From: wolfgang@netcom.com (Wolfgang Henke)
Subject: Re: What IS v.32,v.42(bis) etc?
Organization: Netcom
X-Newsreader: Tin 1.1 PL5
Date: Fri, 8 Jan 1993 18:47:30 GMT

Maarten Landzaat (qb7g6@fel.tno.nl) wrote:
: Can anybody please enlighten me on those v.32 etc. codes? I presume
: they're names of standards, but I'd like to know a little more detail.
: Do they have a one to one relation with baudrate?

Here is the list again, which someone posted earlier to this group:


From: mskuhn@immd4.informatik.uni-erlangen.de (Markus Kuhn)
Newsgroups: comp.dcom.modems
Subject: List of CCITT V-series recommendations (Oct 92)
Keywords: standards, modems, ccitt, modulation, itu
Organization: CSD., University of Erlangen, Germany

I retrieved this list from the new ITU mail server in Geneva and
hope you'll consider it useful. You'll find more info about the ITU server
in ftp.uni-erlangen.de:pub/doc/ccitt.

Markus

----------------------------------------------------------------------

           List of Series V CCITT Recommendations currently in force

Rec. No.   Title                                           Ver. Adop.


- Series V                                                              
V.1        Equivalence between binary notation symbols and (B)  1988    
           the significant conditions of a two-condition        
           code                                                 

V.2        Power levels for data transmission over         (B)  1988    
           telephone lines                                      

V.4        General structure of signals of international   (B)  1988    
           alphabet No. 5 code for character oriented data      
           transmission over public telephone networks          

V.5        Standardization of data signalling rates for    (B)  1988    
           synchronous data transmission in the general         
           switched telephone network                           

V.6        Standardization of data signalling rates for    (B)  1988    
           synchronous data transmission on leased              
           telephone-type circuits                              

V.7        Definitions of terms concerning data            (B)  1988    
           communication over the telephone network             

V.10       Electrical characteristics for unbalanced       (B)  1988    
           double-current interchange circuits for general      
           use with integrated circuit equipment in the         
           field of data communications                         

V.11       Electrical characteristics for balanced         (B)  1988    
           double-current interchange circuits for general      
           use with integrated circuit equipment in the         
           field of data communications                         

V.13       Simulated carrier control                       (B)  1988    

V.14       Transmission of start-stop characters over      (B)  1988    
           synchronous bearer channels                          

V.15       Use of acoustic coupling for data transmission  (B)  1988    

V.16       Medical analogue data transmission modems       (B)  1988    

V.17       A 2-wire modem for facsimile applications with  N    02/91
           rates up to 14 400 bit/s                             

V.19       Modems for parallel data transmission using     (B)  1988    
           telephone signalling frequencies                     

V.20       Parallel data transmission modems standardized  (B)  1988    
           for universal use in the general switched            
           telephone network                                    

V.21       300 bits per second duplex modem standardized   (B)  1988    
           for use in the general switched telephone            
           network                                              

V.22       1200 bits per second duplex modem standardized  (B)  1988    
           for use in the general switched telephone            
           network and on point-to-point 2-wire leased          
           telephone-type circuits                              

V.22 bis   2400 bits per second duplex modem using the     (B)  1988    
           frequency division technique standardized for        
           use on the general switched telephone network        
           and on point-to-point 2-wire leased                  
           telephone-type circuits                              

V.23       600/1200-baud modem standardized for use in the (B)  1988    
           general switched telephone network                   

V.24       List of definitions for interchange circuits    (B)  1988    
           between data terminal equipment (DTE) and data       
           circuit-terminating equipment (DCE)                  

V.25       Automatic answering equipment and/or parallel   (B)  1988    
           automatic calling equipment on the general           
           switched telephone network including procedures      
           for disabling of echo control devices for both       
           manually and automatically established calls         

V.25 bis   Automatic calling and/or answering equipment on (B)  1988    
           the general switched telephone network (GSTN)        
           using the 100-series interchange circuits            

V.26       2400 bits per second modem standardized for use (B)  1988    
           on 4-wire leased telephone-type circuits             

V.26 bis   2400/1200 bits per second modem standardized    (B)  1988    
           for use in the general switched telephone            
           network                                              

