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Chapter 1 - Introduction and Description

1.3 How to Use This Manual

This chapter begins with a short introduction, a profile on modem features, followed by a guide (which
you are now reading) to the use of this manual. This manual includes hardware installation and
configuration described in

covers communication software configuration

recommended specifically for the MT2834BLR. Other issues covered include setting up initialization
strings, changing default parameters, configuring software for the remote system and file transfer
protocols.

covers modem AT commands, Remote Configuration commands, S-Registers

and Result Codes.

illustrates the MT2834BLR diagnostic capabilities, providing Analog

and Digital Loopback testing procedures.

explains product warranty, technical support and

Multi-Tech BBS information.

provides a detailed description of compliance to BABT

requirements and regulations.

respectively describe FCC requirements

and regulations and technical specifications.

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Содержание CC1600 Series

Страница 1: ...CC1600 Series MT2834BLR Intelligent Data Fax Modem Owner s Manual...

Страница 2: ...isions or changes Record of Revisions F 6 25 99 Manual reformatted for electronic distribution All pages at Revision F Trademarks of Multi Tech Systems Inc are as follows MultiModemII Multi Tech and t...

Страница 3: ...3 2 Loading Trio DataFAX Software 20 3 3 Is Your Modem Ready for Use 23 3 4 Modem Basics 23 3 5 Serial Port Limitations 23 3 5 1 How Can You Identify Your UART Type 24 3 5 2 The 16550 UART and Windows...

Страница 4: ...nchronous Mode 56 5 8 Digital Loopback Test Local Manual Synchronous Mode 57 5 8 Digital Loopback Test Remote Automatic Synchronous Mode 58 Chapter 6 Warranty Service and Tech Support 6 1 Introduction...

Страница 5: ...CC1600 Series Chapter 1 Introduction and Description...

Страница 6: ...st efficient data compression possible for each connection The MT2834BLR is designed for data rates as high as 33 600 bps in full duplex mode over public telephone lines MT2834BLR features include Sup...

Страница 7: ...ing up initialization strings changing default parameters configuring software for the remote system and file transfer protocols Chapter 4 covers modem AT commands Remote Configuration commands S Regi...

Страница 8: ...8 MT2834BLR Owner s Manual...

Страница 9: ...CC1600 Series Chapter 2 Installation and Connection...

Страница 10: ...phone lines plug one end of the RJ 11 cable that is provided with the modem into the DB 9 9 pin connector located on the back plane of the modem rack and the other end into the phone company provided...

Страница 11: ...RJ11W modular phone jack To connect the modem to the phone lines using an CC1600 modem rack plug one end of the RJ11 cable provided with the modem into the rack s RJ11 connector located on the back pl...

Страница 12: ...and TEST OOS berg jumper The sixteen DIP Switches and two berg jumpers control various modem options or set default values for the MT2834BLR s Command mode There is a difference in how several of the...

Страница 13: ...interface Down DTR forced On at all times 2 UP Hardware Flow Control Down Xon Xoff Flow Control 3 UP 15 dB Transmission leased line Down 9 dB Transmission leased line 4 UP UUCP Spoofing Off Down UUCP...

Страница 14: ...Digital Loopback On Down Remote Digital Loopback On 10 UP Dial Up Operation Down Leased Line Operation 11 UP External Clock selected Down Internal Clock selected 12 UP Synchronous Mode On Down Asynchr...

Страница 15: ...the Busy modem 2 5 1 Out of Service Test Jumper When the MT2834BLR is Out Of Service OOS it is busy to incoming calls In the Test default setting the modem drives pin 25 high when the modem is in Test...

Страница 16: ...nal block with a pair of screws Some provide a conventional RJ 11 type of connector If the RJ 11 connector is used you can use the same cable that you use for dial up connection If the screw terminal...

