Configuration Requirements; System Block Diagram; Switching Principle - Huawei OptiX RTN 600 Product Description

4.5.1 Configuration Requirements

Table 4-5 Requirements for 1+1 SD configuration
Component
IF1A/IF1B
ODU
Antenna

4.5.2 System Block Diagram

Service signal
Auxiliary
interface
Figure 4-6 Block diagram of a 1+1 SD microwave transmission system

4.5.3 Switching Principle

I. Transmit Direction
The cross-connect unit transmits two service signals to the active and the standby IF
units. Normally, only the active ODU transmits the RF signals to the antenna. If the
active IF unit or the active ODU becomes faulty, the standby ODU takes over and
starts to transmit signals to the antenna.
II. Receive Direction
The two antennas transmit the received RF signals to the active and the standby
ODUs. Both the active and the standby IF units always transmit received signals to
each other. When one unit detects that there are bit errors or faults in its received
Commercial in Confidence
2 PCS (paired in slot 5 and slot 7, in slot 6 and slot 8)
2 PCS
2 PCS
IDU
Cross-connect unit
Service
interface
unit
overhead bus
Clock
unit
unit
Configuration Requirement
IF signal
IF unit
(main)
Baseband
signal
IF signal
IF unit
(standby)
Control and
Fan and
Control
power
unit
unit
Product Description
OptiX RTN 600
RF signal
ODU
(main)
ODU
(standby)
RF signal
Antenna
Antenna
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