

                  :     


       ᥤ  । 祫, ᯮ騬 ⥫-
樮 㤮, , 뭥ᥭ  , 
᭮.

 :  䠪  ⢮ ࠡ  ⥫䮭
             ;
 :    ⢮ ࠡ   -
            .

      ਠ ࠧࠡ⪨ ⠭⭮ ।᪮⭮ 
AnCom ST-2442,  ⠪ १ ७, ஢  ⥫䮭-
   ⥫ ⥭ , ,  ⠭ -
  짮⥫ ⠢ ᭮ ଠ樨, । -
⥫.


               1. , 騥 ⢮ 裡
                        ⥫䮭 

      䮭 ஧⪠  襬  ᮥ  ⮬᪮
⥫䮭 ⠭樥  묨 ஢.     ᨣ
६ 殮   室  ᮡᥤ,   
६   室   ( 㯫᭠ ).  -
 䮭     ⥬  ஢ 室 -
 殮.  ஢ 筮 뢠 ᪮ .

         ᮡᥤ ࠧ - ७樠쭠 -
⥬ ८ࠧ ஢   ஢.  -
쭮  (,   300...3400 ,   -
室 "㪮" 饭) ८ࠧ  ᮪, 믮-
 ⭮ 㯫⭥ ,     ।-
 ࠧ ᪮쪮 ࠧ஢  ᫥饩 ⠭樨,   -
  㪮 . ᫨    㭪,  ᭮ -
 믮 ⭮ 㯫⭥  ८ࠧ  ஢
,  ⠪  ⠭樨,  ன 祭 ᮡᥤ. ८ࠧ-
  ᮪   ⭮ 뢠 ⪮ ९ਥ ().
  ⠪ ᨫ쭮 饭 奬 ᬮਬ,   蠥
   ⠯ ।.

        -    ஫ 祭 ,  -
த   ⮯ ,  ᥫ᪮ ⭮ 
⨭ ஢  ⮫. ⮬  室 㤨, 
 ᪨    ᨣ ⥫  ᪠-
:
 - 堭 (㬥襭 魮)  ᨣ -   ᠬ
     ᪨ ;
 - ४ 㤭-⭮ ࠪ⨪ ( 魮
   ᨣ  ᨬ  ) 맢  ஢; -
   ⢥,   ᮪ ᨣ   ᨫ-
    ,  ᫥⢨,  ਥ 뢠饣  (
   2400 ) ᨣ ᫠ ᨫ쭥, 祬  ⢥饣 ( 1200
   );
 -   ( ᭮ ᮯ⨢);  ଠ⨢ 600
    +-20% ॠ 祭 室  1800 .  ࠬ஢
   ਢ  ᮣᮢ ७樠쭮 ⥬   -
   饬 ᭨  ॠ쭮 ⢨⥫쭮;
 - ﭭ 殮 ᬥ饭 ( ᠬ,  ஬ -
    䮭)   ⥫ ⪫  -
   ;  ᪮⥩   2400 /  䠪  ᨫ쭮
     , .. 設⢮ ந⥫ ᯮ ᯥ-
   樠 ࠭ଠ.

        襥 ﭨ 뢠  㣮-
த 裡,   饥 ᫮  ⠢ 8...11 ⪮.
ᨬ ᪠     ⢠ ன ᮢ
䨫஢  ⥫䮭 ⠭. ᭮ ᪠:
 - 䠧 ᪠ (⪫ 㯯 ६ 宦-
    ⭮⥫쭮  祭   1900 ); ९ਥ -
   ᭮ 筨  ᪠,     -
   樨 筮 ࠭祭 6...8 ⪠;
 - 㤭- ᪠ (堭    ய-
   );  ९ਥ   㤭 ᪠ ⭮-
   ⥫쭮 , ஬ 砥   䨫ࠬ, " 
   ᠫ 㪠 祫";
 - ᬥ饭 饩  (ᯥ ᨣ ࠢ୮ ᬥ頥 
   ᪮쪮 ); 稭 -  ᮣᮢ ன -
   ஢    㯫⭥  (  
   筮 ᫥ 宧異 ),   +-7 , 
   ;  室    ᬥ饭  15 ;
 -  䠧 (஦ 䠧  ਮ᪮  砩 -
   );  ᭮ 뢠 ࠧ⭮ 樥 ᨣ ମ-
    饣 殮  ᨣ 맮 ();
 - ᪠窨 䠧 (砩 ⮪ ᪠窮ࠧ  砫쭮
   䠧 ᨣ);   ४祭  쭮
   㯫⭥.

