         IDC-1914BL  IDC-1914BXL, p ppp 2.18
        

1.  p pp, p騥 奬 p 室 . 

        S57 - 쭠 p筠 
        S58 - ᨬ쭠 p筠 
        S59 - ᫮ p ᨣ

    p 室騩 , ᫨:

        S57 < FREQ < S58,  FREQ -  ᨣ 맮,   ᨣ
        p S59 p.

    㬮砭 pp ⠭  15, 68  5 ᮮ⢥⢥.
   Pp p  NV RAM     AT&F  ATZ.


   HH:

   ᫥ ᬥ ppp   p ⤠ ᫥
   ᫥⥫쭮 :

        ATZ S57=15 S58=68 S59=5 &W
        OK
        AT S99=8
        OK
        <p  ⥬  ﭨ ᨣ DTR>

   ᫨  㤥 ᤥ 㪠 p楤p,  㤥 pp⭮
   p 室騥 .



         IDC-1914BL  IDC-1914BXL, p ppp 2.19
        

1.  p ⨢ ⢥  襭 ᮥ  p
   V.32*. p騥 pᨨ ⠫ ⠭ ᮥ  p 
     祭 18 ᥪ㭤, ᫥ 祣 p砫  p 䠪. ,
   p p    ⮣ p   筮 
   ⠭ ᮥ.  p  㤥 p  p
   䠪, ᫨   p 뫠 p㦥 pp筠 ᫥⥫쭮
   p⮪ V.32*.

2. H稭   pᨨ,  AT&F   祭 pp
   S70-S81, S100, S57-S59.    ᮢ⨬  pp
   ᯥ祭, ᯮ騬 AT&F  樠樨 . p ⮬ 
   p﫨 ⠭ pp ᭮ p p, p
     p.   樠樨  ⥯p ᫥ ᯮ짮
    AT&F1.

3. p pp S63. 室 魮 p稪  p 뤥 
   p㥬  ⥯p p  pp - S91.

4. 襭 p ᫥  p⮩ DSP. p p樨 DSP  
    襬 砥 ⠢ 2 ᥪ㭤. ᫨ DSP  ⢥   p,
   p  p ⮬᪨.

5. p 訡 p⪨ ᨣ DSR  p p. 筮 
   ᨣ  p訢 pp ᯥ祭, ⠪   訡 
   p  p .

6. p 訡 p ᨣ CD  p AT&C0 p 祭
   H.

7. ᥭ   p  AT+FAA.  p p 
    p⠫ ⮫쪮  p  (+FCLASS=0). p ⨢
   ⢥ p⠥   p:

      AT+FCLASS=0;+FAA=1;A         - ⨢ ⢥,  2
      AT+FCLASS=1;+FAA=1;A         - ⨢ ⢥,  1
      AT+FCLASS=2;+FAA=1;A         - ⨢ ⢥,  2

   몫 ⨢ ⢥   AT+FAA=0  ATZ.



         IDC-1914BL  IDC-1914BXL, p ppp 2.20
        

1. Pp S91    AT&F.  ⠭ 祭 
   㬮砭  ᯮ짮  AT&F1  ATS91=11.

2. p  ⢥  p ppp 㢥祭  p 
   ⭠ ᥪ㭤.   p p  p묨 "稢묨"
    (⨯ US Robotics).

4.  pp S63. p  饩  p 맮 ⠢
   (S7+S63) ᥪ㭤,  砥, ᫨ 㤥 p㦥 ⢥ 㤠 ,
    (S7) ᥪ㭤  p⨢ 砥.  p ⢥ pp  㢥祭
   p  饩 㤥 ⪠ 㤠  ᮥ
    p⮪ V.32  p.

5.  p     .4  ᯮ짮 祭
   pp S69.  p 맮  㤥 ᮤp 2, ᫨  p㦥
   ⢥ 㤠 .  p ⢥  S69 㤥 ᠭ 祭 1,
   ᫨ 뫠 ⪠ ᮥ  p⮪ V.32  p.

6. p  訡  p pp S79/S80 p ᮥ 
   p   ⪨ (뫠   ᪮p ᮥ
    㪠).



         IDC-1914BL  IDC-1914BXL, p ppp 2.21
        


1.  p p, 騩 pp ( p )
   pp ᮥ p 裡   US Robotics (⠪ 뢠 訡
   "UTR-2").

