Comtech-ef-data SDM-2020 Manuale Utente Pagina 62

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SDM-2020 Satellite Demodulator Revision 4
Specification MN/SDM2020D.IOM
5–10
5.4 Fault Tree
Table 5-7. Fault Tree
DEMODULATOR
FLT
LED
FLT RLY
ALM
LED
ALM
RLY
RX AIS
SYNC
LED
COM EQ
FLT
INTERFACES
(see Note)
Carrier Detect ON ON ON ALL
IF Synthesizer ON ON ON ALL
I Channel ON ON ON ALL
Q Channel ON ON ON ALL
BER Threshold ON ON ALL
Module ON ON ON ALL
Configuration ON ON ON ALL
RX Interface:
Frame SYNC ON ON ON OFF ALL
Data Stable/AIS ON ON OFF ALL
Clock PLL ON ON ON ALL
FIFO ON ON ALL
Interface Module ON ON ON ALL
Buffer Overflow ON ON G.703
Buffer Underflow ON ON G.703
Buffer Clock Activity ON ON G.703
Buffer Full Warning ON ON G.703
2047 Lock ON ON
CEQ:
Battery/Clock ON
-12 Volt Supply ON ON
+ 12 Volt Supply ON ON
+ 5 Volt Supply ON ON
Controller ON ON
LNB ON
Note: The following list shows the current available interfaces:
RS422
LVDS
ASI/RS422
ASI/LVDS
ECL_HSSI
G.703
SMPTE 310M
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