OLT in FTTH

OLT in FTTH ZTE C320 (full name ZXA10 C320) is a compact, high-density, full-service XPON converged optical access platform (OLT) launched by ZTE. It is designed for next-generation optical networks and is primarily positioned to address the deployment needs of FTTH (Fiber to the Home), FTTB (Fiber to the Building), and enterprise-level converged services. It is suitable for space-constrained and low-density access scenarios, and combines carrier-grade reliability with flexible scalability. It is one of the core devices for small and medium-sized operators, campuses, and enterprises to build networks.

- Compact Design, Saving Deployment Space: Utilizing a 1U or 2U 19-inch rack-mount chassis, its compact size makes it suitable for space-constrained scenarios such as central data centers, remote cabinets, and multi-residential units (MDUs). Deployment is flexible and convenient, making it one of the industry's highest-density compact OLT devices.

- Multi-Protocol Compatibility, Full Service Support: The same platform supports multiple access technologies including GPON, EPON, XG-PON1, XGS-PON, and P2P, ensuring compatibility with diverse access scenario requirements. It also supports high-speed internet (HSI), IPTV, VoIP, mobile backhaul, VPN, and other full-service support, achieving one-stop access aggregation and management control.

- High-performance configuration with ample access capacity: Backplane capacity up to 420Gb/s, switching capacity up to 128Gb/s, a single chassis can support up to 32 G/EPON ports and 96 P2P GE ports, supporting a maximum split ratio of 1:256, and a single device can support up to 4096 GPON users, meeting medium-to-large-scale access needs.

- High-reliability design: Adopts a distributed switching architecture, separating the data plane and control plane to avoid congestion; supports 1+1 redundancy backup for the main control board and power module, PON interfaces have Class B protection with a recovery time of less than 50 milliseconds; fan modules support N+1 redundancy and hot-swappable operation, ensuring uninterrupted equipment operation.

- Intelligent management and energy saving: Supports IEEE 1588v2 high-precision time synchronization and synchronous Ethernet, with comprehensive H-QoS three-layer hierarchical control for refined operation; uses low-power chips and intelligent temperature-controlled fans, supporting passive cooling options to reduce total cost of ownership.

- Strong Compatibility and Low Upgrade Costs: 

Supports seamless migration from GPON to XGS-PON without replacing the equipment chassis; only the interface board needs to be replaced to upgrade to 10G symmetrical services, protecting initial hardware investments and providing a clear technology evolution path.

- Flexible Deployment and Adaptability to Multiple Scenarios:

Supports OLT placement and remote installation, enabling flexible implementation of various networking modes such as daisy-chain, cascading, and ring networks, adapting to non-dense access scenarios for different user groups in parks, communities, enterprises, and towns.

- Convenient Operation and Maintenance, Reduced Management Costs:

All field-replaceable units (FRUs) support hot-swapping, allowing for tool-free replacement of PON boards, power supplies, fans, and other components; built-in OTDR functionality enables real-time monitoring of optical line status, facilitating rapid fault location and troubleshooting.

- Low Latency, Guaranteed Service Experience:

Transmission latency is less than 100 microseconds, stably supporting latency-sensitive services such as gigabit symmetrical broadband, high-definition IPTV, and enterprise-level VoIP, meeting the SLA service level requirements of critical enterprise applications.

- Carrier Scenarios: Compatible with Tier 2 and Tier 3 internet operators for FTTH/FTTB broadband deployments in cities and towns, as well as municipal broadband projects, supporting high-speed internet access, IPTV, and voice services for a large number of households.

- Enterprise and Campus Scenarios: Suitable for enterprise campuses, office buildings, and campus networks, enabling full-service access for enterprise office work, monitoring, and voice, supporting mobile backhaul and VPN services to meet the refined operational needs of enterprises.

- Special Deployment Scenarios: Compatible with remote cabinets, outdoor data centers, and multi-resident units (MDUs) with limited installation space, serving as a small OLT node to address the fiber optic access needs of low-density users and reduce deployment costs.

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