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Troubleshooting
This section is intended to help you solve the most common problems on the MIL-S2400 and MIL-
S1600 Switches.
n 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.
n Non-standard cables
Non-standard and miswired cables may cause numerous network collisions and other network problem,
and can seriously impair network performance. A category 5 cable tester is a recommended tool for
every 100Base-TX network installation.
n Improper Network Topologies
It is important to make sure that you have a valid network topology. You should make sure that your
network topology contains no data path loops. Between any two ends nodes, there should be only one
active cabling path at any time. Data path loops will cause broadcast storms that will severely impact
your network performance.
Diagnosing LED Indicators
The Switch can be easily monitored through panel indicators to assist in identifying problems,
which describes common problems you may encounter and where you can find possible solutions.
If the power indicator does turn on 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, 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.
n Cabling
A. RJ-45 ports: Use unshielded twisted-pair (UTP) or shield twisted-pair ( STP ) cable for RJ-
45 connections: 100O Category 3, 4 or 5 cable for 10Mbps connections or 100O 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 50,62.5/125 um multi-
mode fiber cable. You can connect two devices over a 2-kilometer distance. However, Fiber
single-mode connector type must use 9/125 um single- mode fiber cable. You can connect
two devices over a 60- kilometer distance in full duplex operation.