       ,     ᥬ 
ᨣ:
 -  - 㬫  業 ᮮ⭮襭 魮⥩
    ᨣ  㬮    ⮭ ; -
      ᭮ 䠪஢,  ⢮ ࠡ -
   ;
 -   - 砩 ⮪ ᮢ 殮, -
    稭 宩 ࠡ   ; 筨 
    : -蠣 㤮 ⠭権,  
     ᥤ ᪨ ,  殮 ᬥ-
   饭  .;
 - ࠭ ᨣ - ६ 㬥襭 魮 ᨣ 
   ஢  ᯮ ;
 -   - ਮ᪮  魮 
   ᨣ; ७  㦨    -
    ᭨     1...10  
   㤮  2 ;
 - ࠭祭 ⭮ ; ஬ ᬮ७  稭
   (४ , ९ਥ),   "㪮⢮" த 
   ந ᮭ   ⥩襬 砥 ⮬,  -
    ᫨誮      㡪;
 - 饥 襭  ࠬ஢   ᫥⢨ ᮪
   㧪  裡;    㢥祭 砥 
   ॢ襥 㤮   ⢥ .


                     2. ࠪ⨪ 

      筮 ந⥫ 㬠稢  設⢥ ࠬ஢, -
  ⢮ ࠡ ,     । ⨢-
 ஢ન ⢠ ࠡ  ࠩ 㤭⥫쭮. 
    ⠫  奬 (chipset).  㦭
뢠,   ࠪ⨪ ।  ⮫쪮 -
 ॠ樨 ,   ࠭祭ﬨ, 뢠묨 ⠭-
  ᯥ祭 ᮢ⨬.

      ࠥ    ⮬ " ⠪    -
 " ਬ⥫쭮  ࠪ⨪ .  ⠡ 1 -
:
     - ᭮ ॡ, ।塞  ⮩稢 ࠡ -
         䨪樨;
     - । 祭, 祭  ⠭ ࠧ -
         (   200 .)   १⠬
        㬥樨;
     - ॡ ᯫ樨  ॠ .

                                                           1
Ŀ
 ࠬ          ॡ।륳ॡ
                                 -ࠪ-ᯫ-
                                䨪樨   ⨪          樨    
Ĵ
஢ ।           () -13       -13...-10   -10     
। ॣ㫨஢ ஢ () -13...0    -15...0 
        ।                           -15..-4          
⢨⥫쭮 ਥ () -43       -43...-35   -43     
堭 䨧᪮  ()  15        15          20     
४  䨧. ( )  12        15          20     
஦ 䠧 (ࠤ)                                    
                     V.22     +- 7.5   +-7..+-22.5   +-22.5 
                     V.22bis  +- 7.5   +-3...+-7.5   +-7.5  
㤠 ᪠窮 䠧  .                                 
 15    (ࠤ)                                    
                     V.22     ନ.+-7..+-22.5   +-22.5 
                     V.22bis  ନ.+-3...+-7.5   +-7.5  
      ()    +- 4     +-4...+-10  ⤥.
                                               
