13.1.2 Operation If the "E1" or "E2" LED on the ET-LAN Unit Lights or Flashes
How the ERROR LEDs work
The ERROR LEDs on the ET-LAN unit light or flash when an error occurs in the unit itself, or when a
communication error occurs.
"E1" flashing: Recovery possible error
"E1" lighted: Initialization processing error
"E2" flashing: Warning error
"E2" lighted: System error
Unit operation if an ERROR LED lights/flashes
ERROR LED status
When "E1" is flashing
When "E1" is lighted
When "E2" is flashing
When "E2" is lighted
Note:
The "E2" LED also lights if an error occurs in the transmission line during an external loopback test.
ET-LAN unit operation
Operation is continued.
Operation is continued.
Operation is continued.
This notifies the user of a run
away unit, or another problem
involving the unit. Normal
operation cannot be continued.
CPU unit operation
Operation is continued.
Operation is continued.
Operation is continued.
If the "ALM" LED is lighted,
-
operation is stopped.
In any other case, operation is
-
continued.
13-3