User's Manual

Nexus FT RMR Troubleshooting
044-05207 Rev A 4-3
15 CU battery
fault
CU Warning CU RAM battery fault. The battery for the RAM on the CU PCBA
has a voltage outside the normal 2.7 to 3.5 Volt. An alarm may be
initiated at start-up if the RMR has been stored out of power for a
long time. Suggested remedy: Ensure jumper P3 on the CU PCBA
is mounted to charge the battery
Ceasing The cause of the alarm has ceased
16 SW load error CU Error Software load error. An error has occurred during a software load
process. The flash memory does not contain a proper software.
Suggested remedy: Check the CU software using the OM-Online
SW Manager. Do NOT restart the RMR
17 Log cleared CU None Log memory has been cleared. The check sum in the Events Log
memory is faulty. The log is cleared. Can be caused of a bad RAM
battery backup or low voltage to the RAM
18 RTC restarted CU None The time is changed by the operator (logged to keep track of
changes made to the RTC)
Warning Time reset to 1994-01-01. The RTC was unable to keep track of
the time and did a reset. Suggested remedy: Ensure jumper P3 on
the CU PCBA is mounted to charge the battery
19 RTC error Error RTC does not operate. The CU has detected an error in the RTC
operation which makes the time unreliable. Suggested remedy:
Replace the CU PCBA
21 External
alarm 1
External Config External alarm input EA1 active more than 1 second
Ceasing External alarm input EA1 no longer active
22 External
alarm 2
External Config External alarm input EA2 active more than 1 second
Ceasing External alarm input EA2 no longer active
23 External
alarm 3
External Config External alarm input EA3 active more than 1 second
Ceasing External alarm input EA3 no longer active
24 External
alarm 4
External Config External alarm input EA4 active more than 1 second
Ceasing External alarm input EA4 no longer active
Warning No connection at alarm call. The RMR has tried to call as many
times as stated in the alarm call settings. No connection was
established. This alarm does not generate a new attempt to report
alarm by alarm call.
34 Login failed None Invalid RMR password
40 Battery fault RCU Error The backup battery on the RCU does not work properly.
Suggested remedy: Check cables or replace battery
Ceasing The cause of the alarm has ceased
Table 4-2 Alarm Troubleshooting (Continued)
ID Alarm Text Alarm Unit Alarm Description