Data Interfaces
SDM-2020 Satellite Demodulator
A–18
Rev.3
Pin #
Signal Function/Name
Type
Comment
2
System GND/REFCLKB
O/GND
Mod,
Jumper selectable
SCT output for Modulator
3
Data 7 A(MSB/Serial)
I
Mod
4
Data 6 A
I
Mod
5
Data 5 A
I
Mod
6
Data 4 A
I
Mod
7
Data 3 A
I
Mod
8
Data 2 A
I
Mod
9
Data 1 A
I
Mod
10
Data 0 A
I
Mod
11
DVALID A
I
Mod, Modulator Ignores
12
SYNC A
I
Mod
13
Cable Shield
I
Mod
14
Clock B
I
Mod
15
System GND/REFCLKA
O/GND
Mod/Demod
Jumper selectable
SCT output for Modulator
16
Data 7 B (MSB/Serial)
I
Mod
17
Data 6 B
I
Mod
18
Data 5 B
I
Mod
19
Data 4 B
I
Mod
20
Data 3 B
I
Mod
21
Data 2 B
I
Mod
22
Data 1 B
I
Mod
23
Data 0 B
I
Mod
24
DVALID B
I
Mod
25
SYNC B
I
Mod
A.3.4.2 Auxiliary,
J5
This port provides for other modem-specific signals not otherwise defined on the data
connectors.
A.3.4.2.1
Connector Pinout, J5
The connector is a sub-miniature, 9-pin D female, with threaded jack nuts (refer to
Table A-10 for connector pinout).
Differential pairs are LVDS compatible.
Note:
The sense of differential signal pairs is a logic “1” when “B” is positive with
respect to “A.”
Содержание SDM-2020
Страница 20: ...SDM 2020 Satellite Demodulator Introduction Rev 3 1 5 2 Data and symbol rates become effective January 1999...
Страница 30: ...SDM 2020 Satellite Demodulator Introduction Rev 3 1 15 Figure 1 7 16QAM 3 4 7 8 Reed Solomon Decoder...
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Страница 35: ...SDM 2020 Satellite Demodulator Installation Rev 3 2 3 Figure 2 1 Typical Rack Installation...
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Страница 212: ...SDM 2020 Satellite Demodulator Glossary Rev 2 g 3 W Watt...
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