Multi-Tech Systems MT3334HD8 - Manuals

MT3334HD8 User Guide 2 CommPlete Communications Server Introduction The Multi-Tech MT3334HD8 is a high speed, high density modem card for the CommPleteCommunications Server. Each MT3334HD8 card contains eight integrated 33,600 bps modems. Eachmodem on the MT3334HD8 card can be configured independent...

MT3334HD8 User Guide 4 CommPlete Communications Server Technical Specifications Model Number MT3334HD8 Data Rates (Modem) Eight independent modems (Modem A, B, C, D, E, F, G, H), each operating at33,600, 31,200, 28,800, 26,400, 24,000, 21,600, 19,200, 16,800, 14,400, 12,000,9600, 4800, 2400, 1200, o...

MT3334HD8 User Guide 8 CommPlete Communications Server Introduction This chapter describes how to install the MT3334HD8 modem card into a CommPlete CommunicationServer CC9600 chassis. This equipment should be installed only by a qualified service person. The MT3334HD8 assembly consists of a high-den...

2 Installation CommPlete Communications Server 9 Pre-Installation Notes Warning: Interconnection directly, or by way of other apparatus, of ports marked “SAFETY WARNING see instructions for use” with ports marked or not so marked may produce hazardous conditions on thenetwork. Advice should be obtai...

MT3334HD8 User Guide 12 CommPlete Communications Server Working with AT Commands The MT3334HD8’s modems are controlled by instructions called AT commands , so called because the attention characters AT precede each command or command string (sequence of commands). You can send commands to the modem ...

3 AT Commands CommPlete Communications Server 13 A parameter after a command (0, 1, 2, etc.) tells the modem which option to use. If you do not specify aparameter, the modem assumes the 0 (zero) option. E , for example, is the same as E0 . You can issue several commands on a single line (a command s...

MT3334HD8 User Guide 16 CommPlete Communications Server Dialing Commands Dialing commands are used to dial and to hang up. Ds Dial s = phone number Default: none The letter D in a command causes the modem to dial the telephone number immediately following it. For example, if you type ATD5551212<C...

3 AT Commands CommPlete Communications Server 17 pauses in the dial sequence, automatic redials if a number is busy, and reverting to command mode orswitching to answer mode after dialing. P, T Pulse or Tone Dialing Default: P The MT3334HD8’s modems can dial numbers by using pulse dialing, tone dial...

3 AT Commands CommPlete Communications Server 19 @ Quiet Answer Use the @ command to access a system that does not provide a dial tone. The @ command causes the modem to wait before processing the next character in the dialing string. The wait is for one or more ringsback followed by five seconds of...

MT3334HD8 User Guide 20 CommPlete Communications Server You can automatically dial a telephone number that is stored in the modem’s number memory by typing ATN n , where n = 0 or 1. For example, you can dial a number stored at N0 by typing ATN0 in terminal mode and pressing E NTER . Warning: Do not ...

3 AT Commands CommPlete Communications Server 21 &Fn Load Default Configuration n = 0, 8, or 9 Default: &F8 MT3334HD8 modems store factory default AT command settings and S-register values in read-onlymemory (ROM); they store your custom AT command and S-register values in nonvolatile random...

MT3334HD8 User Guide 22 CommPlete Communications Server En Echo Command Mode Characters n = 0 or 1 Default: E1 Normally, when you type commands on the keyboard, the modem echoes the characters back to thecomputer or terminal, which displays them on the monitor. Use the E command to turn this feature...

3 AT Commands CommPlete Communications Server 23 &Qn Result Codes (Multi-Tech or Standard AT) n = 0 or 1 Default: &Q0 The MT3334HD8 gives you a choice between Multi-Tech result codes and standard AT command setresponses. Multi-Tech result codes give you more information, but some datacomm pr...

MT3334HD8 User Guide 24 CommPlete Communications Server &An Answerback n = 0 or 1 Default: &A0 The &A command controls the MT3334HD8’s answerback feature. Answerbacks are used in some online realty applications and elsewhere as a security measure. The &A command enables a modem to re...

3 AT Commands CommPlete Communications Server 25 %DC n AT Command Control n = 0 or 1 Default: %DC0 The %DC command allows you to disable the modem’s ability to respond to AT commands. It can be used with auto answer applications in which no call origination is required, with some UNIX applications, ...

3 AT Commands CommPlete Communications Server 27 &P1 sets a pulse dial ratio of 67 ms break to 33 ms make. &RD n Square Wave Ring Detect n = 0 or 1 Default: &RD0 (U.K. and International models) &RD1 (North American models) The ring back sound that you hear when you dial a number is g...

