DRAKE DUC864 Manual - Página 2

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3

REAR PANEL CONNECTIONS

R1
R2
R3
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
appropriate mating DC power cable. Observe
proper orientation and wiring.
R3 - RF OUTPUT Connector
This is the upconverter output.
IF IN
POWER
+12 V
+12 V
GND
GND
+5 V
+5 V
RF OUT
Figure 2
4

INSTALLATION

CONNECTIONS AND CONTROLS
All connections to and from each upconverter
are made through the rear panel.
DESCRIPTION
Figure 3 shows 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
44 MHz
44 MHz
IF OUTPUT
IF OUTPUT
IF IN
IF IN
IF IN
POWER
ASI TRANSPORT
POWER
ASI TRANSPORT
POWER
+12 V
STREAM INPUT
+12 V
STREAM INPUT
+12 V
GND
GND
GND
+5 V
+5 V
+5 V
POWER
POWER
+12 V
+12 V
GND
GND
+5 V
+5 V
RF OUT
RF OUT
RF OUT
FROM SATELLITE
TO QAM
DEMODULATOR OR
DISTRIBUTION
OTHER ASI DATA
STREAM
RACK MOUNTING
Adequate ventilation is very important in
multichannel installations. Units should 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
44 MHz
44 MHz
100-240 V ~
IF OUTPUT
IF OUTPUT
50/60 Hz
85 WATTS
IF IN
ASI TRANSPORT
POWER
ASI TRANSPORT
STREAM INPUT
+12 V
STREAM INPUT
GND
+5 V
POWER
POWER
+12 V
+12 V
GND
GND
DC OUTPUT RATING.
TOTAL OF ALL OUTPUTS: +5V:6A MAX.
+5 V
+5 V
RF OUT
AC POWER
CONNECTOR
Figure 3
DC OUTPUTS X 8
12V GND 5V
+12V:2.5A MAX.