Appendix
A-3
Table A.1.1 LED indication contents of Fnet master group
Segment Error type LED status Error contents
FMM_00
Being in self diagnosis of internal memory 1 in this
module
FMM_01
Being in self diagnosis of internal memory 2 in this
module
FMM_02 Being in self diagnosis of communication
FMM_03
During power on
Being in diagnosis of CPU and interface
FMM_04 Module is not LAS.
FMM_05
Normal
communication
Module is LAS.
FMM_06 Error in self diagnosis of internal memory 1
FMM_07 Error in self diagnosis of internal memory 2
FMM_08 Error in self diagnosis of communication
FMM_09 Error in diagnosis of interface chip
FMM_10 Error in diagnosis of interface RAM
FMM_11 Error 1 in diagnosis of CPU and interface
FMM_12 Error 2 in diagnosis of CPU and interface
FMM_13
Hardware error
Error 3 in diagnosis of CPU and interface
FMM_14
FMM_15
System operation
error
System error during operation
FMM_16 Error in configuration of network
FMM_17 Repeated station No., abnormal terminal resistance
FMM_18 Cable cut off/Short
FMM_19
FMM_20
Specified length of cable is not proper or hardware
error of this module
FMM_21
Abnormal
communication
Error in configuration of network
FMM_22 Interface error(stopped) for LAS
FMM_23
Interface error
Interface error(stopped) for not LAS
FMM_24
FMM_25
FMM_26
FMM_27
Not restorable
error
Hardware error of communication module
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