Phoenix Contact 2700290, User Manual, Page: 13 / 154

Smart Managed Narrow Switch
8089_en_03 PHOENIX CONTACT
13
1.2 Status and diagnostics indicators
Please note that the meaning of the LEDs differs in Smart mode (see “Using Smart mode”
on page 20).
Des. Color Status Meaning
US1 Green On Supply voltage 1 within the tolerance range
Off Supply voltage 1 too low
US2 Green On Supply voltage 2 within the tolerance range
Off Supply voltage 2 too low
FAIL Red On Signal contact open, i.e., an error has occurred
Off Signal contact closed, i.e., an error has not occurred
A Link LED is located on the front of the SMN for each port
LNK
(Link)
Green On Link active
Off Link not active
An additional LED is located on the front of the SMN for each port. The function of the second LED (MODE) for each port
can be set using the MODE switch (see also example below). There are three options (during the boot process the mode
and port LEDs are permanently on):
ACT
(Activity)
Green On Transmitting/receiving telegrams
Off Not transmitting/receiving telegrams
SPD
(Speed)
Green ON (green) 100 Mbps
Off 10 Mbps if Link LED is active (for RJ45 ports only)
FD
(Duplex)
Green On Full duplex
Off Half duplex
FO
(Fiber Optic)
Orange Off The system reserve of the optical path is >2 dB
Flashing
0.5 Hz
The system reserve of the optical path is between 2 dB and 0 dB
Flashing
2 Hz
The system reserve of the optical path is <0 dB
On Diagnostic alarm
ACT/SPD/FD Yellow Flashing Switch is in Smart mode (see “Using Smart mode” on page 20)