Mobile WiMAX Outdoor RAS SPI-2331 System Description/Ed.02
© SAMSUNG Electronics Co., Ltd.
3-3
(Continued)
Board
Name
Quantity
(Sheet)
Function
ULRB
1
- Power amplifier function
Amplifies RF signal level to provide the RF output at the antenna port,
which is requested by a service provider
- TDD switch function
- Separates sending signal and receiving signal
- Low Noise Amplifier(LNA) function
Low noise amplification of the received RF signal to amplify the signal to
the signal level at which down converting is possible
- Filter function
Passes the signal within a service provider's bandwidth and rejects other
signals
ULPU
1
U-RAS Light series-3 Power Unit
Converts DC -48 V input to DC +12 V
Heater
1
System heating function for cold start and low temperature operation under
outdoor conditions
ULPM-
2FE
1
U-RAS Light series-3 Line Protection Module-2 Fast Ethernet
- Protects external electric interface lines from an electrical overload such
as lightning
- Mounted on the system in case of 10/100Base-Tx backhaul(2 ports)
Содержание Mobile WiMAX Outdoor RAS SPI-2331
Страница 2: ...EPBD 001880 ED 02 Mobile WiMAX Outdoor RAS SPI 2331 System Description ...
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Страница 57: ...CHAPTER 3 Outdoor SPI 2331 Architecture 3 24 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Страница 87: ...CHAPTER 5 Additional Functions and Tools 5 2 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
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