Comtech EF Data CIM-550 Specifiche Pagina 113

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CiM-550 IP Enabled Satellite Modem Rev. 2
Theory of Operation CD/CIM550.IOM
87
BUFFER DISABLE CLOCK MODE
RX DATA
RX CLOCK
(RT)
RECEIVE
DATA
INTERFACE
RX
BUFFER
PLL
CIRCUIT
CLOCK
VCXO
DIRECT
DIGITAL
SNTHESIZER
DATA FROM FEC
DECODER/DEFRAMER
RX SYMBOL
CLOCK FROM
DEMOD
BUFFER ENABLE
TX=RX CLOCK MODE
RX DATA
RX CLOCK
(RT)
RECEIVE
DATA
INTERFACE
RX
BUFFER
DATA FROM FEC
DECODER/DEFRAMER
TX CLOCK
(TT)
TRANSMIT
DATA
INTERFACE
TX
FIFO
PLL
CIRCUIT
CLOCK
VCXO
DATA TO
MODULATOR
CIRCUIT
BUFFER ENABLE
TX<>RX CLOCK MODE
RX DATA
RX CLOCK
(RT)
RECEIVE
DATA
INTERFACE
RX
BUFFER
PLL
CIRCUIT
CLOCK
VCXO
DIRECT
DIGITAL
SNTHESIZER
DATA FROM FEC
DECODER/DEFRAMER
TX CLOCK
(TT)
TRANSMIT
DATA
INTERFACE
TX
FIFO
Figure 6-2. RX Clock Modes
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