Server Deployment in Telephone Switching Station
Question
An administrator is tasked with deploying a server in a telephone switching station.
Which of the following voltages will MOST likely be available at the facility?
Answers
Explanations
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A. B. C. D.A.
Telephone switching stations typically use direct current (DC) power, which is more reliable and easier to maintain than alternating current (AC) power.
Of the options given, the voltage that is most commonly used in telephone switching stations is -48VDC (answer A). This voltage is used to power the equipment and is provided by a rectifier that converts AC power from the electrical grid to DC power.
120VDC (answer B) is not a commonly used voltage in telephone switching stations, and it may not be readily available from the electrical grid.
220VAC (answer C) and 440VAC (answer D) are both AC voltages and are not commonly used in telephone switching stations. While it is possible that the facility may have AC power available, it would need to be converted to DC power for use in the server equipment, which adds complexity and potential points of failure.
Therefore, the correct answer is A. -48VDC.
