Darkhorse D21S PRO fiber fusion splicer

D21S PRO 4-motor Fiber Fusion Splicer ensures precise, low-loss fiber splicing. With fast operation, long battery life and rugged build, it suits various fiber types and all kinds of outdoor & indoor optical fiber projects. Easy to operate and maintain, it is your ideal partner for fiber cabling work.

Item NO.: Darkhorse

Product Origin: CHINA

Color: Standard

Shipping Port: Qingdao

Lead Time: 3-5 Working Days

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Product Details
Specifications
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Product Details

Comparison Item	Darkhorse D21S PRO	Imported 4-motor Splicer	Entry-level Domestic Splicer
Alignment Technology	4-motor Core Alignment	4/6-motor Alignment	Simple motor / Manual alignment
Typical Splicing Loss	0.01dB ~ 0.03dB	0.02dB ~ 0.03dB	0.05dB ~ 0.1dB
Total Splicing & Heating Time	About 22s	25s ~ 30s	40s ~ 60s
Battery Cycles	260 cycles	200 ~ 250 cycles	100 ~ 150 cycles
Electrode Lifespan	6000 discharges	5000 ~ 6000 discharges	3000 ~ 4000 discharges
Price Level	Mid-to-high cost performance	High price	Low budget
Maintenance Cost	Low, universal spare parts	High, exclusive imported parts	Medium, poor compatibility
Applicable Scenarios	Trunk line & FTTH	High-end trunk projects	Temporary & low-standard work

Specifications

Q1: Can this splicer work with indoor drop cable?

A: Yes. The standard fixture fits 0.25mm~3.0mm fibers, including common indoor drop cables. No extra fixture is required.

Q2: How many working cycles can a full battery support?

A: The 5200mAh battery supports around 260 times of splicing and heating. It can meet one full day’s outdoor work. You can also use AC power directly.

Q3. What causes high splicing loss and how to fix it?

A: Main reasons: dirty fiber or uneven cut end, contaminated V-groove or lens, worn electrodes. Solutions: Re-prepare and clean fiber, run dust inspection, replace electrodes and calibrate discharge.

Q4: Can it work in extreme temperature?

A: The working temperature range is -10℃ to +60℃, suitable for most outdoor scenes. Preheat the device in extremely cold areas for better battery performance.

Q5: How often should electrodes be replaced?

A: We suggest replacing electrodes after 4500 discharges. The machine will send a reminder after 5500 discharges. Worn electrodes will lead to poor splicing quality.

Q6: Can I export the splicing records?

A: Yes. You can export history records and images to computer via Type-C port for project filing and acceptance.

Q7: Is it friendly for new operators?

A: Absolutely. The auto-operating design and simple interface make it easy to learn. We also provide operation videos and user manuals for guidance.

Q8: What about after-sales support?

A: We provide official warranty for the main unit. Professional technical team offers remote troubleshooting, software upgrade and lifelong consultation. Original spare parts are available at any time.

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