

              


                            ⥩  襭 த
                         ⥫䮭 , ਮ⠩, 
                         ࠩ , ᨬ쭮 ⮩稢 
                         宧饭 


      䮭  ਧ ᯥ ।   ⥫-
䮭    砭 ⥬ ८ࠧ ஢-
 ⮪  㫨஢ 騩 ମ᪨ ᨣ.  窥
ਥ,   樨,   ᯥ  -
  ᪠ 饣 ᨣ,  ࠧ  த뢠
 訬  訬 ᯥ宬.  ஢   
  ᭥ ᢮  ⨢ ࠧ-
 ⢨   樨   ᪠.

       ⢠ ⮤ ஢ ᬮਬ  - ⮤
஢ ୠ BYTE (USA)  ⮤  "⨪-". 
⮤   㯭 ᮮ⢥騬  -
樮   ६ ᨬ쭮  ᯥ䨪 樮-
 ⥫䮭 .  ,  ᢮ ।, ᮢ襭 
६ ⨢⠢  ⮤ 㣮   -
⭮ ⮤ ஢ ୠ BYTE ⢥ ॠ,
    뢠  ⮬, , -, ⢥
⥫㭨   - ᬮ ਬ ਪ
樮   ᢮ ᥤ ࠪ⨪, , -,
᭮뢠 롮   ᯫ樨  ⢥ ᫮
᭮  ।⢫ 室 㤥   -
宧饭  ⮩稢.


               1. ⮤ ஢ ୠ BYTE

       ஢   ਨ ୠ BYTE (BYTE/NSTL
Lab report July 1993) y⢫ 뫪 ࠧ ⨯ -
 १ y  ।. ७ ᪮ ( Kbps -
  ᥪyy) ⤥쭮  ० 1-WAY  2-WAY । 
ᯮy  ࠢ .


           裡

       ਬ ⮤y 樨 ⥫䮭 
PN-3064, ࠧࠡ⠭y ⮬ TR-30.3 EIA/TIA (Electronic
Undustries Assosiation/Telecommunications Industry Association).
஢ન ஢  37  25 ⨯   ⠭ 
 ⮪ V.32bis  V.fast ᮮ⢥⢥.   -
  । y  ᪮쪨 ⨯   -
᪨ y⪮. ᯮy :
  -  ⨯ ⥫䮭 :
     - Digital - ஢ ,  ᭮ ᯮy  ।-
         ⥫ ﭨ;  ⮨⢮  ⥫-
        ᫠ ᨣ,  y  ᯥ᪨ y -
         ८ࠧ     ஢y
       (筮 y᭮- y);
     - Digital with multiple conversions - ஢  ஬y묨
       ८ࠧﬨ  y y;
     - Analog - ,  ࠭;
     - Satellite - y⭨, ࠪਧy 訬 ६ -
       প  ᨣ, ࠦ  y ७樠쭮
       ⥬,  ८ࠧy 4- ஢   2- -
       ;  ᮪᪮  প -   -
        쥧 ᪠;
  - ᥬ ⨯ ᪨ :
     - 600   ࠫ묨 ⢮   ;
     - 2  / ⢮;
     - 14  / ⢮;
     - 28  c    y⨢ﬨ, 묨 
       y襭  ᪠.

       ࠡ ᯮy y TSA (Telecom Analysis
System) Series 2.


         ⢨  ஬

       ஢ન y⢫   DOS, Windows 
Macintosh. ﭨ থ   ᪫砥 ( 뫠-
  ⮫쪮  ⮢)   ᯮ짮 ᯥ樠஢-
 ஫஢ Hurdler  Quadra 950 ( ᪮   
57.6 Kbps)  Hayes ESP  Compaq 486/33 ( ᪮ 115.2 Kbps), 
⠪ ணࠬ HowFast  Softart.


         䨣y 

       ஢  ० V.42 (४ 訡)  V.42bis
(ᦠ⨥ ). ᯮy ࠬ ⮪, y⠭ 
y砭. ࠢ ⮪ y⢫  ⭮ y஢
(ᨣ RTS/CTS).


         ⮢ 䠩

       ஫ ᯮy 뫪  ⨯  (-
  32KB  48KB ):
   - ।⥫쭮 ᦠ (    1:1);
   - ᪨ (2:1);
   - ⥪⮢ (3:1);
   -   (4:1).

       뫠  y ०:
   - 1-WAY - yy (  ⮪,  ० ); 
     y⢫ ᦠ⨥  뫪y    ࠢ, 
     ⭮  ⮫쪮 yࠢ ଠ;  ० -
      yॡ⥫.
   - 2-WAY - y,  ⮬  y ࠢ y⢫
     ᦠ⨥  뫪 ⮢ 䠩.


         y

      y祭 १y ଫ   ᢮ ⠡: -
-ந⥫, ⨯ , 業, । ᪮ ।
   ०, ᨬ쭠 ᪮ ࠡ  "⮩" -
, ᨬ쭠 ᪮   ஬, প 䠪०-
, ⠢塞 ணࠬ ᯥ祭, ࠭, न -
.  y⢠ ਢ १y ࠢ  ࠧ y
ਬ, 祬  ࠢ ४y ᪮쪮 ⨯ 
   y.

      , ਬ,   BYTE/NSTL Lab report July 1993 y訬
 ࠧ y  :
- All around (   ਬ) - Boca Research 14.4K;
- Portable (⨢) - Practical Peripherals PM14400FX PRT;
- High SPEED (᮪᪮⭮) - Motorola Codex 3260 Fast;
- Data only (⮫쪮 । ) - AT&T Paradyne Comsphere 3830;
- 2-WAY ( y᭮  묨) - Zyxel U-1496E;
- Low cost (ᠬ 襢) - Practical Peripherals PM14400FX PRT;
- Best overall in V.32bis (y訩 । ন V.32bis) -
  AT&T Paradyne Comsphere 3830;
- Low cost in V.32bis (ᠬ 襢 । ন V.32bis) -
  GVC FM144/144V.


