Multitech MT2456SMI22 manual

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Índice do manual

  • Página 1

    SocketModem Ô Embedded Modem MT2456SMI–22 Serial I nterface Developer’s Guide[...]

  • Página 2

    Copyright Multi-Tech Sys tems , Inc. MT2456SM I-22 Soc ketModem D eveloper’s Guide 2 SocketModem Ô MT2456SMI – 22 Developer’s Guide PN S000281A , Version A Copyright This public ation may not be rep roduce d, in w hole or in p ar t, withou t prior ex pressed w ritten perm ission fro m Multi- Tech Sy stems, In c. All r ights re served. Copyri[...]

  • Página 3

    Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 3 Contents Chapter 1 – Product D escription and Specificat ions ............................................................................. .................... 4 Product Descrip tion ......................................................................................[...]

  • Página 4

    Chapter 1 – Produ ct Descrip tion and Specifi cations Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 4 Chapter 1 – P roduct Descr ipt ion and Specif icat ions The Multi-T ech SocketModem s upports analog d ata modem oper ation w i th V.22bis Fast Con nect, V.42bis dat a compressi on, and V. 80 synchro nous access mo[...]

  • Página 5

    Chapter 1 – Produ ct Descrip tion and Specifi cations Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 5 Technical Specificat ions The Socke tModem me ets the follow ing specifi cations: Client-to-Server Data Rates V.22 bis Client-to-Client Data Rates 2400, 1200, 0-300 bps Data Format Serial, asyn chronous Modem Compati[...]

  • Página 6

    Chapter 2 - M echani cal Spe cificati ons Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 6 Chapter 2 – Mechanic al Specif icat ions Physical Dimensions Figure 2–1. Max imum Component Height[...]

  • Página 7

    Chapter 2 - M echani cal Spe cificati ons Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 7 Pin Configurations The MT2456SMI SocketModem with a serial interfa ce use a 16-pi n inter face to prov ide an on-board DAA w ith tip and ring conn ections, audi o circuit for call-pr ogress monitor ing and serial interface v ia lo[...]

  • Página 8

    Chapter 2 - M echani cal Spe cificati ons Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 8 36 –RI O Ring Indicate. –R I output ON (low ) indicates th e presence of an O N segment of a ring sig nal on the telep hone line. The mode m will not go off-ho ok when – RI is active; the modem wait s for –RI to go inactiv[...]

  • Página 9

    Chapter 3 - Ele ctric al Character isti cs Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 9 Chapter 3 – Electr ical Characterist ics 3.3V and 5V Serial SocketM odem 3.3V DC Chara cteristic s (TA = 0°C to 70°C; VDD = 3.3 V ± 0.3 V) VDDMAX = 3.6 V 5V DC Chara cteristic s (TA = 0°C to 50°C; VDD = 5 V ± 0.25 V) VDDM[...]

  • Página 10

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 10 Chapter 4 - V .22bis Comm ands , S- R eg ister s , and R e sult Codes The V.22bis C ommands are cov ered in the follow ing order in this c hapter: Generic Modem Control Com mands Z Soft Reset and R estore Profi l e +VCID Caller ID +VRID Rep[...]

  • Página 11

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 11 Error Control and Data Compression Commands +ESR Select Repe at B T ransmit Break to Remot e K Break C ontrol Synchronous A ccess Mode Commands +ESA Configure Sy nchrono us Access Submode +ITF Transmit Flow Control Threshold s Fast Connec[...]

  • Página 12

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 12 V.22bis Generic Modem Control Commands Z Soft Reset and Rest ore Profile This comm and causes the m odem to perform a sof t reset and resto re (recall) the fa ctory default confi guration (profile). If no <v alue> is speci fied, zero [...]

  • Página 13

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 13 2 Selects r eliable (error- correction) mode. The mode m will fir st attempt a LAPM connection and then a n MNP connect ion. Failure to make a re liable connectio n results in the modem hanging u p. (Forces &Q5, S3 6=4, and S48=7.) 3 Se[...]

  • Página 14

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 14 &F Restore Factory C onfiguration (Profile) The modem l oads the factory default c onfiguration (prof ile). The factory defa ults are identi fied for each com m and and in the S-Paramete r descriptions. A c onfiguration (prof ile) consi[...]

  • Página 15

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 15 V.22bis DTE/DCE-Modem Interface commands The parameter s defined in thi s section co ntrol the oper ation of the inter face between the D TE/DCE and mod em. E Command Echo The modem e nables or disa bles the echo of c haracters to the DTE. [...]

