Multitech MT3334HD8 manual

MT3334HD8 Modem User Guide[...]

MT3334HD8 User Guide P/N 82063701, Revi sion B Copyri ght © 1997 by Multi-T ech Syste ms, Inc. All right s reserved. This publicat ion may not be repr oduced, in whole or in par t, without pri or expressed writte n permissi on from Multi-Tech Syst ems, Inc. Multi-Tech Syst ems, Inc. makes no represe ntation o r warranti es with r espect to t he co[...]

CommPlete Communic ations Se rver iii Federal Communic ations Commiss ion S t ateme nt This equipment has b een tested and fou nd to comply with the limits for a Class A d igital device, pursua nt to Part 15 of the FCC Rules . These limits are desig ned to provide reasona ble protection aga inst harmful interference when the equipment is operated i[...]

iv CommPlete Communic ations Se rver FCC Fax W arning The Te lepho ne Consum er P rote ction Act of 1991 m akes it un lawful f or any perso n to use a co mpute r or other e lectr onic device to send any me ssage via a tel ephone fax machine unl ess such message cl early contains in a ma rgin at the top or bottom of ea ch page or the first pa ge of [...]

CommPlete Communic ations Se rver v T able of Content s 1 Introduction Introduction ...................................................................................................................................................... 2 LED Indicators ..................................................................................................[...]

vi CommPlete Communic ations Se rver 5 Testing the MT3334HD8 Introduction ................................................................................................................... .................................. 54 Local Analog Loopback Test (V.54 Loop 3) .................................................................................[...]

CommPlete Communic ations Se rver 1 1 Introduction[...]

MT 3334HD8 User Guid e 2 CommPlete Communic ations Se rver Introduction The Mul ti-Tech MT3334HD8 is a hi gh speed, h igh densi ty mo dem card f or t he Co mmPlete Commun icatio ns Server . Each MT3334HD8 car d contai ns eight integr ated 33,600 bp s modem s. Each modem on the MT3334HD8 card can be confi gured in depende ntly of the other s via the[...]

1 Introduction CommPlete Communic ations Se rver 3 Chapter 2 Installat ion This chap ter de scribes h ow to in stall the MT3334H D8 into t he CC9600 chassis. Chapter 3 Command Mode Operat ion This chap ter p rovide s an intr oducti on to MT 3334HD8 comm and mode f undamen tals, fo llo wed by a detailed explanation of ea ch AT command, providing exa[...]

MT 3334HD8 User Guid e 4 CommPlete Communic ations Se rver T echnical Specifications Model Number MT3334HD8 Data Rates (Modem) Eight indep endent modem s (Modem A, B , C, D, E, F, G, H), each o perat ing at 33,600, 31,200, 28,800, 26,400, 24,000, 21,600, 19 , 200, 16,800, 14,400, 12,000, 9600, 4800, 2400, 1200, or 0-300 bps Data Rates (Fax) 14,400,[...]

1 Introduction CommPlete Communic ations Se rver 5 (2400 & 1200 bps) Recei ve answer: 1200 Hz Carrier Frequencie s: Bell 103/113 (300 bps) Transmit origina te: Receive originate: Transmit answer: Receive answe r: 1270 Hz mar k 1070 Hz space 2225 Hz mar k 2025 Hz space 2225 Hz mar k 2025 Hz space 1270 Hz mar k 1070 Hz space Carrier Frequencie s:[...]

MT 3334HD8 User Guid e 6 CommPlete Communic ations Se rver Pow er Requirements 5 VDC at 0.95 A ±16 VDC at 0.1 A Power Consumption Approximately 6 watts Dimensions 23.3 × 2.3 × 29.2 cm (9.2 × 0.9 × 11.5 in.) H × W × D Weight 1.1Kg (2.5 lb.) Limited Warr anty Two years Fuses F1 (+5 V), F2 (-16 V), F3 (+16 V)[...]

CommPlete Communic ations Se rver 7 2 Inst allation[...]

