Published on:2026-05-24 Click:24
Yellow 1 SM fiber + 2 shielded power core floating underwater ROV cable. Foamed PUR, high-visibility yellow for fiber ROV tether with power in a positively buoyant cable.
The yellow 1 SM fiber + 2 shielded power floating cable is a compact hybrid tether for fiber-connected ROVs requiring a separate power supply channel. One OS2 single-mode fiber carries 10 Gbps+ data and video, while two shielded power cores supply the ROV electronics and thrusters. The high-visibility yellow foamed PUR jacket makes the tether easy to see at the surface and keeps it floating, simplifying tether recovery. The foamed polyurethane (PUR) jacket uses a micro-cellular expanded jacket compound with a bulk density lower than seawater (~1.025 g/cm³), giving the cable near-zero or positive net buoyancy. This eliminates tether sag and reduces drag force on the ROV, improving vehicle manoeuvrability and reducing tether management workload during subsea operations.
| Parameter | Specification |
|---|---|
| Fiber | 1 x SM OS2 (9/125 μm) |
| Power Cores | 2 x stranded tinned copper (CSA per spec), individually shielded |
| Jacket | Foamed micro-cellular PUR |
| Jacket Colour | Yellow (high visibility) |
| Buoyancy | Positive (floating at surface) |
| Fiber Attenuation | ≤0.2 dB/km @ 1550 nm |
| Custom | Power CSA, fiber count, length, connector |
Request datasheet, custom length, or OEM pricing: sales@rovcable.com -- Shanghai Kabel Intelligence Technology Co., Ltd.
The jacket is manufactured from a micro-cellular expanded (foamed) polyurethane compound. During extrusion, a controlled foaming agent creates millions of tiny closed-cell air pockets within the jacket wall. These air cells reduce the bulk density of the jacket below that of seawater (~1.025 g/cm³), producing positive or neutral net buoyancy. The jacket retains all the abrasion resistance, oil resistance, and flexibility of standard PUR while achieving the buoyancy needed for ROV tether applications.
Shielding on the power cores provides two benefits: (1) it reduces radiated electromagnetic interference from the power conductors (carrying pulsed thruster currents) that could affect the fiber transceivers and other electronics; (2) it provides a low-impedance return path for shield currents, improving EMC performance. The shield is earthed at the topside end only (single-point earth) to prevent ground loops.
