Published on:2026-05-24 Click:27
Underwater multicore ROV signal STP/SFTP Cat5a network cable. Individually shielded twisted pairs, PUR jacket, for ROV Ethernet, subsea LAN, and instrument communication.
The underwater STP/SFTP Cat5a network cable provides Ethernet-grade signal integrity in subsea environments. Each of the four twisted pairs is individually shielded (STP) or foil-shielded and overall-braided (SFTP), with the complete assembly jacketed in high-flex PUR. This construction rejects electromagnetic interference common in ROV electrical systems and maintains Cat5a performance (350 MHz, 1 Gbps over short runs) at operating depths.
| Parameter | Specification |
|---|---|
| Standard | Cat5a STP (individual pair shield) or SFTP (pair + overall) |
| Pairs | 4 x 2 x 24AWG |
| Conductor | Stranded tinned copper |
| Pair Shielding | Individual foil + drain wire |
| Overall Shield | Braid (SFTP variant) |
| Impedance | 100 Ohm ±15% |
| Bandwidth | 350 MHz |
| Outer Jacket | Polyurethane (PUR) |
| Colour | Black |
Request datasheet, custom length, or OEM pricing: sales@rovcable.com -- Shanghai Kabel Intelligence Technology Co., Ltd.
Cat5a STP supports 1000BASE-T (Gigabit Ethernet) up to 100 m under ideal conditions. In ROV applications with longer tether runs, 100BASE-TX (100 Mbps) is more reliable. For Gigabit over long distances, use fibre optic in the tether and Cat5a for short on-vehicle runs.
SFTP (foil pair shield + braid overall) provides the best noise rejection and is recommended for ROV applications where power cables run in the same tether bundle. The additional overall braid provides a second shield layer and a low-impedance return path for shield currents.