MT 3334HD8 User Guid e 8 CommPlete Communic ations Se rver Introduction This chap ter de scribes h ow to in stall the MT3334H D8 modem card int o a Co mmPlete Communication Server CC9600 chassis. Thi s equipm ent sho uld be in stall ed only by a qualif ied ser vice per son. The MT3334H D8 assembly consist s of a high -densit y modem card and a f ro[...]

2 Installatio n CommPlete Communic ations Se rver 9 Pre-Inst allatio n Notes Warning: In terconnection direc tly, or by wa y of other appara tus, of ports marked “ SAFETY WARNING see instructions for u se ” with ports marked or not s o marked may prod uce haz ardous c onditions on the network. Advice should be obtained from a competent engineer[...]

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CommPlete Communic ations Se rver 11 3 A T Commands[...]

MT 3334HD8 User Guid e 12 CommPlete Communic ations Se rver W orking w ith A T Commands The MT3334H D8 ’ s modems ar e controll ed by instr uctions call ed AT command s , so called because th e attent ion char acters AT precede each command or command string (sequence of commands). You ca n send command s to the modem from your keyboa rd while in[...]

3 A T Commands CommPlete Communic ations Se rver 13 A parameter after a command (0, 1, 2, etc. ) tells the modem which option to us e. If you do not specify a parameter, the mod em assu mes the 0 (z ero) option. E , for example, is the s ame as E0 . You can issue several commands on a single line (a command string) as long as the line does not exce[...]

MT 3334HD8 User Guid e 14 CommPlete Communic ations Se rver Table 1. AT Co mmands by Funct ion Topic Command Description Page Dialing Action D Dial 16 A: Continuous redial H On-hook/off-hook Dial Modifiers P Pulse dialing 16 T Tone dialing W W ait for new dial tone R Reverse originate/answ er mode , Dialing pause : Continuous redial ; Return to com[...]

3 A T Commands CommPlete Communic ations Se rver 15 Error Correction & &E0 Non-error correction mode 31 Data Compression &E1 Auto-reliable mode &E2 Reliable mode &E14 Data compression disabled &E15 Data compression enabled #L V.42 error correction modes $E V.42 error correction at 300 bps $A Auto-reliable buffering $F Auto-r[...]

MT 3334HD8 User Guid e 16 CommPlete Communic ations Se rver Dialing Commands Dialin g comman ds are used t o dial an d to hang up . Ds Dial s = phone number Default: none The letter D in a command c auses the modem to dial the telephone numb er immediately following it. For example, if you type ATD5551212<CR> , the m odem di als th e numbe r [...]

3 A T Commands CommPlete Communic ations Se rver 17 pauses in the dial sequence, automati c redials i f a number i s busy, and reverti ng to comm and mode or switching to a nswer mode a fter dialing. P, T Pulse or Tone Dial ing Default: P The MT3334H D8 ’ s modems can dial numbers by usi ng pulse diali ng, tone diali ng, or a combi nation of both[...]

MT 3334HD8 User Guid e 18 CommPlete Communic ations Se rver Rn Reverse Originate/ A nsw er Mode n = 0 or 1 Default: R0 The R comman d lets you rev erse the modem ’ s mode of opera tion from originate to an swer, or from answer to orig inate; for example, if you need the modem to an swer the phone but then g o into originate mode. R (with no numbe[...]

3 A T Commands CommPlete Communic ations Se rver 19 @ Q uiet Answer Use the @ command to access a sy stem t hat does n ot pr ovide a dial tone . The @ command causes the modem to wait before proces sing the next chara cter in the dialing s tring. The wait is for one or more rings back foll owed by fi ve seconds of si lence. For example, ATDT5551212[...]

MT 3334HD8 User Guid e 20 CommPlete Communic ations Se rver You can au tomatically dia l a telephone number that is stored in the modem ’ s number memory by typing ATN n , where n = 0 or 1. For exam ple, y ou can dial a number stor ed at N0 by t yping ATN0 in terminal mode and pressing E NTER . Warning: Do not inclu de the letter D in this comman[...]

3 A T Commands CommPlete Communic ations Se rver 21 &Fn Load Default Configurati on n = 0, 8, or 9 Default: &F8 MT3334HD8 mode ms stor e facto ry def ault AT com mand set tings and S-r egiste r value s in read-o nly memo ry (ROM); t hey stor e your custom AT command an d S-regist er value s in nonvo latil e rando m access memor y (NVRAM). T[...]

