WebEML User Manual
Perform protection switching
1001
68.3 Rx Radio Protection Switching
Rx Radio Protection Switching (RPS) provides protection for a working radio
channel. This type of protection is performed by switching a working channel to a
protection section when the working section fails or when its performance falls below
the required level.
RPS is available in all 1+1 radio direction configurations in single-ended mode (the
switching is complete when the working channel in the failed direction is switched to
the protection section). When the protection type is 1+1 at the source end, the normal
traffic signal is transmitted simultaneously on both working and protection channels
and the receiving end monitors the condition of the two traffic signals received and
selects the better (connected to the appropriate signal).
For RPS, the Active Radio Channel signal is sent to both MPT-HL/HLC/HC/XP
Transceivers frame managers.
68.4 Hot StandBy protection switching
Transmission protection switching (HSB) provides protection to a radio transmission
channel where transmission is implemented on two MPT-HL/HLC/HC/XP
Transceivers. This protection is performed by switching the main radio transmission
MPT-HL/HLC/HC/XP Transceiver cards supporting the protected radio transmission
channel to spare (protecting) radio transmission MPT-HL/HLC/HC/XP Transceiver
cards capable of supporting the same service when a failure is present (equipment
failure).
68.5 Protection switching schemes per
configurations
The following configurations support the listed protection switching types:
• 1+1 Frequency Diversity: supports RPS and EPS protection switching. Radio
Protection Configuration, two MPT-HL/HLC/HC/XP Transceiver cards, two
different frequencies, no coupler/relay
• 1+1 HSB: supports RPS, HSB, and EPS protection switching. Radio Protection
Configuration, two MPT-HL/HLC/HC/XP Transceiver cards, same frequency,
one coupler/relay
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