Miscellaneous North Electric Switching Systems

(last updated: 16-May-2015 09:31)
 

NX-1D

  1. "NX-1E, an Electronically Controlled Crossbar Switching System", ITCT COM-18:6 Dec 1970 pgs 734-739.

TSD

  1. "Toll Service Desk: An Improved Concept of Telephone Toll Traffic Control", ITCT COM-17:6 Dec 1969 pgs 606-615 (also ICC'69).