The ZTE ZXA10 C620 OLT (Optical Line Terminal) is a device designed for fiber to the home (FTTH) deployments. It is part of ZTE's suite of equipment for broadband access solutions. Here's a concise overview of its key specification parameters:

1. Architecture: The ZXA10 C620 is a GPON (Gigabit Passive Optical Network) OLT that supports high speed data, voice, and video services over a single fiber.

2. Capacity: It is capable of serving up to 1024 GPON ONUs (Optical Network Units), making it suitable for large scale deployments.

3. Bandwidth: The system provides up to 2.5 Gbps downstream and 1.25 Gbps upstream bandwidth per PON (Passive Optical Network), ensuring high speed connectivity for users.

4. Interfaces: The OLT comes with multiple interfaces, including GE (Gigabit Ethernet), E1/T1, and P2P (Point to Point) interfaces for flexibility in network configurations.

5. Scalability: It is designed to be scalable, allowing for easy expansion as the network grows or as demand increases.

6. Redundancy: The ZXA10 C620 supports 1+1 redundancy for critical components, ensuring high reliability and minimal downtime.

7. Management: It includes a comprehensive network management system that allows for remote monitoring, configuration, and troubleshooting, simplifying network operations.

8. Security: The OLT incorporates various security features to protect against unauthorized access and data breaches, including encryption and authentication mechanisms.

9. Power Efficiency: Designed with energy saving features, the ZXA10 C620 helps reduce operational costs by minimizing power consumption.

10. Compliance: The device adheres to industry standards and is compliant with relevant regulations, ensuring interoperability with other network equipment.

11. Environment: It is built to withstand various environmental conditions, making it suitable for both indoor and outdoor installations.

12. Software Features: The OLT supports advanced software features such as dynamic bandwidth allocation, QoS (Quality of Service) management, and VLAN (Virtual Local Area Network) support, which are crucial for providing a high quality user experience.

This summary provides a clear and distinct overview of the ZTE ZXA10 C620 OLT's key specification parameters, highlighting its capabilities and features that make it a robust choice for FTTH networks.