The ZTE Small OLT 2U ZXA10 C 6.2 million M OLT AC/DC is a compact and powerful Optical Line Terminal (OLT) designed for small to medium sized deployments in fiber to the home (FTTH) networks. Here's a concise introduction to its key specification parameters:

1. Form Factor: The 2U design indicates that the OLT is a 2 unit high rack mountable device, making it suitable for space constrained environments.

2. Capacity: With a capacity of 6.2 million subscribers, this OLT is designed to support a large number of users, making it ideal for dense urban areas or high growth regions.

3. Power Supply: The AC/DC power supply option allows for flexibility in power source, accommodating different electrical infrastructures.

4. Technology: The OLT supports GPON (Gigabit Passive Optical Network) technology, which is a point to multipoint access method used for broadband access. It allows for high speed data transmission over fiber optic networks.

5. Scalability: The system is designed to be scalable, allowing network operators to expand their services as demand grows without the need for a complete system overhaul.

6. Management: The OLT includes advanced management features that enable remote monitoring and control, simplifying network management and reducing operational costs.

7. Security: It incorporates robust security features to protect against unauthorized access and data breaches, ensuring the integrity of the network.

8. Interoperability: The device is designed to be compatible with a wide range of ONUs (Optical Network Units) and other network equipment, ensuring a smooth integration with existing infrastructure.

9. Energy Efficiency: The OLT is likely to be energy efficient, reducing the overall power consumption and operational costs for the network.

10. Reliability: ZTE's OLTs are known for their reliability, with features such as redundant power supplies and hot swappable components to minimize downtime.

This OLT is a comprehensive solution for service providers looking to deliver high speed broadband services to a large number of subscribers in a compact and efficient package. Its features cater to the needs of modern telecommunications networks, emphasizing performance, scalability, and ease of management.