MT 3334HD8 User Guid e 22 CommPlete Communic ations Se rver En Echo Command Mode Characters n = 0 or 1 Default: E1 Normally, wh en you type commands on the keyb oard, the modem echoes the characters ba ck to the computer or terminal, which d isplays them on the monitor. U se the E command to turn this feature off and on. E0 disables the echo. E1 en[...]

3 A T Commands CommPlete Communic ations Se rver 23 &Qn Result Codes ( Multi -Tech or Standard A T) n = 0 or 1 Default: &Q0 The MT3334HD8 gi ves you a cho ice betwe en Mult i-Tech r esult co des and standar d AT comm and set responses. Mul ti-Tech r esult code s give you mor e info rmati on, but some dat acomm pr ograms may not be able to u[...]

MT 3334HD8 User Guid e 24 CommPlete Communic ations Se rver &A n Answerback n = 0 or 1 Default: &A0 The &A command co ntro ls the MT3334HD8 ’ s answer back feat ure. Answer backs are used in so me onl ine real ty appl icati ons and el sewher e as a securi ty m easure. T he &A command enables a modem to return a messag e to an iden[...]

3 A T Commands CommPlete Communic ations Se rver 25 %DC n A T Command Control n = 0 or 1 Default: %DC0 The %DC command allows you t o disable the m odem ’ s abi lity to respond to AT commands. It can be use d with auto an swer applica tions in which no call origina tion is required, w ith some UNIX a pplications, a nd with other applications tha [...]

MT 3334HD8 User Guid e 26 CommPlete Communic ations Se rver #F n Fallback Modes n = 0, 1, or 2 Default: #F2 The #F command controls w hether the modem will fa ll back to a lower s peed beca use of a n unac ceptab le error rate. If line conditions d eteriorate, the modem ha s the ability to fa ll back from its orig inal speed to the ne xt lo wer spe[...]

3 A T Commands CommPlete Communic ations Se rver 27 &P1 sets a pul se dial rati o of 67 m s break t o 33 ms m ake. &RD n Square Wave Ring Detect n = 0 or 1 Default: &RD0 (U.K. and International models) &RD1 (North American model s) The ring back sou nd that you hea r when you dial a nu mber is genera ted at the local telephone offic[...]

MT 3334HD8 User Guid e 28 CommPlete Communic ations Se rver Y n Long Space Disconnect n = 0 or 1 Default: Y0 When two modems a re connected in reliable mode, a link disconnect reques t packet is sent to request a disconnect. In non-error corr ection mode, there is no “ polite ” way to request a disconnect. As a r esult, some “ garb age ” ma[...]

3 A T Commands CommPlete Communic ations Se rver 29 RS-232 Interface Command s These co mmands de fine h ow an MT3334HD8 m odem wi ll use and resp ond to st andard RS-232 si gnals. &C n Carrier Detect Control n = 0, 1, 2, or 4 Default: &C1 The &C command lets yo u contr ol th e Carri er Det ect (CD) sign al on th e RS-232/V.24 int erfac[...]

MT 3334HD8 User Guid e 30 CommPlete Communic ations Se rver &R n Clear to Send Control n = 0, 1, or 2 Default: &R1 The &R command l ets yo u contr ol th e state of the Clear to Send (CT S) signal o n pin 5 of the R S-232/V.24 interface. Norma lly, CTS follow s RTS when the mod em is online. You ha ve three choices. You ca n force the si[...]

3 A T Commands CommPlete Communic ations Se rver 31 Error Correction and Data Compression Command s You can configure a modem to any of three different V.42 modes of operation (each mode can be with or without compress ion). They are the non -error correction, a uto-reliab le, and relia ble modes. You can a lso turn data compress ion on or off. &am[...]

MT 3334HD8 User Guid e 32 CommPlete Communic ations Se rver $E n V.42 Error Correction at 300 bps n = 0 or 1 Default: $E0 At 300 bps, err or cor rect ion is no t norm ally used. $E0 disables 300 bp s/V.42 erro r cor recti on alto gethe r. $E1 enables t he mo dem to functi on at 300 bps i n non-er ror corre ction ( &E0 ), auto-reliable ( &E1[...]

