4
INSTALLATION
CHANNEL FREQUENCIES 5
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.
Figure 3
QAM MODULATOR
UNITS
AC POWER
CONNECTOR
TO QAM
DISTRIBUTION
FROM SATELLITE
DEMODULATOR OR
OTHER ASI DATA
STREAM
DUC864
UPCONVERTERS
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.
100-240 V ~
50/60 Hz
85 WATTS
12V GND 5V
DC OUTPUTS X 8
DC OUTPUT RATING.
TOTAL OF ALL OUTPUTS: +5V:6A MAX.
+12V:2.5A MAX.
44 MHz
IF OUTPUT
ASI TRANSPORT
STREAM INPUT
POWER
+12 V
+5 V
GND
RF OUT
+5 V
GND
+12 V
POWER
IF IN
RF OUT
+5 V
GND
+12 V
POWER
IF IN
44 MHz
IF OUTPUT
ASI TRANSPORT
STREAM INPUT
POWER
+12 V
+5 V
GND
RF OUT
+5 V
GND
+12 V
POWER
IF IN
44 MHz
IF OUTPUT
ASI TRANSPORT
STREAM INPUT
POWER
+12 V
+5 V
GND
RF OUT
+5 V
GND
+12 V
POWER
IF IN
44 MHz
IF OUTPUT
ASI TRANSPORT
STREAM INPUT
POWER
+12 V
+5 V
GND
Channel
Number
CABLE TV CHANNELS
Center of
Channel
EIA/NCTA
Numeric
Equivalent
2
3
4
5
6
95
96
97
98
99
14
15
16
17
18
19
20
21
22
7
8
9
10
11
12
13
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Frequency
in MHz
57
63
69
79
85
93
99
105
111
117
123
129
135
141
147
153
159
165
171
177
183
189
195
201
207
213
219
225
231
237
243
249
255
261
267
273
279
285
291
297
Channel
Number
CABLE TV CHANNELS
Center of
Channel
EIA/NCTA
Numeric
Equivalent
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
Frequency
in MHz
555
561
567
573
579
585
591
597
603
609
615
621
627
633
639
645
651
657
663
669
675
681
687
693
699
705
711
717
723
729
735
741
747
753
759
765
771
777
783
789
795
801
807
813
819
825
831
837
843
849
855
861
Channel
Number
CABLE TV CHANNELS
Center of
Channel
EIA/NCTA
Numeric
Equivalent
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
Frequency
in MHz
303
309
315
321
327
333
339
345
351
357
363
369
375
381
387
393
399
405
411
417
423
429
435
441
447
453
459
465
471
477
483
489
495
501
507
513
519
525
531
537
543
549