        2. ⮤ ஢   "⨪-".

      ࠢ⥫ ⥭ ⠭ , ।⠢塞
ଠ-ந⥫ﬨ  ࠭⥫ﬨ , ஢
 ᯮ짮 ᯥ樠஢ 饣 㤮 -
  AnCom SIM-3. 祭 ⠭  ਢ
 ⠡ 1.
                                     1
ͻ
      ᮪ ஢        
Ķ
 1 ZOOM VXF V.42bis/MNP                    
 2 Smartmodem OPTIMA 2400                  
 3 Bullet E9696m                           
 4 IDC 2442 BXL                            
 5 AnCom ST-2442, STE-2442                 
 6 ZyXEL U-1496S+                          
 7 Bullet E1414MX                          
 8 Bullet P9624MX                          
 9 Bullet PC2400MH                         
10 9624VQE                                 
11 MICROPORTE-1042                         
12 Bullet E2400M                           
13 ZOOM AMX-2400                           
14 ZyXEL U-1496 (int)                      
15 ZOOM V.42bis                            
16 UNICOM H8N 1414 VQE                     
17 UNICOM H8N 2400 VH                      
18 UNICOM H8N 9624 SH                      
19 MXE-2442B                               
20 SUPRA external                          
21 SmartLink 9624PSV                       
22 UFOMate P9624MX                         
23 UFOMate P1414MX                         
24 SmartLink 1414AV                        
25 INPRO IDC 2496 BXL                      
26 INPRO IDC 2442 BXL                      
27 SmartLink 1414AV + V.32bis V.25bis      
28 SmartLink FAXMODEM 19,200 bps V.32terbo 
29 SmartLink V32Te                         
ͼ
            
       室 ⠭ । ।쭮 ⨬  -
㥬  ࠬ ⠡ ⢨  裡.

      ⮤ ⠭ (ਫ 1)   ਬ 
஢     ᮪饭 ணࠬ.  -
ࠬ । ⠭ " "   ᪮
 300 /  ᨬ쭮    ०  /, -
  㥬  뤥 .  ᮪饭 ணࠬ
  ⮫쪮  ०    
(atd)  ᪮ 2400 /.  ०   饥
६  㯮ॡ⥫  筮 짮⥫ ⥫-
㭨樮 ।  १ ஢   ⮬ ०-
 ਢ  饩 .

      " " (data pump) -  , ⢥⢥
 ⠭/ࠧ ᮥ  । ⮢ ⮪  -
䮭   䨧᪮ ஢,    楤 ४樨
訡  ᦠ ⮪  V.42bis/MNP5. 客 ⠭ 
᪠ ᨣ   ⠡ ࠡᯮᮡ 
" ",  ਢ  ᪠ ਭ ଠ樮-
 ⮪. ᮡ " " ⨢ ⠡-
騬 ⢨ । 宧饭    -
ॡ⥫᪨ ᢮⢠, ᮡ ਬ⥫쭮  ⢥ ᫮-
 ᯫ樨.

      奬 ⥫쭮 ⥭ ਢ  . 1, १
஢ ।⠢  ਫ 2.

 Ŀ
  IBM PC                
  + ணࠬ SIM:      
  1) ⠭ ᮥ,                 Ŀ
  2)  ,                      IBM PC              
  3)  ᪠,                  + ணࠬ SIM:    
   Ŀ             Ŀ             
       ⥫䮭   㬫  -  ஫    
      AnCom SIM-3 >>͵ 㥬  ᪠   
                           ᪠멳         ਭ
   - +         ᨣ      - ⮪      
        ᪠                       
                             
                  

                 . 1. 奬 ஢ 


       ⠡ 2 ।⠢ ⥬ ⥣ࠫ쭮 業 ⢠
. 祭 ᮢ 樥⮢  ⥬ 業 
饭   "⨪-"     짮-
⥫   㣨  ᨬ   ।⥭.

                                                    2
ͻ
   ⥬ ⥣ࠫ쭮 業 ⢠ " "    
͹
ࠬ 宧- ⢨-⭮-ᯫ᪨᪠ ᨣ
饭       ⥫-  襭   㬮, Ķ
᪮  2400 /   , /      -஦.
    ᯮ짮       ,         .ਥ䠧 
㥬   -  Smin3   SNR2  SNRsuperdFmax Rmax JPh 
䮭    饣                                        
짮 ()    (i=1)   (i=2)  (i=3)  (i=4)(i=5)(i=6)
͹
業             0 㦥  -39 >=18    > 0    <3 0-2 <5ऺ
ࠬ          1 -40...-44   17   0...-3  3-6  3-5  5-7 
,            2 -45...-49   16  -4...-7  7-10 6-8  8-10
 - Bi        3 -50...-54   15  -8..-11 11-16 9-1111-13
                   4  -55 <=14   <=-12  >16 12  >13  
͹
⭮⥫.த      0.5     0.1     0.3   0.0  0.0  0.1 
ᮢ - Ķ
樥,Kiத   0.4     0.1     0.2   0.1  0.1  0.1 
ͼ

      ⭮⥫ 樥 Ki  ࠬ 宧饭-
   ⥣ࠫ쭮 業 ⢠ ࠦ ᮬ ࠬ-
  ⮩ 業 ਬ⥫쭮   ᫮ ᯫ樨,
ਬ,  ᨬ   ⥫䮭 ᮥ - த᪨
 㣮த 樨. 㬬 ᮢ 樥⮢ Ki ࠢ
.

      ਢ  ⠡ 2 祭 ᮢ 樥⮢ -
, 室  ॠ ⢥ ᫮ ᯫ樨 ,
  ᥣ   ᪮ 堭 (᫠-
 魮) ᨣ  ⥫䮭 ,  ࠦ  -
 ॡ  ⢨⥫쭮 .   ⮩ 稭
ᮢ 樥   "⢨⥫쭮"  襥
祭. ⢨⥫쭮  筮 ⠢ 稭  -42
 -47 ; ⠡ 3 뢠 ᢮⢠ ᪮᪨ ⥫䮭
  ᨣ  , ⠭  ࢥ ᪮-
  ଠ樮 ⥩,     -
  䠪,      㦤 ࠡ  -
 ᫠ ᨣ  ।,     । ⢨⥫-
.
                                                           3
ͻ
  ஢ 魮 ᨣ (), ᨬ   室   
            ⮢ 鸞 ଠ樮 ⥩                   
͹
                     ⥪       ROSNET          InterLink
             964-1001925-5592231-8567925-8714 946-8752
͹
                                                         
"ᨩ᪨ ।"                                       
195-9410 (ᥭ. 93)   -36     -40     -49     -42      
Ķ
樠 "4"                                              
291-2649 (.93)   -31     -34     -42     -30      -32   
Ķ
 "⨪-"                                            
194-0961 (ﭢ 94)-22..-29  -25     -34     -24      -25   
ͼ

      ࢥ ଠ樮 ⥩  ⠭ ।-
⢥  ⥫䮭 ⠭, ⮬ 堭 ।  -
 ⪮  -_.  砥  室-
 ⠭ 裡  ࢥ஬, ࠧ饭  㤠  ,
堭 ᨣ ।  ⪠ -_
 _-  㢥稢 筮  稭  6 
16 .

        稬 䠪஬ 宧饭  -
 ᢮⢮ ࠭  ࠡᯮᮡ ᫥ 宦
, ᪨ ⠡ ⢨ - ⪮६-
 ᯫ᪮ 㬮   . ।⢥  ६
ᯫ᪠ 㬮 ⮢୮ ਥ ଠ樮 ⮪  
,   砭 ⮣ ⢨    ⪮
६ ⠭ ⮢୮ ਥ, 祬 ࠩ ⥫쭮
   ॢ宦   (RETRAIN).    
। ॡ ⮩稢  "ᠭ"  -
᪨  ⢨.

      ⥣ࠫ쭠 業 ⢠ " "  ।-
  㫥:
                   6
                 ____
                 \
             Q =  >   (Ki * Bi)
                 /___
                  i=1

       ⥭ ⠭ , 뢠騥  -
ᠭ ⥬ ⥣ࠫ쭮 業 ⢠, ᢥ  ⠡ 4.

                                                           4
ͻ
        ⥣ࠫ쭠 業 ⢠ ஢      
͹
                          業  ࠬ,     ⥣ࠫ쭠  
                                        襭 業
                        Ĵ  (। ) 
                        㢳/᯳Ķ
                  (1)(2)(3)(4)(5)(6)  த த
Ķ
 1 ZOOM VXF V.42bis/MNP 2  2  2  3  2  3    2.1     2.2  
 2 Smartmodem                                            
           OPTIMA 2400  2  3  3  3  3  3    2.5     2.6  
 3 Bullet E9696m        2  2  0  2  4  3    1.5     1.9  
 4 IDC 2442 BXL         0  3  1  4  4  2    0.8     1.5  
 5 AnCom ST/STE-2442    2  3  4  3  4  3    2.8     2.9  
 6 ZyXEL U-1496S+       2  2  1  4  1  4    1.9     2.1  
 7 Bullet E1414MX       3  4  1  2  2  2    1.9     2.0  
 8 Bullet P9624MX       4  3  1  2  0  2    1.8     1.7  
 9 Bullet PC2400MH      4  1  1  2  3  3    1.7     1.9  
10 9624VQE              1  3  1  2  3  3    1.4     1.7  
11 MICROPORTE-1042      1  3  3  3  3  3    2.0     2.2  
12 Bullet E2400M        2  1  1  2  4  2    1.6     1.9  
13 ZOOM AMX-2400        1  1  1  4  2  2    1.1     1.5  
14 ZyXEL U-1496 (int)   2  2  1  4  1  4    1.9     2.1  
15 ZOOM V.42bis         3  3  2  2  2  3    2.2     2.2  
16 UNICOM H8N 1414 VQE  2  4  1  4  4  3    2.0     2.5  
17 UNICOM H8N 2400 VH   1  3  1  4  4  3    1.4     2.0  
18 UNICOM H8N 9624 SH   2  3  1  4  4  2    1.8     2.3  
19 MXE-2442B            0  0  0  3  3  1    0.1     0.7  
20 SUPRA external       1  3  1  2  3  3    1.4     1.7  
21 SmartLink 9624PSV    2  4  1  2  3  4    2.1     2.3  
22 UFOMate P9624MX      2  4  0  2  2  3    1.7     1.9  
23 UFOMate P1414MX      2  4  0  2  3  2    1.6     1.9  
24 SmartLink 1414AV     4  4  1  3  4  3    3.0     3.2  
25 INPRO IDC 2496 BXL   2  2  1  4  4  2    1.7     2.2  
26 INPRO IDC 2442 BXL   1  2  0  4  4  2    0.9     1.6  
27 SmartLink 1414AV +   3  4  0  2  2  2    2.1     2.2  
28 SmartLink FAXMODEM   3  4  0  2  3  3    2.2     2.4  
29 SmartLink V32Te      3  4  0  2  4  3    2.2     2.5  
ͼ

      ⥫쭮 ।⢮  AnCom SIM-3   -
७  ࠪ⨪ ⢨⥫쭮   ᨣ
 "⢥ ⠭樨"  "",  ,   㯠 
⪥   ॠ , ।, ਬ, 䠪 -
㢥७ ᯮ ᨣ "BUSY".

       ७ ࠬ஢ ⮩稢 " "
।⠢  ⢮ ॠ権 ⮪ ४樨 訡
 ᦠ ⮪  (V.42, V.42bis, MNP2, MNP2/4, MNP3, MNP3/4,
MNP5). ।⢮  ⮪ AnCom FBR-242  
⠭:
1) ࠬ LAPM (V.42):
    - ᨬ쭠  ଠ樮  N401,
    - ࠧ  k,
    - ⢮ ஢ y⢮७  N400,
    - ⠩-y ⢥ত T401,
    - ⠩-y ਭ ᮥ T403,
    - 易⥫  (FCS32, SREJ, TEST, ID ந-
      );
2) ࠬ V.42bis:
    - ࠢ ᦠ p0,
    - ᫮  ᫮ (ࠧ ᫮) p1,
    - ᨬ쭠  ப p2;
3) ࠬ ୠ⨢ ⮪ (MNP):
    - প -ਥ஢ (MNP2)  -ਥ஢-
       (MNP3) ० ⮪,
    - 稥 ⨬஢ ० 䠧  (MNP4),
    - ᨬ쭠  ଠ樮  N401,
    - ࠧ  k,
    - প 楤 ᦠ  MNP5;
4) 稥 ᮡ ॠ樨 ⮪:
    - ⢮ ॠ樨   ⨯ ᨣ break
      (in_sequence, expedited, destructive),
    - ४⭮ ॠ樨 ४饭 ᮥ ( 믮
       ath   "" 뤠 y ஭
       DISC (LAPM)  LD (MNP)).

      ४  ⢮ ॠ樨 ᠭ ⮪ -
楤 ⠪    ⮩稢 " " ࠩ  
 襭  ।   ᫮ ⥭ᨢ -
客 ⠭,   ⠭ 稭 ਢ쭮 ᮢ-
⨬  ࠧ ந⥫.


                                                        1.

                 
                  
                            AnCom SIM-3

      ७ ⢨⥫쭮:
   - ஢ ⠡騥 䠪, ᯥ稢 -
     ஬ ᪠ -;
   - ⠭ 室 魮 - -10 , ⠭
     ᮥ  -,  ᭨ 魮  ࠭-
      ⮩稢 ਥ   ᮮ饭 "NO CARRIER",
     䨪஢ ࠭筮 祭 室 魮 (Smin1);
   - ⠭ 室 魮 -10 , ⠭ ⥫
     ⥭ (᫠ 20 , 魮 ᨣ  室 -
     - -30 ,  ᮮ⢥ ॠ ᫮ ᯫ-
     樨), ⠭ ᮥ, ᭨ 魮  
     ᮮ饭 "NO CARRIER" (Smin2)  ࠭ ⮩稢 ਥ
     (Smin3);
   - ⠭ 室 魮   (-50...-30 ),
     ।ਭ ⪨ ⠭ ᮥ, 䨪஢ -
     祭 쭮 魮 (Smin4),  ன ந室 㢥-
     ७ ⠭ ᮥ;
   - ᮮ⭮襭 魮⥩ ⭥ ᥣ 㤥 ⠪:
     Smin2 < Smin1 < Smin4, Smin3   Smin4.

      業 ⨬ ᭨ ஢ ᨣ ( 裡)
ந ᫥騬 ࠧ:
   - ணࠬ ॣ S10=25 - (⨬ ஢
     ⥫쭮  2,5 ᥪ㭤),
   - 室 魮  ⠭ ࠢ -10  
     -30 ,
   - ⠭ ᮥ  - -,
   -   裡 (   ணࠬ 
     ஢ 魮 室 ᨣ -, ⥫쭮
     ஢ - 2 ᥪ㭤, 㧠 - 5 ᥪ㭤), 䨪 ᨬ쭮
     ⨬ ஢ 魮 ᨣ (dS1  ᭨  -10 
      dS2  ᭨  -30 ),  ன    
     ᨭ஭ ( 筮 易  ࠧ ⨢ -
     ४  ⥬ 䠧 ⮯ன )   ନ-
      ᮮ饭 "NO CARRIER".

      業 ᨬ쭮 ⨬  䨧᪮  裡
( ⮩ ஢થ 業 ﭨ  ⢮ ਥ -
- ᭮ ⢨ - ᮣᮢ ᮢ
    ᪠ 㤭 ᯥ ਭ ᨣ-
   祭 魮 ਭ ᨣ). 
⮩ ஢થ ᫥ ਬ, ᫨  ।ᬮ७ 樥
, ᮣᮢ   ஬ ⥫䮭  (ன
):
   - ஢ ⠡騥 䠪,
   - ⠭ 室 魮   =-10 ,
   - ⠭ ࠧ筮 ⢮ ᥪ権 ஢ ⪮
     ⥫䮭   -  -,  -
     ⮩稢 ⠭ ᮥ, 䨪஢ 㬬 ᨬ-
        (Lmax1).

       ७  ⠭ 室 魮 -
  = 0 , 䨪஢ १ (Lmax2).

