The Sumitomo S1V (including the S1V Ultra model) is a highly compact, active clad alignment fusion splicer optimized for FTTx (Fiber to the Home/Business) field applications. As of 2026, it remains a top choice for technicians due to its lightweight design and advanced AI-driven features.
Key Technical Specifications
The S1V series is built for speed and durability in the field:
Splicing Speed: Typically 6 seconds in 'Quick Mode'.
Heating Time: Fast heating in as little as 12 to 17 seconds for a 60mm sleeve.
Battery Life: Delivers approximately 250 splice and heat cycles per full charge using the BU-17 battery pack.
Electrode Life: Exceptionally long life, rated for 6, 000 arc discharges.
Fiber Compatibility: Handles SMF, MMF, DSF, NZDSF, and BIF (G.657) fibers.
Display: 4.3-inch color LCD capacitive touchscreen with smartphone-like intuitive operation.
Advanced Features & Technology
NanoTune™ Technology: Uses Artificial Intelligence to refine splicing algorithms, ensuring high-quality joins even with poorly cleaved or damaged fibers.
Active V-Groove Alignment: Compensates for dust and environmental factors to minimize insertion loss (typically 0.03dB for SMF).
Compact & Rugged: One of the world’s smallest splicers, weighing only 1.2 kg with the battery. It features IP52 water and dust resistance and is shock-resistant (tested for 76cm drops).
SumiCloud™ Support: Enables cloud-based data management, including splice data storage (up to 10, 000 records internally) and software updates via a dedicated PC interface.
Included Accessories & Packaging
The machine typically comes with a specialized working tray (WT-18) that can be hung from a belt, allowing technicians to splice while standing or in confined spaces. Standard kits often include:
Fiber Cleaver (e.g., FC-7LS or FC-8R).
Jacket Remover (JR-M03) and Alcohol Dispenser.
AC Adapter (ADC-15) and Battery Pack (BU-17).