V.26 ter   2400 bits per second duplex modem using the     (B)  1988    
           echo cancellation technique standardized for         
           use on the general switched telephone network        
           and on point-to-point 2-wire leased                  
           telephone-type circuits                              

V.27       4800 bits per second modem with manual          (B)  1988    
           equalizer standardized for use on leased             
           telephone-type circuits                              

V.27 bis   4800/2400 bits per second modem with automatic  (B)  1988    
           equalizer standardized for use on leased             
           telephone-type circuits                              

V.27 ter   4800/2400 bits per second modem standardized    (B)  1988    
           for use in the general switched telephone            
           network                                              

V.28       Electrical characteristics for unbalanced       (B)  1988    
           double-current interchange circuits                  

V.29       9600 bits per second modem standardized for use (B)  1988    
           on point-to-point 4-wire leased telephone-type       
           circuits                                             

V.31       Electrical characteristics for single-current   (B)  1988    
           interchange circuits controlled by contact           
           closure                                              

V.31 bis   Electrical characteristics for single-current   (B)  1988    
           interchange circuits using optocouplers              

V.32       A family of 2-wire, duplex modems operating at  (B)  1988    
           data signalling rates of up to 9600 bit/s for        
           use on the general switched telephone network        
           and on leased telephone-type circuits                

V.32 bis   A duplex modem operating at data signalling     N    02/91
           rates of up to 14 400 bit/s for use on the           
           general switched telephone network and on            
           leased point-to-point 2-wire telephone-type          
           circuits                                             

V.33       14 400 bits per second modem standardized for   (B)  1988    
           use on point-to-point 4-wire leased                  
           telephone-type circuits                              

V.35       Data transmission at 48 kbit/s using 60-108 kHz (B)  1988    
           group band circuits                                  

V.36       Modems for synchronous data transmission using  (B)  1988    
           60-108 kHz group band circuits                       

V.37       Synchronous data transmission at a data         (B)  1988    
           signalling rate higher than 72 kbit/s using          
           60-108 kHz group band circuits                       

V.40       Error indication with electromechanical         (B)  1988    
           equipment                                            

V.41       Code-independent error-control system           (B)  1988    

V.42       Error-correcting procedures for DCES using      (B)  1988    
           asynchronous-to-synchronous conversion               

V.42 bis   Data compression procedures for data circuit    N    01/90
           terminating equipment (DCE) using error              
           correcting procedures                                

V.50       Standard limits for transmission quality of     (B)  1988    
           data transmission                                    

V.51       Organization of the maintenance of              (B)  1988    
           international telephone-type circuits used for       
           data transmission                                    

V.52       Characteristics of distortion and error-rate    (B)  1988    
           measuring apparatus for data transmission            

V.53       Limits for the maintenance of telephone-type    (B)  1988    
           circuits used for data transmission                  

V.54       Loop test devices for modems                    (B)  1988    

V.55       Specification for an impulsive noise measuring  (B)  1988    
           instrument for telephone-type circuits               

V.56       Comparative tests of modems for use over        (B)  1988    
           telephone-type circuits                              

V.57       Comprehensive data test set for high data       (B)  1988    
           signalling rates                                     

V.100      Interconnection between public data networks    (B)  1988    
           (PDNs) and the public switched telephone             
           networks (PSTN)                                      

V.110      Support of data terminal equipments (DTEs) with R1   09/92
           V-series type interfaces by an integrated            
           services digital network (ISDN)                      

V.120      Support by an ISDN of data terminal equipment   R1   09/92
           with V-series type interfaces with provision         
           for statistical multiplexing                         

V.230      General data communications interface layer 1   (B)  1988    
           specification                                        


Date of last update: 13 Oct 1992

----------------------------------------------------------------------

-- 
Markus Kuhn, Computer Science student -=-=- University of Erlangen, Germany
Internet: mskuhn@immd4.informatik.uni-erlangen.de  |  X.500 entry available
--- Wer, wie, was? Wieso, weshalb, warum? Wer nichts fragt bleibt dumm. ---

-- 
   _________________________________________________________________________
   Wolfgang Henke     Data lanes not car pool lanes      wolfgang@netcom.com