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Meanings and definitions for DATU
What does DATU stand for? What does DATU mean?
- Direct Access Test Units (DATUs) are special PSTN phone numbers that terminate at the central office switch in a telephone company's local exchange that provide switchmen and telco technicians with a circuit for testing lines in various ways.Among the many things a DATU can do are:
Make certain electrical connections, such as shorting a line's tip to ring, tip to ground, or ring to ground.
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