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SDM-300A Satellite Modem
D TS
B UF FE R C L O CK = R X (SATE LLIT E C LO C K)
D ATA
C LO C K
R EC EIV E
TR A N S M IT
IN TE R N A L
O SC ILL ATO R
TX C LO C K = TX TE R R E S T RIA L
S LAV E
Figure 3-28. EIA-422, EIA-232, or V.35 Master/Slave Clocking Diagram
Rev. 4
TX C LO C K = TX TE R R E S T R IA L
S D
T T
H IG H
S TA BILITY
O SC ILL AT IO N
TE R R E S TR IA L
ST
B O P
T R AN SM IT
R E C E IV E
EX T R EF
R D
R T
B U FFE R C LO C K = TX T ER RE STR IA L
M A S TER
C LO C K
B UF F ER
D ATA
S ATE LL IT E
O S C IL LAT IO N
T X
IN T ER N A L
O S C IL LATO R
S AT E LL ITE
D ATA
CL O C K
B U FF E R
R EC O VE R Y
C LO C K
R T
R D
E XT R E F
BO P
S T
(L O O P )
T IM IN G
H IG H
S E LE C TE D )
S TA B ILITY
TT
S D
Operation
D TS
3–89
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