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Figure 6-1, V.35 m – Comtech EF Data SDM-300L3 User Manual

Page 214

background image

SDM-300L3 Satellite Modem

Revision 1

Clocking Options

MN/SDM300L3.IOM

6–4

TXCLOCK = TX TERRESTRIAL

TXCLOCK = TX TERRESTRIAL

TRANSMIT

TRANSMIT

INTERNAL

OSCILLATOR

INTERNAL

OSCILLATOR

HIGH

STABILITY

OSCILLATOR

HIGH

STABILITY

OSCILLATOR

SATELLITE

SATELLITE

CLOCK

RECOVERY

CLOCK

RECOVERY

BUFFER

BUFFER

RD

RD

RT

RT

BUFFER CLOCK = TX TERRESTRIAL

BUFFER CLOCK = TX TERRESTRIAL

MASTER

BOP

BOP

DTS

DTS

EXT REF

EXT REF

RECEIVE

RECEIVE

SD

SD

TT

TT

ST

ST

MASTER

TX

TERRESTRIAL

TX

TERRESTRIAL

CLOCK

DATA

CLOCK

DATA

Figure 6-1

. EIA-422, EIA-232,

OR

V.35 M

ASTER

/M

ASTER

C

LOCKING

D

IAGRAM