LESSON 2
TELEPHONE SYSTEMS
OBJECTIVE:
Action:
You will identify the components of a telephone system by their electronic symbol and
describe the operation of (1) a local-battery system, (2) a common-battery system, and (3)
analyze switchboard operation.
Conditions:
You will be provided the lesson material and a lesson exercise sheet.
Standard:
You must respond correctly to at least 17 of the 20 questions in the lesson exercise.
CREDIT HOURS:
2
TEXT ASSIGNMENT:
Read inclosed text
MATERIALS
REQUIRED:
Pencil or pen
SUGGESTIONS:
None
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