Title: Kabelspesifikasjoner AutroSafe.pdf
Maximum resistance (Ω) / capacitance (F) Maximum loop resistance depends on load.The Power Loop Calculator Tool shall be used to determine the maximum resistance.AutroFieldBus (AFB)Twisted-pair cables. Category 4, 5 or 6Short length cables (< 600m): The cable length is limited to 600m. Capacitance per 1000m shall be less than 200nF.Characteristic impedance 100 Ω +/- 15%. Attenuation @100KHz, Max. 9 dB over full cable segments (or between boosters).Shielded cable required. Shielded by foil or braid.Medium length cables (< 1000m): The AutroFieldBus cable length is limited to 1000m. Capacitance per 1000m shall be less than 100nF.Cable length > 1000m: Boosters shall be used if the AutroFieldBus cable is more than 1km in length. Boosters shall be evenly spread round the AFB ring. NOTE: The maximum length for a total ring with Boosters is 2,8km (see also rightmost column).