Electrical installation 5
LDCDS−MC−PBx DE/EN 3.0
37
H1_E_INST−PBS_Uebrate_LtgLaenge
Specification of the transmission cable
Note!
Only use cables complying with the listed specifications of the PROFIBUS user
organisation.
Field Values
Specific resistance
135 ... 165
W/km, (f = 3 ... 20 MHz)
Capacitance per unit length
£ 30 nF/km
Loop resistance
< 110 W/km
Core diameter > 0.64 mm
Core cross−section > 0.34 mm
2
Cores Twisted double, insulated and shielded
Baud rate / length of bus cable
Baud rate [kBit/s] Length [m]
9.6 − 93.75 1200
187.5 1000
500 400
1500 200
3000 − 12000 100
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