Specifications
32 MDS 1710A/C and MDS 2710A/C/D MDS 05-3447A01, Rev. F
Minor Alarms—report conditions that, under most circumstances will 
not prevent transceiver operation. This includes out-of-tolerance condi-
tions, baud rate mismatches, etc. The cause of these alarms should be 
investigated and corrected to prevent eventual system failure.
Event Code Definitions
Table 8 contains a listing of all event codes that may be reported by the 
transceiver.
Table 8. Event Codes 
Event 
Code
Event 
Class Description
01 Major Improper software detected for this radio model.
02 Major The model number of the transceiver is unprogrammed.
04 Major One or both of the internal programmable synthesizer loops is 
reporting an out-of-lock condition.
06 Major An unrecoverable fault was detected on the A-to-D chip. The 
radio will not receive data.
07 Major One or more of the radio’s internal voltage regulators is 
reporting a failure. The radio will not operate.
08 Major The system is reporting that it has not been calibrated. Factory 
calibration is required for proper radio operation.
09 -- Not used.
10 Major The internal microcontroller was unable to properly program 
the system to the appropriate EEPROM defaults. A hardware 
problem may exist.
11 -- Not used.
12 Major Receiver time-out. No data received within the specified 
receiver time-out time.
13 Major Transmitter time-out. The radio was keyed for a duration 
exceeding the time-out timer setting. (This alarm clears the 
next time the radio keys.)
14–15 -- Not used.
16 Minor Not used.
17 Minor A data parity fault has been detected on the DATA 
INTERFACE connector. This usually indicates a parity setting 
mismatch between the radio and the RTU.
18 Minor A data framing error has been detected on the DATA 
INTERFACE connector. This may indicate a baud rate 
mismatch between the radio and the RTU.
19–24 -- Not used.
25 Minor The 5.6 volt power regulator is out-of-tolerance. If the error is 
excessive, operation may fail.
26 Minor The DC input voltage is out-of-tolerance. If the voltage is too 
far out of tolerance, operation may fail.
27, 28 -- Not used
31 Minor The transceiver’s internal temperature is approaching an 
out-of-tolerance condition. If the temperature drifts outside of 
the recommended operating range, system operation may fail.










