ABB Relion 650 Series Commissioning Manual page 54

Section 7
Establishing connection and verifying the LON communication
Losses in connection box, two contacts (0.75 dB/contact)
Losses in connection box, two contacts (1dB/contact)
Margin for repair splices (0.5 dB/splice)
Maximum total attenuation
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1MRK 505 395-UEN Rev. G
Distance 1 km Distance10 m
Glass Plastic
1.5 dB -
- 2 dB
0.5 dB -
11 dB 7 dB
Line differential protection RED650
Commissioning manual