Translators and identifiers in switching systems 



5J5 



each of four groups of leads from the "thousands" and ''hundreds" switches. 

 This results in an output code of one marked lead in each of the three 

 groups of non-decimal output code marking leads. 



The operation is simple. The IB code is determined directly from the 

 pairing of consecutive terminals on the thousands register. The IG code is 



THOUSANDS ^o^ 

 REGISTER 



HUNDREDS ° c/^ 

 REGISTER 



lllllllil llllllllll 





Mill 



llllllllll 



INPUT CODES 



THOUSANDS 

 o|-|c\i}fn|'*j>n|cD|t^|oo|cn| 



THOUSANDS 

 o|-|fvi fo{^|'n|(o|f--}oo}o{ 



HUNDREDS 

 in}«)|i^}oo|o>| 



HUNDREDS 

 o| -| (\j| (o} •<t } >n| (d{ r- j ooj o} 



^ilH 



;-) 



EVEN 



-—TRANSLATOR 



0|-JOJ(0^| 



IB 



FB 



OUTPUT CODES 



Fig. 1 — Fixed, systematic translator used in panel system for converting thousands 

 and hundreds digits of called numbers to 3-part code for control of non-decimal selections. 

 (Changes information) 



derived from a combination of the settings of the thousands and hundreds 

 switches, which with the combining relay gives one of four possible code 

 marks depending on whether the thousands number is even or odd and 

 whether the hundreds number is in the first five or last five series. The FB 

 code, one out of five, is derived from the hundreds switch by pairing the 

 numbers in the first five series with those in the last five. 



