MINI-LINK TN R3 ETSI
• One radio cable for interconnection
A protected (1+1) Radio Terminal comprises:
• Two RAUs
• Two antennas or one antenna with a power splitter
•TwoMMUs
• Two radio cables for interconnection
Automatic switching can be in hot standby or in working standby (frequency
diversity). Receiver switching is hitless.
In hot standby mode, one transmitter is working while the other one is in
standby, it is not transmitting but ready to transmit if the active transmitter
malfunctions. Both RAUs are receiving signals and the best signal is used
according to an alarm priority list.
In working standby mode, both radio paths are active in parallel using different
frequencies.
For more information on 1+1 protection, see Section 4.6 on page 81.
Radio Cables
The radio cables between the Radio and Modem Units in the magazines are
available in three different diameters:
• Ø7,6 mm — with lengths up to 100 m
This cable can be directly connected to the modem unit.
• Ø10 mm — with lengths up to 200 m or between 100 and 200 m
• Ø16 mm — with lengths between 200 and 400 m
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/1555-CSH 109 32/1-V1 Uen B 2007-09-14
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