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BT 2+8 Manual

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Installation and maintenance manual
2+8
Contents
 Inoducon
 
 
 
 
      
 
 Insllation procedures
   
 
 
 
 
 
 
 
    
 
     
           
 
         
 
 Subsidia connecon (pi-backing)
 Se precauons and switch on
 Proamming
 Commissioning the system .  
    
 
 
 Faulng and maintenance
 Tones and rinng
 Numbering plan
 Statuto informaon
 Notes

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 



Contents
 
 +     
     
 
  
      
        
   
 
        

    .  
 












 Introduction









 Central Control Unit





  

 Systemphone






 Telephones



 Modes of working








1371Issue3(4/91)
Inoduction
1-1

  
 
2  8 ccu








 
 
 



 
 
 

 






 















 
 







 







 






 






 

 







   
      
      
      
      
      
      
      
      
      


 

 Electro-static Precautions (ESP)

 






 

 






 Installation procedures
 Equipment required




 







 Location for Central Control Unit







 






 Mounting the CCU






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