Onu s pigtail type

GPON and XGS-PON ONUs typically use single-mode fiber pigtails with SC/PC or SC/APC connectors. Common Pigtail Types for ONUSC/PC and SC/APC connectors are the most widely used pigtail types for ONU devices in GPON and XGS-PON networks. These connectors are attached to single-mode fiber and connect the ONU to the optical distribution network.

SC/PC (Standard Connector / Physical Contact): Provides a flat physical contact for fiber alignment, suitable for general GPON applications. SC/APC (Angled Physical Contact): Features an 8-degree angled end-face to reduce back reflection, commonly used in high-performance GPON and XGS-PON networks. Wavelength and FunctionONU pigtails are part of BOSA (Bi-Directional Optical Sub-Assembly) modules, which integrate the transmitter, receiver, and WDM filter into a single fiber connection.

Typical wavelength configurations include: GPON ONU: 1310 nm burst-mode transmitter (Tx) and 1490 nm continuous-mode receiver (Rx) for downstream and upstream communication. XGS-PON ONU: 1270 nm transmitter and 1577 nm receiver, supporting higher data rates and bidirectional communication over a single fiber.

Installation Considerations

Ensure the pigtail connector type matches the OLT or splitter ports in the network. SC/APC is preferred in networks sensitive to back reflection, while SC/PC is acceptable for standard GPON deployments. Single-mode fiber is standard for long-distance PON applications, typically up to 20 km for GPON Class B+ devices.

In summary, ONU devices use single-mode fiber pigtails with SC/PC or SC/APC connectors, integrated into BOSA modules, with specific wavelengths depending on GPON or XGS-PON standards. Proper selection ensures optimal network performance and compatibility.