Siemens ADVANCE NETWORK COMMUNICATIONS BOARD/DATANET 20005 User Manual download pdf (Page 62)

DataNET Troubleshooting Guide

Instructions

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

• configuration conflict,

• link signal quality problem.

Configuration

Conflicts

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.

Cable Connected to

Wrong Hub or Port

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.

Example

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

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Siemens ADVANCE NETWORK COMMUNICATIONS BOARD/DATANET 20005 User Manual Page 62