Page 1066 - 5G Basics - Core Network Aspects

2 Transport aspects

Table I.1 – Detailed loop and noise characteristics of the final drop

Loop Patch section Proximal section Radial section

Metres Type Xtalk Metres Type Xtalk Metres Type Xtalk
D1-US 0.6 A26j 2 60 A26u 10 93 A24u 0
D2-US 0.6 A26j 2 – – – 90 A24u 0

D3-UK 0.6 B05 1 Null 35 B05a 1
D4-UK 0.3 B05 1 3 B05u 2 70 B05a 1
D5 0.0 N/A 0 Figure I.4 B05a 0 and 1 Figure I.4 B05a 0
D6-NL 0.6 A26j 2 50 T05u 2 x 20 30 T05b 2 x 5
D7 6 PE4-ALT 47 120 PE4D- 47 80 PE4D- 10
TK ALT ALT
D8 1 PE4-ALT 47 250 PE-AQB- 47 0 – 0
(Note) TK T-ALT
NOTE – The overall length of this loop exceeds the expected maximum length for reliable operation of ITU-T G.9701.

Figure I.4 – Primary final drop loop (D5)

0.6 m 60 m 93 m
D1-USA DP NTc
A26j A26u A24u

0.6 m 0 m 93 m
D2-USA DP NTc
A26j - - - A24u

0.6 m 0 m 35 m
D3-UK DP NTc
B05??? - - - B05a

0.6 m 3 m 70 m
D4-UK DP NTc
B05??? B05u B05a

0.6 m 50 m 30 m
D6-NL DP NTc
A26j T05u T05b

Figure I.5 – Illustration of final drop loops

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