                                                        +- 15  
 ᪠ (%)  .  4            4        4      
.-.  䠧-. ᪠-                     த. 
ᮮ. ⪠ ९ਥ                          : 
   ()      V.22      6         4... 7      8...10 
                     V.22bis  ନ.  4... 6      6... 8 
⭮襭 ᨣ/  室                                
     0.00001                                
   ()        V.22     9         8...15      7      
                   V.22bis    18        16...25      15     
㤠 ᭮                                    
⮩ 0.25-20  (  ) ନ.     1      
⭮襭 । - ᨣ                               
 max  魮 娳                               
   ()       V.22     ନ.     0      
                     V.22bis  ନ.     2      
ମ᪮ . ஢ .                                
ᨣ +-6  ( ⮩ )                                 
                       V.22   ନ.     1      
                     V.22bis  ନ.     0.05   
窮ࠧ  ஢  ନ.            
ᨣ  ⮩ 1                                         
(६ ⢨  / 㤠                                 
  )          V.22  ନ.     300/+6 
                                                        300/-18
                     V.22bis  ନ.      5/+-3 


       ⠡ 1 ,  । ࠪ⨪  
楫 ᮮ⢥ ॡ, ।塞  䨪樨, 
  㭪⠬   ॡ ॠ쭮 .

      ⤥쭮 室 ᬮ ॠ   ⠡-
騥 ⢨,  ਢ  ६ ᪠ -
樨:
 -    ⭮襭 । 魮 ᨣ  -
   쭮  魮   -10 ;
 - ६ ய 室 ᨣ  ஢ -60 ;
 - ᪠窨 䠧  ⮩ ᫥  15   㤮 
   180 ࠤ.

       ।⠢ ᯮᮡ   ⠭ -
ᯮᮡ ᫥ 砭  ⢨.  ⮬ 
 ਠ ॠ樨 :
   - ࠧ ७ ᫥ ⥬ ,  ᫥⢨, -
      த ᥠ 裡;
   - 㦥 樨  ⪠ ஢ 楤 ⮬-
      ⠭ ᮥ (retrain)  ࠧ뢠 ᥠ -
     ;
   - ᠬ⠭ ᫥ ⥬  楤 ⠭,
     ᫨    饭.

       樨 ⢨ প 楤 retrain  
⨯   ⨩ ਠ ।⥫쭥.

      ⨬ 襭 ⢠ 裡  ⨣  ,
 ன   ⥫䮭 .  ४ -
  ᢮⢮  뢠 ॣ㫨஢ ⢨⥫쭮
 ன .   䨧᪠ த -  ᮣᮢ-
 ७樠쭮 ⥬   ॠ쭮 .  ⮬
㬥蠥 魮 室 ᨣ ,   室
ᮡ⢥ ਥ,  蠥 ॠ ⢨⥫쭮 
室 ᨣ.

       ⠡ 2 ਢ , ࠪਧ騥 ⢨
  ⥫䮭 ⠭樨.   ᯥ稢 ⮩稢
㦥 ਢ ᨣ.

                                                          2
Ŀ
 ࠬ                 । ॡ  
                                       ࠪ- ᯫ樨
                                       ⨪                    
Ĵ
ᨣ 㬬 (㤮)                                         
                            ()300...500290...850   
                                       290...665               
                          ஢ ()-35...-30   -25...-40   
                                                   ॣ㫨஢ 
 ᨣ "஫ 뫪 맮"                              
             ⥫쭮 ᨣ  () 0.7...1.1   0.7...1.1   
             ⥫쭮     () 2.9...5.0   2.9...5.0   
 ᨣ ""                                               
         ⥫쭮 ᨣ      () 0.2...0.5   0.15...0.65 
         ⥫쭮         () 0.2...0.5   0.15...0.65 
 ᨣ "뫪 맮" ()                              
         殮                () 25...150    16...150    
                            ()16...50     16...50     
         ⥫쭮 ᨣ      (c) 0.7...1.1   0.7..1.1    
         ⥫쭮         (c) 3.1...4.3   3.1...4.3   


       ⠡ 2 ,  । ࠪ⨪ 
 ᮮ⢥ ᯫ樮 ॡ,   ।
 ࠬ " 㬬".  ࠡ   ⭮ ਢ
 㤮⢮⥫쭮 ᯮ ᨣ "BUSY".


                 3.   , ᮡ⢥, 

        ᮢ,  묨 室 ⠫  -
  ᯮ짮  (ᮯ殮   ஬, -
ઠ  ࠢ, ⠭ 㭨樮 , ࠡ 
"殮" ⥫䮭   ᯥ᪨ , 騥 
饭  ),  ஡㥬    ꥪ⨢ ஡,
   ᫥⢨ 襣 ,  ᯮ᫠ 
.


         

      ᬮਬ  ⢨   ⥫䮭 ⠭樥.
᪮ ⥫䮭 ⠭       ।⢠
 ()  ,      ⠭ ᮥ 
   ᠬ,   ,  :
   -  ᭨ 㡪   ᨣ  ;
   -  㦥 뢭 㤪 ࠥ   ᭮ 
     ᨣ  ;
   -  ⪨ 㤪 蠥 㡪,      -
      ⢥, ᫨     ⢥砥 - 蠥 㡪;
   - 蠢 ⢥,  ࠧࠢ,   ⮬  ,  
     㦥, 稭 "ࠧ".

      ⠪,         ⠯?

 1)  ⢥⮢    ⨨ 㡪,   뤠 ᮮ饭
    "NO DIALTONE".  ᫥騥 稭 (४樨  -
    ஢  ⭮⥩    ਢ ᫥ -
    ).
     - 襭 ᪨ 楯    ⥫䮭 -
       ,   ࠢ.
       ...  ᪠ ࠢ.
     -   祭  ⭮  ⨯ "" ( -
         ਭ樯 ࠡ),  ᯮ㥬   ஭
       奬  ,  । 砥   
       "notebook"  襢 .
       ... ਤ  ⨯  (  ᫮).
     - 㤮 祭 娩,    .
       ...   ਬ ,  ணࠬ -
       ࠢ ⢨⥫쭮  ᨣ   ᯮ짮
        "AT X1"  "AT X3", ࠧ騥   
        㤪.
     -  ࠬ ᨣ  ᨫ쭮 ⫨  ⠭-
       .
       ...      "AT X1"  ਬ
       ஢ .
     -    ᯥ ⢥  䨪஢ ६ -
       ᮪ 㧪.
       ... ਤ ᯮ짮 ०  ।  -
         ⠭樨,  ६    㡪  -
       砫   ᫥  ॣ S6 .  ⠪
           " " -  ࠢ ⢮ 裡 -
        ⠢  襣.
     - ਢ  ࠫ쭮 ⥫䮭.
       ...    .
     - ⢥    뫮 .
       ...  ᯮ 뤥  ( ⮬ 筮 ਬ-
        AT &L1  AT X1),   ⮫쪮 ᢮ࠧ,  
       樨  裡⠬  .

 2)  ࠭,    ᯮ ⪨ 㤪   뤠
    ᮮ饭 "BUSY".  ⠢  㤮,   
    ⠫, ..   㦨 ᨣ   뤠
    ᮮ饭 "NO CARRIER"  祭 ६  ⠭ ᮥ-
    . ᬮਬ  稭:
     - ⥫ ⫨ ॠ ࠬ஢ ᨣ  ⠭-
       .
       ... ⥫쭮 ਬ   ७묨  ணࠬ
       ࠢ塞묨    ࠬࠬ ,  
        , ६ ᮮ⭮襭 ⮭/㧠 ᨣ "-
       ".
     -  ஭ .  䮭 ஬ ᨣ "-
       " ,  筮  䨪樨 ⮣ , 
        㤮, ।祭 ᮢᥬ 㣮 .
       ...  ⠪  筮 ணࠬ 㬥 -
       ⢨⥫쭮   㤪.
     - ⮨    ப  . ᫨ 
       稢 ";"    "AT O",     
        ᯮ ᨣ .

