Ositech comm Trumpcard Data/Fax Modem specification

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.

For this test, the Modem must be in command mode.

To start the test:

1.Enter AT&T8 [ENTER] and wait for a while. The Modem will not respond visibly.

2.Enter AT&T0 [ENTER] to mark the end of the test. The Modem will respond with a three-digit number indicating the test results.

During this test, a continuous data sequence is sent by the local Modem transmitter and picked up by the local Modem receiver. The transmitted and received data sequences are compared and the Modem then returns a three-digit number indicating test results. If the result is 000, the local Modem transmit and receive circuits have passed the test.

5 - 4

Trumpcard 14400/28800 Modem

Image 82

Ositech comm Trumpcard Data/Fax Modem manual Local Analog Loopback with Self- Generated Pattern

Contents

Trumpcard Data/Fax Modem User’s Guide and Reference Copyright How To Contact UsFTP Preface FCC Notice Regulations Governing the Use of Modems Page Vii Contents Modem Command Reference Page Introduction Features Data Mode Facsimile Mode Cellular Mode Unique Features 22bis Industry Standards32bis MNP 42bisMNP 2, 3, 27ter Hardware Installation Preparing for Installation Installing the Trumpcard Modem Pcmcia Modem Adapter connector is keyed to go in one way Line Interface Module Connection to Telephone Network Basic Modem Operation Before You Begin Enabling The Trumpcard Using AT Commands Operating the Trumpcard Making an Outgoing Call Tone or Pulse Dialling Storing a Number Re-Dialling the Last NumberConnection Messages Data Connect 1200TX/75RXFAX Carrier Setting Up for a Non-Error Correcting Connection Ending Your Connection Setting up for a Cellular Connection Receiving an Incoming Call Modem 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 Modem Command Summary +MS Modem Command Reference Re-execute Modem Command DescriptionsAnswer ATB0 Bn Set ITU-T or Bell ModeDn Dial ATB1 ATDS=2 En Command Echo Fn Select Line Modulation 14400 only +Ms Select Line Modulation 28800 only Sub-parameter Definitions ATH0 Hn Switch-Hook ControlVFC ATH1 Olume IdentificationMn Speaker Control Nn Automode Detection On Return To The On-Line State Sn Read/Write S Registers Set Pulse Dial as DefaultQn Result Code Display ATQ0 Vn Result Code Form Set Tone Dial as DefaultWn Connect Message Control Xn Extended Result Codes Result Codes Q0, V1, Wn, S95 Carrier Connect Yn Control Long Space Disconnect Zn ResetCn DCD Option Dn DTR Option Restore Factory ConfigurationNone Jn T elephone Jack Selection Gn Set Guard ToneKn DTE/Modem Flow Control Qn Communication Mode Mn Communication ModePn Dial Pulse Ratio disabled for the U.S Ln Line Type Rn RTS/CTS Option Sn DSR Option Tn T est and Diagnostic AT&T7 View Configuration and User ProfilesAT&T6 AT&T8 Yn Designate Default User Profile Wn Store User Profile \Gn Modem-to-Modem Flow Control Zn=x Store Phone Number\Bn T ransmit Break \Kn Break Control AT\K3 AT\K1AT\K5 \Nn Operation Mode Control Cn Compression Control Report Received Signal Level En Enable/Disable Line Quality MonitorReport Line Signal Quality Mn T ransmit Level Adjustment for Cellular Connection Kn MNP Extended ServicesHn Link Negotiation Speed @Mn Initial Cellular Power Level En Compromise Equalizer Init string Event Based Command Init string = Null Modem S Registers Default Register SettingsModem Register Summary Modem Command Reference S95 Extended Result Codes Register Descriptions S7 Wait For Carrier After Dial S5 Backspace CharacterS6 Wait S8 Pause S11 Dtmf T one Duration S10 Lost Carrier To Hang Up DelayS9 Carrier Detect Response Time S12 Escape Code Guard Time S25 Delay to DTR S18 Test TimerS24 Sleep Inactivity Timer S30 Inactivity Timer S33 Xoff Character S32 XON CharacterS36 Lapm Failure Control Range Default S37 Desired Telco Line Speed S38 Delay Before Forced Disconnect S46 Protocol Selection S48 V .42 Negotiation Action S86 Connection Failure Cause Code S95 Extended Result Codes Class 1 Commands Facsimile 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 Product Information Testing Modem MemoryROM Checksum Test