3 A T Commands CommPlete Communic ations Se rver 33 $R n Retransmit Count n = 0 or 1 Default: $R0 If errors are receiv ed during a reliable c onnection, the mod em re-sends the block of data that conta ined an error. If another error occ urs, it re- sends the b lock aga in. The modem cou nts the number of times that a data block is re-sent . $R0 ca[...]

MT 3334HD8 User Guid e 34 CommPlete Communic ations Se rver $MB n Modem Baud Rate n = speed in bits per second Default: $MB33600 The $MB command s ets a mode m ’ s init ial tr ansmissi on spee d for origi nate m ode. In V.32 m ode (9600 bps), it also sets the transmi ssion speed for answer mode. Wi th speed co nversion on, thi s transmi ssion spe[...]

3 A T Commands CommPlete Communic ations Se rver 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 (factor y defaul t) Immediate A ction Commands Use these comma nds to get information a bout AT commands and the current s ettings of[...]

MT 3334HD8 User Guid e 36 CommPlete Communic ations Se rver L8 List Onl ine Diagnost ics Default: none The L8 command d isplays the modem ’ s onlin e status. Y ou can pri nt thi s display and use it as a m odem status re port or as diagno stic i nform ation (such as when cal ling Te chnical Support ). If you type +++ATL8 with the mo dem online, t[...]

3 A T Commands CommPlete Communic ations Se rver 37 $EB0 enables a 10-bi t for mat It automat icall y detect s parit y when an AT command is issued. $EB1 enables an 11-bit fo rmat . &E3 F low Control Dis able The &E3 command complet ely disabl es data flow contr ol init iated by the mo dem. &E4 Hardw are Flow Control Factory default. Th[...]

MT 3334HD8 User Guid e 38 CommPlete Communic ations Se rver When two modems are connected in non-err or corre ction mode, XON/XOFF flow control can be used as a complement to XON/ XOFF pacing. &E10 disab les non-error c orrection mode flow control. &E11 enables non-error correc tion mode flow c ontrol. &E n Pacing (Computer-I nitiat ed [...]

3 A T Commands CommPlete Communic ations Se rver 39 Escape Sequ ences Escape sequences a re also known as esca pe codes. They are used to caus e the modem to enter command mode from online mode without disconnecting the call. There a re two local escape s equences used by the modem, +++AT<CR> and <BREAK>AT<CR> , and one remote esc[...]

MT 3334HD8 User Guid e 40 CommPlete Communic ations Se rver O Go Back Onli ne You can use the O command to bring the modem ou t of command mod e and ba ck into online mode. The O command reverses the result of entering the esca pe code. The O command bring s the modem into whicheve r onl ine m ode (or iginate or answe r) that it was in prio r to e [...]

3 A T Commands CommPlete Communic ations Se rver 41 #S yyyyyy Change Setup Passw ord yyyyyy = password Default: #SMODEMSETUP Use the #S command to ente r or change t he rem ote conf iguration se tup password. B efore yo u can use it, you must en ter th e login passwo rd using t he #I command. AT#S yyyyyy enters t he curre nt rem ote confi guration [...]

MT 3334HD8 User Guid e 42 CommPlete Communic ations Se rver &RP Immediat e Line Probe Default: none This i mmedi ate acti on com mand in itiat es a ret rain t hat mak es the p roce ssor re ad line prob e info rmat ion for display u sing the L9 , L10 , and L11 commands. It i s valid on ly when onli ne in V.34 m ode. Bef ore issuing the c ommand,[...]

3 A T Commands CommPlete Communic ations Se rver 43 U n Loopback Test Modes n = 0 – 3 Default: No ne Loopback tests s end data through the modem in su ch a way tha t it loops back to the termina l where it was entered, testing a ll the circuits along the w ay. The U command select s from several l oopback t ests. See Chapter 5, “ Test ing t he [...]

MT 3334HD8 User Guid e 44 CommPlete Communic ations Se rver[...]

