Get in touch

S123M Series

The S123M Series Hand-Held Ribbon fibre Fusion Splicers have been enhanced and updated to version 2. The battery is automatically charged internally when connected to AC mains power even during operation. The new illumination lamp lights up a wide area around the V-grooves and helps operation in low light environment. The redesigned and strengthened heater simplifies the protection sleeve loading process.

With their low profile design and light weight bodies the S123M series offer not only ribbon fibre splicing but also single fibre splicing with outstanding mobility and extreme ease-of-use. In addition, the rugged body is designed to endure harsh operating conditions by improving shock/impact resistance with rubber pads embedded on 4 corners of the splicer body. It achieves water resistance compliant IPX2 and dust resistance compliant IP5X.


Applicable Fibers SM (ITU-T G.652), MM (ITU-T G.651), DSF (ITU-T G.653)
NZD (ITU-T G.655), BIF/UBIF (Bend Insensitive fibre ITU-T G.657)
Cladding Diameter 125m
Coating Diameter Single fibre: 250 to 900m, Ribbon fibre: 280 to 400m (thickness)
Fibers Cleave Length 10 mm
Average Splice Loss SM: 0.05 dB, MM: 0.02 dB, DSF 0.08 dB, NZD 0.08 dB
Splice Time Single fibre: 15 seconds, Ribbon fibre: 15 seconds
Heat Time Ribbon fibre: 36 seconds*1 (S924: 40mm sleeve) (Pre-heat mode)
Splice Programs Max. 150
Heat Programs Max. 18
Automatic Heating Start Available
Applicable Sleeves 40/60 mm
fibre Holder fibre holder System
Tension Test 1.96 N
Splice Return Loss 60 dB or greater
fibre Image Magnification 48X (S123M4)   |    28X (S123M8)   |    20X (S123M12)
Splice Memory Max.1500 (S123M4)   |   Max.1000 (S123M8, S123M12)
Image Capture Capacity Last 100 images to be automatically captured + Up to 24 images to be stored permanently
Dimension S123M4 :
           127W199D81H mm (not including shock absorber)
           159W231D104H mm (including shock absorber)
S123M8, S123M12 :
           127W199D105H mm (not including shock absorber)
           159W231D130H mm (including shock absorber)
Weight S123M4 :
           1.4 kg (without battery), 1.6 kg (with battery)
S123M8, S123M12 :
           1.6 kg (without battery), 2.0 kg (with two batteries)
Monitor 3.5 color LCD monitor
Data Output USB ver. 2.0 mini
Battery Capacity*2 Typical 70 splice/heat cycles with S943B battery (S123M4)
Typical 160 splice/heat cycles with two S943B batteries (S123M8, S123M12)
Wind Protection Max. wind velocity of 15 m/s.
Operating Temperature -10 to +50C (0 to 95% Relative Humidity [Non-Condensing])
Storage Temperature -40 to +60C (0 to 95% Relative Humidity [Non-Condensing])
Humidity 0 to +95% RH (non-condensing)
Power Source AC Input 100 to 240 V (50/60 Hz), DC Input 11 to 17 V without any change of hardware

*1 - The first heating after turning on the power can be longer than usual heating time.

*2 - The number of the splicing and heating the machine can produce using a full charged battery at room temperature of 20C, semi-auto mode for splicing and regular mode for heating. Depending on the condition of the battery and the operation environment, the number can vary

  • Standard Holders

  • We have a range of fibre holders that can be equipped with the S123M series to handle most of your splicing needs.

  • Ribbon Holders

  • No matter how many fibres you need to splice; we have the holders for them.

  • Fibre Strippers

  • Our S218R and S218H are the perfect thermal fibre strippers to have in your tool kit when carrying an S123M splicer.

  • Splicer Add-ons

  • There are a variety of product accessories we have that compliment our splicers and allow you to be more equipped for any situation.