  • Página 16

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 16 X Extended Result Codes This co mmand sel ects the subset o f the result cod e messag es used by the modem to infor m the DTE of the res ults of commands. B lind dialing is enabled or disabled by country par ameters. If the u ser wishes to [...]

  • Página 17

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 17 n Value in A TXn Command Short Form Long Form 0 1 2 3 4 42 CAR RIER 75/1200 X X X X X 46 CARR IER 1200 X X X X X 47 CARR IER 2400 X X X X X 67 PROTOCOL: V42 X X X X X 70 PROTOCOL: NONE X X X X X 83 LINE IN U SE X X X X X 85 OFF-HOO K INTRUS[...]

  • Página 18

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 18 &R RTS/CTS Option This selec ts how the mode m controls CTS. C TS operation i s modified if hardw are flow control is sele cted (see &K command). T he parameter v alue, if v alid, is written t o S21 bit 2. Syntax &R<v alue>[...]

  • Página 19

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 19 +IBC In Band Commands This co mmand prov ides a mechanis m by which an i n-band second ary channel may be impleme nted. This in-ban d secondary channel can be utilized t o transparently exchange c ommands and r esponse s to/from the mod em [...]

  • Página 20

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 20 Table of Supported V.80 Commands Command Hex Codes Description Supported V.80 DTE-to-DCE Command s <extend0> <le ngth> <control> <res t of command> <40h> <42h> The DCE decodes thi s as a sequence of 3 + ([...]

  • Página 21

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 21 V.22bis Call Control Commands DD i a l This comm and directs the modem to g o on-line, dial according t o the string ent ered and attempt to e stablish a connect ion. If no di al string is supp lied, the mode m will go on-line and attempt t[...]

  • Página 22

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 22 T Set Tone Dial Default This comm and forces DTM F dialing until the nex t P dial modifier or P command is rec e ived. T he modem will set an S-Parameter bit to indicate that all subseq uent dialing shou ld be conducted in tone mode. T he D[...]

  • Página 23

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 23 M Speaker Control This comm and selects w hen the speaker w ill be on or off. T he parameter v alue, if valid, i s written to S22 bits 2 and 3. Syntax M <value> Defined Values <value> De cimal nu mber correspondi ng to the sele [...]

  • Página 24

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 24 V Single Line Connect Message Enabl e This co mmand enab les or disabl es the single line connect mes s age for mat as follow s: Syntax V<valu e> Defined Values <value> De cimal nu mber correspondi ng to the sele cted opt ion.[...]

  • Página 25

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 25 *D Displa y Dela yed Numbers This co mmand cau ses the modem to send a list of the delayed numbers toget her with the delay associat ed with each. T he modem w ill return a list of delayed telephone numbers as de fined in the *B co mmand. T[...]

  • Página 26

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 26 Extension Pick- up (Enabled by AT-STE=2 , AT-STE=3, A T-STE=6, or AT-STE=7): Case 1: Modem off-h ook, Local Handset Goes Off-Hoo k If the local handset goes of f-hook while the modem is in a data conne ction, the loc al handset w ill be mut[...]

  • Página 27

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 27 V.22bis Modulation Control Commands +MS Modulation Selecti on This ex tended-format compo und parameter contro ls the mann er of operation of the modulation ca pabilit ies in the modem. I t accepts six subparam eters. Sy nta x +MS=[<carr[...]

  • Página 28

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 28 %E Enable/Di sable Line Q uality Monitor and Auto-Retrain Controls w hether or not the mo dem will automatically m onitor the line qual ity and request a re train (%E1). The parameter val ue, if vali d, is written to S41 bits 2 and 6. If en[...]

  • Página 29

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 29 V.22bis Erro r Control an d Data Compression Commands +ESR Selective Repeat This ex tended-format numeri c parameter controls the us e of the sel ective repeat (SREJ) option in V.42 . Sy nta x +ESR=[<value>] Decimal number 0 sp ecifyi[...]

  • Página 30

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 30 K Break Control Controls the re sponse of the m odem to a br eak received fr om the DT E or the remote modem or the B comma nd. The parameter v alue, if valid, is written t o S40 bits 3, 4, and 5. Sy nta x K<value> Defined Values &[...]

  • Página 31

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 31 V.22bis Synchronous Access Mode Commands Three co mmands su pport Synchronou s Access Mode: +ES enables an d disables Synchr onous Acce ss Mode i n the client or centr al site mode m. Enabling Synchron ous Access M ode enables the use of t [...]

