DRAKE DRMM4 Bedienungsanleitung PDF herunterladen (Seite 2)

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3 REAR PANEL CONNECTIONS

4 INSTALLATION

R1

IF IN

POWER

R2

12 V

GND

+5 V

R3

RF OUT

+12 V

GND

+5 V

CONNECTIONS AND CONTROLS

All connections to and from each upconverter

are made thro ugh the rear panel.

DESCRIPTION

Figure 3 sho ws a typical installation utilizing 4

DUC864 upconverters used with 4 TMQAM

modulators. A PS8 power supply module is

used to power all units.

DUC864

UPCONVERTERS

RACK MOUNTING

Adequate ventilation is very important in

multichannel installations. Units sho uld be

spaced apart by at least one panel height

wherever possible, and some air movement is

mandatory in enclosed rack cabinets. Exces-

sive heat will shorten component life and

modulator performance will be degraded

without proper cooling.

QAM MODULATOR

UNITS

F

igure 2

R1 - IF INPUT Connector

This is the 44 MHz IF input. The required level

is +30 dBmV (from TMQAM or DDC, etc).

R2 - DC INPUT Connector

This 3-pin connector (Male) accepts the

IF IN

PO WE R

44 M Hz

IF O U T P UT

ASI T RANSPORT

IF IN

PO WE R

44 M Hz

IF O U T P UT

ASI

TRANSPO RT

IF IN

PO WE R

44 M Hz

IF O U T P UT

ASI T RANSPORT

IF IN

PO WE R

44 M Hz

IF O U T P UT

ASI T RANSPORT

10 0-2 40 V ~

50 /6 0

Hz

85 WATTS

DC

OUTPUT S

X 8

12 V GND 5V

appropriate mating DC power cable. Observe

proper orientation and wiring.

+12 V

GND

+5 V

STREA M INP UT

POWER

+12 V

GND

+5 V

STREA M INP UT

POWER

+12 V

GND

+5 V

STREA M INP UT

POWER

+12 V

GND

+5 V

STREA M INP UT

POWER

R3 - RF OUTPUT Connector

This is t

he upconverter output.

RF OUT

+12 V

GND

+5 V

RF OUT

+12 V

GND

+5 V

RF OUT

+12 V

GND

+5 V

RF OUT

+12 V

GND

+5 V

DC OUTPUT RATI NG.

TOTAL

OF ALL OUTPUT S:

+5V:6 A

MAX.

+12V:2. 5A M AX.

FROM SATELLITE

DEMODULATOR OR

OTHER ASI DATA

STREAM

TO QAM

DISTRIBUTION

Figure 3

AC POWER

CONNECTOR

1 2 3 4 5 6 7 8

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