Operators Manual
Operation
M55-ML3-UG, Rev A
46
Request Serial #
NU<01><00><01><F4><09><CR><LF>
Send Serial #
NU<00><01><09><74><32><31><31><32><2D><59><59><5A><
82><CR><LF>
The serial number is ”t2112
-
YYZ.”
8.7.2.
Alarm Reporting
Alarm reporting is handled through 2 commands. One reports a list of 2-byte alarm
codes while a second command responds with an English description for specific alarm
code.
The alarm code is broken into 2 bytes. The first byte designates the module where the
alarm exists, and the second byte is the alarm code. The alarm codes are arranged in a
priority manner. The lower the alarm code the higher the priority. The following table
highlights a segmentation of the priorities.
Priority Level
Alarm Code Range
High Priority
0x01-0x1f
0x20-0x3F
0x40-0x5F
0x60-0x7F
Medium Priority
0x80-0x9F
0xA0-0xBF
0xC0-0xDF
Low Priority
0xE0-0xFF
High priority alarms generally reflect major problems such as FPGA failures or
catastrophic failures.
Medium priority alarms are significant and need to be corrected but may not impact the
system.
Low priority alarms are considered warnings.
To attain the alarm description the 2-byte alarm code is sent to the unit and the unit will
respond with the full-length English description. The description consists of 2 parts. First
a 3 digit a module identifier followed by a colon, and then the description.
8.7.2.1.
Alarm Example
Alarm code 0x10 0x20
The alarm is being generated by module 0x10 and has a high priority 0x20.
Alarm Descri
ption “dem: FPGA
-
1 Fail”
The description shows that module 0x10 is the demodulator and the failure is due to
FPGA-1 failing to load
