Comba Telecom Ltd. RX-7W22 Benutzerhandbuch
INSTALLATION GUIDE FOR RX7W22
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Copyright - refer to title page
Page 11
2.3
EQUIPMENT CONSTITUTION
The typical PS BDA unit consists of the following components:
Power Amplifier (PA): It fulfils power amplification in both UL and DL branches.
Main Control Unit (MCU): The MCU is used to monitor and control the operation of the repeater. It also
provides the communication interface for remote control and indication. LED indicators provide the
operation status of the MCU.
provides the communication interface for remote control and indication. LED indicators provide the
operation status of the MCU.
Duplexer: The DPX is located towards the MT terminals and permits the uplink and downlink signals to
share a common antenna.
share a common antenna.
Digital Integrated Module and Power Amplifier: Consists of Power Conversion module, RF module,
digital process module and monitoring module. Power Conversion module converts +28V DC voltage in to
+9VJK and +9VRF. +9VJK, +9VRF are supplied to monitoring unit and RF unit in integrated module
separately. RF module amplifies and converts the RF signal to IF signal. Digital process module converts
the IF signal into baseband signal via AD conversion and extraction, filtering. After that, IF signal will be
amplified and converted to RF signal by RF module for RF filtering and amplification. Monitoring module
monitors and controls the system parameters and is the interface of both remote monitoring and local
commissioning.
digital process module and monitoring module. Power Conversion module converts +28V DC voltage in to
+9VJK and +9VRF. +9VJK, +9VRF are supplied to monitoring unit and RF unit in integrated module
separately. RF module amplifies and converts the RF signal to IF signal. Digital process module converts
the IF signal into baseband signal via AD conversion and extraction, filtering. After that, IF signal will be
amplified and converted to RF signal by RF module for RF filtering and amplification. Monitoring module
monitors and controls the system parameters and is the interface of both remote monitoring and local
commissioning.
Power Supply Unit (PSU): The PSU converts the input voltage into a stable DC to provide power for the
internal functional modules.
internal functional modules.