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4.1.5. Digital section
The digital section consists of a digital modem, TDD/TDMA framer, wireless MAC processor, and
system controller. These functionalities are equipped in the WT-ASIC.
The digital modem performs modulation and demodulation of transmitting and receiving burst
signals.
The TDD/TDMA framer constructs and deconstructs radio burst frames. It alse performs
scrambling, encryption, and error correction functionalities.
The wireless MAC processor converts between the Ethernet frames and the wireless MAC
frames in the radio channel.
The system controller performs operating parameter setting, state monitoring, control and testing
for the entire unit. It also communicates with the AP processer via the DMF channel.
4.1.6. Interface section
The interface section provides the physical interrfaces of Ethernet for user interface and serial
interface for the receiving level measurement terminal. It has a lightning surge protector to
protect the unit against external surges.
4.1.7. Power supply
The power supply section generates various voltages used within the unit from +24V input power.
Содержание NT337-XL2
Страница 1: ...0 JRC FWA SYSTEM INSTRUCTION MANUAL Rev 3 4 24 SEP 2008...
Страница 34: ...2 11 2 2 1 2 AP RFU Omni Antenna Mounting Bracket in mm Figure 2 3 Mounting Bracket...
Страница 37: ...2 14 2 2 2 2 AP RFU Sectoral Horn Antenna Mounting Bracket in mm Figure 2 6 Mounting Bracket...
Страница 38: ...2 15 2 2 3 AP IFU in mm Figure 2 7 External View of the AP IFU a...
Страница 39: ...2 16 2 2 3 1 AP IFU Nameplate Nameplate a in mm Figure 2 8 Nameplate 1 Blank non RoHS R RoHS 1...
Страница 40: ...2 17 2 2 4 WT in mm Figure 2 9 External View of the WT 60 a b c 61 190 190 d...
Страница 43: ...2 20 2 2 5 WT External Antenna Figure 2 12 External View of the WT External Antenna...
Страница 126: ...6 103 Length of PVC tape wrapping Small window Ethernetcable cable Spacer CS sleeve PVC tape 65 22...
Страница 137: ...7 114 Figure 7 2 Configure the WT master Step1 Step4 Step3 Step2 Step5 Step6...
Страница 168: ...7 145 START END PVC tape Self bonding tape Spacer Small window Length of PVC tape used for wrapping...
Страница 187: ...11 164 JRC FWA SYSTEM Instruction Manual H 7YZCM0101B Rev 3 4 24 SEP 2008...
