CROSSBAR DLAL TELEPHONE SWITCHING SYSTEM 



117 



Fig. 20 — Battery supply feeders, power wiring, fusing, etc. 



accommodate five senders which may be of one type, or a combination 

 of both types. The crossbar switch shown on the right of each sub- 

 scriber sender unit, is a part of the sender circuit and is employed for 

 the purpose of registering the called numbers dialed by the subscribers. 



