Custom 25GBASE-ER SFP28 MODULE, Tailored Metropolitan Backbone
-
Mission-Critical Distance Customization: Extend your 25G network reach for critical metropolitan applications. We engineer the precise laser strength to conquer your specific inter-city distances without signal regeneration.
-
Ultra-Low Dispersion Performance: Utilizing specialized Cooled EML lasers, we tune these transceivers to guarantee minimal signal attenuation and chromatic dispersion over vast spans.
-
Strict 3D & Live-Traffic Testing: Every single unit is 100% 3D interferometer tested and live-traffic verified in our Wuhan facilities to ensure zero packet loss.
Product Overview
Routing 25Gbps traffic across Metropolitan Area Networks (MAN) or long-haul DCI links presents immense physical challenges. Off-the-shelf transceivers cannot reliably account for the unique splices and extreme chromatic dispersion found in massive fiber networks at 25G speeds. The Wolon Custom 25GBASE-ER SFP28 MODULE series provides network architects with an unbreakable, tailored link. We meticulously configure the external modulation power (EML) and APD receiver sensitivity required for your exact distance metrics. These bespoke transceivers ensure your mission-critical data reaches its destination with perfect clarity.
Key Features
-
Bespoke EML/APD Technology: Combines custom-tuned external modulation with ultra-sensitive Avalanche Photodiode receivers to capture faint 25G signals across kilometers of glass.
-
Precise Optical Budgets: We tune the Tx power and Rx sensitivity to match your network's specific insertion loss calculations, eliminating guesswork.
-
In-Depth DDM Diagnostics: Built-in Digital Diagnostic Monitoring empowers your operations team to track laser health across massive network topologies based on custom alerting thresholds.
Technical Specifications
| Specification | Details |
|---|---|
| Data Rate | 25.78 Gbps |
| Form Factor | SFP28 |
| Optical Budget | Engineered to your exact long-haul span and splice loss |
| Transmitter / Receiver | Custom Cooled EML Laser / Tuned APD Receiver |
| Compatibility | Bespoke EEPROM coding for telecom hardware |
Application Scenarios
Carrier Metro Networks (MAN): Connecting distant municipal switching centers for ISPs requiring massive 25G uplinks.
Geo-Redundant DCI: Mirroring critical enterprise datasets between geographically separated disaster recovery sites.
Frequently Asked Questions
Q1: Is the maximum transmission distance for the 25GBASE-ER exactly 30km or 40km?
A: Our 25GBASE-ER SFP28 MODULE achieves a highly stable 30km reach without Forward Error Correction (FEC). However, if your core switch enables RS-FEC, the maximum zero-error transmission distance extends perfectly to the 40km metropolitan network limit.
Q2: Will the module generate excessive heat and stress our core routers over such long distances?
A: Not at all. We utilize premium thermal conductive materials and highly efficient, low-power EML lasers in our internal PCBA design. The maximum power consumption is strictly capped under 1.8W, fully compliant with SFP28 thermal MSA standards to protect your core equipment.
Q3: If I test the ER module on a short link (e.g., 5km), do I strictly need an attenuator?
A: Yes, it is absolutely mandatory! To protect the highly sensitive APD receiver from being instantly damaged by strong optical output, you must install an optical attenuator (at least 5dB) if deploying or testing this long-reach module on any link shorter than 10km.
Q4: What reliability testing is performed on these long-haul modules before shipping?
A: Quality control is our core priority. In addition to 100% 3D interferometer end-face inspections, every ER module is subjected to severe high/low-temperature cycling and hours of live Bit Error Rate (BER) testing over physical 40km fiber spools in our labs.
Reviews
There are no reviews yet.