APPLYING CARRIER TELEPHONE SYSTEMS 

 TABLE 2 



553 



Detailed Plan for Splitting Quads in Nineteen Consecutive Carrier 



Repeater Sections for a Ten-Quad Group Arranged 



FOR Type K Cable Carrier Operation 



Note: Above numbers are pair number designations at balancing bay cable ter- 

 minals of pairs which are connected to Sealed Test terminal jacks as indicated. 



pair 3, etc. Using this plan two systems are exposed to each other 

 on the same quad only once in 19 carrier repeater sections. Begin- 

 ning with the 20th section the plan is repeated so that between New 

 York and Charlotte two given systems operate together on the same 

 quad in only two repeater sections. Planned splices were made at 

 each end of each carrier repeater section so that after the quads had 

 been split in a definite way at one end of a section, a complementary 

 splice was made at the other end, to rearrange the pairs into a given 

 order as they go through each repeater office. Each carrier pair has 

 been made to appear in the same position at each carrier testboard 

 throughout the 19 types of planned splice sections. This is for con- 

 venience in maintaining and identifying them, because carrier systems 

 must be assigned to the same carrier pair in a series throughout the 

 19 types of planned splice sections if the quad splitting plan is to be 

 completely effective. 



The poling splice and the planned splices were, of course, not re- 



