Specifications

MiRICi-E3T3 Ver. 2.2 Indicators 3-1
Chapter 3
Operation
This chapter:
• Provides a detailed description of the MiRICi-E3T3 LED indicators and their
functions
• Lists alternative methods of the product configuration, explaining I
2
C and Web
browser management applications and illustrating management menus.
For additional information on parameters and menus, refer to
Chapter 4 .
3.1 Indicators
The front of MiRICi-E3T3 has two status LEDs. Refer to Table 3-1 for the
functions of the LED indicators. The LEDs indicate link status and operation
modes during normal operation as well as while powering up.
When MiRICi-E3T3 is powered on, the LOS LED turns on for five seconds. For
MiRICi-E3T3/FE, the LINK LED also turns on for five seconds. During the first five
seconds, MiRICi-E3T3 is ready to respond to I
2
C messages without signal
stretching. Then while MiRICi-E3T3/FE boots up its application software and
performs startup configuration, the LOS LED blinks three times (if MiRICi-E3T3
mode is NORMAL or CONFIG).
Table 3-1. LED Indicators
LED Function
MiRICi-E3T3/FE:
LINK (green)
ON – Ethernet link is connected
OFF – Ethernet link is disconnected
MiRICi-E3T3/GbE:
LINK/ACT (green)
ON – Ethernet link is connected
Blinking – Activity on Ethernet link
OFF – Ethernet link is disconnected
LOS (red) ON – No T3 signal detected
OFF – Valid T3 signal detected
LOS at power-up Blinking three times – MiRICi-E3T3 is in NORMAL or CONFIG mode
Continuously blinking – MiRICi-E3T3 is in INIT DB mode
OFF – MiRICi-E3T3 is in SW DOWNLOAD mode
Certain Ethernet equipment may cause the LINK or LINK/ACT LED to turn on
before the T3 cable has been connected.
Note