Fluke DTX-1800 Technical Reference Handbook page 302

DTX Series CableAnalyzer
Technical Reference Handbook
Wire pairs 12 and 36 are reversed
•
Mix of 568A and 568B wiring standards.
•
Crossover cables used where not needed. They are typically used only between two switches or hubs.
•
Tester is connected to a NIC (network interface card) with a straight-through cable. The reversed result is normal in this
situation, since a NIC transmits on pair 12 while a switch or hub transmits on 36.
Utilization averaging above 40 %
Too many stations on the network.
Utilization spikes above 40 %
Broadcast storms.
11-18
Table 11-2. Diagnosing Low-Level Network Problems (cont.)
The utilization, collision, and error percentages given below are only
guidelines. Acceptable percentages can vary among networks.
Note