Datanet Troubleshooting Guide - Siemens 2000592-001 User Manual

DataNET Troubleshooting Guide

Instructions
Configuration
Conflicts
Cable Connected to
Wrong Hub or Port
Example
52 • Troubleshooting
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:
1 Copper Connected
2 Copper Connected
Ethernet
Status: Connected to:
172.016.099.003,4A
172.016.099.003, 4B
UP
2000592-001