DCC Impulses Column - 2
        
        
          1: Loco with a short cab address of 4 – I run it as a long
        
        
          address on NCE by programming it as a long address and
        
        
          selecting it as 04.
        
        
          
            1
          
        
        
          
            Types of Addresses
          
        
        
          There are three types of addresses:
        
        
          Short, stored in CV 1
        
        
          Long, stored in CVs 17 & 18
        
        
          Consist, stored in CV 19
        
        
          Initially, DCC systems only recognized addresses from 1 to 127
        
        
          and they were stored in CV 1. Storing a value of zero (0) in CV1
        
        
          will force the decoder OUT of DCC mode and into using an alter-
        
        
          nate power source defined by CV 12. Usually that is DC mode.
        
        
          It was realized quickly that limiting the system to 127 rather
        
        
          arbitrary numbers was a serious limitation and the concept of
        
        
          the long, or extended, (sometimes incorrectly called 4-digit)
        
        
        
        
          MRH-Feb 2013