CDM-425 Advanced Satellite Modem
Revision 0
Front Panel Operation
6–80
MN-CDM-425
6.2.3
SELECT: Monitor Menu Branch
Monitor: Live-Alarms Stored-Events ACM
Stats Rx-Params RemEbNo AUPC CnC IP (
)
Use the
◄ ►
arrow keys to select a parameter. Press
ENTER
.
6.2.3.1 Monitor: Live-Alarms
Live Unit=None
Alarms Rx=Demod Lock Tx=No Clock (
)
Live BUC=None
Alarms LNB=None
(
)
Six alarm types are available between two screens, as shown in the preceding examples. Use the
▲▼ arrow keys to navigate between these
read-only
pages. The
highest
priority alarm currently
active for each of the alarm types is as follows:
Alarm Type
Description
Unit
PSU
Power supplies (+5V, +12V, -5V, -12V, etc.) are always monitored by
an onboard supervisory ICs.
Tx and Rx Synth
The PLLs in the IF sections are monitored for an unlocked condition.
Power Cal
Calibration data stored in EEPROM is checked at power-up to verify
that the factory calibration has not been corrupted.
FPGA
Downloads are verified to have been loaded successfully.
Hi-Stab Freq Ref
Module
No PLL Lock – This will suppress the Tx carrier.
Temperature
The RF sections of the modem and the main FPGA are monitored for
excessively high temperatures that could affect the functioning and/or
reliability of the unit.
Содержание CDM-425
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Страница 575: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix B B 13 MN CDM 425 Figure B 8 VersaFEC 2 Short Block...
Страница 576: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix B B 14 MN CDM 425 Figure B 9 VersaFEC 2 Short Block...
Страница 587: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix E E 3 MN CDM 425 Figure E 1 TX Clock Modes...
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Страница 744: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX...