ATIS Telecom Glossary
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pilot-make-busy (PMB) circuit
1. A circuit arrangement by which trunks provided over a carrier system are made busy to the switching equipment in the event of carrier system failure, or during a fade of the radio system. 2. In COMSEC, see traffic padding.

 

 

 

 

 

 

 

 

 

 



 
These definitions were prepared by ATIS Committee PRQC
 
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