      ७ ⨬ ᮮ⭮襭 /:
   - ஢ ⠡騥 䠪,
   - ⠭ 室 魮 -10 , ⠭ ᮥ;
      魮 㬠,  -  ࠭ ⮩-
     稢 ਥ, 䨪஢ ࠭筮 祭 魮 㬠
     (1)  ⭮襭 / (SNR1, 㫠: SNR=-,
     );
   - ⠭ 室 魮 -30  (⥭ 20 , -
      ᨣ  室 - -10)  ⠭ ᮥ-
     ,  魮 㬠,  -  ࠭-
      ⮩稢 ਥ, 䨪஢ ࠭筮 祭 魮
     㬠 (2)  ⭮襭 / (SNR2);
   -  ஬ 砥 ᫮ ᯥਬ  ⪨, ⠪  
     室 -  ᮡ⢥ 㬮  ᫠ ᨣ-
        ⢥ ,   ᫥  ᮮ-
     襭: SNR2 >= SNR1;
   - ⠭ 室 魮 -10 , ⠭ ࠧ
     祭 魮 㬠 (  1 -6   㢥稢 
     ⪨  ⪥),  ⠭ ᮥ  -
     㥬 ; 䨪஢ 祭 魮 㬠,  ன
     ᮥ  ⠭ (3)  쭮 ⨬
     ᮮ⭮襭 / (SNR3); ।⥭ ᫥㥤 ⤠
     ,  ண SNR3 <= SNR1.

      ७ ⨬ ᮮ⭮襭 /᭠_ -
筮 ७ ⨬ ᮮ⭮襭 / ( -
७   1..150 , 魮  -30 , १-
 - SPR, 㫠  SPR=-, ).

      業 ண 祭  ⪮६ ᯫ᪮
(祪)    㬮:
   - ᯫ 魮 㬠  , ஢  ⢥
     ( 6...18 ) ॢ室 ࠭ । ⨬ -
     祭,  ਢ   - ᨭ஭樨,
       ᫥ ᭨ ஢ 㬮  ਢ  ⠭-
      ⢠ ਥ,   ᫥⢨ ᯫ᪠  ਥ
      ;
   - ⠪ ᯫ᪨ 㬮  ஢ ।⢠ ST24sim
     (   ணࠬ 㡮   뢠 ஢
     㬠, ⥫쭮 ᯫ᪠ 2 ᥪ㭤, 㧠 5 ᥪ㭤), 䨪-
      ᨬ쭮 ⨬ (௨) 祭 ஢ 㬮
     (SNRsuper=-, )    (SPRsuper=-
     -, ),  ਢ   ᨭ஭樨.

      ७ ⨬ ᤢ 饩 :
   - ஢ ⠡騥 䠪,
   - ⠭ 室 魮 -30 ,  ᤢ  
       +-3  +-30  (ᤢ 饩   +-20
         ⥭),  ⠭ ᮥ;
     䨪஢ ᨬ ᤢ (dFmax),  ஬ ⮩稢
     ⠭ ᮥ.

      業 ⨬ ᪠ ᯥ:
   - ஢ ⠡騥 䠪,
   - ⠭ 室 魮 -30 ,
   -  ⢮ ⪮ ९ਥ (८ 䠧 -
     ),  ⠭ ᮥ; 䨪஢ -
     쭮 ⨬ ⢮ ९ਥ (Rmax),
   - 筮,  ४ 㤭 ᯥ (堭 
     ᪮ ⪥), ᭨ ᨬ쭮 ⨬ ⨧
     堭 ᨣ (Amax).

      ७ ⨬ ஦ 䠧  :
   - ஢ ⠡騥 䠪,
   - ⠭ 室 魮 -30 ,
   - ⠭ ᮥ,   ஦ 䠧 50  (-
         ஬諥 )  㢥稢
      ஦ 䠧,  ਢ饩   ⮩稢
     ਥ, 䨪஢  祭 (JPh);
   -  ࠧ ᫥ ﭨ ஦ ,
     ( -30 ,  ஦ 50 , १ JAmp).

      ७ ⨬ ᪠窮 䠧 筮 ७ ஦-
 䠧     ᫥ ᪠窮 0.6  - १-
 dPh.


                                                        2.
                
ͻ
     1 - ZOOM VXF V.42bis/MNP (chip: C2900-12, RC9624DP)  
 ࠢ⥫ 2 - Smartmodem OPTIMA 2400 (chip: C1997J, RC2324DPL) 
 ⠭     3 - Bullet E9696m (E-TECH)                           
        4 - IDC 2442 BXL  (INPRO, ⬠ᮢ )      
               5 - AnCom ST-2442, STE-2442 (⨪-)            
͹
 ࠬ ⠭                    1    2    3     4    5  
Ķ
  ᮥ, /            2400 2400 2400  2400 2400
Ķ
  ᮥ                    atx1datx1datx1d atx1datx1d
 ⥫쭠 ன       at&c1at&q0at%e4      at%e1
                                       &q%e                     
Ķ
  ॣ㫨஢ 魮 -                    -1...
 室 ᨣ,   OutMax...OutMin        -50
Ķ
 室 魮 ,  ன                          
 ந ⠭,       Out -13  -14  -11  -12   -11 
Ķ
 -       Smin2(᭨  -30 ) -46  -47  -46  -47   -49 
 ⥫-      Smin3(⮩稢 ਥ)  -46  -47  -46  -39   -47 
 ,    Smin4(⠭ 裡)     -41  -41  -46  -42   -49 
Ķ
 ⨬ ஢      dS1( -10)   6   12    6   12    39 
 魮 (2/5ᥪ),   dS2( -30)   6    6    6    6    19 
Ķ
 ⨬     SNR1(=-10)     15   15   17   15    15 
 ᮮ⭮襭    SNR2(=-30)     16   15   17   15    15 
 /,  SNR3(=-10,..)   5    4    8    4     9 
Ķ
 ⨬.-.,                             
 ᫥.150,         SPR(=-30)  -8   -7   -6   -5    -4 
Ķ
 .௨.ᮮ.-ᯫ.                           
 (2/5ᥪ),        SNRsuper(=-30)  -6   -8    0    0   -30 
Ķ
 .௨. -ᯫ .                          
 (2/5ᥪ,150),  SPRsuper(=-30) -27  -29  -19  -16   -30 
Ķ
  饩, ⠭ 裡, +-                             
                       dFmax(=-30)  10   10    8   24    16 
Ķ
 ᪠ ᯥ, ⠭ 裡,                              
 .९ਥ      Rmax(=-30)   6    9   12   12    12 
Ķ
 ४ , ⠭ 裡, /600                           
                          Amax(=0)  -9  -15   -9  -12   -15 
Ķ
 ஦ 䠧,  ஦ 50,                          
 +-㣫 ࠤᮢ      JPh(=-30)  11   11   12    9    11 
Ķ
 ஦ ,  50,                              
 +-                   JAmp(=-30) 2.0  2.0  2.0  1.6   2.0 
Ķ
 窨 䠧, ᫥ 0.6,                          
 㣫 ࠤᮢ        dPh(=-30)  20   20   20   15    15 
ͼ

                                     2 (த)
ͻ
     6 - ZyXEL U-1496S+                                  
 ࠢ⥫ 7 - Bullet E1414MX                                  
 ⠭     8 - Bullet P9624MX                                  
        9 - Bullet PC2400MH                                 
              10 - 9624VQE                                         
͹
 ࠬ ⠭                    6    7    8    9   10  
Ķ
  ᮥ, /            2400 2400 2400 2400 2400
Ķ
  ᮥ, 맮/⢥        atx1datx1datx1datx1datx1d
Ķ
 -       Smin1(᭨  -10 ) -46  -46  -45  -46  -45 
 ⥫-      Smin2(᭨  -30 ) -46  -46  -45  -46  -45 
 ,       Smin3(⮩稢 ਥ)  -46  -46  -45  -46  -40 
           Smin4(⠭ 裡)       -44  -44  -44  -45 
Ķ
 ⨬ ஢      dS1( -10)   3   12    6      6 
 魮 (2/5ᥪ),   dS2( -30)   3    6    6      6 
Ķ
 ⨬     SNR1(=-10)     16   14   15   17   14 
 ⭮襭    SNR2(=-30)     16   14   15   17   15 
 /,  SNR3(=-10,..)          
Ķ
 ⨬.-,                             
 ᫥.150,         SPR(=-30)    -3   -4   -6   
Ķ
 .௨ ᮮ.-ᯫ᪘㬳                         
 (2/5ᥪ),        SNRsuper(=-30)  -2    0    0    0   -3 
Ķ
 .௨. -ᯫ᪈                           
 (2/5ᥪ,150),  SPRsuper(=-30)          
Ķ
  饩, ⠭ 裡, +-                            
                       dFmax(=-30)  20    8    8    8   10 
Ķ
 ᪠ ᯥ, ⠭ 裡,                             
 .९ਥ      Rmax(=-30)   3    6    0    9    9 
Ķ
 ४ , ⠭ 裡, /600                          
                          Amax(=0)  -9   -9   -6   -3   
Ķ
 ஦ 䠧,  ஦ 50,                         
 +-㣫 ࠤᮢ      JPh(=-30)  25   10   12   10   11 
Ķ
 ஦ ,  50,                             
 +-                   JAmp(=-30) 1.5  1.5  2.0  1.5  1.5 
Ķ
 窨 䠧, ᫥ 0.6,                         
 㣫 ࠤᮢ        dPh(=-30)  15   20   20   15   20 
ͼ

                                     2 (த)
ͻ
    11 MICROPORTE-1042                                   
 ࠢ⥫12 Bullet E2400M                                     
 ⠭    13 ZOOM AMX-2400                                     
       14 ZyXEL U-1496                                      
              15 ZOOM V.42bis                                      
͹
 ࠬ ⠭                    11   12   13   14   15 
Ķ
  ᮥ, /            2400 2400 2400 2400 2400
Ķ
  ᮥ, 맮/⢥        atx1datx1datx1datx1datx1d
Ķ
 ਬ砭                                          AT        
                                                      &N14     
                                                      *Q0      
Ķ
 室 魮 ,  ன                           
 ந ⠭,       Out -10   -6         
Ķ
 -       Smin1(᭨  -10 ) -44  -46  -47  -47   
 ⥫-      Smin2(᭨  -30 ) -44  -46  -47  -47  -46 
 ,       Smin3(⮩稢 ਥ)  -44  -46  -41  -47  -46 
           Smin4(⠭ 裡)     -41  -44  -45  -47  -42 
Ķ
 ⨬ ஢      dS1( -10)   6    6   18    3    6 
 魮 (2ᥪ),     dS2( -30)   6    6   18    3    6 
Ķ
 /,    SNRmin1(=-10)  15   17   17   16   15 
              SNRmin2(=-30)  15   17   17   16   15 
       SNRmin3(=-10,⠭ 裡)       8    7    7 
Ķ
 /,(150)SPR(=-30)      -6   -5   
Ķ
 ᯫ᪨ 㬮,  SNRsuper(=-30)  -9   -3    0   -2   -6 
Ķ
 ᯫ᪨ .,   SPRsuper(=-30)                    
Ķ
  饩, +-   dFmax(=-30)  12    8   20   18   10 
Ķ
 ᪠ ᯥ, ⠭ 裡,                             
 ⪮ ९ਥ    Rmax(=-30)   9   12    6    3    6 
Ķ
 ४ , /600    Amax(=0)  -9    -12  -15   -9 
Ķ
 ஦ 䠧,                                                
 (50), 㣫.ࠤ.       JPh(=-30)  11    9    8   25   11 
Ķ
 ஦                                             
 (50),             JAmpl(=-30) 2.0  1.5  1.5  1.5  2.0 
Ķ
 窨 䠧(0.6),                                           
 㣫.ࠤ.               dPh(=-30)  20   15   20   15   20 
ͼ

