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Figure 4-2
SCALANCE XR324-12M with MM900
Slot number
S1
S2
S3
S4
S5
S6
Media
modules used
MM992-2CUC
MM992-2CUC
MM992-2CUC
MM991-2 (SC) MM991-2 (SC) MM991-2 (SC)
Port number
P1
P2
P1
P2
P1
P2
P1
P2
P1
P2
P1
P2
Slot number
S7
S8
S9
S10
S11
S12
Media
modules used
MM992-2CUC
MM992-2CUC
MM992-2CUC
MM991-2
MM991-2
MM991-2
Port number
P1
P2
P1
P2
P1
P2
P1
P2
P1
P2
P1
P2
4.3
LED display
The "RM" LED for the "redundancy manager" function
The "RM" LED indicates whether or not the device is operating in the role of redundancy
manager and whether or not the ring is operating error-free.
LED color
LED status
Meaning
-
off
The device is not operating in the role of "redundancy manager".
green
on
The device is operating in the role of redundancy manager. The ring
is working without problems, monitoring is activated.
green
flashes
The device is operating in the role of redundancy manager. An in‐
terruption has been detected on the ring and the device has switched
through.
The "SB" LED for the standby function
This LED shows the status of the standby function.
LED color
LED status
Meaning
-
off
The standby function is disabled.
green
on
The standby function is enabled. The standby section is passive.
green
flashes
The standby function is enabled. The standby section is active.
Device description
4.3 LED display
SCALANCE XR-300M
22
Compact Operating Instructions, 11/2019, A5E02661171-15
Summary of Contents for SCALANCE XR-300M
Page 10: ...Introduction SCALANCE XR 300M 10 Compact Operating Instructions 11 2019 A5E02661171 15 ...
Page 12: ...Safety notices SCALANCE XR 300M 12 Compact Operating Instructions 11 2019 A5E02661171 15 ...
Page 82: ...Index SCALANCE XR 300M 82 Compact Operating Instructions 11 2019 A5E02661171 15 ...