DRAKE DUC864 Manual - Page 8

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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.
+5 V
+5 V
TOTAL OF ALL OUTPUTS: +5V:6A MAX.
RF OUT
AC POWER
CONNECTOR
Figure 3
CABLE TV CHANNELS
Channel
Number
EIA/NCTA
Numeric
Equivalent
2
3
4
5
6
95
96
97
98
99
14
15
16
17
18
19
DC OUTPUTS X 8
12V GND 5V
20
21
22
7
8
9
+12V:2.5A MAX.
10
11
12
13
23
24
25
26
27
28
29
30
31
32
33
34
35
36
CHANNEL FREQUENCIES
CABLE TV CHANNELS
Center of
Channel
Center of
Channel
Channel
Number
EIA/NCTA
Frequency
Frequency
Numeric
in MHz
in MHz
Equivalent
303
57
37
309
63
38
69
315
39
79
321
40
327
85
41
93
333
42
99
339
43
345
105
44
351
111
45
117
357
46
123
363
47
369
129
48
135
375
49
141
381
50
387
147
51
393
153
52
159
399
53
165
405
54
411
171
55
177
417
56
183
423
57
429
189
58
435
195
59
201
441
60
207
447
61
453
213
62
219
459
63
225
465
64
471
231
65
477
237
66
243
483
67
249
489
68
495
255
69
501
261
70
267
507
71
273
513
72
519
279
73
285
525
74
291
531
75
537
297
76
543
77
549
78
5
CABLE TV CHANNELS
Channel
Center of
Number
Channel
EIA/NCTA
Numeric
Frequency
Equivalent
in MHz
79
555
80
561
81
567
82
573
83
579
84
585
85
591
86
597
87
603
88
609
89
615
90
621
91
627
92
633
93
639
94
645
100
651
101
657
102
663
103
669
104
675
105
681
106
687
107
693
108
699
109
705
110
711
111
717
112
723
113
729
114
735
115
741
116
747
117
753
118
759
119
765
120
771
121
777
122
783
123
789
124
795
125
801
126
807
127
813
128
819
129
825
130
831
131
837
132
843
133
849
134
855
135
861