CommPlete Communic ations Se rver 45 4 S-Registers[...]

MT 3334HD8 User Guid e 46 CommPlete Communic ations Se rver Introduction This chap ter descr ibes t he MT3334HD8 ’ s S-regist ers , which are sm all r egions of memor y where modem configuration information is stored. W hereas AT command s tell a modem what to do, S- registers tell the modem how or when to do it. Each S- register has a name that [...]

4 S-Regist ers CommPlete Communic ations Se rver 47 S3 defines the carriag e return character b y its decimal AS CII code. The defa ult setting is the ^ M charac ter (decimal 13), which is the code for the E NTER key on most keyboards. S3 may b e set for any AS CII character . Note : If you change the S3 value, you must make corr esponding changes [...]

MT 3334HD8 User Guid e 48 CommPlete Communic ations Se rver S8 determines the length of the pau se caused by a comma in a dialing command . The default s etting is two seconds for the N orth American model, a nd four seconds for the International a nd U.K. models. S8 may be set fo r up to 255 seconds. S8 also defines the leng th of time the modem w[...]

4 S-Regist ers CommPlete Communic ations Se rver 49 S24 PBX/CBX Disconnect Drop Time for DSR/CTS/CD Unit: 50 m s Range: 0 – 255 Default : 20 (1 second) Some PB X and CBX phone systems re quire th e modem ’ s DSR, CTS, and/o r CD signal s to dro p brie fly wh en calls ar e disconn ected. The MT3334HD8 ’ s &R , &S , and &C commands [...]

MT 3334HD8 User Guid e 50 CommPlete Communic ations Se rver S36 sets the time between when DTR g oes inactive an d when the modem goes off-hook. The DTR busy -out feature is disabled w hen S36 is set to 0. Normally, when the DTR s ignal from the computer goes ina ctive, the modem goes on-hook after a time that is set b y S25 . If S36 is set for a n[...]

4 S-Regist ers CommPlete Communic ations Se rver 51 Reading and A ssigning S-Registe r V alues Use the S command t o assign a val ue to an S-regist er and t o read an S-regist er ’ s current valu e. To re ad an S-regi ster val ue, in term inal mode, t ype S, the S-register number, and a question ma rk ( ? ), and press E NTER . For example, to dis[...]

MT 3334HD8 User Guid e 52 CommPlete Communic ations Se rver The &W0 (or &W ) command stores all current AT command and S-register values into nonvolatile random access m emor y (NVRAM) and confi gures the modem so that it reads your custom se ttings in NVRAM w hen the modem is turned on or w hen it is reset with the Z command. (The &F r[...]

CommPlete Communic ations Se rver 53 5 T esting the MT3334HD8[...]

MT 3334HD8 User Guid e 54 CommPlete Communic ations Se rver Introduction Each tim e you p ower up the MT3334H D8, it per for ms an auto matic se lf-te st to e nsure p rope r oper atio n. The MT3334H D8 also has th ree di agnostic tests: l ocal anal og loo pback, digi tal lo opback (remote/auto matic), and digit al loopback (local /manual). These IT[...]

5 Testin g the M T 3334HD8 CommPlete Communic ations Se rver 55 3. Note that the CD LED is on. If you ’ re set fo r 14,400 bps or higher , the Sp eed LED sh ould be o n. If th e CD LED is not on, there is a defect in your modem. 4. Enter characters from your keyb oard. For this tes t, typing multiple upperca se U cha racters is a good way to send[...]

MT 3334HD8 User Guid e 56 CommPlete Communic ations Se rver 2. Open your communications s oftware and g o into terminal mode. Type AT and press E NTER ; you should get an OK message. Type AT&E0<C R> to disab le error correction. 3. Dial the remote modem and establish your online connection. 4. Type the escape sequence (+++AT<CR> or [...]

5 Testin g the M T 3334HD8 CommPlete Communic ations Se rver 57 Local Digit al Loopback T est (V .54 Loop 2) This test is identica l to the remote digital loopba ck test with one exception. Instea d of using you r modem to signal a r emote modem to place itsel f in digit al loopback mo de, your modem i s placed in digi tal loopback mode w hile the [...]

