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TAU-72.IP/TAU-36.IP Universal Network Terminal 19
2.7
LED Indication
Power
1
, Alarm, Status, SFP
LEDs located on the front panel indicate the current state of the device. Table
3 lists possible states of the LEDs.
Table 3—Device status LED indication
Indicator
Indicator State
Device State
Power
solid green
power on
off
power of
Status
solid red
operating system is not loaded (together with LED Alarm)
main application is not running (together with LED Alarm,
flashing mode
Fatal
)
solid yellow
device initialization in progress, subscriber ports are not
initialized yet
address is not obtained through DHCP (if dynamic address
obtaining method is enabled)
solid green
subscriber ports are initialized, device is in operation
off
operating system loaded, board type identified
flashes red, yellow, and
green
factory
Safemode
(together with LED Alarm, flashing
mode
Fatal
)
Alarm
solid red
alarm – port blocking, the output value of the parameter
sensor platform within range
solid on
Warning—port blocking, operating system loading
flashes slowly
(once per second)
Error (failure)—module sensor failure (SFP module
installed, but there is no link)
flashes rapidly
(once per 200ms)
Fatal (critical failure)—connection of the main application
to subscriber ports is lost
off
normal state
SFP (SFP0, SFP1)
solid green
optical link is present
off
no optical link
Ethernet interface state is shown by 1000/100 socket built-in LED indicators.
Table 4—Light indication of Ethernet 10/100/1000 interfaces
LED/Status
LED/Status
Yellow LED
10/100/1000
Green LED
10/100/1000
solid on
solid on
Port operates in 1000Base-T mode, data transfer is inactive
solid on
flashes
Port operates in 1000Base-T mode, data transfer is active
off
solid on
Port operates in 10/100Base-TX, data transfer is inactive
off
flashes
Port operates in 10/100Base-TX, data transfer is active
2.8
'F' Function Button Operation
To reboot the operating device, press and hold 'F' button located on the front panel of the device for 5
seconds.
Alarm
LED will become solid red. Also, this button allows you to reset the device to factory settings
when you forget or don't know device IP address or password used for login. To do this, turn the device on while
holding 'F' button. Hold the button until
Status
LED begins to flash yellow, green and red alternatively, and
1
For TAU-72.IP/TAU-36.IP v1.0, v 2.0 only