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Meaning in display mode D
LED
L1 / L2
L
*
Limit voltage = 17 VDC
)
The P1, P2, ... LEDs for the port status
The P1, P2, ... LEDs show information on the status of their port (transmission speed, mode,
port monitoring). The meaning of these LEDs depends on the display mode ("DM" LED).
Meaning in display mode A
LED color
-
green
yellow
SCALANCE X-300M
Compact Operating Instructions, 10/2014, A5E02630801-06
Color
Status
-
off
green
on
-
off
orange
on
green
on
LED status
off
on
flashes once per second
flashes 3 times per sec-
ond
flashes 4 times per sec-
ond
flashes / lit
Meaning
X308-2M (24 VDC)
Power supply L1 / L2 is not
monitored. If L1 / L2 falls
below 17 V *
, the signaling
)
contact does not respond.
Power supply L1 / L2 is
monitored. If L1 / L2 falls
below 17 V *
, the signaling
)
contact responds.
Power supplies L1 and L2 are not monitored. If L1 or L2
falls below 17 V, the signaling contact does not respond.
Power supply L1 or L2 is monitored. If L1 or L2 falls below
17 V, the signaling contact responds.
Power supplies L1 and L2 are monitored. If L1 and L2 fall
below 17 V, the signaling contact responds.
Meaning
No valid link to the port (for example station turned off or
cable not connected).
Link exists and port in normal status. In this status, the
port can receive and send data.
Link exists and port in "blocking" status. In this status, the
port only sends and receives management data (no user
data).
Link exists and port turned off by management. In this
status, no data is sent or received via the port.
Port exists and is in the "monitor port" status. In this sta-
tus, the data traffic of another port is mirrored to this port.
Receiving data at port.
With SCALANCE X-300 devices, both the receipt and the
sending of data is indicated for the optical gigabit ports.
Description
3.5 LED display
X308-2M TS (12 VDC)
Power supply L1 / L2 falls
below 12 V,
the signaling contact does
not respond.
Power supply L1 / L2 is
monitored. If L1 / L2 falls
below 12 V, the signaling
contact responds.
19
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