CARD TRANSLATOR FOR NATIONWIDE DIALING 1043 



ing new ones in the machine. This can be done in a very short time and 

 requires less out-of-service time for the equipment. 



CARD FILE 



A card is provided for each area code and also one for each office code 

 that must be translated in a particular CSP, the cards representing 

 destinations. The cards are lined up in a box as in a filing drawer with 

 tabs along the bottom of the cards resting on select bars which run the 

 length of the box. It is by operating the select bars in combinations, 

 depending upon the code, that the particular card for the destination 

 is selected. Each card, as shown in Fig. 3, has tabs, one for each select 

 bar along the bottom edge. The information presented to the card 

 translator for the selection of a card is in the form of code digits on a 

 two-out-of-five basis. Each card is coded by removing all of the tabs ex- 

 cept those that represent the particular combination of select bars 

 for the particular code. When a code is presented to the translator, a 

 combination of select bars corresponding to the code is lowered and 

 the card having all tabs removed except those that were resting on the 

 lowered selects bars will be selected while all other cards will remain 

 in their normal positions. 



The groups of tabs labeled. A, B, C, D, E and F (Fig. 4) are for the 

 six code digits. For each digit, two tabs remain, since the digits are 



ENLARGED HOLE FOR USE WITH 



(AS REQUIRED BY CODING) CARD LIFT BAIL 



FOR USE WITH CARD 

 LIFT BAIL AND TO UNENLARGED HOLE "^OR USE WITH 



CLEAR BIN BAR (118 BEFORE CODING) BULK HANDLING TOOL 



WIDE TAB FOR CARD \ ALL TABS REMOVED EXCEPTING ^ '^ ?,'?,>' ^.^k.^I,^, u 



SUPPORT BAR THOSE ASSOCIATED WITH OPERATED CODING AND BULK 



FOR USE WITH ^^^^ SELECT AND CARD SUPPORT BARS HANDLING TOOLS 

 CODING TOOL 



Fig. 3 — Typical coded card as seen from the phototransistor side. 



