Connectable components
9.5 CBE30-2
NCU 7x0.3 PN
154 Manual, 09/2011, 6FC5397-1EP40-0BA0
LED displays
The four ports of the X1400 interface provide integrated LEDs for displaying the link and the
activity. The front panel of the CBE30-2 is also fitted with two LEDs (Fault and Sync), which
indicate the bus status.
Table 9- 74 LED displays
Name Color Status Meaning
Link port Green lit The physical connection exists.
Activity port Yellow lit Data is being received or transmitted.
not lit CBE runs without errors, data is being exchanged.
lit Bus fault:
No physical connection to a subnet/switch
Incorrect transmission rate
Full duplex transmission is not activated.
Fault Red
flashing (2 Hz)
Failure of a connected NCU
At least one of the assigned NCUs cannot be
addressed
Incorrect or no configuration.
not lit Clock cycle system of the Control Unit is not
synchronized to the send cycle. An internal substitute
clock of the same size as the send clock is generated.
lit Clock cycle system of the Control Unit has
synchronized to the send cycle and data exchange is
running.
Sync Green
flashing (0.5 Hz) Clock cycle system of the Control Unit has
synchronized to the send cycle and data is being
cyclically exchanged.
9.5.2 Installation/Mounting
CAUTION
Option boards should only be inserted and removed when the Control Unit and option
board are in a no-current condition.
CAUTION
Option boards may only be operated by qualified personnel. The ESD notices must be
observed.
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