Ositech comm Trumpcard Data/Fax Modem manual Local Analog Loopback

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Modem Test Procedures

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.

To start this test, the Modem must be in command mode.

To run this test:

1.Enter AT&T1 [ENTER]. Wait until the Modem returns a CONNECT message.

2.Enter a test message. For example, “This message should be echoed back.”

The message should immediately appear on the screen as you enter it.

3.Enter +++ (the escape sequence).

The Modem will respond with OK. The Modem is now in command mode.

4.Enter AT&T0 [ENTER] to end the test.

User’s Guide and Reference

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Contents User’s Guide and Reference Trumpcard Data/Fax ModemHow To Contact Us CopyrightFTP Preface FCC Notice Regulations Governing the Use of Modems Page Vii Contents Modem Command Reference Page Introduction Data Mode FeaturesCellular Mode Facsimile ModeUnique Features Industry Standards 22bis32bis MNP 2, 3, 42bisMNP 27terPreparing for Installation Hardware InstallationInstalling the Trumpcard Modem Pcmcia Modem Adapter connector is keyed to go in one way Line Interface Module Connection to Telephone Network Basic Modem Operation Enabling The Trumpcard Before You BeginOperating the Trumpcard Using AT CommandsTone or Pulse Dialling Making an Outgoing CallRe-Dialling the Last Number Storing a NumberConnection Messages FAX Connect 1200TX/75RXData CarrierEnding Your Connection Setting Up for a Non-Error Correcting ConnectionReceiving an Incoming Call Setting up for a Cellular ConnectionModem Configurations for Cellular Operation Cellular Phone Configuration Cellular Call Status Section Four Trumpcard 14400/28800 Modem Modem Command Reference Modem Command Guidelines Modem Command Reference +MS Modem Command SummaryModem Command Reference Modem Command Descriptions Re-executeAnswer Dn Dial Bn Set ITU-T or Bell ModeATB0 ATB1ATDS=2 Fn Select Line Modulation 14400 only En Command EchoSub-parameter Definitions +Ms Select Line Modulation 28800 onlyVFC Hn Switch-Hook ControlATH0 ATH1Identification OlumeMn Speaker Control On Return To The On-Line State Nn Automode DetectionQn Result Code Display Set Pulse Dial as DefaultSn Read/Write S Registers ATQ0Set Tone Dial as Default Vn Result Code FormWn Connect Message Control Xn Extended Result Codes Result Codes Q0, V1, Wn, S95 Carrier Connect Zn Reset Yn Control Long Space DisconnectCn DCD Option Restore Factory Configuration Dn DTR OptionNone Gn Set Guard Tone Jn T elephone Jack SelectionKn DTE/Modem Flow Control Pn Dial Pulse Ratio disabled for the U.S Mn Communication ModeQn Communication Mode Ln Line TypeSn DSR Option Rn RTS/CTS OptionTn T est and Diagnostic AT&T6 View Configuration and User ProfilesAT&T7 AT&T8Wn Store User Profile Yn Designate Default User Profile\Bn T ransmit Break Zn=x Store Phone Number\Gn Modem-to-Modem Flow Control \Kn Break ControlAT\K1 AT\K3AT\K5 Cn Compression Control \Nn Operation Mode ControlEn Enable/Disable Line Quality Monitor Report Received Signal LevelReport Line Signal Quality Kn MNP Extended Services Mn T ransmit Level Adjustment for Cellular ConnectionHn Link Negotiation Speed En Compromise Equalizer @Mn Initial Cellular Power LevelInit string = Null Init string Event Based CommandDefault Register Settings Modem S RegistersModem Register Summary Modem Command Reference S95 Extended Result Codes Register Descriptions S6 Wait S5 Backspace CharacterS7 Wait For Carrier After Dial S8 PauseS9 Carrier Detect Response Time S10 Lost Carrier To Hang Up DelayS11 Dtmf T one Duration S12 Escape Code Guard TimeS24 Sleep Inactivity Timer S18 Test TimerS25 Delay to DTR S30 Inactivity TimerS32 XON Character S33 Xoff CharacterS36 Lapm Failure Control S37 Desired Telco Line Speed Range DefaultS46 Protocol Selection S38 Delay Before Forced DisconnectS86 Connection Failure Cause Code S48 V .42 Negotiation ActionS95 Extended Result Codes Facsimile Commands Class 1 CommandsClass 2 Commands Modem Test Procedures Local Modem Self-Test Local Analog Loopback Local Analog Loopback with Self- Generated Pattern Remote Digital Loopback Remote Digital Loopback with Self- Generated Pattern Local Digital Loopback Testing Modem Memory Product InformationROM Checksum Test