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TB022  HY-II 328X Carriage Control problem on JES2
 
TB022 - HY-II 328X Carriage Control problem on JES2


                J.D.S. MicroProcessing Technical Bulletin             
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Date Written: 09/20/89                   Submitted by:  Jim Beaky   
    Sequence: 1 of 1                           FileID: 4.TB022      
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           HY-II 328X Carriage Control problem on JES2                  
                                                                        
One of our HYDRA-II customers reported a problem where the   
vertical spacing of their 3286 print was not functioning properly.      
The problem turned out to be a gen parameter within JES2 for the printer
devices.                                                                
                                                                        
This parameter for 328X printers determines whether or not carriage     
control is to be supported. According to the IBM documentation the two  
selections available are "CCTL" and "NO CCTL". Further, IBM doc. also   
states that "CCTL" should ONLY be specified in SNA environments.        
                                                                        
Since Assemblies of God is a non-SNA shop they specified that parameter
to "NO CCTL".  When their 3286 print failed, they ran traces which      
indicated that no carriage control information was reaching the printer.
                                                                        
When they changed this parameter to "CCTL" so carriage control data     
would be passed to the printer, their problem was resolved.             
                                                                        
The two red flags to watch for are:                                     
                                                                        
           1.     JES2                                                  
           2.     The IBM documentation that specifies that for these   
                  328X printers CCTL should ONLY BE USED in SNA environ-
                  ments. We have just proven this wrong for devices     
                  connected to HYDRA II.