  • Página 32

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 32 +ITF Transmit Flow Control T hresholds The +IT F command det ermines the flow co ntrol thresholds use d by the modem for transmit data fr om the DTE. This optional co mpound parameter allows the DTE to d etermine the input b uffer size in t[...]

  • Página 33

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 33 V.22bis FastConnect Command $F Fast Connect Control This co mmand all ows configuring of the client mode m to co nnect to a centr al site mo dem that support s non-stand ard V.22 and V.22bi s Fast Connect pr otocols. Sy nta x $F<n> De[...]

  • Página 34

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 34 V.22bis Line Side Device Commands -TTE Threshold Adjustments for Telephony Extension This co mmand all ows the host to s et/tune t he telephon e line voltage level drop thresho ld necessary for th e modem to determine Line-in-U se, Extensi [...]

  • Página 35

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 35 V.22bis S- Paramet e rs The S-Paramet ers are sum m ariz ed in the S-Parameter Table alon g with their defaul t values which may be loaded at any time by using the Z command. Register s or register fie lds quoted as “reserved” are res e[...]

  • Página 36

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 36 Summary of S-Parameter Defa ults Register Function Range/Units Default* S0 Rings to Aut o-Answer 0-255 rings 0 S1 Ring Counter 0-255 rings 0 S2 Escape Char acter 0-255 ASC II 43 S3 Carriage Return Character 0-127 ASCII 13 S4 Line Feed C har[...]

  • Página 37

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 37 S-PARAMETER DE FINITIONS S0 - Number of Rings to A uto-Answer S0 sets the nu mber of the rings required before the modem automat ically answ ers a call. Setting this p arameter to zero disabl es auto-answer mo de. Range: 0-255 rings Default[...]

  • Página 38

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 38 S8 - Pause Time For Dia l Delay S8 sets the ti me, in second s, that the mod em must pa use when the “,” di al modifier is encountere d in the dial str ing. Range: 2-255 secon ds Default: 2 S9 - Carrier Detect Response Time S9 is suppor[...]

  • Página 39

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 39 S16 - Test Mode Bit Mapped Options Status S16 indicate s the test in progres s status. Default: 0 Bit 0 Local an alog loopbac k. 0 = Disabled. (D efault) 1 = Enabled. (&T 1) Bit 1 Not us ed Bit 2 Local d igital loopbac k 0 = Disabled (d[...]

  • Página 40

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 40 S22 - Speaker/Re sults Bit Mapped Options Stat us S22 indicate s the status of command options. Default: 11 7 (75h) (01110101b) Bits 0-1 Spe aker volu me (Ln). 0 = Off (L0). 1 = Low (L1). (De fault) 2 = Medium ( L2). 3 = High (L3). Bits 2-3[...]

  • Página 41

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 41 S27 - Bit Mapp ed Options Status S27 indicate s the status of command options. Default: 73 ( 49h) (01001001b) Bits 0,1,3 Synchronous/ asynchronous se lection (&Mn/&Qn). 31 0 0 0 0 = &M0 or &Q0. 0 0 1 = &M1 or &Q1. 0 [...]

  • Página 42

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 42 S36 - LAPM Fail ure Control Default: 7 (0 0000111b) Bits 0-2 T his value indicates what should happen u pon a LAPM failure. These fal l back options are initiat ed immediately upon connectio n if S48=128. If an invalid number i s entered, t[...]

  • Página 43

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 43 S41 - General Bit Mappe d Options Status S41 indicate s the status of command options. Default: 13 (C 3h) (00001101b) Bits 0-1 Co mpression sel ection ( %Cn). 0 = Disabled (%C 0). 1 = MNP 5 (%C 1). 2 = V.42 bis (%C 2). 3 = MNP 5 and V.42 bi[...]

  • Página 44

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 44 S91 – PSTN Transmi t Attenuation Level S91 sets tr ansmit att enuation level from 0 to 15 dBm for the PSTN mod e, resulting in a transmit level fr om 0 to -15 dBm . Range: 0 to 15 dBm (Correspondi ng to 0 to -15 dBm tran smit level.) Defa[...]

  • Página 45

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 45 V.22bis Result Codes The modem re sponds to comma nds from the DT E and to activity on th e line by signal ing to the DTE in the form of result c odes. . Two forms o f each result c ode are av ailable: long-for m, an English-like "verb[...]