 3)    㡪  ⢥砥,      -
    . ᫨  ࠢ  ᨣ ⢥   -
    ,  稭 ᪮॥ ᥣ  ⮬,    ᬮ ᯮ
     㤮   । 砫  (   
    㬥 ६ ᯮ 㤮  ᨣ ⢥).  -
     ந, ᫨ 㤮  祭 娩  祭 ⪨
    (砥      ⥫䮭).
    ... ᠫ쭮  ।⢮ -  "AT X2".

 4)    㡪, 砫 ⢥,  १ ᪮쪮
    ᥪ㭤 ᮥ 뫮 ࠧࢠ ⥫䮭 ⠭樥. ᫨ -
        ⢮,     -
    -   ᨣ ⨫ ॢ襥 樮
    㤮, ᯮ饥  ⢥   ࠧ ᮥ-
      2100 . ⢥騩  뤠  ⠭ ᮥ-
       .
    ...  ।  ⮤ . ॢ ⢥饣 -
      ࠡ  ⠭ Bell 212A (᪮ 1200 /), 
     뤠 ⮩  (   ॠ
    ᥣ  ᪮쪮 ⨯ ,  ⤥   䥪
      ⨣ ᢥ, 室  ० ࠡ  뤥-
     ).


          

      ⠭  ,  - 宣 ⢠
⥫䮭 .    ࠡ   ,
  ਢ ந室饥  ⥫䮭 . ᪮쪮 ⨯
ண ,  ⠪ AnCom ST-2442  業 ࠬ
. ⨢ ।⢠ ஫ ⥫䮭  - ⥬ -
쭮 ᬮ७,   ᫨ ।⢠,  
  ⢮ 裡  ᪥ ᫥.

 1) ⮨ 쥧 ⭥   ࠫ쭮 ⥫䮭. -
     ⨯ ⮢ (ਬ,    -
      ⠭  ⥫䮭 )  ⥫쭮 ᯮ
    ⥫䮭     㡪.
    ... ⮬  ४  ⥫䮭 
    ⮫쪮 १ ⥫ ᮥ⥫ ,  ⠪  -
    짮 襢 ,  騥 ⠪ ᮥ⥫  -
    ⠢騥  祭  ⥫䮭   ࠡ.

 2)  "MaxCom-2400", "AnCom ST-2442"   㣨 
    ।⢠ ⭮ ன   ⥫䮭 ,
    騥 ॠ ⢨⥫쭮. ன  ⮫쪮
     ⪠ -  ⮬ 楤 ࠧ, 䥪  
         ࠧ⥫.
    ... ஡.

 3) ணࠬ ॣ㫨஢ ஢ 室 ᨣ  ᯥ樠
    । ॡ ண , .. 室 ᪠ -
    . 襭 ஢ 蠥 ⢮ ਥ 㤠 -
    ,    ᫮ ࠡ ᮡ⢥ ਥ.
    ன   ⨯    ᮣᮢ  ⥫䮭
    .  ⢥ ।⢠, 饣  ⨬쭮
    ஢  ४ ணࠬ, 騥  -
    ⢠ ᡮ    ਥ, ⠪   뤠.  -
     饭ﬨ   ᯮ짮  ⢥ ஢ -
    ⢠ ਥ ᢮  㤠 .

 4)    ᪮쪮 ணࠬ ॠ権 ⨢-
     ४஢ 㤭  䠧 ᪠. ਬ: 
    ࠡ  "ଠ" ᫮,  㣮த  (-
    讥 ⢮ ⪮ ९ਥ)  ᥫ᪨  (讥
    堭  ४ ).

