the value of the XON character. S33 — XOFF Character Range 0-255 Default Sets the value of the XOFF character S36 — LAPM Failure Control Range Default This register is used when the S48 register contains the value 128 and an attempted error correction link fails.
  • Page 74 Section Four S36 = 4 S36 = 5 S36 = 6 S36 = 7 S37 — Desired Telco Line Speed Range Default This register determines the desired telco line speed if the N0 command is in effect. If an invalid number is entered, the number is accepted into the register, but S37 will act as if the default value is entered.
  • Page 75 S38 — Delay Before Forced Disconnect Range Default This register specifies the delay between the modem's receipt of the Hangup (H) command to disconnect (or ON-to-OFF transition of /DTR if the modem is programmed to follow the signal) and the disconnect operation.
  • Page 76 Section Four S48 — V.42 Negotiation Action Range Default The V.42 negotiation process determines the capabilities of the remote modem. However, when the capabilities of the remote modem are known and negotiation is unnecessary, the process can be bypassed if desired. If an invalid number is entered, it is accepted into the S register, but S48 will act as if 128 is entered.
  • Page 77 S95 — Extended Result Codes The bits in this register can be set to override some of the Wn command options. A bit set to a 1 in this register will enable the corresponding result code regardless of the Wn setting. Bit 0 Bit 1 Bit 2...

  • Page 78: Facsimile Commands

    Section Four Facsimile Commands Fax commands are listed here only for reference. Use of these commands should be limited to fax application software. If you have additional questions about the Trumpcard facsimile operation, please contact Ositech (our address and telephone number are in the front of this manual).

  • Page 79: Section Five

    Section Five Modem Test Procedures This section of the manual describes the different tests that you can perform when you are trying to find the source of a problem. • Local Modem Self-Test • Local Analog Loopback • Local Analog Loopback with Self-Generated Pattern •...

  • Page 80: Local Modem Self-Test

    Section Five Local Modem Self-Test To run a local self-test: 1. Put the Modem into interactive or local mode. Refer to the communications software manual for this information. 2. Enter AT [ENTER]. The Modem will respond with OK. If you cannot see the letters you entered, the local Modem echo is OFF.

  • Page 81: Local Analog Loopback

    Local Analog Loopback This test checks the path between the local Modem and the PC. The test is only functional when the Modem is in direct mode (&Q0) and the COM port baud rate is set to 14400 bps (Trumpcard 14400) / 28800 bps (Trumpcard 28800) or less.

  • Page 82: Local Analog Loopback With Self-Generated Pattern

    Section Five Local Analog Loopback with Self- Generated Pattern This test verifies the integrity of the local Modem transmit and receive circuits. The test is only functional when the Modem is in direct mode (&Q0) and the COM port baud rate is set to 14400 bps (Trumpcard 14400) / 28800 bps (Trumpcard 28800) or less.

  • Page 83: Remote Digital Loopback

    Remote Digital Loopback This test checks the local and remote modems and the telephone circuit. The test is only functional when the Modem is set to direct mode (&Q0) and the COM port baud rate is set to 14400 bps (Trumpcard 14400) / 28800 bps (Trumpcard 28800) or less.

  • Page 84: Remote Digital Loopback With Self-Generated Pattern

    Section Five Remote Digital Loopback with Self- Generated Pattern This procedure tests the remote Modem port, the telephone line, the local serial and Modem ports. The test is only functional when the Modem is in direct mode (&Q0) and the COM port baud rate is set to 14400 bps (Trumpcard 14400) / 28800 bps (Trumpcard 28800) or less.

  • Page 85: Local Digital Loopback

    Local Digital Loopback This test is used to verify the communications link and the remote Modem, and is only functional when the Modem is in direct mode (&Q0) and the COM port baud rate is set to 14400 bps (Trumpcard 14400) / 28800 bps (Trumpcard 28800) or less.

  • Page 86: Testing Modem Memory

    Section Five Testing Modem Memory The I command can be used to obtain information on the modem’s memory and perform a checksum test. Product Information This test displays the modem’s product information. 1. Enter ATI3 [ENTER]. The Modem will respond with a line identifying the Modem and its capabilities.

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