For FTTH contractors, the same crew may need to splice fiber in a distribution box in the morning and finish a drop cable installation inside a customer’s building that afternoon. When choosing a fusion splicer for this work, check which fiber and cable sizes it can hold, how long it takes to complete a splice and protect it with a sleeve, and what the kit includes.

The Darkhorse D21S PRO is a four-motor fiber fusion splicer designed for FTTH installation and access network work. Here are three things to check when evaluating it for your crew or product range.

Check compatibility with your drop cables

The standard fixture supports common indoor drop cables and several fiber and cable sizes. Before ordering, send us the cable type and dimensions your crew uses. We can help confirm whether the standard setup fits your application and what accessories you need.

Allow time for both splicing and sleeve heating

The D21S PRO has a typical splice time of 7 seconds. Typical sleeve heating takes 15 seconds for a 45 mm sleeve or 20 seconds for a 60 mm sleeve. When planning an installation or evaluating a sample, time the full process with your own cable, including stripping, cleaning, cleaving, splicing and sleeve heating.

Evaluate one unit before ordering for a crew

The D21S PRO has a minimum order of one set. Contractors can evaluate a unit with the cables and sleeves they use on site. Distributors can check the kit contents, confirm spare parts availability and review warranty terms before deciding on a larger order.

Request a D21S PRO quote

Send us your destination country or city, required quantity, and cable type. Ask for a single-unit or bulk quote, and we can confirm the kit contents, current lead time and shipping options for your order.
View D21S PRO specifications and request a quote