The Fitel/Furukawa S174H is a core-alignment fusion splicer engineered for precision splicing of single-mode and multi-mode optical fibers in field and laboratory environments. The unit performs automated core/clad offset measurement, fiber alignment, and splicing with integrated splice loss estimation displayed on an onboard TV monitor. Its compact footprint (200 mm W × 190 mm D × 180 mm H) and direct fiber core viewing capability enable accurate alignment without external optical systems. The S174H accepts five fiber types: single-mode fiber (SMF), multi-mode fiber (MMF), dispersion-shifted fiber (DSF), non-zero dispersion-shifted fiber (NZDSF), and erbium-doped fiber (EDF), with cladding diameter of 125 µm and coating diameter ranging from 250 µm to 1.00 mm.
Technical Specifications
• Splicing Method: Core-alignment
• Splice Time: 9 seconds
• Heat Time: 37 seconds (40 mm sleeve); 51 seconds (60 mm sleeve)
• Average Splice Loss: SMF 0.02 dB, MMF 0.01 dB, DSF 0.04 dB, NZDSF 0.03 dB
• Tension Test: 1.96 N
• Memory Capacity: 2000 splice records; 150 available splice/heat programs; 30 fiber type parameters storable
• Fiber Cladding: 125 µm diameter
• Fiber Coating: 250 µm to 900 µm diameter range
– Key Features
• Integrated heater with air-cooling fan reduces reinforcement time
• Electrical discharging circuit enables stable splicing up to 4,000 m altitude
• Internal battery supports approximately 70 splice/heat cycles per charge
• USB 1.1 data interface for splice record export
• Integrated TV monitor displays real-time splicing parameters and results
• Operating temperature range: −10 to +50° C; 90% humidity at 38° C
– Power and Portability
AC input: 85 to 246 VAC, 50/60 Hz; DC input: 10.6 to 12.6 V; power consumption: 100 W. Hard carrying case included for transport.
