number five crossbar switch

GPTKB entity

Statements (24)
Predicate Object
gptkbp:instanceOf telephone switch
gptkbp:alsoKnownAs gptkb:5XB_switch
gptkbp:capacity up to 10,000 lines
gptkbp:developedBy gptkb:Bell_Labs
gptkbp:hasComponent receiver
sender
crossbar switch matrix
line link frame
marker system
trunk link frame
https://www.w3.org/2000/01/rdf-schema#label number five crossbar switch
gptkbp:introducedIn 1948
gptkbp:predecessor panel switch
step-by-step switch
gptkbp:replacedBy electronic switching system
gptkbp:successor gptkb:No._1_Electronic_Switching_System
gptkbp:technology electromechanical switch
gptkbp:usedFor telephone call switching
gptkbp:usedIn gptkb:public_switched_telephone_network
gptkb:Canada
gptkb:United_States
gptkbp:usedUntil 1980s
gptkbp:bfsParent gptkb:Bell_System
gptkbp:bfsLayer 5