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Comtech EF Data SNM-1010L User Manual

Page 153

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SNM-1010L Data/Control Modem

Revision 0

Clocking Options

MN/SNM1010L.OM

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 5-1. EIA-449, EIA-530, and V.35 Master/Master Clocking Block Diagram

5–3

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