Siemens 2000592-001 ユーザーズマニュアル

If a DataNET communications link fails to establish check for a:  

• configuration 

conflict, 

•  link signal quality problem.  

 

If the ANCB_DN port DNETA or DNETB LED is never green, or 
intermittently flashes between green and red, a configuration conflict 
exists. Configuration conflicts can be caused by cabling or improper 
software configuration parameters. 

  

Verify that the Channel A DataNET link is connected to the A Hub half 
and that the Channel B DataNET link is connected to the B Hub half. 
Verify that both Channels A & B utilize the same port number on their 
respective Hub half. Then display the Port Status screen by connecting a 
PC to the Configuration Port, logging in, and typing display links. Verify 
that the two Ports are connected as expected. 

The following example shows that port #1 (DataNET Channel A) is 
connected to the DataNET Hub whose IP address is 172.016.099.003 on 
port #4, Hub half A and port #2 (DataNET Channel B) is also connected 
to the DataNET Hub whose IP address is 172.016.099.003 on port #4, 
Hub half B. 

local> display links 

Port:    Medium:       Status:             Connected to: 

1        Copper  Connected            172.016.099.003,4A   

2        Copper  Connected           172.016.099.003, 4B  

Ethernet                    UP 

•  Troubleshooting