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FIIG:  T187-D

Entry Date:  Apr-01-1974

Concept:  

Status:  A

Applicability:  DF

Type:  0

Definition:  An item which consists of a number of telephone switch bank assemblies wired in multiple to a terminal board at one end as a complete unit. Each switch bank assembly is composed of a series of fixed contacts which form a portion of a single or two motion telephone stepping switch. The complete item is intended to be mounted on a switch shelf in a dial type central office.

Basic INC:  70248

Basic Name:  SWITCH

Description:  1. A device which completes, interrupts, or changes the connections in one or more electrical circuit(s) by electrical, electronic, manual or mechanical actuation, or as a result of changes in ambient temperature. It includes items consisting of individually separable switches which are physically interlocked (e.g., one button returns when the other is pushed), which have a common actuator, or are electrically connected. Excludes: items which perform the same function by self-produced thermal action, such as relays, circuit breakers, fuses, or motor starters.