Parameters (FAX Class 2.0)


Three parameters have lists of sub-parameters. This section identifies which sub-parameter values are supported by Hayes modems. The parameters +FCC, +FIS, and +FCS share a common set of sub-parameters. The parameter meanings are:
+FCC     DCE capabilities parameters         

                                             

                                             

+FIS     Current session parameters          

                                             

                                             

+FCS     Current session results             

                                             
The sub-parameters and the minimum set of values supported by Hayes modems are listed below. The values marked with * are a subset of the option values specified in [2] and are optional in Hayes modems. The optional values may be supported by particular Hayes products, depending on market needs. The values not marked with * are required in Hayes modems.
Name Description      Value    Meaning                                                                              

                                                                                                                    

                                                                                                                    

VR  	vertical          
0        normal                                                                               

resolution                                                                                                           

                                                                                                                    

                      1        fine                                                                                 

                                                                                                                    

                                                                                                                    

BR bit rate           0        2400 bits/s                                                                          

                                                                                                                    

                      1        4800 bits/s                                                                          

                                                                                                                    

                      2        7200 bits/s                                                                          

                                                                                                                    

                      3        9600 bits/s                                                                          

                                                                                                                    

                      4        12000 bits/s                                                                         

                                                                                                                    

                      5        14400 bits/s                                                                         

                                                                                                                    

                                                                                                                    

WD page width         0        1728 pixels in 215 mm                                                                

                                                                                                                    

                      *1       2048 pixels in 255 mm                                                                

                                                                                                                    

                      *2       2432 pixels in 303 mm                                                                

                                                                                                                    

                      *3       1216 pixels in 151 mm                                                                

                                                                                                                    

                      *4       864 pixels in 107 mm                                                                 

                                                                                                                    

                                                                                                                    

LN page length        0        A4, 297 mm                                                                           

                                                                                                                    

                      1        B4, 364 mm                                                                           

                                                                                                                    

                      2        unlimited length                                                                     

                                                                                                                    

                                                                                                                    

DF data               0        1-D modified Huffman                                                                 

                                                                                                                    

compression           *1       2-D modified Read                                                                    

                                                                                                                    

format                *2       2-D uncompressed mode                                                                

                                                                                                                    

                      *3       2-D modified  read                                                                   

                                                                                                                    

                                                                                                                    

EC  error correction  0        disable ECM                                                                          

                                                                                                                    

                      *1       enable, 64 bytes/frame                                                               

                                                                                                                    

                      *2       enable, 256 bytes/frame                                                              

                                                                                                                    

                                                                                                                    

BF  binary file       0        disable                                                                              

transfer                                                                                                             

                                                                                                                    

                      *1       enable                                                                               

                                                                                                                    

                                                                                                                    

ST  scan time/line               all values are supported                                                          

                                                                                                                   
Click here to return to the Contents page.