INSTALLATION GUIDE FOR UHF DAS
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2.3
EQUIPMENT CONSTITUTION
The typical UHF PS DAS unit consists of the following components:
Power Amplifier (PA):
It provides power amplification for both the 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 status
indication. LED indicators provide the operational status of the
MCU.
Duplexer:
The DPX is located near the MT and DT terminals and permits the uplink and downlink signals to share a
common antenna.
Digital Integrated Module and Power Amplifier
: Consists of the Power Conversion module, RF module, digital process
module and monitoring modules. The Power Conversion module co28V DC voltage into +9VJK and +9VRF.
+9VJK, +9VRF are supplied to the monitoring unit, and the RF unit in the integrated module separately. The RF module
amplifies and converts the RF signal to IF signal. The Digital process module converts the IF signal into baseband signal
via AD conversion and extraction, and filtering. After that, the IF signal will be amplified and converted to an RF signal
by the RF module for RF filtering and amplification. The Monitoring module monitors and controls the system parameters
and is the interface for both remote monitoring and local commissioning.
Power Supply Unit (PSU):
The PSU converts the input voltage into a stable DC supply
to provide power for the internal
functional modules.
Optical module:
Completes optical signal and RF signal conversion.
2.4
EQUIPMENT CONNECTORS
2.4.1
UHF PS DAS CONNECTORS
The PS DAS is designed for all cable entries to be routed from the right or left of the enclosure, as shown in the
following figure.
Figure 5: MU Equipment Connectors
Table 1: MU Equipment Connectors
