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SDM-300L3 Satellite Modem
Clocking Options
DTS
TRA N SM IT
F
IGURE
TX CLO CK + TX T ERRES TRIA L
SD
CLO CK
RECO V ERY
HIG H
STAB ILITY
O SCILLATO R
TE RRESTRIAL
BO P
TRA NSM IT
RECEIVE
TX
TERRESTRIAL
RD
DATA
CLO CK
BUF FER CLO CK = TX TERRE STRIA L
M ASTER
BUFFER CLO CK = RX (S ATELLIT E CLO CK)
CLO CK
BUFFER
REC O V ERY
SATE LLITE
TX
TERRESTRIAL
RECEIVE
INTERNAL
O SCILLATO R
TX CLOC K = TX TERRE STRIAL
SLAVE
6-4. IDR/IBS G.703 M
DATA
CLOCK
TX
INTERNAL
O SCILLATO R
SATE LLITE
DATA
CLO C K
BUFFER
RECO V ERY
CLOCK
R D
BO P
HIG H
STAB ILITY
O SCILLATO R
SD
CLOCK
RECOVERY
/S
C
ASTER
LAVE
LOCKING
6–7
MN/SDM300L3.IOM
DTS
N O TE : TE RREST RIAL
EQ UIPM ENT MUS T
R ECO V ER T HE CL O CK
FRO M R ECEIV ED DATA .
D
IAGRAM
Revision 1
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