3 AT Commands CommPlete Communications Server 29 RS-232 Interface Commands These commands define how an MT3334HD8 modem will use and respond to standard RS-232 signals. &C n Carrier Detect Control n = 0, 1, 2, or 4 Default: &C1 The &C command lets you control the Carrier Detect (CD) sign...

3 AT Commands CommPlete Communications Server 31 Error Correction and Data Compression Commands You can configure a modem to any of three different V.42 modes of operation (each mode can be with orwithout compression). They are the non-error correction, auto-reliable, and reliable modes. You can als...

MT3334HD8 User Guide 32 CommPlete Communications Server $E n V.42 Error Correction at 300 bps n = 0 or 1 Default: $E0 At 300 bps, error correction is not normally used. $E0 disables 300 bps/V.42 error correction altogether. $E1 enables the modem to function at 300 bps in non-error correction ( &...

3 AT Commands CommPlete Communications Server 33 $R n Retransmit Count n = 0 or 1 Default: $R0 If errors are received during a reliable connection, the modem re-sends the block of data that contained anerror. If another error occurs, it re-sends the block again. The modem counts the number of times ...

3 AT Commands CommPlete Communications Server 35 $SB300 300 bps $SB1200 1200 bps $SB2400 2400 bps $SB4800 4800 bps $SB9600 9600 bps $SB19200 19,200 bps $SB38400 38,400 bps $SB57600 57,600 bps $SB115200 115,200 bps (factory default) Immediate Action Commands Use these commands to get information abou...

MT3334HD8 User Guide 36 CommPlete Communications Server L8 List Online Diagnostics Default: none The L8 command displays the modem’s online status. You can print this display and use it as a modem status report or as diagnostic information (such as when calling Technical Support). If you type +++ATL...

3 AT Commands CommPlete Communications Server 37 $EB0 enables a 10-bit format It automatically detects parity when an AT command is issued. $EB1 enables an 11-bit format. &E3 Flow Control Disable The &E3 command completely disables data flow control initiated by the modem. &E4 Hardware F...

MT3334HD8 User Guide 38 CommPlete Communications Server When two modems are connected in non-error correction mode, XON/XOFF flow control can be used as acomplement to XON/ XOFF pacing. &E10 disables non-error correction mode flow control. &E11 enables non-error correction mode flow control....

3 AT Commands CommPlete Communications Server 39 Escape Sequences Escape sequences are also known as escape codes. They are used to cause the modem to enter commandmode from online mode without disconnecting the call. There are two local escape sequences used by themodem, +++AT<CR> and <BRE...

MT3334HD8 User Guide 40 CommPlete Communications Server O Go Back Online You can use the O command to bring the modem out of command mode and back into online mode. The O command reverses the result of entering the escape code. The O command brings the modem into whichever online mode (originate or ...

3 AT Commands CommPlete Communications Server 41 #S yyyyyy Change Setup Password yyyyyy = password Default: #SMODEMSETUP Use the #S command to enter or change the remote configuration setup password. Before you can use it, you must enter the login password using the #I command. AT#S yyyyyy enters th...

MT3334HD8 User Guide 42 CommPlete Communications Server &RP Immediate Line Probe Default: none This immediate action command initiates a retrain that makes the processor read line probe informationfor display using the L9 , L10 , and L11 commands. It is valid only when online in V.34 mode. Befor...

3 AT Commands CommPlete Communications Server 43 U n Loopback Test Modes n = 0–3 Default: None Loopback tests send data through the modem in such a way that it loops back to the terminal where it wasentered, testing all the circuits along the way. The U command selects from several loopback tests. S...

MT3334HD8 User Guide 46 CommPlete Communications Server Introduction This chapter describes the MT3334HD8’s S-registers , which are small regions of memory where modem configuration information is stored. Whereas AT commands tell a modem what to do, S-registers tell the modem how or when to do it. E...

4 S-Registers CommPlete Communications Server 47 S3 defines the carriage return character by its decimal ASCII code. The default setting is the ^M character (decimal 13), which is the code for the E NTER key on most keyboards. S3 may be set for any ASCII character. Note : If you change the S3 value,...

MT3334HD8 User Guide 48 CommPlete Communications Server S8 determines the length of the pause caused by a comma in a dialing command. The default setting is two seconds for the North American model, and four seconds for the International and U.K. models. S8 may be set for up to 255 seconds. S8 also ...

4 S-Registers CommPlete Communications Server 49 S24 PBX/CBX Disconnect Drop Time for DSR/CTS/CD Unit: 50 msRange: 0–255Default: 20 (1 second) Some PBX and CBX phone systems require the modem’s DSR, CTS, and/or CD signals to drop briefly whencalls are disconnected. The MT3334HD8’s &R , &S , ...

