Ositech comm Trumpcard Data/Fax Modem instruction

Section Four

S48 — V .42 Negotiation Action

Range

0,7, or 128

Default7

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.

S48 = 0	Disable negotiation; bypass the detection and
	negotiation phases; and proceed with LAPM.
S48 = 7	Enable negotiation.
S48 = 128	Disable negotiation; bypass the detection and
	negotiation phases; and proceed at once with the
	fallback action specified in S36. Can be used to
	force MNP.
S86 — Connection Failure Cause Code
Range	0, 4, 5, 9, 12, 13, or 14
Default	0

When the modem issues a NO CARRIER result code, a value is written to this S register to help determine the reason for the failed connection. S86 records the first event that contributes to a NO CARRIER message.

The cause codes are:
S86	= 0	Normal disconnect, no error occurred
S86	= 4	Loss of carrier
S86	= 5	V.42 negotiation failed to detect an error-correction
		modem at the other end
S86	= 9	The modems could not find a common protocol
S86	= 12	Normal disconnect initiated by the remote modem
S86	= 13	Remote modem does not respond after 10
		re-transmissions of the same message
S86	= 14	Protocol violation

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Trumpcard 14400/28800 Modem

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Ositech comm Trumpcard Data/Fax Modem manual S48 V .42 Negotiation Action, S86 Connection Failure Cause Code

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 42bis MNP 2, 3,MNP 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 Connect 1200TX/75RX FAXData 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 Bn Set ITU-T or Bell Mode Dn DialATB0 ATB1 ATDS=2 En Command Echo Fn Select Line Modulation 14400 only +Ms Select Line Modulation 28800 only Sub-parameter Definitions Hn Switch-Hook Control VFCATH0 ATH1 Olume IdentificationMn Speaker Control Nn Automode Detection On Return To The On-Line State Set Pulse Dial as Default Qn Result Code DisplaySn Read/Write S Registers 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 Mn Communication Mode Pn Dial Pulse Ratio disabled for the U.SQn Communication Mode Ln Line Type Rn RTS/CTS Option Sn DSR Option Tn T est and Diagnostic View Configuration and User Profiles AT&T6AT&T7 AT&T8 Yn Designate Default User Profile Wn Store User Profile Zn=x Store Phone Number \Bn T ransmit Break\Gn Modem-to-Modem Flow Control \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 S5 Backspace Character S6 WaitS7 Wait For Carrier After Dial S8 Pause S10 Lost Carrier To Hang Up Delay S9 Carrier Detect Response TimeS11 Dtmf T one Duration S12 Escape Code Guard Time S18 Test Timer S24 Sleep Inactivity TimerS25 Delay to DTR 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