Huawei GPON OLT Class C+ Optical Transceiver Module

The Huawei GPON OLT Class C+ optical transceiver is a high-performance PON module designed for compatible Huawei GPON Optical Line Terminal (OLT) equipment. It provides the optical interface between a GPON OLT service board and the passive optical distribution network (ODN), making it suitable for FTTH, FTTB, ISP, telecom, and enterprise fiber-access deployments.

GPON Class C+ Optical Interface

The module complies with GPON Class C+ optical-budget requirements and is designed for reliable transmission across passive optical networks containing fiber, connectors, splices, and optical splitters.

2.488Gbps Downstream / 1.244Gbps Upstream

Designed for standard GPON operation, the OLT transmits downstream data at approximately 2.488Gbps and receives upstream traffic at approximately 1.244Gbps, providing the asymmetric bandwidth used by GPON access networks.

1490nm TX / 1310nm RX

The module operates bidirectionally over a single strand of single-mode optical fiber. The OLT transmits downstream GPON signals at 1490nm and receives upstream ONU/ONT signals at 1310nm.

Class C+ Optical Power Budget

GPON Class C+ is designed around an optical path-loss budget of approximately 32dB. Compared with lower optical classes, this provides additional optical margin for demanding ODN designs involving longer fiber routes or higher splitter losses.

SC/UPC Single-Fiber Interface

Huawei GPON OLT optical modules commonly use an SC/UPC connector for connection to the optical distribution network. A single optical interface carries both upstream and downstream signals using wavelength-division multiplexing.

Designed for Huawei GPON OLT Platforms

Class C+ optical modules are used with compatible Huawei GPON service boards installed in OLT platforms such as the MA5600T, MA5603T, MA5608T and MA5800 families. Actual compatibility depends on the optical module part number, service-board type, hardware revision, and OLT software version.

Typical Applications

• GPON Optical Line Terminal (OLT)
• FTTH – Fiber to the Home
• FTTB – Fiber to the Building
• ISP Fiber Access Networks
• Telecommunication Access Networks
• Passive Optical Networks (PON)
• Enterprise Fiber Access
• Broadband Distribution Networks

Key Specifications

• Manufacturer: Huawei
• Product Type: GPON OLT Optical Transceiver Module
• Optical Class: Class C+
• PON Technology: GPON
• Fiber Type: Single-Mode Fiber (SMF)
• Operation: Single-Fiber Bidirectional
• OLT Transmit Wavelength: 1490nm
• OLT Receive Wavelength: 1310nm
• Downstream Rate: Approx. 2.488Gbps
• Upstream Rate: Approx. 1.244Gbps
• Class C+ Optical Path-Loss Budget: Approx. 32dB
• Typical Connector: SC/UPC
• Application: Huawei GPON OLT / FTTH Networks

Class C+ vs Class C++

Class C+ and Class C++ are not the same optical specification. Class C++ provides a higher optical budget than Class C+ and is intended for more demanding ODN conditions. When replacing an existing module, the required optical class should be selected according to the OLT service board, ONT/ONU equipment, network design, and optical-loss budget.