The 2.5G SFP transceiver family provides cost‑efficient 2.5 Gbps connectivity for Ethernet, SONET/SDH (OC‑48/STM‑16) and EPON/GPON uplink applications.
Compliant with IEEE 802.3z and SFP MSA SFF‑8431/8472, these hot‑pluggable optical modules offer enhanced‑speed transmission within the classic SFP form factor.
Typical models support 550 m to 80 km link distances on MMF or SMF using 850 nm, 1310 nm or 1550 nm lasers with Digital Diagnostics Monitoring (DDM/DOM).
Technical Specifications
- Data Rate: 2.5 Gbps (OC‑48 / STM‑16 / 2.5G Ethernet)
- Transmission Distance: 550 m (MMF) to 80 km (SMF)
- Wavelength Options: 850 nm · 1310 nm · 1550 nm
- Connector Type: LC Duplex (Standard) / Simplex (BiDi Variants)
- Laser Type: VCSEL / FP / DFB depends on reach and application
- Power Budget: 10 to 28 dB depending on model
- Power Consumption: ≤ 1.0 W with DDM support
- Compliance: IEEE 802.3z / ITU‑T G.957 / SFP MSA / RoHS 6 / GR‑253‑CORE
Main Features
- Hot‑pluggable SFP design for 2.5 Gb/s serial links
- Compatible with legacy and next‑gen network interfaces
- Multiple wavelength and distance options up to 80 km
- Support for DDM/DOM per SFF‑8472 for real‑time optical parameter monitoring
- Low power consumption and compact configuration
- Fully compliant with SFP MSA SFF‑8431 form factor
- Interoperable with Cisco, Juniper, Huawei, Nokia and other switch vendors
- Industrial temperature options (−40 °C to +85 °C) for outdoor and rugged environments
Applications
- 2.5 G Ethernet uplinks and aggregation links
- OC‑48/STM‑16 SONET/SDH transmission systems
- EPON/GPON ONU and OLT uplink interfaces
- Metro access and DSLAM backhaul connections
- Campus and industrial Ethernet networks requiring higher throughput than 1 G
Related Keywords: 2.5G SFP, 2.5G optical transceiver, OC‑48 SFP module, STM‑16 SFP, 2.5G Ethernet SFP, GPON SFP uplink, MEFiber 2.5G SFP transceiver, SFP 2.5 Gbps module.
FAQ – 2.5G SFP Optical Modules
1. What is a 2.5G SFP module?
It is a Small Form‑Factor Pluggable transceiver that supports 2.5 Gbps optical links for Ethernet, SONET (OC‑48), and GPON/EPON uplink applications.
2. Is the 2.5G SFP backward compatible with 1.25G SFP ports?
Some equipment may allow speed fallback via auto‑negotiation, but generally 2.5G SFP modules require port support for 2.5 Gbps operation.
3. What fiber types are supported?
Both multimode (MMF, e.g., 62.5/125 µm or 50/125 µm) and single‑mode (SMF, 9/125 µm) fibers can be used depending on model reach specifications.
4. What are the common link distances available?
Typical variants cover 550 m (MMF), 10 km (SMF), 40 km, and 80 km (1550 nm long‑haul models).
5. Does the 2.5G SFP support digital diagnostics?
Yes. Modules with SFF‑8472 compliance support DDM/DOM for real‑time monitoring of Tx/Rx power, bias current, and temperature.
6. Where are 2.5G SFP modules commonly used?
They are widely used for GPON/EPON uplinks, Metro Ethernet aggregation, and carrier backbone upgrades requiring more bandwidth than 1 G links.
7. Are BiDi (single‑fiber) versions available?
Yes. Single‑fiber BiDi models operate at 1270/1330 or 1490/1550 nm pairs to transmit duplex signals over one fiber.
8. Do industrial grade versions exist?
Yes, industrial temperature versions (−40 °C to +85 °C) are offered for outdoor GPON and industrial backhaul applications.