Troubleshooting Terminal, Printer and Serial Device Connections - Edition 4 (32022-90030)

24 Chapter 2
Troubleshooting Procedures
Troubleshooting Pathway
Troubleshooting Pathway
A practiced method for problem resolution is to first identify the
problem and then identify alternative causes of that problem. Break
the big problem into smaller, more manageable components. By
breaking the problem into manageable and testable components, the
cause can be easily isolated. A recommended troubleshooting pathway
is shown in Figure 2-1.
Figure 2-1
Each of the numbered circles is a task used to troubleshoot problems in
networking environments. By completing these tasks, isolation of the
cause of the problem is likely to occur; this is the most difficult part of
troubleshooting. After the cause of the problem has been identified,
take an appropriate action to resolve the problem. Each task is
described below.
1. Troubleshooting at the Device. First, do some simple verifications at
the device. This can rule out causes such as improper device settings
and loose connections. Simple observations can also indicate if the