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Operation
D TS
BU F FER C LO C K = TX TE RR ES T RIAL
C LO C K
R E CO V E RY
R EC E IVE
TR A N S M IT
IN TE RN A L
O S C IL LATO R
T X C LO C K = T X T E R R E S TR IA L
M ASTE R
Figure 3-27. EIA-422, EIA-232, or V.35 Master/Master Clocking Diagram
3–88
TX C LO C K = T X T ER R E ST R IA L
S D
TT
H IG H
S TA BILITY
O S C IL LATO R
S T
B O P
TR A N S M IT
R E C EIV E
EX T R EF
T X
T E R RE S T R IA L
R D
R T
B UF FE R C LO C K = T X T ER R E ST R IA L
M A S TER
C L O C K
B U F FER
D ATA
S ATE LL ITE
TX
TE R R E S TR IA L
O S C ILLATO R
IN TER N A L
O S C ILLATO R
S AT E LLITE
D ATA
C LO C K
B U FFE R
R EC O VE R Y
C LO C K
R T
R D
E XT R E F
BO P
S T
H IG H
S TA B ILITY
TT
S D
SDM-300A Satellite Modem
D T S
Rev. 4
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