                                     2 (த)
ͻ
    16 - UNICOM H8N 1414 VQE (RC144DP,R6645-20,C2900-12) 
 ࠢ⥫17 - UNICOM H8N 2400 VH (SC 110Y/CV/AAA, SC 11044CV) 
 ⠭    18 - UNICOM H8N 9624 SH (SC 11075CV/AKA, SC 11054CV) 
       19 - MXE-2442B                                       
              20 - SUPRA external                                  
͹
 ࠬ ⠭                    16   17   18   19   20 
Ķ
  ᮥ, /            2400 2400 2400 2400 2400
  ᮥ, 맮/⢥        atx1datx1datx1datx1datx1d
Ķ
 ਬ砭 (.ன )            ந      
Ķ
  ॣ㫨஢ 魮 -                               
 室 ᨣ,   OutMax...OutMin                    
Ķ
 室 魮 ,  ன                           
 ந ⠭,       Out         -16  -10 
Ķ
 -       Smin1(᭨  -10 ) -48  -44  -45  -37  -41 
 ⥫-      Smin2(᭨  -30 ) -50  -45  -46  -37  -41 
 ,       Smin3(⮩稢 ਥ)  -48  -44  -45  -34  -41 
           Smin4(⠭ 裡)     -47  -42  -44  -37  -41 
Ķ
 ⨬ ஢      dS1( -10)   7    7    6   
 魮 (2/5ᥪ),   dS2( -30)   7    7    6   
Ķ
 ⨬     SNR1(=-10)     14   15   14   15   14 
 ⭮襭    SNR2(=-30)     14   15   15   21   15 
 /,  SNR3(=-10,..)   9    9    8     
Ķ
 ⨬.-,                              
 ᫥.150,         SPR(=-30)  -5   -8   -7   
Ķ
 .௨ ᮮ.-ᯫ᪘㬳                         
 (2/5ᥪ),        SNRsuper(=-30)  -3   -2   -2   +3   -2 
Ķ
 .௨. -ᯫ᪈                               
 (2/5ᥪ,150),  SPRsuper(=-30)                    
Ķ
  饩, ⠭ 裡, +-                            
                       dFmax(=-30)  22   21   18   12    8 
Ķ
 ᪠ ᯥ, ⠭ 裡,                             
 .९ਥ      Rmax(=-30)  12   12   12    9    9 
Ķ
 ४ , ⠭ 裡, /600                           
                          Amax(=0) -15  -15  -15   
Ķ
 ஦ 䠧,  ஦ 50,                         
 +-㣫 ࠤᮢ      JPh(=-30)  11   11   10    6   11 
Ķ
 ஦ ,  50,                              
 +-                   JAmp(=-30) 2.5  2.0  2.0   
Ķ
 窨 䠧, ᫥ 0.6,                          
 㣫 ࠤᮢ        dPh(=-30)  15   20   15   
ͼ

                                     2 (த)
ͻ
    21 SmartLink 9624PSV                                 
 ࠢ⥫22 UFOMate P9624MX                                   
 ⠭    23 UFOMate P1414MX                                   
       24 SmartLink 1414AV                                  
                                                                   
͹
 ࠬ ⠭                    21   22   23   24      
Ķ
  ᮥ, /            2400 2400 2400 2400     
Ķ
  ᮥ, 맮/⢥        atx1datx1datx1datx1d     
Ķ
 ਬ砭                           AT%E0AT&E4AT&E4AT&B2     
                                                AT$E0AT%E0     
                                                     AT\N0     
Ķ
 室 魮 ,  ன                         
 ந ⠭,       Out -10  -10  -10  -10      
Ķ
 -       Smin1(᭨  -10 ) -47  -49  -50  -55      
 ⥫-      Smin2(᭨  -30 ) -47  -45  -49  -55      
 ,       Smin3(⮩稢 ਥ)  -47  -45  -49  -55      
           Smin4(⠭ 裡)     -45  -44  -49  -49      
Ķ
 ⨬ ஢      dS1( -10)  44   12   12   12      
 魮 (2ᥪ),     dS2( -30)  24    7   10   12      
Ķ
 /,    SNRmin1(=-10)  13   14   14   14      
              SNRmin2(=-30)  14   14   14   14      
       SNRmin3(=-10,⠭ 裡)   7    9    9   10      
Ķ
 /,(150)SPR(=-30) -15  -17  -15  -16      
Ķ
 ᯫ᪨ 㬮,  SNRsuper(=-30)   0    7    6   -1      
Ķ
 ᯫ᪨ .,   SPRsuper(=-30) -16  -10  -20  -26      
Ķ
  饩, +-   dFmax(=-30)   7    8    9   12      
Ķ
 ᪠ ᯥ, ⠭ 裡,                             
 ⪮ ९ਥ    Rmax(=-30)   9    6    9   12      
Ķ
 ४ , /600    Amax(=0)  -12  -9  -12  -15      
Ķ
 ஦ 䠧,                                                
 (50), 㣫.ࠤ.       JPh(=-30)  13   11   10   11      
Ķ
 ஦                                             
 (50),             JAmpl(=-30) 2.0  1.5  1.5  1.5      
Ķ
 窨 䠧(0.6),                                           
 㣫.ࠤ.               dPh(=-30)  15   15   15   15      
ͼ