    ⮩ 訡 ⮨  ᫥饬:  p  p 
   USR 稭 뫠   p rate renegotiation  ⥪
   ᪮p  p  1 ᥪ㭤. p ⮬    p 
   ,  p  pp ᮥ. p稭 ⠪  
   p  p쭮 ᫥ "V.32bis rate word"   USR. 
   p  ⨬ p  ᫥ pᮢ  rate renegotiations
   , 祬 p  4 ᥪ㭤,  IDC   ⠪ pᮬ 㤥
   㬥 ᨬ쭮 pp襭 ᪮p  p樥. p
   p p ᫥ pp饭 pᮢ  p USR  pp
   㤥 ⠭.

2.   뢮 ⨪ ᮥ:

        AT-S    -- 뤠 ⨪ ᮥ
        AT-SR   -- p뢠 p ⨪

   pp:

        AT-S

        Online   158 sec
        Retrains 1 sent / 0 granted
        Renegs   10 sent (3 up, 7 dn, 0 denied) / 3 granted
        Shifts   3 up, 8 dn, 3 cur
        Bursts   12
        SNR      35 (29 avg)
        Rx Lvl  -30 (-29 avg)

        OK

   ᭥:

        Denied  renegotiations:  IDC-1914 ⠫ 㢥 ᪮p, 
        ⮣  p諮.

        Shifts: p ᪮p  p樥   ᫥ "rate
        renegotiation" & retrain. ᫨  㢥稫 - 䨪p
        "Shift up",  ..

        Bursts: ᫮ ᯫ᪮ 㬠  .

        SNR and Rx Level: p  ⥪饥 祭 ⭮襭 ᨣ- 
        p p ᨣ.

    ⨪ p뢠  p p ⠭ ᮥ.
       AT&F  ATZ - ᫥ ᯮ짮 AT-SR.

3. ᥭ   p  뤥 .  p AT&L1 ⢥騩
    㤥  (᪮筮 ) ⮭ CNG (1300 ) p ⥬, 
    ⢥.  AT&L1 ⮬᪨ 砥 뫪 ⠪ ⮭ 
   p 뢠饣  (  p p ppp ᫥
   ᯮ짮  AT-C1). Pp S7  ⮬ p  p⠥,
   祭 ⠩- p ᪮筮.

4. p  p  ᪮p  p ᮥ.

5.  pp S65.

         0-2 -- pp 蠣 p fall-forward. ᫨  ﭨ
                    ,  㤥  㢥 ᪮p  
                     (S65 & 7) * 2400 bps p  p fall-forward.

         3    -- ᫨   p 1,  p CONNECT  㤥
                    ᮮ pp㥬 ᪮p ᮥ, 室 
                    ⭮襭 ᨣ-  ⥩ 㤠 
                    ( p CARRIER   砥 뤠 p쭠
                    ᪮p ᮥ).    
                    , ᫨ ᪮p p祭 pp S80.

         4    -- ppp

         5    -- ᫨   p 1  pp襭 p楤p ppp
                    (AT%E1),  㤥 믮  直 p,  
                    ⥪饩 ᪮p 㤥 p p襭   㬥襭,
                        㬥 ( pp襭
                       ᪮p  ).  㤥
                    p室  ᪮p 4800 bps, ᫨  뫮 p㣨
                    p祭 (pp, pp S109).

         6    -- ᫨   p 0,  㤥  30 ᥪ㭤 p
                    ⪮   ᪮p, ᫨  
                    㬥訫. ᫨   p 1,   㤥 ,
                    ᫨ ⭮襭 SNR  6  , 祬 "p襥" 
                     ᪮p.

         7    -- ᫨ ᪮p ᮥ 뫠 p祭 pp S79/
                    S80,  㤥  ⠭ ᨬ쭮 
                    ᪮p ( p 0),  㢥稢  ⥯ 
                    ᮮ⢥⢨  祭ﬨ ⮢ 0-2 ⮣ pp (
                    p 1).

   祭  㬮砭 - 34 (decimal).

6.  p 䠪 室 p  pp S92 ( p  -
    p S91).  pp    AT&F  p
    NVRAM. 祭  㬮砭 9 (-9 dBm).

7. p 訡, 易  묨 祭ﬨ  
    p M4-M6 p p  1200 bps.



         IDC-1914BL  IDC-1914BXL, p ppp 2.22
        

1. p  筮  p p⬠ p p.

2.  pp ﭨ -⥫ DSP p p  V.32*.
   p p  ᥣ 䨪p p 饩 p p
    뤥   pp樨 訡 (\N0, \N1).



         IDC-1914BL  IDC-1914BXL, p ppp 2.23
        

1.  ।  யணࠬ ॣ S76  S77 ࠡ⠫  ⠪,
    㪠  㬥樨, - 祣 뫨  訡  
   .   ᨨ யணࠬ  訡 ࠭.
