User Interface Manual
© Copyright 2006 Microwave Data Systems Inc. All Rights Reserved
6-6
MDS FIVE Series
05-4574A01, Rev. C
SNR Low
Upper
Modem
The signal-to-noise ratio
is below the minimum
operational level of the
link as set during
configuration. Fault
detection via modem
status polling, comparing
Eb/N0 value to threshold
value in configuration
table. Polling interval 5
sec.
N/A
N/A
Major
Synthesizer
Unlock
Upper
Modem
Modem synthesizer has
unlocked. Fault detection
via modem status polling.
Polling is done in
conjunction with Modem
Unlock polling.
N/A
N/A
Critical
Fan Failure
Controller
The Fan rotational speed
is too low. (Controller
card LED flashed red
rather than orange). Fault
detection via polling fan
controller status. Polling
interval 10 sec.
Controller
21
Major
Controller
Card Fault
Controller
The CPU has detected a
fault in the controller
card. (Controller card
LED flashes red rather
than orange). Fault
detection via software.
Controller
22
Critical
Low Battery
Voltage
Controller
The CPU has detected a
low-battery voltage
condition. (Controller
card LED flashes red
rather than orange). Fault
detection via software
polling RTC via controller
FPGA.
Controller
23
Info
Power
Supply
Fault Lower
Power
Supply
The Power Supply card
has indicated a fault.
Fault detection via polling
GPIO. Polling interval 5
sec.
N/A
31
Critical
Table 6-1
Alarm
Affected
Component
Description
LED to RED
Alarm
Code
Severity