FIGURE 26A. Telephone Stations Connected
FIGURE 26B. Station Interconnection of
to Switchboard.
Telephone System Without
Switchboard.
c. With the circuit arrangement of figure 26A, all conversations take place through the switchboard. A person at
station A wishing to call a person at station B first signals the switchboard operator. When the operator replies, the caller
supplies the name or number of the station being called--station B, in this case--and the operator then completes the
connection at the switchboard and signals station B. When station B answers, conversation between the two telephone
stations proceeds.
32.
Telephone Central Office.
A switchboard or other switching device, together with associated equipment, is located at a telephone
central office. More accurately, they comprise the telephone central office. The equipment may include a
switchboard of one or more positions so interconnected that telephone service can be given to a greater
number of telephone stations in an area. Switchboard is the name given to that component of a telephone system
where connections are made among the associated lines or stations by an operator. The service requirements
determine the capacity of the switchboard, and the traffic (number of connections) requirements determines the
number of operators attending at the switchboard. As switchboards increase in size, beyond the ability of one operator
to handle the traffic, and a second operator is engaged at the switchboard, the switchboard is designed especially
to accommodate the second operator, and to distribute the line jacks in such a way that the traffic load is distributed
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