Страница 17: ...when the modem is dialing on line or answering a call The LED also flashes when the modem is pulse dialing in the Command Mode 8 Data Terminal Ready DTR When the DTR LED is lit the modem is permitted...

Страница 18: ...18 MT2834BLR Owner s Manual...

Страница 19: ...CC1600 Series Chapter 3 Communications Software and Modem Basics...

Страница 20: ...tructions for those elements that are not covered in this procedure If you encounter problems during installation refer to the Release Notes included on the Trio CD 1 Turn on your computer and insert...

Страница 21: ...are finished You are prompted to read important information 9 Click Yes to read the Release Notes when you are finished close the release notes dialog and the Trio Setup dialog is displayed 10 Click...

Страница 22: ...screen instructions and when you are finished click Next Dialog The following dialog is displayed 17 Click OK Exit the Installation Program The Trio Applications program group is displayed Your Trio...

Страница 23: ...he data fast enough to keep from losing some of it The 16550AFN however can safely handle data to 115 200 bps When a modem communicates with V 42bis 4 to 1 compression enabled it sends up to four time...

Страница 24: ...6450 UARTs can store data in a one byte first in first out FIFO buffer a memory area in the UART in which the first bit in is the first out but once the buffer is full the data is lost The 16550 has a...

Страница 25: ...is the modem initialization string This is a sequence of commands the software uses to configure the modem when the communications software is loaded or when a session begins Always begin the initial...

Страница 26: ...wer after the first ring and try to communicate with a modem on the other end of the line If you have one telephone line for voice fax and modem communications the modem may attempt to answer all inco...

Страница 27: ...and pacing and ignore DTR AT F X4 E5 E13 D0 M For hardware flow control use the following initialization string AT F X4 E13 D0 M Add S0 0 to both strings to disable auto answer if the modem is on a vo...

Страница 28: ...or successful communications Though the modem can automatically match the speed of the other modem you must specify parameters such as type of flow control break length number of data bits number of s...

Страница 29: ...is more efficient than hardware compression you will have a higher throughput with the former Of course this efficiency does not include the time spent compressing and decompressing ZIP or SIT files...

Страница 30: ...whether your modem is operational If everything s fine your modem will respond OK Note refer to Chapter 4 for additional details on Dialing Automatic Answering Dial Back Up and Automatic Leased Line R...

Страница 31: ...CC1600 Series Chapter 4 Modem AT Commands...

Страница 32: ...RETURN key executes most commands COMMAND A VALUES n a DEFAULT n a DESCRIPTION Answer call even if no ring present COMMAND VALUES n a DEFAULT n a DESCRIPTION This symbol placed in dialing string enabl...

Страница 33: ...Not used in International Models COMMAND Bn VALUES n 0 or 1 DEFAULT B0 DESCRIPTION B0 selects normal transmit buffer size B1 selects reduced transmit buffer size COMMAND BSn VALUES n 0 or 1 DEFAULT B...

Страница 34: ...set to modem default parameters COMMAND Dn VALUES n 0 or 1 DEFAULT D0 DESCRIPTION D0 disables DTR Dialing D1 enables DTR Dialing COMMAND DF VALUES n 0 or 1 DEFAULT DF0 DESCRIPTION DF0 selects V 34 Lin...

Страница 35: ...led E15 selects data compression enabled COMMAND En VALUES n 0 thru 5 DEFAULT E1 DESCRIPTION E0 Modem Won t Escape E1 Method default setting E2 Break Method E3 Either or Break Method E4 No OK Response...

Страница 36: ...requests firmware revision 12 for MTS internal use COMMAND I9 VALUES N A DEFAULT Read Only Command DESCRIPTION The I9 command is a query to display this modem s characteristics when operating within...

Страница 37: ...B4800 selects 4800 bps on line MB9600 selects 9600 bps on line MB14400 selects 14400 bps on line MB19200 selects 19200 bps on line MB28800 selects 28800 bps on line MB33600 selects 33600 bps on line C...

