In a hybrid fiber/coax (HFC) fiber optic node, what are typical voltages produced by DC power supplies?

In a hybrid fiber/coax (HFC) fiber optic node, what are typical voltages produced by DC power supplies?

• A. +5, +15, and -24 VDC
• B. +5, +12, and +48 VDC
• C. +5, +12, and +24 VDC
• D. +6, +12, and +24 VDC

Answer: (C)

In hybrid fiber/coax (HFC) systems, the DC power supplies are utilized to power various components such as amplifiers, nodes, and other electronic devices within the network. The correct choice, which includes +5, +12, and +24 VDC, represents a typical range of voltages used in the operation of HFC nodes. The +5 VDC is commonly used for powering digital circuitry and microcontrollers that manage the network operations. The +12 VDC is essential for powering various components like video and RF amplifiers, ensuring effective transmission of signals. The +24 VDC output is often used to provide higher power levels for serving larger deployments or for components that require more voltage for efficient operations. These voltage levels reflect industry standards, ensuring compatibility and functionality across the diverse components found in HFC systems. The reliability of a power supply in these ranges helps maintain signal integrity and operational stability within the network.

In hybrid fiber/coax (HFC) systems, the DC power supplies are utilized to power various components such as amplifiers, nodes, and other electronic devices within the network. The correct choice, which includes +5, +12, and +24 VDC, represents a typical range of voltages used in the operation of HFC nodes.

The +5 VDC is commonly used for powering digital circuitry and microcontrollers that manage the network operations. The +12 VDC is essential for powering various components like video and RF amplifiers, ensuring effective transmission of signals. The +24 VDC output is often used to provide higher power levels for serving larger deployments or for components that require more voltage for efficient operations.

These voltage levels reflect industry standards, ensuring compatibility and functionality across the diverse components found in HFC systems. The reliability of a power supply in these ranges helps maintain signal integrity and operational stability within the network.