JMA-9100/7100 Installation Manual > 3.INSTALLATION OF DISPLAY UNIT > 3.12  DISPLAY UNIT LEDS FOR VARIOUS SIGNALS
3ļ¼41
3
Fig 3-36: Serial Signal LED(when connected to the reception port with reversed polarity)
 
3.12.2 Power supply status
Fig 3-37: Power Supply Status LED
A green LED illuminates during normal operation. 
Light turns off in case of an abnormality.
IEC61162-1/2  Transmit
+
-
DATA
IEC61162-1/2  Receive
+
-
DATA
LED
OFF GREEN OFF ORANGE OFFCORRECT
IEC61162-1/2  Transmit
+
-
DATA
IEC61162-1/2  Receive
+
-
DATA
LED
BOTHORANGEWRONG ORANGE ORANGEOFF
ā time
ā time
POWER SUPPLY
STATUS LED
OK: Green