Страница 38: ...N R0 means modem will not reverse modes R1 means modem will reverse modes COMMAND Rn VALUES n 0 1 or 2 DEFAULT R1 DESCRIPTION R0 lets Clear to Send act normally R1 forces Clear to Send on R2 drops for...

Страница 39: ...SB57600 selects 57600 bps at serial port SB115200 selects 115200 bps at serial port COMMAND SPn VALUES n 0 or 1 DEFAULT SP0 DESCRIPTION SP0 disables UUCP spoofing SP1enables UUCP spoofing COMMAND SFn...

Страница 40: ...an bypass V 32terbo handshaking process V0 means V 32terbo enabled in originate answer mode V1 means V 32terbo disabled in originate answer mode COMMAND W VALUES n a DEFAULT n a DESCRIPTION Wait for n...

Страница 41: ...on VALUES n a DEFAULT n a DESCRIPTION Causes return to Command Mode after dialing COMMAND Exclamation VALUES n a DEFAULT n a DESCRIPTION Causes modem to flash On Hook COMMAND VALUES n a DEFAULT n a DE...

Страница 42: ...AND Dxxxxxx Nxx VALUES n a DEFAULT n a DESCRIPTION Callback Phone Numbers xxxxxx with the preceding the phone number indicating the callback modem phone number for the corresponding password at the sa...

Страница 43: ...r is checked against the Delayed and Forbidden Number lists before dialed COMMAND CSPs VALUES n a DEFAULT n a DESCRIPTION The CSP command will change the serial baud rate of your modem by entering CSP...

Страница 44: ...to zero Remote Configuration is disabled 4 1 4 Remote Configuration Procedures The procedures for using the Remote Configuration features are the same whether or not a call originates from the remote...

Страница 45: ...llowed by the S Register number and an equals sign and then a decimal response to the message ENTER THE NEW VALUE IN DECIMAL FORMAT To read an S Register value enter the letter S followed by the S Reg...

Страница 46: ...delay time S8 Pause Time for Comma Unit 1 second Range 0 255 4 255 Default 2 4 Description Sets the length of the pause caused by a comma inserted in a dialing command S9 Carrier Detect Response Time...

Страница 47: ...the break time space to local PC S18 Automatic Leased Line Restoral Unit 30 minutes Range 10 255 Default 30 minutes Description S18 periodically checks the lease line to see if it s operational and r...

Страница 48: ...ASCII Character Range 0 60 Default 10 Description Sets buffer length of command mode after on line escape sequence S36 Time Between DTR Inactive and Modem Off Hook Unit 1 Second Range 0 255 seconds De...

Страница 49: ...s 10 The following tables list result codes generated by the Q command Table 4 2 Q0 Multi Tech Result Codes TERSE VERBOSE 0 OK 1 CONNECT 2 RING 3 NO CARRIER 4 ERROR 5 CONNECT 1200 6 NO DIALTONE 7 BUSY...

Страница 50: ...U T AT T or Bell and not proprietary The W command used in conjunction with specific other AT commands and S Registers can reconfigure the MT2834BLR to conform to a specific application The MT2834BLR...

Страница 51: ...CC1600 Series Chapter 5 Modem Testing...

Страница 52: ...e modem s transmitter and receiver circuits are functioning properly The Digital Loopback Test local manual allows you to verify that the remote computer or terminal the remote modem serial ports the...

Страница 53: ...t message if responses are enabled enter data from your keyboard For this test typing multiple upper case U characters is a good way to send an alternating test pattern of ones and zeros 4 For a more...

Страница 54: ...e AT and hit ENTER you should get an OK message 2 Dial the remote modem by entering the Dial command and the phone number to establish On line mode 3 Type the Escape Sequence AT CR or BREAK AT CR whic...

Страница 55: ...al the remote modem by entering the Dial command and the phone number to establish On line mode Note The T4 command must be set on the remote modem to run this test Computer or Terminal Local MultiMod...

