The 2.5G CWDM SFP series delivers high‑performance 2.5 Gbps optical links across multiple coarse wavelengths in the 1270 – 1610 nm spectrum (20 nm spacing per ITU‑T G.694.2).
Built on the SFP MSA SFF‑8472 platform, these hot‑pluggable modules support data rates up to 2.67 Gbps (OC‑48/STM‑16) and reach distances of up to 80 km over single‑mode fiber.
Ideal for CWDM multiplexed systems, Metro Ethernet uplinks, and multi‑channel transport networks, the 2.5 G CWDM SFP family maximizes fiber utilization while reducing overall infrastructure cost.
Technical Specifications
- Data Rate: 2.5 Gbps (OC‑48 / STM‑16 / 2.5G Ethernet)
- Wavelengths: 18 CWDM channels — 1270 ~ 1610 nm (20 nm spacing)
- Distance Options: 10 km, 40 km, 80 km (DFB laser + PIN/APD receiver)
- Optical Connector: Duplex LC (single‑mode fiber)
- Laser Type: DFB CWDM laser with integrated wavelength stabilization
- Power Consumption: ≤ 1.5 W (typical)
- Digital Diagnostics: DDM/DOM per SFF‑8472 for real‑time monitoring
- Compliance: IEEE 802.3 z • ITU‑T G.694.2 • SFP MSA SFF‑8472 • GR‑253‑CORE • RoHS 6
Main Features
- Full support for 2.5 Gbps CWDM channels in 1270 – 1610 nm range (ITU‑T G.694.2)
- Hot‑pluggable SFP footprint for plug‑and‑play service deployment
- Available channel spacing: 20 nm grid for 18 available links on one fiber pair
- Low power consumption and DDM enabled for system monitoring
- Supports 10 ~ 80 km SMF transmission distances
- Interoperable with CWDM MUX/DEMUX solutions for scalable metro links
- Compliant with SONET/SDH (OC‑48/STM‑16) and Gigabit Ethernet over CWDM networks
- Industrial ‑ grade (-40 °C to +85 °C) versions available for outdoor environments
Applications
- Metro and Regional CWDM Transport Networks
- OC‑48 (2.5 G) SONET/SDH Multiplexers and Add‑Drop Systems
- GPON/EPON Aggregation and Uplink Nodes
- Enterprise Core and Data Center Interconnects
- CWDM MUX/DEMUX Overlays for Fiber Capacity Expansion
- High‑density Optical Backbones and Metro Access Rings
Related Keywords: 2.5G CWDM SFP, CWDM 2.5G Transceiver, OC‑48 CWDM SFP, STM‑16 CWDM SFP, 2.5 Gbps CWDM Module, CWDM DFB SFP 2.5 G, MEFiber CWDM SFP Module.
FAQ – 2.5G CWDM SFP Optical Transceivers
1. What is a 2.5G CWDM SFP module?
It is a Small Form‑Factor Pluggable transceiver that operates at 2.5 Gbps and transmits on a specific CWDM wavelength within the 1270–1610 nm band.
2. How many wavelength options are available?
The CWDM grid offers 18 channels spaced by 20 nm from 1270 nm to 1610 nm per ITU‑T G.694.2.
3. What is the maximum transmission distance?
CWDM SFPs are available for 10 km, 40 km, and 80 km links over single‑mode fiber.
4. Which applications use 2.5G CWDM SFP modules?
They are used in metro transport systems, OC‑48/STM‑16 SONET/SDH rings, and CWDM MUX/DEMUX deployments for fiber optimization.
5. Do 2.5G CWDM SFPs support digital diagnostics?
Yes. SFF‑8472 compliant versions offer DDM/DOM to monitor temperature, bias current, and optical power in real‑time.
6. Can 2.5G CWDM SFPs mix with 1G or 10G channels on the same MUX?
Yes, as long as each wavelength is distinct and the CWDM MUX/DEMUX is designed for multi‑rate optics.
7. Are industrial temperature models available?
Yes, industrial (‑40 °C to +85 °C) variants are available for outdoor and telecom environments.
8. Why choose 2.5G CWDM SFPs over DWDM SFPs?
CWDM SFPs offer simpler implementation and lower cost for moderate channel counts (≤ 18) in metro applications, whereas DWDM targets dense long‑haul networks.