25G CWDM SFP28 LR 1350nm 10km
- Hot-pluggable SFP28 package
- Full-duplex transceiver module
- CWDM DFB transmitter and PIN receiver
- Compliant with SFF-8472, SFF-8431, SFF-8432, and SFP28 MSA Ethernet standards
- Maximum power consumption less than 1.75W
- Built-in Digital Diagnostic Monitoring (DDM)
- Power supply voltage 3.3V
- RoHS environmental standards compliant (lead-free)
- Class 1/1M product per IEC60825-1 requirements
- Meets Telcordia (Bellcore) GR-468-CORE reliability requirements
- Meets EMI and ESD requirements
Warranty : 30-Day Free Return, 3-Year Free Replacement, 5-Year Warranty, Lifetime After-sales Technical Support.
| Product Model | SFP-25G-CWDM10 | Vendor Name | Walsun |
| Form Factor | SFP28 | Data Rate | 25.78Gbps |
| Wavelength | 1270-1370nm | Distance | 10km |
| Connector | C Duplex | Cable Type | SMF |
| Transmitter Type | DFB | Detector Types | PIN |
| TX Power | -7~2dBm | Receiver Sensitivity | < -12dBm |
| Power Consumption | ≤1.75W | Operation Temperature | 0~70°C |
| DDM | Support | EMC | Support |
| Modulation | NRZ | CDR | TX & RX Built-in CDR |
| Protocols | SFF-8472, SFF-8431, SFF-8432, SFP28 MSA, CPRI, eCPRI | ||
Q: What models of 25G SFP28 optical modules are available?
A: Standard 25G SFP28 optical modules include SR, LR, and ER types. The 25G SFP28 SR optical module operates at a wavelength of 850nm and features a Vertical Cavity Surface Emitting Laser (VCSEL) transmitter, necessitating the use of 50/125µm OM3/OM4 multimode fiber. It supports transmission distances of 70 meters with OM3 and 100 meters with OM4. The 25G SFP28 LR and 25G SFP28 ER are single-mode modules, requiring OS2 single-mode fiber patch cords.
Colorful 25G SFP28 optical modules encompass CWDM SFP28 and DWDM SFP28 modules. The 25G CWDM SFP28 operates within the wavelength range of 1271-1331nm and is primarily used in 5G front-haul transmission networks, capable of transmitting up to 10 kilometers over single-mode OS2 fiber.
Q: What is the maximum transmission distance for a 25G SFP28 transceiver?
A: Presently, the theoretical maximum transmission distance achievable is 40 kilometers.
Q: Does the SFP28 optical module support backward compatibility?
A: Yes, it supports backward compatibility with 10G rates.
Q: Can an SFP28 port interconnect with a QSFP28 port?
A: Yes, they can interconnect using either a module plus jumper or a breakout cable.
- For the module+jumper setup: The 25G end uses a 25G SR module, the 100G end utilizes a 100G SR4 module, and a multimode MTP/MPO-4xLC harness cable connects them in between.
- For the breakout cable: A 100G to 4x25G breakout AOC/DAC cable is used for interconnection.
Q: Can a 25G SFP28 port support 10G modules?
A: Generally, a 25G port on a device can support multiple rates, such as 1G/10G/25G, allowing for the use of modules with these different speeds on the same port.
| Product Number | Data Rate (Gb/s) |
Wavelength (nm) |
Reach (km) |
LD | Tx Power (dBm) |
PD | Rx Sens (dBm) |
Temperature (℃) |
Download |
| DWDM LR 10km | 25 | 1270~1450 | 10 | DML | -7.0～2 | PIN | < -11.5 | 0~70/-40~85 |  |
| DWDM LR 10km | 25 | 1470~1610 | 10 | DML | -7.0～2 | PIN | < -11.5 | 0~70/-40~85 | |
| DWDM LR 40km | 25 | 1270~1370 | 40 | DML | -3.0～6.0 | PIN | < -14 | 0~70/-40~85 | |
| DWDM LR 40km | 25 | 1470~1610 | 40 | DML | -3.0～6.0 | APD | < -14 | 0~70/-40~85 | |
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