Signal Fire AI-20 Fiber Fusion Splicer Overview
The Signal Fire AI-20 is a compact and highly integrated fiber fusion splicer designed for FTTH, FTTx, telecom, and outdoor fiber installation and maintenance. It combines core/cladding alignment, a built-in high-precision electric fiber cleaver, Optical Power Meter (OPM), and Visual Fault Locator (VFL) in one unit.
With 6-motor alignment, 6-second splicing, 15-second heating, a 5-inch color display, and a 7800mAh battery supporting approximately 240 continuous fusion and heating cycles, the AI-20 provides an efficient solution for field fiber installation and maintenance.
Differentce between AI-20 and AI-30
- AI-30 (Upgraded AI-20 version): 100KM Trunk Line Fiber Fusion Splicer with higher 0.05μm alignment accuracy, improved fiber-core imaging, and enhanced splicing stability. AI-30 fiber core is clearer and more visible, and the fusion loss and stability are better. It is fully capable of longer distance mainline fiber optic cable fusion splicing projects.
- AI-20: 80KM Trunk Line Fiber Fusion Splicer.

Signal Fire AI-20 Fiber Fusion Splicer Key Features
-
Core/Cladding Alignment: 6-motor alignment system with 0.1μm alignment accuracy.
-
Fast Fusion Splicing: Approx. 6-second splicing time and 15-second heating time.
-
Built-in Electric Cleaver: High-precision one-step electric fiber cleaver with delayed return function.
-
Integrated OPM & VFL: Built-in Optical Power Meter and 15mW Visual Fault Locator for fiber testing and troubleshooting.
-
Wide Fiber Compatibility: Supports SMF, MMF, DSF, G.654, NZ-DSF, and bend-insensitive G.657 fibers.
-
3-in-1 Fiber Holder: Supports single/multimode fiber, bare fiber, pigtail, patchcord, drop cable, and multi-core cable.
-
Long Battery Life: 7800mAh lithium battery supports approximately 240 continuous fusion and heating cycles.
-
320× Magnification: 5-inch TFT color display with up to 320× magnification.
-
Mobile App Connectivity: Bluetooth 4.2 enables data synchronization, splicing record management, and software updates.
-
Rugged Field Design: Waterproof, dustproof, and drop-resistant for outdoor fiber construction and maintenance.
-
Compact & Portable: Designed for field installation, maintenance, emergency repair, and climbing operations.
Signal Fire AI-20 Fiber Fusion Splicer Datasheet
| Parameter | Specification |
| Model | AI-20 |
| Alignment Method | Core / Cladding Alignment |
| Motor | 6 motors |
| Alignment Accuracy | 0.1 μm |
| Splicing Time | 6 sec |
| Heating Time | 15 sec, adjustable |
| Fiber Type | SMF/G.652, MMF/G.651, DSF/G.653, G.654, NZ-DSF/G.655, BIF/G.657 |
| Cladding Diameter | 80–150 μm |
| Typical Splicing Loss | 0.02 dB (SM), 0.01 dB (MM), 0.04 dB (DS/NZDS) |
| Splicing Mode | Automatic / Semi-automatic |
| Fiber Cleaver | High-precision electric one-step cleaver |
| VFL | 15 mW; 2 Hz flashing / steady-on |
| OPM Wavelengths | 850 / 980 / 1270 / 1300 / 1310 / 1490 / 1550 / 1577 / 1625 / 1650 nm |
| OPM Measurement Range | -50 to +30 dBm |
| OPM Accuracy | < ±0.3 dB (-50 to +3 dBm) |
| Magnification | 320× (single-axis) / 200× (dual-axis) |
| Display | 5-inch TFT color screen |
| Battery | 7800 mAh lithium battery |
| Battery Cycles | Approx. 240 fusion and heating cycles |
| Charging Time | ≤ 3.5 hours |
| Boot Time | 1 sec |
| Data Storage | 1,000 groups locally; exportable |
| Wireless | Bluetooth 4.2, 2.4 GHz, up to 60 m |
| Power Supply | AC 100–240V, 50/60Hz |
| Operating Temperature | -15°C to +50°C |
| Operating Humidity | <95% RH, non-condensing |
| Operating Altitude | 0–5,000 m |
| Protection | Waterproof, dustproof, drop-resistant |
Return and Exchange Policy
Thank you for choosing Huatelecom! We value your trust and strive to provide high-quality products and exceptional service. Below is our comprehensive return and exchange policy to ensure your rights are protected.