  • Página 46

    Chapter 4 - V.22bi s Command s Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 46 Code Message Meani ng 16 CONN ECT 19200 The mode m has connect ed to th e line, t he DTE spe ed is 19200 bps a nd DTE speed reportin g is enabled. 22 CONNECT 75TX /1200RX The mode m has esta blished a V.23 o riginate connecti on and line sp[...]

  • Página 47

    Appendix A – Te st/Demo Card Inform ation Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 47 Appendix A – T est/De mo Card Inf orm at ion Block Diagram S peaker DS1 Modem Module Power Supply Power Switch Power Connector RJ-1 1 Connector DB-25 RS-232 V olume Control Tip/Ring Fuse Transceiver (RS-232) Figure A–1. Ser[...]

  • Página 48

    Append ix B – Pr oduct Approval s, Regu latory D esign Co nsidera tions, Co mplianc e Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 48 Appendix B - P roduct Appro v al s , C ompli anc e, and L a y out Consider at ions Product Safety and EMC Approvals Safety EMC UL 60950 FC C Part 15 (Clas s B) CSA 950 Canada (Class B[...]

  • Página 49

    Append ix B – Pr oduct Approval s, Regu latory D esign Co nsidera tions, Co mplianc e Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 49 Regulatory Design Considerations This se ction dis cusses hardw are consideration s, safety, an d Telecom la beling r equirement s. Hardware Consid erations Disclaimer: Multi-T ech Sy[...]

  • Página 50

    Append ix B – Pr oduct Approval s, Regu latory D esign Co nsidera tions, Co mplianc e Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 50 Recommended Ferrite (SMT) Manufacturer – Associated Compon ent Technology (ACT ) – Part # - YCB-1206 Manufacturer – Murata Erie – Part # - BLM 31A601SPT Recommended Ferrite (T[...]

  • Página 51

    Append ix B – Pr oduct Approval s, Regu latory D esign Co nsidera tions, Co mplianc e Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 51 SocketModem Placement This figure i llustrates where t o place the SocketM odem on a typic al applica tion. It must be placed so that the analog end i s near the phone jack. Analog to[...]

  • Página 52

    Append ix B – Pr oduct Approval s, Regu latory D esign Co nsidera tions, Co mplianc e Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 52 Compliance Multi-Tech Syste ms, Inc. Complia nce This se ction dis c usse s Multi-T ech’s SocketModem compliance w i th 47 CFR Part 68 and Indu stry Canad a CS-03 Telecom regu latio[...]

  • Página 53

    Append ix B – Pr oduct Approval s, Regu latory D esign Co nsidera tions, Co mplianc e Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 53 8. No repairs ar e to be made by y ou. Repairs are to b e made only by M ulti-Tech Systems or i ts licensees. Unauthoriz ed repair s void regis tration and w arranty. 9. If your home [...]

  • Página 54

    Append ix B – Pr oduct Approval s, Regu latory D esign Co nsidera tions, Co mplianc e Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 54 Labeling Continuity and Changes The labeling content and for mat requirement s in effect when a product was approv ed shall be effective f or the life of the product. T he labeling co[...]

  • Página 55

    Append ix B – Pr oduct Approval s, Regu latory D esign Co nsidera tions, Co mplianc e Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 55 (ii) For a new model that is registered t o a family of prev iously certified T E, the self-mark ing format shall be: IC: XXXXXX-ZZZZZZZZ W here: · “XXXXXX” is the Co mpany Numbe[...]

  • Página 56

    Append ix B – Pr oduct Approval s, Regu latory D esign Co nsidera tions, Co mplianc e Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 56 7. Some para meters requir ed for comp liance w ith Teleco m’s Telepermit r equirements are dependent on th e equipment (PC ) asso ciated w ith this dev ice. The assoc iated equip m[...]

  • Página 57

    Index Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 57 Inde x $F – Fas tConne ct C ontrol , 33 %L - Report L ine Signal Lev el , 24 %Q - Report L ine Signal Quality , 24 &C - RLSD Option , 17 &D - DTR Option , 17 &F - Re store Fa ctory Configura tion (Prof ile) , 14 &G - Select Guard Tone , 23 &K [...]

  • Página 58

    Index Multi-Tech Sys tems, Inc. MT2456SM I-22 Soc ketModem D e veloper ’s Guide 58 –STE= - Set Te lephony Extension , 25 Sync hronous Ac cess Mode Com mands , 31 T - Set T one Dial Def ault , 22 Table of Result Codes , 16 Table of Supported V.80 Comm ands , 20 -TRV – T ip and Ring Voltage Mea surem ent , 34 -TTE - Thres hold Adjustme nts for [...]