 5)    祭 ᮪ ஢ 㬮   
    쥧묨 ﬨ.   ᯥ譮 ࠡ 祭 ண, 
    ⠪ 祭   襢 (ন騥 ⮫쪮 ᪮
    1200 /) . ᭮    㭪樮 
      .
    ...  祬 ࠡ ண   ,   
     ண.   ⠫  ᪫뢠 ᫥騬
    ࠧ.  , ࠡ  ᪮ 2400 /,  -
    樨 ᪠ ⥫䮭  ॠ  -
    ⨢ ४.   砫쭮 ன  筮
    ⢨⥫  ஢ 㬮    ᮪ ஢  ந-
     ࠢ ⠭,  ⢮ ࠡ.  
     ⨢ ४  ⪫砥   ᪮ 1200
    /,   ࠡ   易⥫쭮, ⮬ -
     ᪮  ਭ  襭. , ন-
    騥 ⮫쪮 ᪮ 1200 /, ⨢ ४ 
       ᠬ ᥡ   .   ᪮
      設⢠ ਬ 㦥 ࠫ쭮 ५, 
     ⨬ ᯮ짮 ,  
    ணࠬ ⪫祭 ⨢ ४  ᪮ 1200
    /.

 6) ।⢥  ⠭ ᮥ   
      祭 ॣ S9.  㢥祭 
     , ࠪ   ⠭ ᮥ,
      訡筮 ਭ   㤠 .
    १୮ 㢥稢  祭  㦭, ⮡  ய
    ᠬ 饩.

 7)  ᯥ譮 ⠭,   묨,  -
    ਮ᪨  ࠧ뢠   ""  ࠭
    ( ᮥ  ४樨 訡).
    ...    稭  䨧᪮ ஢ (讥 -
    ,  , ਮ᪮ ࠭ ᨣ  ..),
        㢥祭 祭 ॣ S10. 
     ணࠬ প  㦥  ய-
     ᨣ  㤠   ⮬,   蠥
    㡪, 뤠 ᮮ饭 "NO CARRIER".   㭨-
    樮 ⮢  ⮬ ⥫쭮 뤠  "AT &C0",
     ⮡ࠦ  饩  㤠   -
     DCD 㭨樮 .


         

       稭 ⪠   ᠬ . ᫨ 
묨   ⠭ ᮥ  "", -
 ⥫쭮 ᬮ ᯮ㥬 . , 稭 
⮬,      ணࠬ 몫祭    ॠ-
 楤 retrain.  襭 ⢠ 裡 , -
ন騩 retrain, ⠥  믮.   室 
 ⭥ -  横.  "ᠭ"  
ࠧ襭  饭 楤 ६   .


         HOST

      ᮡ类  , ᯥ  ࠡ   ०-
 ⮬᪮ ⢥.

 1) ⮩稢 । ⥫䮭      -
     .  ⥫䮭 ⠭樨, ନ騥
    祭 ᫠ ᨣ,  㦨   ।
    樨.

 2) ࠧ⭠ 䨪 ⥫䮭      -
    ࠫ쭮  祭 १ ᮥ⥫  ⥫䮭
       , ⠪   㭨樮 ᯥ祭.
    ⬨᪠ ࠡ⪠   뤥 ᨣ -
     (ࠢ ॠ   㤮㦨   
    ந⥫).  ணࠬ ⮢ 䨪 ᨣ -
     ।⢥  䥩  ஬ (   ᮮ饭-
     "RING"),     ᢮   ࠡ  -
    .  ஡    ᯮ짮
    ᯠ७ ⥫䮭.

 3) ⭮   ࠧ뢥 ᮥ, ᫨  -
     蠥 㡪  ᢮ ,  뤠  host  -
    砭 ᥠ. , 室騩  ० ⮬᪮ ⢥-
    ,   䮭 㤪  ⠭樨 ਭ ᢮ ᮡ⢥ -
    室 ᨣ    㤠   ஢
    쭥 ࠡ.
    ... ⮤  ᪮쪮: 㬥襭 魮 室 ᨣ-
    , 㬥襭 祭 ॣ S10,   筮 ਬ
    ⢥ .
