Term
| Coaxial loop resistance is: |
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Definition
| The resistance of its semi-conductor + the sheath |
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Term
| The type of power supply that allows for continuous power without commercial power is: |
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Definition
|
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Term
| The purpose of the line power supply is: |
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Definition
| Reduces the secondary power (115 or 230 VAC) to the 60 or 90 VAC for insertion on the plant |
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Term
| The placement of the power supply is based on: |
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Definition
| System design and the type of power supply needed |
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Term
| The power supplys batteries in a stand by unit are: |
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Definition
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Term
| The reduction of voltage in a transformer is known as: |
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Definition
|
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Term
| The conversion of DC power to AC power is: |
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Definition
|
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Term
| This passively combines up to 90V from the power supply and the networks RF signals: |
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Definition
| (LPI) line power inserter |
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Term
| The LPI can provide as well as AC and RF: |
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Definition
| Bi directional power capabilities |
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Term
| The type of powering that is most common today: |
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Definition
| A distributed powering architecture |
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Term
| A power supply is placed to power a small area: |
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Definition
| About 6 amps in either direction |
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Term
| In a centralized powering design there is: |
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Definition
| One power supply per node and located near the node and provides power to all actives served by that node |
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Term
| The 2 types of power supply voltages used are: |
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Definition
|
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Term
| The current at the output of one device will be: |
|
Definition
| Equal to the input of the next |
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Term
| In a broadband network, voltage gets: |
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Definition
| Lower the further away from the power supply |
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Term
| Loss of voltage on the span is caused by: |
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Definition
| The current and the spans resistance |
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Term
| The amount of resistance in a span of cable depends on the: |
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Definition
| The length of cable and the diameter |
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Term
| Batteries should be inspected: |
|
Definition
| Every 3-6 months for optimal performance |
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Term
| While checking battery voltage the difference in voltage from one battery to another: |
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Definition
|
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Term
| A byproduct of the charging process for batteries is: |
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Definition
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Term
| Before placing a load on batteries: |
|
Definition
| Check for cracks, leaks, and swelling |
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Term
You should not use batteries that a date code is:
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Definition
|
|
Term
| Battery and terminal connecting wires should be tightend: |
|
Definition
| 75 in/lbs during install and 60in/lbs during maintenance |
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Term
| The high pass filter in a LPI will allow: |
|
Definition
| Only the high frequency RF to pass from port to port |
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Term
| The low pass filter in an LPI: |
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Definition
| Directs the flow of the lower frequency AC power to prevent signal leakage in the power supply |
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Term
| What size batteries are used in most CATV applications |
|
Definition
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