A 24-fiber, gel-filled, steel-armored OM3 multimode fiber-optic cable for indoor and outdoor installation.
This multipurpose cable (U-DQ(ZN)(SR)H) is designed for outdoor ducts and direct burial and continues indoors in risers and horizontal pathways. Twenty-four ClearCurve® OM3 50/125 µm fibers sit in a gel-filled central tube, surrounded by aramid yarns with swellable elements and a corrugated steel tape armor with water-swellable tape, under a black flame-retardant, low-smoke zero-halogen (LSZH/FRNC) jacket. The cable has a 7.5 mm outer diameter, 2000 N/10 cm crush resistance, a maximum installation tensile strength of 1000 N and CPR class Eca. Maximum attenuation is 2.8 dB/km at 850 nm and 1.0 dB/km at 1300 nm, with 2000 MHz·km effective modal bandwidth.
How this product lines up against others in Fiber Cables.
| Fibre mode | Multi-mode OM3 | Single-mode OS2 | Single-mode OS2 |
| Fibre count | 24 fibers | 24 fibers | 4 fibers |
| Fibre standard | — | ITU-T G.652.D, ITU-T G.657.A1 | ITU-T G.652.D |
| Maximum attenuation | — | 1310 nm · 0.34 dB/km, 1383 nm · 0.34 dB/km, 1550 nm · 0.2 dB/km | 1310 nm · 0.36 dB/km, 1383 nm · 0.36 dB/km, 1550 nm · 0.22 dB/km |
| Cable construction | Central loose tube | Central loose tube | Central loose tube |
| Armouring | Corrugated steel tape | Dielectric (glass yarn) | Dielectric (glass yarn) |
| Water blocking | Gel-filled | Gel-filled | Gel-filled |
| Colour | Black | Black | Black |
| Storage temperature | -40 to 75 °C | -40 to 70 °C | -25 to 70 °C |
| Cable environment | Indoor/Outdoor | Indoor/Outdoor | Indoor/Outdoor |
| Routing method | Direct burial, Duct or conduit, Riser | Duct or conduit | Duct or conduit, Riser |
| Outer jacket material | LSZH/FRNC | LSZH/FRNC | LSZH/FRNC |
| Reaction to fire (CPR class) | Eca | Dca | — |
| CPR additional classes | — | s1a, d0, a1 | — |
| Maximum pulling tension | 1000 N | 1500 N | 1000 N |
| Crush resistance | 2000 N/10 cm | 1000 N/10 cm | 1500 N/10 cm |
| Minimum bend radius, installation | 150 mm | 114 mm | 130 mm |
| Minimum bend radius, operation | 110 mm | 57 mm | 100 mm |
| Installation temperature | -5 to 50 °C | -5 to 50 °C | -5 to 50 °C |
| Outer diameter | 7.5 mm | 5.7 mm | 6.6 mm |
| Weight per kilometre | 76 kg/km | 42.5 kg/km | 46 kg/km |
| Maximum length per drum | 4000 m | 6000 m | 6000 m |
| Operating temperature | -30 to 75 °C | -40 to 70 °C | -20 to 60 °C |
| Specification group | — | — | passive |
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