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Multi-Tech Systems MT3334SMI Table 3-2. Single-Page Class 1 Transmit Example

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ModemModule Developer’s Guide

MT3334SMI38

Table 3-2. Single-Page Class 1 Transmit Example

Action by Action by

Command Respone Local Modem Remote PC

AT+FCLASS=1 OK Set Class 1

ATD<string> Dial and send CNG Answers

Look for V.21 Sends CED, V.21

Detect flags Sends HDLC flags

CONNECT Detect flags

<NSF frame> Get CSI Send CSI packet

<DLE><ETX> Send NSF packet

OK

AT+FRH=3

CONNECT Detect flags

<CSI frame data> Get CSI Send CSI packet

<DKE><ETX> Get FCS

OK Accept FCS Check FCS

AT+FRH=3

CONNECT Detect flags

<DIS> frame data Get DIS Send DIS packet

<DKE><ETX> Get CRC

OK Accept FCSCheck FCS

AT+FRH=3 NO CARRIER Detect loss of carrier Drop carrier

AT+FTH=3 Send V.21 carrier Detect carrier

CONNECT Send flags Detect flags

Send TSI frame Get TSI frame

<TSI frame data> Send FCS

<DLE><ETX> CONNECT Send flags

Send DCS frame Send DCS frame

<DCS frame data> Send FCS, flags

<DLE><ETX> OK Drop carrier

AT+FTS=8; +FTM=96 Wait 80 msec

CONNECT Send V.29 carrier Detect carrier

<TCF data pattern> Send TCF data Get TCF data

<DLE><ETX> OK Drop carrier

AT+FRH=3 Detect carrier Send V.21 carrier

CONNECT Detect flags Send flags

<CFR frame data> Get CFR frame Send CFR frame

<DLE><ETX> Check FCS Send CRC

OK Accept FCS

AT+FRH=3 NO CARRIER Detect loss of carrier Drop carrier

AT+FTM=96 CONNECT Send V.29 carrier Detect carrier

<page image data> Send page data Receive page

<DLE><ETX> OK Drop carrier

AT+FTS=8; +FTH=3 Wait 80 msec

Send V.21 carrier Detects carrier

CONNECT Send flags Detects flags

<EOP frame data> Send EOP frame Receives EOP

<DLE><ETX> Send FCS

OK Drop carrier (Final frame)

AT+FRH=3 Detect carrier Send V.21 carrier

CONNECT Detect flags Send flags

<MCF frame data> Get MCF frame Send MCF frame

<DEL><ETX> Check FCS Send FCS

OK Accept FCS

AT+FRH=3 NO CARRIER Detect carrier loss Drop carrier

AT+FTH=3 Send V.21 carrier Detects carrier

CONNECT Send flags Detect flags

<DCN packet> Send DCN frame Receives DCN

<DLE><ETX> Send FCS

OK Drop carrier

ATH0 OK Hang up Hangup

Contents

Main Developers Guide Record of Revisions Trademarks Contents Chapter 1 - Introduction and Description Chapter 2 - AT Commands, S-Registers, and Result Codes Chapter 3 - Class 1 Fax Commands Chapter 4 - Class 2 Fax Commands Page Page Product Description Features MT3334SMI 7 Technical Specifications The ModemModule meets the following specifications: Page MT3334SMI 9 Physical Dimensions Figure 1-2 illustrates the the physical dimensions of the MT3334SMI. .020 .0002 SQUARE [0,51] MAXIMUM COMPONENT HEIGHT SOLDER SIDE Test/Demo Board Specifications MT3334SMI 11 Test/Demo Board Block Diagram Figure 1-4. MT3334SMI Test/Demo Board Block Diagram MT3334SMI Pin-out Figure 1-5. MT3334SMI Pinout Typical Application MT3334SMI Design Considerations Hardware Considerations PC Board Layout Considerations p Z Z Calculating Z for Tip and Ring Traces S w + t MT3334SMI Placement Key: Telecom Labeling Requirements FCC Part 68 Reregistration Industry Canada CS-03 Multiple Listing Page AT Command Summary Page Page Page Page Page Page Page S-Registers Page Result Codes Page Class 1 Fax Command Summary Page Page Page Page Page Table 3-2. Single-Page Class 1 Transmit Example Action by Action by Command Respone Local Modem Remote PC Chapter 3 - Class 1 Fax Commands MT3334SMI 39 Table 3-3. Single-Page Class 1 Answer & Receive Example Action by Action by Command Respone Local Modem Remote PC OK Accepts FCS AT+FRH=3 NO CARRIER Detect loss of Drops carrier carrier ATH0 OK Hangs up Page Page Class 2 Fax Command Implementation Class 2 Fax Commands (EIA SP-2388 August 1990) +FAA FAX Auto Answer Enable +FAXERR T.30 Session Error Report +FBOR Data Bit Order Selection +FCQ Copy Quality Checking +FCR Capability to Receive +FCTCRTY ECM Retry Count +FDCC Fax Capability Parameters +FDCS Current Session Results +FDFFC Data Compression Format Conversion +FDIS Current Session Parameters +FDR Begin or Continue Phase C Receive Data +FDT Begin Phase C Data Transmission +FECM Error Correction Mode Control +FET Transmit Page Punctuation Page Page +FDIS Reports DIS Frame Information +FET Post Page Message Response +FHNG Call Termination with Status +FPTS Receive/Transmit Page Transfer Status For More Information Page Page Basic Procedure Setup Changing the Setup Password Changing the Remote Escape Character Page Page Local Analog Loopback Test (V.54 Loop 3) Computer or Terminal AT&T1 CONNECT UUUUUUUUU UUU Digital Analog Local MultiModem Test procedure Remote Digital Loopback Test (V.54 Loop 2) Test procedure Local Digital Loopback Test (V.54 Loop 2) Test Procedure Page Upgrade Overview Step 1: Identify the Modem Firmware Step 2: Identify the Current Firmware Version Multi-Tech Web Site Multi-Tech BBS Step 3: Download the Upgrade File Multi-Tech Web Site Multi-Tech BBS Step 4: Extract the Upgrade Files Step 5: Clear Your Stored Paramenters Step 6: Use FlashPro to Upgrade Modem Firmware Step 7: Restore Your Parameters Page Appendix A - Regulatory Agency Compliance FCC Regulations for Telephone Line Interconnection Canadian Limitations Notice: FCC FAX Update International Modem Restrictions EMC, Safety and Terminal Directive Compliance European Directives User Guide Statement New Zealand Telecom Warning Notice Appendix B - Multi-Tech Flash Programming Protocol Introduction 1. Programming the Modem 2. Other supported boot code commands 3. Other programming concerns Intel Hex Format Data Record Extended Address Record End of File Record Index A B C D E F G H N O P R S