The ZTE C620 OLT (Optical Line Terminal) is a crucial component in fiber optic communication networks, designed to connect multiple users to a central network point. Here's a concise introduction to its key attributes, model specifications, and parameters:

1. PRSF: This stands for Power Supply Redundancy Switching Function, which ensures that the OLT has a backup power supply to maintain operation in case the primary power source fails.

2. DC: Refers to the Direct Current power supply, which is essential for the operation of the OLT.

3. PRAF: This is the Power Redundancy Automatic Failover, a feature that automatically switches to a backup power source if the primary one fails.

4. AC: Alternating Current, which is another type of power supply that the OLT can use.

5. PRAC: Power Redundancy Automatic Conversion, a feature that allows the OLT to switch between different power sources seamlessly.

6. AC SPUF: This could refer to an Advanced Configuration or Setup feature for the OLT, although the acronym is not standard and might require clarification from ZTE.

7. Master Key: This term is often used in telecommunications to refer to a primary control unit or a set of commands that manage the overall operation of a system.

Model Specifications:

  The ZTE C620 OLT is designed to support various service types, including voice, data, and video.

  It is capable of handling a high number of subscribers, making it suitable for both residential and business environments.

  The OLT supports advanced technologies such as GPON (Gigabit Passive Optical Network) for high speed data transmission.

Parameters:

  Capacity: The C620 can support a large number of users, with the ability to scale as network demands increase.

  Speed: It offers high speed data transmission capabilities, with support for gigabit Ethernet services.

  Redundancy: As mentioned, the OLT has built in redundancy features to ensure continuous service even in the event of power failures.

  Compatibility: It is designed to be compatible with a wide range of network equipment and standards.

The ZTE C620 OLT is a robust and versatile solution for modern communication networks, offering high reliability and performance. Its key attributes and specifications make it an ideal choice for service providers looking to deliver advanced services to their customers.