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CommPlete Communic ations Se rver 59 6 W arranty , Service, and T echnical Support[...]

MT 3334HD8 User Guid e 60 CommPlete Communic ations Se rver Limited W arranty Multi-T ech Syste ms, Inc. ( “ MT S ” ) warra nts that this prod uct will b e free from defects in materia l or workmanship for a period of two years from the date of purcha se, or, if proof of purchase is not prov ided, two years from da te of shipment. MTS MAKES NO [...]

6 Warra nty, S ervice, a nd Technical Support CommPlete Communic ations Se rver 61 T echnical Support Multi-Tec h has a n excellent sta ff of technical s upport personnel a vaila ble to help you get the mos t out of your Mul ti-Te ch product . If yo u have any quest ions about the o perat ion of this uni t, ple ase call (800) 972- 2439 (USA and Can[...]

MT 3334HD8 User Guid e 62 CommPlete Communic ations Se rver The Multi-T ech BBS Multi-Tech m aintains a bul leti n board system (BBS) fo r its custo mers. Inf ormat ion availabl e from the B BS includes new prod uct information, prod uct upgra de data , and prob lem-solving tips. There is als o a - messag e service that lets you request a dditional[...]

6 Warranty, S ervice, and Technic al Support CommPlete Communic ations Se rver 63 6. Select a file trans fer protocol by typing the indica ted letter, such a s Z for Zmodem (the recommended protocol). 7. If you selec t Zmodem, the file wi ll transfer a utomatica lly. If you select an other protocol, you ma y have to initiate the tra nsfer yourself.[...]

MT 3334HD8 User Guid e 64 CommPlete Communic ations Se rver A bout the Internet Multi-Tech is a commercial provid er on the Internet, and w e retrieve e-ma il messag es from the following mailbo xes on a pe riodic basis: tsupport@multitech.com Technical Support mtsmktg@multitec h.com Market ing Dept . mtssale s@multit ech.com Sales Dep t. internati[...]

6 Warranty, S ervice, and Technic al Support CommPlete Communic ations Se rver 65 Upgradin g the MT3334HD8 F irmw are The MT3334H D8 ’ s firm ware is cont ained in a f lash PROM. At various ti mes, Mult i-Tech may add enhance ment s and/or f ixes t o thi s fir mware. T he fl ash tech nolo gy used in t he MT3334H D8 allows t hese upgrades to be lo[...]

MT 3334HD8 User Guid e 66 CommPlete Communic ations Se rver[...]

CommPlete Communic ations Se rver 67 Appendixes[...]

MT 3334HD8 User Guid e 68 CommPlete Communic ations Se rver Appendix A ASCII Conversion Chart CTRL CODE HEX DEC CODE HEX DEC CODE HEX DE C CODE HEX DE C @ 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 4 $ 24 36 D 44 68 d 64 100 E ENQ 05 5 % 25[...]

B Dial Pulses and T ones CommPlete Communic ations Se rver 69 Appendix B Dial Pulses and T ones Dial Pulses When you p ulse di al, as when y ou make a cal l wit h a rot ary dial tel ephone , your t elep hone or mode m generates cod es in the form of pulses tha t simulate the opening and clos ing of old-fa shioned electric relays, or switches. The n[...]

MT 3334HD8 User Guid e 70 CommPlete Communic ations Se rver Figure B -2. Standar d DTMF fre quencie s The ex tended DT MF character s (A, B, C, D) are the hi gh-end fr equenci es (1633 Hz) defi ned on som e telephone sets with a fourth vertical column of bu ttons. This fourth colu mn provides for extended PBX control functions. The ac tual function[...]

C Result Code Summary CommPlete Communic ations Se rver 71 Appendix C Result Code Summary Multi-T ech Result Codes (&Q0) Terse Verbose Definition 0O K Command was ex ecuted without error; ready for nex t command. 1 CONNECT Modem has detected carrier and gone online. 2 RING Modem has detected ring caused by incoming call. 3 NO CARRIER No carrier[...]