Страница 56: ...onous mode You then compare the test characters multiple upper case U characters in Figure 8 5 on your monitor with the characters you typed If the characters don t match check your computer s COM por...

Страница 57: ...ke certain that you are set up for Synchronous operation by placing DIP Switch 12 in the UP position To initiate the Digital Loopback Test local manual DIP Switch 9 must be in the UP position and the...

Страница 58: ...modems If that test is successful the problem may be the phone lines First make certain that you are set up for Synchronous operation by placing DIP Switch 12 in the UP position To initiate the Digit...

Страница 59: ...CC1600 Series Chapter 6 Warranty Service and Tech Support...

Страница 60: ...EXPRESSED OR IMPLIED AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED This warranty does not apply to any products which have been damaged by li...

Страница 61: ...ing Modem Information Please fill in the following information on your Multi Tech modem This will help tech support in answering your questions Modem Model No Modem Serial No Modem Firmware Version CO...

Страница 62: ...urchase order number for payment if the modem is out of warranty The standard repair charge for this modem is 95 This price is valid at the time of this publication but could change in the future Chec...

Страница 63: ...tion 5 Select a file transfer protocol by typing the indicated letter such as Z for Zmodem the recommended protocol 6 If you select Zmodem the transfer will begin automatically If you select another p...

Страница 64: ...Highlight the HEX file Hit ESC when finished 6 Highlight Program Firmware option in the MAIN MENU When you are prompted to confirm the file to program press Y 7 If you need more assistance programmin...

Страница 65: ...CC1600 Series Appendices...

Страница 66: ...d indication Automatic storage of last number dialed Tone detection busy Auto clear from the originating end DTR dialing Modem PBX timed break register recall European Low Voltage Directive When corre...

Страница 67: ...If a telephone or other device is connected in parallel with the modem the combined REN must not exceed 4 A BT supplied telephone may be assumed to have REN of 1 0 unless otherwise noted The approval...

Страница 68: ...time the modem goes off hook until dialing begins e For correct operation of the call progress monitor the power has to be properly connected and switched on Compliance with BS6328 Part 1 a The modem...

Страница 69: ...practical the telephone company will notify the customer as soon as possible Also you will be advised of your right to file a complaint with the FCC if you believe it is necessary 5 The telephone com...

Страница 70: ...of the power utility telephone lines and internal metallic water pipe system if present are connected together This precaution may be particularly important in rural areas Caution Users should not at...

Страница 71: ...l duplex over both dial up lines and 2 wire or 4 wire leased lines automatic or manual dialing automatic answer Lease Line Restoral When in dial back up mode modem attempts leased line restoral period...

Страница 72: ...00 Hz Mark 2100 Hz Space for Receive Originate 390 Hz Mark 450 Hz Space forReceive Answer Transmit Level 10dBm dial up 9 dBm leased line dBm level selectable with DIP Switch 3 in leased line setting F...

Страница 73: ...Dialing On Line Answering 23 Digital Loopback Test 52 Dimensions 72 DIP Switches and Jumper Settings 11 DIP Switch options 13 DIP Switch Settings 10 DSR follows CD 39 DTR Control 34 DTR Dialing 34 DT...

Страница 74: ...of band Escape Sequence 41 P Pacing 27 Parameters 25 26 28 Changing defaults 26 Defaults 26 Parity 25 Parity selection 42 pause during dialing 41 S25 47 DTR signal 27 E Enq Ack pacing 35 Erase callba...

Страница 75: ...S3 26 SCC 23 Serial Cable 10 Serial cable 27 Serial port 23 24 28 29 serial port commands 39 Sessions 25 Set up Password 45 Sets value of Register 38 Signal Strength Information 36 Signal to Noise Rat...

Страница 76: ...76 MultiModemBL Owner s Manual Z ZIP files 29...

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