red lion EL212F, Installation Manual

Page: 23 / 28

EL212 Installation Guide Rev 16-Jan-14 Page 23 of 28
Section 6 LED Indicators
Overview
The EL212 switches have 1 or 2 communication LEDs for each port, dual power LEDs, an
“OK” output LED and an overall status LED.
LED Location
All Ports
All 28 ports each have only 1 LED. Regardless of the type of port (RJ45 versus SFP) or
type of transceiver the LED behaves as follows:
Green LED
ON Solid
Link Only - Indicates that there is a proper Ethernet connection (Link)
but no communications activity is detected.
Green LED
ON Flashing
Link & Activity - Indicates that there is a proper Ethernet connection
(Link) and communications activity is detected.
OFF
No link - Indicates that there is not a proper Ethernet connection
(Link). Make sure the cable has been properly connected at both ends.
Status LED
The Status LED indicates the overall health of the switch. It is normally ON solid indicating
that no internal CPU or software problems are detected. It will flash on power up or reset.
Otherwise, if it is OFF or flashing for an extended period of time then a problem is detected.
In this case, please contact Red Lion for support.
Power LEDs
There are two Power LEDs (labeled Pwr 1 for primary power and Pwr 2 for backup power)
that indicate if there is power applied to the respective input.
“OK” Alarm
LED
The “OK” LED indicates the status of the alarm relay output. This LED will be normally ON
when there is no alarm or error condition (such as loss of a power input). Otherwise, when
there is an alarm then it will be OFF.