Safety Bus


Applications :

  • Safety Bus is an open Fieldbus system based on well established CAN Bus technology.

    Safety Bus modules must be self monitoring,perform intelligent checks and reactions independently and therefore remain “safe”.

    Several versions of Safety Bus cables are available depending on the application and environmental conditions.

    The transnission rate is up to 500 Kbit/s.

Construction :

  • Type/Area of Application Fixed Installation, Indoor
    Cable Construction 3x0.75 mm2 (stranded)
    Inner Conductor Diameter Copper, bare (AWG 18/24)
    Conductor Insulation Foamed PP with a hard skin
    Conductor Colors white, brown, green
    Stranding Element Triple conductor
    Wrapping Polyester foil over stranded bundle
    Total Shielding Copper braid, tinned
    Outer Jacket Material FRNC/PUR/PVC/LSHF
    Outer Diameter 7.5 mm ± 0.3 mm
    Outer Jacket Color Yellow

Electrical Data :

  • Characteristic Impedance@1MHz 120 Ω ± 10 Ω
    Conductor Resistance 52.0 Ohm/km max.
    Insulation Resistance 0.20 GOhm x km min.
    Mutual Capacitance@800Hz 45.0 nF/km nom.
    Working Voltage Max: 250 V
    Test Voltage 3.0 KV
    Data Rate 500 Kbit/s 100m
    250 Kbit/s 250m
    125 Kbit/s 500m
    50 Kbit/s 1000m
    Attenuation 1 MHz < 1.6 dB/km
    5 MHz < 3.4 dB/km
    10 MHz < 5.6 dB/km
    16 MHz < 7.5 dB/km

Technical Data :

  • Weight approximately 68.0 kg/km
    Min. Bending Radius (Laying) 10 x OD mm
    Operating Temp.Range, min. - 30 °C
    Operating Temp.Range, max. +80 °C