|       | DPLC10 Digital  
        Power    
        Line Carrier A basic distinction is made between analog (aPLC) and digital (dPLC) 
              systems. Newer digital systems allow more efficient use of the 
              frequency band, however, traditional analog PLC systems offer more 
              advantages than the most of dPLC in cases where transmission 
              conditions are worse (low signal / noise ratio, for example). 
              Since PLC service for power supply utilities, it is emphasis to keep transmission security for some 
              important data in cases where transmission conditions are worse. 
              In order to reduce the conflict between transmission capacity and 
              security, Real-time  
              Dynamic Speed Adaptation (RDSA) is used by DPLC10, which allows to  
              real-time adjusting the date rate according to the transmission  
              requesting, at same time, no data transmission interruption or  
              data error happens during adjusting. 
              
              
               
               Overview 
           
            
              SSB  
              and  Quadrature Amplitude Modulation 
              (QAM).  
              User programmable on site 
               
              
              Extended  
              carrier frequency range up to 1000 kHz, duplicating the useful  
              frequency band 
               
              
              Integrated  
              versatile multiplexer for voice and data 
               
              
              
              G.723  
              & AMBE  voice 
              compression solution that provides exceptional voice quality at 
              rates as low as 6.3/5.3 or 2.4 kbps.
               
              
               Integrate   
              a 24x24 voice switch matrix without blocking.  
                
              
              VF telephone user interfaces: 4-wire EM, FXS and 
              FXO.
               
              
              
              Narrowband data transmission: The narrowband modems   
              (M9603) support the transmission of unformatted (asynchronous   
              or synchronous transparent) data with speeds up to 1200 bps.
              
              
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