Milan Technology MIL-SM2401M-STK - Manual (Page 204)

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Diagnostic LED Indicators
The switch can be easily monitored through panel indicators to assist in
identifying problems.
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.
„ Cabling
RJ-45 ports: Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP)
cable for RJ-45 connections: 100Ω Category 3, 4 or 5 cable for 10Mbps
connections or 100Ω Category 5 cable for 100Mbps connections. Be sure that
the length of any twisted-pair connection does not exceed 100 meters (328 feet).
100BASE-FX and 1000BASE-X Fiber port: Multi-mode fiber connector types must
use 50/125 or 62.5/125
μm multi-mode fiber cable. Two devices may be
connected over a 2-kilometer distance. Single-mode fiber connector types must
use 9/125
μm single mode fiber cable. Two devices may be connected over a15
to 60-kilometer distance in full duplex operation in single mode.
1000Base-TX ports use all 8 wires for communication and requireCat-5 or better
cable quality.