Choosing the right fiber optic cable type at design stage is the single largest lever on both material cost and long-term failure rate. A cable specified for aerial self-supporting duty installed in a duct wastes money; a duct cable strung between poles will fail within a season.
| Environment | Common models | Typical use |
|---|---|---|
| Duct | GYTA, GYTS, GYFTY, GYFXTY | Metro, access, backbone |
| Direct buried | GYTA53, GYTY53 | Long rural spans without duct |
| Aerial self-supporting | ADSS, GYTC8S, Figure-8 | Pole routes, power corridors |
| Indoor / riser | GJFJH, GJSFJV, LSZH distribution | In-building cabling, data centres |
| FTTH last mile | GJXH, GJXCH, GJYXCH, flat / round drop | Subscriber drop |
| Special / sensing | Composite, armoured, DTS sensing cable | Mining, military, monitoring |
Drop cables connect the access network to the subscriber. The most common are bow-type (butterfly) drop cables GJXH, GJXCH and self-supporting GJYXCH; flat drop cable; and round drop cable. Bend-insensitive G.657 fiber allows tight bends around building corners without added loss.
For mining, military, high-temperature and DTS/DAS sensing applications, composite and armoured constructions add steel tubes, flame-retardant jackets and distributed sensing fibers.
Cable types only cover the span. A working link also needs patch cords, pigtails, PLC splitters, ODF frames, splice closures, adapters and terminal boxes. Huifiber supplies all of them so the whole bill of materials comes from one qualified source.
If you are not sure which construction suits your route, send us the installation environment, span and core count. Our engineers will recommend a specific model and supply the corresponding datasheet so you can compare options side by side.
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Direct burial routes use armoured loose tube cable such as GYTA53 or GYTY53, with a corrugated steel or aluminium tape armour and a heavy outer sheath to resist crush, rodent attack and moisture ingress in soil.
Aerial self-supporting routes use ADSS, figure-8 (GYTC8S) or other messenger-integrated cable for pole runs, and ADSS for tower and power-corridor runs. A cable rated only for duct must never be strung between poles.
FTTH drop routes use flat or round drop cable such as GJXH, GJXCH or GJYXCH with bend-insensitive G.657.A1/A2 fibre, sized for 1 to 4 subscribers and often pre-connectorised for faster deployment.
