Advantech EKI-2728MI, User Manual

Page: 26 / 28

EKI-2728MI_Manual_ed1.doc 18
Chapter 3 Troubleshooting
1. Power Input
Verify that is using the right power cord/adapter (+12~48 V
DC
and 24 V
AC
), please don’t
use the power adapter with DC output voltage higher than 48V, or it will burn this
converter down.
2. Cable
Select the proper UTP/STP cable to construct your network. Please check that you are
using the right cable. Use Unshielded Twisted-Pair (UTP) or Shielded Twisted-Pair
(STP) cable for RJ-45 connections: 100 Category 3, 4 or 5 cable for 10 Mbps
connections, 100 Category 5 cable for 100 Mbps, or 100 Category 5e/above cable for
1000Mbps connections. Also, be sure that the length of any twisted-pair connection
does not exceed 100 meters (328 feet).
3. Diagnosing LED Indicators
The switch can be easily monitored through panel indicators, which describes common
problems user may encounter and where user can find possible solutions, to assist in
identifying problems.
If the power indicator does not light up when the power cord is plugged in, user may
have a problem with power cord. Then check for loose power connections, power
losses or surges at power outlet. If user still cannot resolve the problem, contact the
local dealer for assistance.
If the Industrial switch LED indicators are normal and the connected cables are correct
but the packets still cannot transmit, please check your system’s Ethernet devices
configuration or status.