                                     2 (த)
ͻ
    25 - INPRO IDC 2496 BXL (9325 SC11091CV/AAA,         
 ࠢ⥫                 3924 SC11198CV/AAC, 9318 SC11086CV, 
 ⠭                     9342 SC11024CV, ROM V.30)           
       26 - INPRO IDC 2442 BXL (9324 SC11091CV/AAA,ROM V.32,
                                       ⠫᪨ )       
͹
 ࠬ ⠭                      25         26          
Ķ
  ᮥ, /            2400 2400 2400 2400     
  ᮥ, 맮/⢥        ATX1D ATA ATX1D ATA      
 ਬ砭 (.ன )    AT%E0AT%E0AT%E0AT%E0     
                                        &Q0  &Q0  &Q0  &Q0     
Ķ
 室 魮 ,  ன                         
 ந ⠭,       Out-11.5-11.5-10.5-10.5     
Ķ
 ⢨-     Smin2(᭨  -30 ) -48       -46           
 ⥫쭮,   Smin3(⮩稢 ਥ)  -45       -43           
           Smin4(⠭ 裡)     -47       -45           
Ķ
 ⨬ ஢      dS1( -10)  18         9           
 魮 (2/5ᥪ),   dS2( -30)  18         9           
Ķ
 ⨬       Lmax1(=-10)  14        14           
 䨧᪮ ,   Lmax2(=  0)  18        14           
Ķ
 ⨬     SNR1(=-10)                            
 ⭮襭    SNR2(=-30)     16        16           
 /,  SNR3(=-10,..)   9        10           
Ķ
 ⨬.-,                             
 ᫥.150,         SPR(=-30)  -4        -4           
Ķ
 .௨ ᮮ.-ᯫ᪘㬳                         
 (2/5ᥪ),        SNRsuper(=-30)  -2         2           
Ķ
 .௨. -ᯫ᪈                           
 (2/5ᥪ,150),  SPRsuper(=-30) -12       -10           
Ķ
  饩, ⠭ 裡, +-    +25       +25           
                       dFmax(=-30) -22       -23           
Ķ
 ᪠ ᯥ, ⠭ 裡,                             
 .९ਥ      Rmax(=-30)  12        12           
Ķ
 ४ , ⠭ 裡, /600                          
                          Amax(=0)  15        15           
Ķ
 ஦ 䠧,  ஦ 50,                         
 +-㣫 ࠤᮢ      JPh(=-30)  10       9.5           
Ķ
 ஦ ,  50,                             
 +-                   JAmp(=-30) 1.6       1.6           
Ķ
 窨 䠧, ᫥ 0.6,                         
 㣫 ࠤᮢ        dPh(=-30)  15        15           
ͼ

                                          2 (த)
ͻ
 27 SmartLink 1414AV + V.32bis V.25bis (AT&T: BMC-10 9309,     
 ࠢ-      DSP16A M V32FB MA 9340S, DMSCCA-10 9324, V32-INTFC 9331S)  
 ⥫   28 SmartLink FAXMODEM 19,200 bps V.32terbo (AT&T: BMC-16 9353,
 ⠭    DSP16A M V32FB MY 9409S, 7525 EC, V32-INTFC2 9407S, .)
    29 SmartLink V32Te (AT&T: BMC-16 9316, V32-INTFC2 9344S,      
              DSP16A M V32FB MY 9407S)                                   
͹
 ࠬ ⠭                   27   28            29           
Ķ
  ᮥ, /            2400 2400 2400 4800 960014400
Ķ
  ᮥ, 맮/⢥         맮  㥬       
 ਬ砭 (.ன )     at\n1 - direct mode               
                                       at%e0 - disable auto-retrain      
Ķ
  ॣ㫨஢ 魮 -   ࠢ ࠢ  ।:
 室 ᨣ,   OutMax...OutMin 魮    ats91=0     0    
                                         ats91=15  -15    
Ķ
 室 魮 ,  ன                              
 ந ⠭,       Out -11  -10  -10  -10  -10  -10 
Ķ
 ⢨-     Smin2(᭨  -30 ) -56  -56  -56                
 ⥫쭮,   Smin3(⮩稢 ਥ)  -56  -56  -56                
           Smin4(⠭ 裡)     -51  -53  -53                
Ķ
 .஢ .,   dS2 ( -30)   2    2    2    3    2    2 
Ķ
 .⭮.   SNR2(=-30)     14   14   14    9   16   23 
 /,  SNR3(=-10,..)  12    6    6                
Ķ
 ⨬.-,                                  
 ᫥.150,         SPR(=-30) -12  -15  -15                
Ķ
 .௨ ᮮ.-ᯫ᪘㬳                              
 (2/5ᥪ),        SNRsuper(=-30) +12   +3   +2  -14   +7   +9 
Ķ
 .௨. -ᯫ᪈                                
 (2/5ᥪ,150),  SPRsuper(=-30)  -3  -24  -30                
Ķ
  饩, ⠭ 裡, +-                                 
                       dFmax(=-30)   9    9    9                
Ķ
 ᪠ ᯥ, ⠭ 裡,                                  
 .९ਥ      Rmax(=-30)   6    9   12                
Ķ
 ४ , ⠭ 裡, /600 襳襳襳               
                          Amax(=0) -15  -15  -15                
Ķ
 ஦ 䠧,  ஦ 50,                              
 +-㣫 ࠤᮢ      JPh(=-30)  10   11   11                
Ķ
 ஦ ,  50,                                  
 +-                   JAmp(=-30) 1.6  1.6  1.6                
Ķ
 窨 䠧, ᫥ 0.6,                              
 㣫 ࠤᮢ        dPh(=-30)  15   15   15                
ͼ
