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The 4003 has the following system wiring configurations: 
 
•  Adjunct to the 4001 System 
   
•  Adjunct to the 4002 System 
   
•  Slave to the 4020 System 
   
•  Stand-Alone System 
   
•  Remote Microphone. 
 
The 4003 terminal blocks are labeled with a "TB number", and each terminal on 
the terminal block has a number. (For example, Terminal No.1 on Terminal 
Block  No. 1 is labeled TB1-1.) 
 
Each terminal on the terminal block is also identified with an abbreviation of the 
circuit wire that is connected to it.  (For example, TB1-1 on the 565-358 Voice 
Controller Assembly is labeled "RUI -".) 
 
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System Wiring Configurations 
Configurations 
Important Notes: