
1.Series 16i/18i/21i, Power Mate i MAINTENENCE INFORMATION VI. MAINTENANCE B-63644EN/02
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1.1.2 LED Indications
The Fast Ethernet board/Fast data server for LCD-mounted type
16i/18i/21i incorporates the following LEDs: Four green STATUS
LEDs and one red ALARM LED for indicating the status. Three green
LEDs and one red LED for indicating the communication status. The
figure below shows the locations of these LEDs. The table below
explains the LED lighting states.
In the following explanations, the LED lighting states are expressed as
follows:
o: Off n: On ¶: Blinking à: Don't care
CD38R
LED4 (GREEN)
LED3 (GREEN)
LED2 (GREEN)
LED1 (GREEN)
ALM (RED)
RX (GREEN)
TX (GREEN)
BTX (GREEN)
COL (RED)
LIL (GREEN)
LED lighting sequence at power on
No. LED indication 1234 Fast Ethernet/Fast data server state
1 STATUS oooo Power off
2 STATUS nnnn Initial state after power on
3 STATUS onnn MPU initialized.
4 STATUS oonn Firmware downloaded.
5 STATUS ooon Control migration to OS
6 STATUS nnno OS PHASE1
7 STATUS onno OS PHASE2
8 STATUS nono OS PHASE3
9 STATUS oono OS PHASE4
10 STATUS ¶ooo Startup completed.
The system enters the No.10 status when the Fast Ethernet/Fast data
server starts normally. This status is maintained until an error occurs.