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

4.3.1 Configuration Requirements

Table 4-3 Requirements for 1+1 HSB configuration
Component
IF1A/IF1B
ODU
Antenna

4.3.2 System Block Diagram

Service signal
Auxiliary
interface
Figure 4-3 Block diagram of a 1+1 HSB microwave transmission system

4.3.3 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 antenna transmits two RF signals to the active and the standby ODUs. Normally,
the cross-connect unit selects the service signal coming from the active IF unit. If the
active IF unit or the active ODU becomes faulty, the cross-connect unit selects the
service signal coming from the standby IF unit.
Commercial in Confidence
2 PCS
2 PCS
1 PCS (with 1 PCS hybrid coupler)
IDU
Cross-connect unit
Service
interface
unit
overhead bus
Clock
unit
unit
OptiX RTN 600
Configuration Requirement
IF signal
IF unit
(main)
IF signal
IF unit
(standby)
Control and
Fan and
Control
power
unit
unit
Product Description
RF signal
ODU
(main)
Antenna
ODU
(standby)
RF signal
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