Overview
Maximize the reach and resilience of your fiber network with the Industrial GPON XGS-PON Combo OLT SFP+ Module (Class D). Designed for the harshest environments, this I-Temp transceiver operates flawlessly in extreme temperatures ranging from -40°C to +85°C, making it the perfect choice for outdoor street cabinets, unconditioned remote nodes, and industrial FTTx applications.
This module features a Class D (High Power) optical budget, significantly exceeding standard Class C+ ratings. This “Super” budget allows for deeper fiber penetration, longer distances (up to 40km in some configurations), or higher split ratios (up to 1:128 or 1:256) without additional amplification. As a Multi-Protocol Module (MPM), it simultaneously supports 10G XGS-PON and 2.5G GPON services on a single fiber, enabling seamless migration in challenging outdoor deployments.
Key Features
- Industrial Temperature (I-Temp): Hardened components ensure reliability from -40°C to +85°C.
- Ultra-High Power Class D: Provides a link budget of ~35dB+ for extended reach and high splits.
- Dual-Mode Combo: Simultaneous XGS-PON (10G) and GPON (2.5G) transmission.
- High Output Power:
- XGS-PON Tx: +4 to +8 dBm
- GPON Tx: +4 to +8 dBm
- Wavelengths: 1577nm (XGS Tx) / 1270nm (XGS Rx) + 1490nm (GPON Tx) / 1310nm (GPON Rx).
- Connector: Simplex SC/UPC interface.
- Form Factor: SFP+ / SFP-DD compliant for Combo PON ports.
Applications
The Class D I-Temp Combo Module is engineered for critical and remote network segments:
- Outdoor OLT Cabinets: Deployed in street furniture (FTTC/FTTB) where active cooling is limited or non-existent.
- Rural Broadband: The Class D budget overcomes long fiber runs typical in low-density rural areas.
- Extreme Climates: Ideal for regions with freezing winters or scorching summers.
- High-Split Networks: Supports dense passive optical splits (1:128) to maximize OLT port utilization.
Specifications
| Parameter | Value |
|---|---|
| Form Factor | SFP+ (Combo PON) |
| Operating Temperature | -40°C to +85°C (Industrial) |
| Optical Class | Class D / C++ (High Power) |
| Data Rates | 9.953Gbps (XGS) / 2.488Gbps (GPON) Downstream |
| Typical Link Budget | ~35 dB |
| Tx Power | +4 ~ +8 dBm |
| Rx Sensitivity | ≤ -30 dBm |
| Max Distance | 20km – 40km (Depending on Split) |
| Connector | SC/UPC |
| DDM/DOM | Yes (Industrial calibrated) |
Cross-Platform Compatibility
This Industrial Combo Module is compatible with major OLT platforms that support MPM/Combo cards, specifically those designed for harsh environments:
| Manufacturer | Compatible Series |
|---|---|
| Huawei | SmartAX MA5600T, MA5800 (Industrial/Outdoor Chassis) |
| ZTE | ZXA10 C600, C650, C300 (With Combo Line Cards) |
| Nokia | 7360 ISAM FX Series (Temp-Hardened variants) |
| Fiberhome | AN6000 Series (Outdoor Cabinets) |
| Generic | Open OLTs with SFP+ Combo cages supporting I-Temp |
Advantages
The primary advantage of the Class D I-Temp Module is its ability to eliminate the need for climate-controlled shelters. By surviving -40°C to +85°C, operators can deploy OLTs closer to the subscriber edge in simple outdoor enclosures. Furthermore, the Class D optical budget provides a significant safety margin (3-5dB higher than Class C+), ensuring link stability even as fiber ages or connector losses increase over time.
FAQ (Technical & Product Questions)
1. What does “Class D” mean in PON networks?
“Class D” (often interchangeable with Class C++ or Super Class C+) refers to the highest optical power budget tier, typically offering roughly 35dB of loss budget. It allows for higher transmit power (+4 to +8 dBm) and greater receiver sensitivity, enabling longer distances or more splitters.
2. Why is “I-Temp” important for OLT modules?
Standard commercial modules (C-Temp) fail or degrade around 0°C or above 70°C. I-Temp (-40°C to 85°C) ensures the laser physics and electronics remain stable during freezing winter nights or inside sun-baked cabinets in summer, preventing service outages.
3. Can I use this Class D module with standard Class B+ ONUs?
Yes, but you must be careful with attenuation. Because the Class D OLT transmits at high power, short fiber runs (e.g., <5km) might saturate or damage a standard ONU receiver. You may need to add optical attenuators for close-range subscribers.
4. Is this module SFP+ or SFP-DD?
While often labeled as SFP+ for simplicity, Combo PON capability usually requires the extra electrical lanes of the SFP-DD form factor or specific proprietary pins on the OLT backplane. Please verify your OLT line card explicitly supports “Combo PON” or “MPM” modules.
5. What connector type is required?
This module uses a standard SC/UPC (Blue) connector. Do not use SC/APC (Green) connectors, as the angled polish will cause an air gap and high return loss.
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