10
4. Troubleshooting
The switch can be easily monitored through panel indicators to assist in
identifying problems. This section describes common problems you may
encounter and where you can find possible solutions.
Diagnosing LED Indicator
If “LINK/ACT” indicator does not light up after connection, you may check
whether network interface (e.g., a network adapter card on the attached
device), network cable, or switch port is defective or not. Verify that the
switch and attached device are power on. Be sure the cable is plugged
into both the switch and corresponding device. Verified the proper cable
type is used and its length does not exceed specified limits.
Power
IF “Power” indicator does not light up when the power cord is plugged in,
you may have a problem with power outlet, or power cord. However, if the
switch powers off after running for a while, you should check for loose
power connections, power losses or surges at power outlet. IF you still
cannot resolve the problem, contact your local dealer for assistance.
Cabling
A
、
RJ-45 ports:
Use unshielded twisted-pair (UTP) or shield
twisted-pair (STP) cable for RJ-45 connections: 100
Ω
Category3,4
or 5 cable for 10Mbps connections or 100
Ω
Category 5 cable for
100Mbps connections. Also be sure that the length of any twisted-pair
connection does not exceed 100 meters (328 feet).
B
、
100Base-FX fiber port:
Fiber multi-mode connector type must use
62.5/125 um multi-mode fiber cables. You can connect two devices
over a 2-kilometer distance.