1. Return Policy
-
Eligibility for Returns (Quality Issues Only):
If the product has quality defects that affect its normal usage, you are eligible to apply for a return within 7 calendar days of receiving the product. The following conditions must be met:- The product must be unused, with all original packaging, accessories, and manuals intact.
- A valid proof of purchase (order number, invoice, etc.) must be provided.
- Clear evidence of the defect, such as photos or videos, must be submitted for verification.
-
Shipping Costs for Returns:
If the return is due to quality issues, Huatelecom will cover the international shipping costs for returning the product. -
Refund Processing:
Once the returned product is received and inspected, the refund will be processed within 7 business days. The refund will be issued through the original payment method, and processing times may vary depending on your payment provider.
2. Exchange Policy
-
Eligibility for Exchanges (Quality Issues Only):
You may request an exchange if the product develops a quality issue within 15 calendar days of receipt. The conditions for eligibility are:- The product must be returned with all original packaging, accessories, and manuals.
- Proof of purchase and evidence of the defect must be provided.
-
Shipping Costs for Exchanges:
Huatelecom will bear the international shipping costs for the exchange. -
Exchange Process:
Upon receiving the defective product, we will inspect it and send a replacement product within 7 business days.
3. Warranty Service
-
Coverage During the Warranty Period:
For products within the warranty period, if quality issues arise, we will provide a replacement free of charge with your next order. No additional shipping costs will be incurred for the replacement. -
Out-of-Warranty Repairs:
For products outside the warranty period, repairs can be arranged. However, customers will need to cover theround-trip international shipping costs for sending the product to us and receiving it back after repair.
4. Damages or Loss During Shipping
-
For Customers Who Purchased Shipping Insurance:
If the product is damaged or lost during shipping, the insurance company will compensate for the loss. Customers must:- Submit a compensation claim within 15 calendar days of the order being shipped.
- Provide required documentation, such as photos of the damaged packaging, damaged product, or proof of non-delivery.
- Huatelecom will assist in the claim process to ensure timely resolution.
-
For Customers Without Shipping Insurance:
If you choose not to purchase shipping insurance, Huatelecom will not be liable for any damages or losses incurred during transit.
5. Application Process for Returns, Exchanges, or Claims
-
For further assistance, please reach out to us:
- Email: sales@huatelecom.com
- Phone: +852 44652638
- Business Hours: Monday to Friday, 9:00 AM - 6:00 PM (GMT+8)
Provide your order number, issue description, and supporting evidence (photos, videos, etc.).
-
Request Review:
Our team will review your application within 1-3 business days and notify you of the outcome. -
Return or Exchange Process:
- If approved, you will receive instructions on how to return the product or proceed with the exchange.
- For insurance claims, we will assist in coordinating with the insurance company.
-
Refund or Replacement:
Once the product is received and inspected, we will process your refund, exchange, or warranty claim promptly.
6. Important Notes
-
Timeframes:
- Returns must be initiated within 7 days of receipt.
- Exchanges must be requested within 15 days of receipt.
- Warranty replacements depend on the warranty terms for the specific product.
-
Condition of Returned Products:
Products must be returned in their original condition with all accessories and packaging intact. Damaged, altered, or incomplete items may not qualify for returns or exchanges. -
Shipping Insurance:
We highly recommend purchasing shipping insurance to protect against potential damages or losses during transit. -
Non-Eligible Returns/Exchanges:
- Products with intentional damage or misuse.
- Issues reported beyond the specified timeframes.
- Non-Huatelecom products or items purchased from unauthorized channels.
At Huatelecom, your satisfaction is our top priority. Thank you for trusting us with your business!