Siemens X-400 ユーザーズマニュアル

Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches 
C79000-G8976-C186-03 

113

The two LEDs of slot 5 or the four LEDs of slots 9 through 11 of the basic device 
indicate various port statuses depending on the set display modes. The displays 
have the same significance for all ports on all slots of the basic device and the ex-
tender modules EM495-8 and EM496-4. 

In display mode A, the current port status is displayed. 

P1 
P2 
P3 
P4 

 

off 

No valid link to the port (for ex-
ample station turned off or cable 
not connected) 

 Green 

on 

Link 

exists. 

 

 

flashes three times per 
period 

Port turned off by management. 

 

 

flashes four times per pe-
riod 

Port is monitored port. 

 Yel-

low 

flashes / lit 

Receiving data at port. 

 

 

F

L 1

L 2

P o w e r   M o d u l e   L E D s

C P U   -   L E D s

R M

S T B Y

D M 1

D M 2

P o r t   -   L E D s

P 1

P 2

P 3

P 4

D I   -   L E D s

I N 1 / I N 5

I N 2 / I N 6

I N 3 / I N 7

I N 4 / I N 8

Figure 6-29 

Display of the port status of port 1