4 S-Registers CommPlete Communications Server 51 Reading and Assigning S-Register Values Use the S command to assign a value to an S-register and to read an S-register’s current value. To read an S-register value, in terminal mode, type S, the S-register number, and a question mark ( ? ), and press ...

MT3334HD8 User Guide 54 CommPlete Communications Server Introduction Each time you power up the MT3334HD8, it performs an automatic self-test to ensure proper operation.The MT3334HD8 also has three diagnostic tests: local analog loopback, digital loopback(remote/automatic), and digital loopback (loc...

CommPlete Communications Server 59 6 Warranty, Service, and Technical Support

MT3334HD8 User Guide 60 CommPlete Communications Server Limited Warranty Multi-Tech Systems, Inc. (“MTS”) warrants that this product will be free from defects in material orworkmanship for a period of two years from the date of purchase, or, if proof of purchase is not provided,two years from date o...

6 Warranty, Service, and Technical Support CommPlete Communications Server 61 Technical Support Multi-Tech has an excellent staff of technical support personnel available to help you get the most out ofyour Multi-Tech product. If you have any questions about the operation of this unit, please call (...

MT3334HD8 User Guide 62 CommPlete Communications Server The Multi-Tech BBS Multi-Tech maintains a bulletin board system (BBS) for its customers. Information available from the BBSincludes new product information, product upgrade data, and problem-solving tips. There is also a -message service that l...

6 Warranty, Service, and Technical Support CommPlete Communications Server 63 6. Select a file transfer protocol by typing the indicated letter, such as Z for Zmodem (the recommended protocol). 7. If you select Zmodem, the file will transfer automatically. If you select another protocol, you mayhave...

MT3334HD8 User Guide 64 CommPlete Communications Server About the Internet Multi-Tech is a commercial provider on the Internet, and we retrieve e-mail messages from the followingmailboxes on a periodic basis: [email protected] Technical Support [email protected] Marketing Dept. mtssales@mul...

6 Warranty, Service, and Technical Support CommPlete Communications Server 65 Upgrading the MT3334HD8 Firmware The MT3334HD8’s firmware is contained in a flash PROM. At various times, Multi-Tech may addenhancements and/or fixes to this firmware. The flash technology used in the MT3334HD8 allows thes...

MT3334HD8 User Guide 68 CommPlete Communications Server Appendix A ASCII Conversion Chart CTRL CODE HEX DEC CODE HEX DEC CODE HEX DEC CODE HEX DEC @ NUL 00 0 SP 20 32 @ 40 64 ` 60 96 A SOH 01 1 ! 21 33 A 41 65 a 61 97 B STX 02 2 " 22 34 B 42 66 b 62 98 C ETX 03 3 # 23 35 C 43 67 c 63 99 D EOT 04...

B Dial Pulses and Tones CommPlete Communications Server 69 Appendix B Dial Pulses and Tones Dial Pulses When you pulse dial, as when you make a call with a rotary dial telephone, your telephone or modemgenerates codes in the form of pulses that simulate the opening and closing of old-fashioned elect...

C Result Code Summary CommPlete Communications Server 71 Appendix C Result Code Summary Multi-Tech Result Codes (&Q0) Terse Verbose Definition 0 OK Command was executed without error; ready for nextcommand. 1 CONNECT Modem has detected carrier and gone online. 2 RING Modem has detected ring caus...

D S-Register Summary CommPlete Communications Server 73 Appendix D S-Register Summary Register Unit Range Default Description S0 1 ring 0, 1–255 1 Sets the number of rings until the modemanswers. ATS0=0 disables auto answer completely. S1 1 ring 0–255 0 Counts the rings that have occurred. S2 decima...

E AT Command Summary CommPlete Communications Server 75 Appendix E AT Command Summary Command Values Description AT n/a Attention Code The attention code precedes all command linesexcept A/ , A: and escape codes. RETURN n/a RETURN Key Press the RETURN (ENTER) key to execute mostcommands. A n/a Force...

F Remote Configuration CommPlete Communications Server 85 Appendix F Remote Configuration Introduction Remote configuration, a feature of Multi-Tech’s MT3334HD8 modems, is a network management tool thatallows you to configure modems anywhere in your network from one location. With password-protected...

MT3334HD8 User Guide 86 CommPlete Communications Server Changing the Passwords 1. Establish a remote configuration link with the remote modem as described above. 2. Type AT#IMULTI-TECH (or AT#I xxxxxx if you have replaced the MULTI-TECH password with xxxxxx ) and press E NTER . The modem responds wi...