Pilot-Wire Data with Bridgeable Distance for the CC-CO
Reference Values
AWG
Diameter (mm) Cross-Section
(mm
2
)
Line Impedance
Max.
distance CC
↔ CC (km)
Ω/km (50/60 Hz) Ω/km (80 kHz)
7
19
0.91
0.65
27.37
57.74
12.1
20
0.81
0.52
34.54
66.17
10.6
21
0.72
0.41
43.72
76.18
9.2
22
8
0.64
0.32
55.33
88.01
8.0
23
0.57
0.26
69.76
101.86
6.9
24
0.51
0.20
87.13
117.73
5.9
25
0.45
0.16
111.92
139.47
5.0
26
0.41
0.13
134.82
159.04
4.4
27
0.36
0.10
174.87
192.88
3.6
28
0.32
0.08
221.32
232.45
3.0
i
i
NOTE
The loop impedance is considered when specifying the reference values. Furthermore, the bridgeable
distances depend on the type and structure of the cable.
6.3
7
Resistance for the converter modulation frequency
8
Data for a twisted pair of telephone wires
Technical Data
6.3 Pilot-Wire Data with Bridgeable Distance for the CC-CO
38
Accessories, Communication Converter - Copper/Synchronous Interface, Manual
C53000-B1174-C190-1, Edition 01.2022
