This document is a product manual, which introduces the features and characteristics of Unitronic® BUS L2/FIP-H 1x2x0.64mm, including applications, design, electrical characteristics, etc.
The Unitronic® BUS L2/FIP-H 1x2x0.64mm cable is a halogen‑free data cable designed for Siemens field‑net Si nec L2 DP, complying with DIN 19245‑3 and EN 50170. It supports the F.I.P. (Factory Instrumentation Protocol) and high‑performance data networks with transmission rates of 1.5, 2.5 and 12 Mbit/s.
The cable features a 7‑wire stranded copper conductor (0.22 mm²), double screening with aluminium‑mylar tape and a tinned copper braid, and a halogen‑free flame‑retardant sheath. Electrical characteristics include 150 Ω nominal impedance, 186 Ω/km loop resistance and a minimum bend radius of 45 mm for single bends. It is rated for temperatures from –40 °C to +80 °C (static) and meets IEC 60332‑1 flame‑retardant standards.
| Nominal impedance | 150 Ω |
|---|---|
| Loop resistance (max) | 186 Ω/km |
| Screen resistance (max) | 10 Ω/km |
| Insulation resistance (min) | 5 GΩ·km |
| Mutual capacitance (nominal) | 28 nF/km |
| Nominal velocity of propagation | 0.81c |
| Peak operation voltage | 250 V |
| Minimum bend radius (single) | 45 mm |
| Permissible pulling force (max) | 100 N |
| Static temperature range | -40 °C to +80 °C |
The cable has a nominal impedance of 150 Ω.
It can be used from –40 °C up to +80 °C in static conditions.
The cable uses double screening with aluminium‑mylar tape and a tinned copper braid.
The minimum bend radius for a single bend is 45 mm.