Comtech EF Data LPOD Installation And Operation Manual page 111

LPOD Outdoor Amplifier / Block Up Converter (BUC)
Serial-based Remote Product Management
•
Thermal Shutdown – A temperature fault is indicated if the unit is +>90°C. This creates a summary fault and will cause the unit
to mute itself and switch to the back-up unit (if in a redundant system). However, the 10V supply to the FET transistors will
remain on until the unit reaches the thermal shutdown temperature of ≥ >95°C. For protection reasons, the unit will shut down
the 10V supply to the power transistors at temperatures >95°C.
•
Firmware checksum error at power up.
• FPGA done indicator error at power up.
•
*Block Up Converter (BUC) unlocked.
•
Redundant waveguide switch position fault (applies to redundant mode operation only).
•
Redundant inter-unit link fault (applies to redundant mode operation only).
• Low Noise Block Down Converter (LNB) current over limit.
The following parameters can be user defined to report an alarm condition, a fault condition, or the parameter can be ignored
completely by masking it:
•
RF amplifier low output power (user adjustable value).
•
Internal reference oscillator unlocked.
• *LNB current outside specified window.
•
*LNB voltage out of tolerance.
*NOTE: If this parameter generates a fault condition, the RF output will be muted.
5–3
Revision 9
MN-LPOD