Specifications

CP143 H1 / TCP/IP manual Network planning
Rev. 00/07 3-13
3.3.3 Technical data thick-ethernet
Coaxial cable
Impedance
50 Ω±2 Ω
Impedance linearity
± 3 Ω with a period > 2 m
Inductivity 0,21 µH/km
Capacity
85 pF ± 5pF
Attenuation
≤ 18 dB/km for a 10 MHz sine wave
≤ 12 dB/km for a 5 MHz sine wave
Propagation
≥ 0,77 c (velocity of light)
Loop resistance
≤ 10 m Ω/m at 20° C
Minimum radius for bends, single bend 21 cm
Minimum radius for bends, multiple bend 40 cm
Diameter of center conductor
2,17 mm ± 0,013 mm
solid copper
Thickness of the dielectric 1,99 mm
Thickness of the screen
1,06 mm ± 0,089 mm
Screening effectiveness
≥ 92 %
Thickness of the outer insulator
1,25 mm ± 0,089 mm
Outside diameter for polyvinylchloride (PVC)
10,287 mm ± 0,178 mm
Outside diameter for fluorpolymer
9,525 mm ± 0,178 mm
Transceiver cable
Maximum operating voltage 30 V
Maximum current capacity 2,8 A
Capacity of a single pair of lines 55 pF/m
Impedance
78 Ω±5 Ω
Screening effectiveness 78 %
Maximum attenuation 3 dB / 50 m
The yellow outer cover of the cable bears imprinted marks at a distance of 2,5 m ± 5cm.These
marks indicate the positions where a transceiver may be connected. The coaxial connectors at the
end of every cable are N-type plugs.