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GFK-1527A Chapter 4 Normal Operation 4-17
4
Example 5: Role switches allowed on both units Secondary Unit Active
Note: Secondary unit
active
is not a recommended mode of operation when using the GHS
Control Strategy.
Primary Unit Secondary Unit
Role
Backup Active
Operating Mode
RUN/ENABLED RUN/ENABLED
OK LED on RCM
ON ON
LOC_RDY LED on RCM and %S Bit
ON ON
LOC_ACT LED on RCM and %S Bit
OFF ON
REM_RDY LED on RCM and %S Bit
ON ON
REM_ACT LED on RCM and %S Bit
ON OFF
Example 6: Role switches not allowed on either unit, Secondary Unit
Active
Note: Secondary unit
active
is not a recommended mode of operation when using the GHS
Control Strategy.
Primary Unit Secondary Unit
Role
Backup Active
Operating Mode
RUN/DISABLED RUN/ENABLED
OK LED on RCM
ON ON
LOC_RDY LED on RCM and %S Bit
OFF ON
LOC_ACT LED on RCM and %S Bit
OFF ON
REM_RDY LED on RCM and %S Bit
ON OFF
REM_ACT LED on RCM and %S Bit
ON OFF
Example 7: Role switches allowed on both units, Secondary Unit Active
Note: Secondary unit
active
is not a recommended mode of operation when using the GHS
Control Strategy.
Primary Unit Secondary Unit
Role
Backup Active
Operating Mode
RUN/DISABLED RUN/DISABLED
OK LED on RCM
ON ON
LOC_RDY LED on RCM and %S Bit
OFF OFF
LOC_ACT LED on RCM and %S Bit
OFF ON
REM_RDY LED on RCM and %S Bit
OFF OFF
REM_ACT LED on RCM and %S Bit
ON OFF