Comnet CWGE2FE24MODMS, Инструкция по установке и эксплуатации, Страница: 80 / 84

74
6. Problem Solving
This section is intended to help you solve the most common problems on the
CWGE2FE24MODMS switch.
Incorrect connections
The switch port can auto-detect straight or crossover cables when you link the switch with
other Ethernet devices. For the RJ-45 connector use the correct UTP or STP cable,
10/100Mbps port use 2-pair twisted cable and Gigabit 1000T port use 4-pair twisted cable.
If the RJ-45 connector is not using the correct pin in the right position, the link will fail.
For a fiber connection, please notice that the optical fiber mode and optical fiber module
should be match.
Faulty or loose cables
Look for loose or obviously faulty connections. If they appear to be OK, make sure the
connections are snug. If that does not correct the problem, try a different cable.
Non-standard cables
Non-standard and miss-wired cables may cause network collisions and other network
problems and can seriously impair network performance. A category 5 cable tester is a
recommended tool for every 100Base-T network installation.
Improper Network Topologies
It is important to make sure that you have a valid network topology. Common topology
faults include excessive cable length and too many repeaters (hubs) between end nodes.