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O2YS(St)CY, Data transmission cables for Profibus network
Classified according to EN 50575 Industrial application Indoor application Vertical flame propagation for a single cable (EN 60332-1) Electromagnetic compatibility Data transmission


Technical data:


  • Cable type: Data transmission cable
  • Operating voltage: Not specified
  • Test voltage: 1500 V
  • Insulation resistance: 1GΩxkm
  • Capacity: 30nF/km
  • Min. bending radius (fixed installations): 8 x Ø

Operating temperature:

  • Fixed installation: -40℃ do 80℃
Wave impedance: 150 Ω +/- 10%
Conductor loop resistance (max.): 115 Ω/km
Screen resistance (max.): 9,7 Ω/km
Wave attenuation at a frequency of:
1 MHz = 1,2 dB/100m
4 MHz = 2,2 dB/100m
10 MHz = 3,2 dB/100m
16 MHz = 4,2 dB/100m

Installation details:

  • Indoor cable
  • Min. installation temperature: -5℃

Environmental resistance:

  • Flame retardance on a single wire

Certificates and approvals:

  • CPR Certificates / DoP

Cable construction:


  • Conductor: bare copper conductors
  • Screen: tinned copper wire braid
  • Core arrangement: pairs / triples / quads


L2-BUS cables are intended for connecting components (standard 486) and transmission of analogue and digital signals. Paired construction ensures good symmetry with respect to earth, while the double screen protects against interferences from external electromagnetic fields, what guarantees very good transmission quality. Cables may be used in dry and damp rooms, and are suitable for fixed installations. For outdoor installations, we have developed the BiT L2 BUS outdoor 02YS(St)C2Y cable with a polyethylene sheath that is resistant to UV radiation. Cables classified according to EN 50575 (CPR).