MT 3334HD8 User Guid e 72 CommPlete Communic ations Se rver LAP-M Reliable Mode. If the modem conn ects us ing LAP-M error correction, the word LAPM or letter L is added to the CONNECT response s as foll ows: 1L Connect LAPM 5L Connect 1200 LAPM 9L Connect 2400 LAPM 10L Connect 4800 LAPM 12L Connect 9600 LAPM 13L Connect 14400 LAPM 19L CONNECT 1920[...]

D S-Register Summary CommPlete Communic ations Se rver 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 modem answers. ATS0 =0 disables auto answer completely. S1 1 ring 0–255 0 Counts the rings that have occurred. S2 decimal 0–127 43 (+) Sets ASCII code for the e[...]

MT 3334HD8 User Guid e 74 CommPlete Communic ations Se rver Register Unit Range Default Description S43 decimal 33, 31, 28, 26, 24, 21, 19, 16, 14, 12, 96, or 48 0 Sets fixed V.34 connect speed. 28 = 28800 bps; 26 = 26400 bps;. . . 48 = 4800 bps. 0 default disables this feature. S48 decimal 33, 31, 28, 26, 24, 21, 19, 16, 14, 12, 96, or 48 0 Sets m[...]

E AT Command Summary CommPlete Communic ations Se rver 75 Appendix E A T Command Summary Command Values Description AT n/a Attention Code The attention code precedes all command lines except A/ , A: and escape codes. RETURN n/a RETURN Key Press the RETURN (ENTER) key to execute mos t commands. A n/a Force Answer Mode Answer call immediately without[...]

MT 3334HD8 User Guid e 76 CommPlete Communic ations Se rver Command Values Description $BA n n = 0 or 1 Baud Adjust *** $B A0 Set baud adjust off, speed conversion on. (Serial port speed is independent of modem data rate.) $BA1 Set baud adjust on, speed conversion off. (Serial port speed is same as modem data rate.) &C n n = 0, 1, 2, Car rier D[...]

E AT Command Summary CommPlete Communic ations Se rver 77 Command Values Description >DT n n = 0 or 1 DTMF De tection *** >DT0 Disable DTMF detection. >DT1 Enable DTM F detection when off-hook. E n n = 0 or 1 Echo Command Mode Characters E 0 Do not echo command mode characters. *** E1 Do echo command mode characters. &E n n = 0–15 V.[...]

MT 3334HD8 User Guid e 78 CommPlete Communic ations Se rver Command Values Description %E n n = 0–5 Escape Sequence Options %E0 Modem won’t escape. *** %E1 +++ method %E2 Break method. %E3 Either +++ or break methods. *** %E4 No OK response to +++. %E5 OK response to +++. &F n n = 0, 8, or 9 Load Default Configuration &F0 Load factory d[...]

E AT Command Summary CommPlete Communic ations Se rver 79 Command Values Description I n n = 0, 1, 2, Inquire Product Codes or 5 I 0 Request modem ID #. I1 Request firmware rev ision #. I2 Request modem description. I5 Request DSP version. #I x x = password Enter Login Passw ord Password is case sensitiv e. #I= x x = password Store Login Passw ord [...]

MT 3334HD8 User Guid e 80 CommPlete Communic ations Se rver Command Values Description $MB n n = speed Modem Baud Rate $MB75 Select ITU-T V.23 mode. $MB300 Select 300 bps on line. $MB1200 Select 1200 bps on line. $MB2400 Select 2400 bps on line. $MB4800 Select 4800 bps on line. $MB7200 Select 7200 bps on line. $MB9600 Select 9600 bps on line. $MB12[...]

E AT Command Summary CommPlete Communic ations Se rver 81 Command Values Description &R n n = 0, 1, or 2 Clear to Send Control &R0 Let CTS state follow RTS state w hen online. *** &R1 Force CTS high (on). &R2 Let CTS drop on disconnect for time set by S24, then go high again. &RA n n = 0 or 1 Asy mmetric Bit Rate *** &RA0 En[...]

