Ositech-comm Trumpcard Data/Fax Modem Manuel d'utilisateur Page 55
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User’s Guide and Reference 4 - 23
Modem Command Reference
Examples
AT&Q0 Selects asynchronous operation in the Direct mode.
In this mode, the communications software speed
must match the telco line speed.
AT&Q4 Selects AutoSync operation. Is used in conjunction
with communications software that is compatible
with the Hayes Synchronous Interface (HSI).
AT&Q5 Selects error correction mode. Modem negotiates
an error-correction link. The modem can be
configured to either disconnect or fallback to a
normal asynchronous connection if the link cannot
be negotiated (refer to register S36).
&Q5 and S36=0 Same as \N2 command (no
fallback)
&Q5 and S36=1 Same as \N3 command (fallback)
AT&Q6 Selects asynchronous operation in Normal mode
(Speed Buffering). In this mode, the communications
software speed can differ from the telco line speed.
&Rn — RTS/CTS Option
Parameters 0 or 1
Default 0
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 CTS acts according to V.25bis handshake (i.e. /CTS
tracks /RTS [Request To Send])
AT&R1 The modem ignores /RTS;/CTS is always ON
&Sn — DSR Option
Parameters 0 or 1
Default 0
Determines whether Data Set Ready (/DSR) operates in accordance with
EIA-232-D specification or remains ON.
Examples
AT&S0 DSR is always ON
AT&S1 DSR is turned ON at start of handshaking and OFF
when carrier is lost
- Trumpcard Data/Fax Modem 1
- User’s Guide and Reference 1
- Copyright 2
- How To Contact Us 2
- Contents 8
- Modem Command Reference 4-1 9
- Modem Test Procedures 5-1 9
- Introduction 11
- Features 12
- Facsimile Mode 13
- Cellular Mode 13
- Unique Features 14
- Industry Standards 15
- Section One 16
- Hardware Installation 17
- Preparing for Installation 17
- Installing the Trumpcard 18
- Section Two 20
- Basic Modem Operation 21
- Before You Begin 22
- Operating the 23
- Making an Outgoing Call 24
- Re-Dialling the Last Number 25
- Storing a Number 25
- Connection Messages 25
- Section Four 26
- Ending Your Connection 27
- Connection 27
- Receiving an Incoming Call 28
- Cellular Phone Configuration 30
- Outgoing Cellular Call 30
- Incoming Cellular Call 30
- Cellular Call Status 31
- Modem Command Reference 33
- Modem Command Guidelines 34
- Modem Command Summary 36
- Modem Command Descriptions 38
- Bn — Set ITU-T or Bell Mode 39
- Dn — Dial 39
- Examples 40
- En — Command Echo 41
- Sub-parameter Definitions 42
- Hn — Switch-Hook Control 43
- In — Identification 44
- Ln — Speaker Volume 44
- Mn — Speaker Control 44
- Nn — Automode Detection 45
- P — Set Pulse Dial as Default 46
- Qn — Result Code Display 46
- Sn — Read/Write S Registers 46
- T — Set Tone Dial as Default 47
- Vn — Result Code Form 47
- Wn — Connect Message Control 47
- Xn — Extended Result Codes 48
- Section Four 50
- Zn — Reset 51
- &Cn — DCD Option 51
- &Dn — DTR Option 52
- &Gn — Set Guard Tone 53
- &Ln — Line Type 54
- &Mn — Communication Mode 54
- &Qn — Communication Mode 54
- &Rn — RTS/CTS Option 55
- &Sn — DSR Option 55
- &Tn — Test and Diagnostic 56
- &Wn — Store User Profile 58
- \Bn — Transmit Break 59
- \Kn — Break Control 59
- \Nn — Operation Mode Control 61
- %Cn — Compression Control 61
- -Kn — MNP Extended Services 63
- *Hn — Link Negotiation Speed 63
- :En — Compromise Equalizer 64
- Modem S Registers 66
- Modem Register Summary 66
- Register Descriptions 69
- S5 — Backspace Character 70
- S11 — DTMF Tone Duration 71
- S12 — Escape Code Guard Time 71
- S18 — Test Timer 72
- S24 — Sleep Inactivity Timer 72
- S25 — Delay to DTR 72
- S30 — Inactivity Timer 72
- S32 — XON Character 73
- S33 — XOFF Character 73
- S36 — LAPM Failure Control 73
- S46 — Protocol Selection 75
- S48 — V.42 Negotiation Action 76
- S95 — Extended Result Codes 77
- Facsimile Commands 78
- Modem Test Procedures 79
- Local Modem Self-Test 80
- Local Analog Loopback 81
- Generated Pattern 82
- Remote Digital Loopback 83
- Local Digital Loopback 85
- Testing Modem Memory 86
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