MT 3334HD8 User Guid e 82 CommPlete Communic ations Se rver Command Values Description &SF n n = 0 or 1 DSR/CD Interac tion Control *** &SF0 Select DSR to follow CD. &SF1 Select D SR to be independent. $SB n n = speed Serial Port Baud Rate Baud Adjust $SB300 Select 300 bps at serial port. ($BA) must $SB1200 Select 1200 bps at serial por[...]

E AT Command Summary CommPlete Communic ations Se rver 83 Command Values Description #V n n = 0 or 1 V.32terbo Handshake *** #V0 Enable V.32terbo tones in answer mode. #V1 Disable V.32terbo tones in answer mode. W In dialing Wait for New Dial Tone command Causes modem to w ait for new dial tone. ( X2 or X4 must be selected.) &W n n = 0 or 1 Sto[...]

MT 3334HD8 User Guid e 84 CommPlete Communic ations Se rver Command Values Description ; At end of dial command Return to Command Mode After Dialing Semi-colon; causes immediate return to command mode after dialing. ! In dial command Flash On-Hook Exclamation; causes modem to flash on-hook. @ In dial command Quiet Answer Causes modem to wait for a [...]

F Remote Configuration CommPlete Communic ations Se rver 85 Appendix F Remote Configuration Introduction Remo te conf igurati on, a fe ature o f Multi -Tech ’ s MT 3334HD8 modem s, is a ne twork managem ent t ool t hat allows yo u to configur e modem s anywhere in yo ur networ k from one lo cation. Wit h password-pro tected remote configuration, [...]

MT 3334HD8 User Guid e 86 CommPlete Communic ations Se rver Changing the Passw ords 1. Establish a remote configuration link with the remote mod em as desc ribed abov e. 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 re sponds with OK if the login passwor d is corr ect,[...]

CommPlete Communic ations Se rver 87 Index[...]

MT 3334HD8 User Guid e 88 CommPlete Communic ations Se rver A abort t ime r, 12, 19, 47, 51 Answer com mand, 12, 40 answer m ode, 18, 34, 40 Answer Tone com mand, 24 Answerback com mand, 24 answeri ng a call , 40, 51 ASCII code, 68 Asymmetric Bit Rate command , 28 Asynchro nous Word L ength com mand, 37 AT Comm and Contro l comm and, 12, 25 AT comm[...]

Index CommPlete Communic ations Se rver 89 %E, 39 %F, 28 >DT, 25 *H, 26, 51 ! (exclama tion mark), 18 , (comma), 18, 48 : (colon), 16, 18 ; (semicolon), 18 @, 19 +++AT<CR>, 39 <BREAK >AT<CR>, 39 auto answer , 12, 33, 46, 51 disablin g, 46 Auto Speed Detecti on comm and, 24 Auto-Reliable Bu ffering command, 3 2 Auto-Rel iable Fa[...]

MT 3334HD8 User Guid e 90 CommPlete Communic ations Se rver busy-in time , 50 busy-out tim e, 50 control of, 29 disconnect drop ti me, 49 E Echo Canceler Frequency Offset Compensation comma nd, 28 Echo Command Mode Cha racters c ommand, 22 ENQ/A CK Pacin g comma nd, 38 error correction at 300 bps, 32 automatic, 31 disablin g, 31 select ing, 31, 32 [...]

Index CommPlete Communic ations Se rver 91 O On-Hook/Off-Hook command, 1 6 onlin e connect ion com mands, 24 onli ne mode , 12, 40, 46, 54, 56 origi nate m ode, 18, 34, 54 origi natin g a call, 31, 34 out-of-band escape s equence, 39 out-of-service state (OOS ), 2 out-of -service t ime, 26, 51 P pacing, 36, 37, 38 enable/di sable, 38 ENQ/ACK, 38 Pa[...]

MT 3334HD8 User Guid e 92 CommPlete Communic ations Se rver S48, 50 S94, 26, 51 start bit, 3 7 stop bi t, 37 Store Configur atio n comm and, 20, 21, 22, 52 Store Phone Number co mmand, 19, 20 stori ng a confi gurati on, 20, 51 T technical specifications, 4 techni cal suppor t, 61, 63 term inal m ode, 56 testi ng, 42, 55, 56, 57 commands , 42 loop b[...]

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P/N 82063701[...]