Chapter 4
Troubleshooting
Verify that you are using the right power cord/adapter. Don’t use the power adaptor
with DC output voltage higher than the power rating of the equipment. Otherwise, it will
burn down.
Select the proper UTP cable to construct the user network. Use unshielded twisted-pair
(UTP) or shield twisted-pair (STP) cable for RJ-45 connections: 100
Ω
Category 3, 4 or
5 cable for 10Mbps connections, 100
Ω
Category 5 cable for 100Mbps connections, or
100
Ω
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).
Diagnosing LED Indicators
To assist in identifying problems, the switch can be easily monitored through panel
indicators, which describe common problems the user may encounter and where the
user can find possible solutions.
If the power indicator does not light up when the power cord is plugged in, you may
have a problem with power cord. Then check for loose power connections, power
losses or surges at power outlet. If you still cannot resolve the problem, contact the
local dealer for assistance.
If the LED indicators are normal and the connected cables are correct but the packets
still cannot be transmitted, please check the user system’s Ethernet devices’
configuration or status.
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Summary of Contents for EKI-2548I
Page 1: ...EKI 2548I 8 port 10 100TX Managed Ethernet Switch with Wide Operating Temperature User Manual ...
Page 8: ...viii ...
Page 18: ...2 4 Dimensions units mm 152 59 6 Figure 2 4 1 Front View of EKI 2548I EKI 2548I_Manual_ed2 10 ...
Page 19: ...50 48 5 53 5 9 6 41 3 40 Figure 2 4 2 Side View of EKI 2548I 11 Chapter2 ...
Page 20: ...15 2 9 6 Figure 2 4 3 Rear View of EKI 2548I EKI 2548I_Manual_ed2 12 ...
Page 21: ...114 62 105 0 62 9 Figure 2 4 4 Top View of EKI 2548I 13 Chapter2 ...
Page 29: ...21 Chapter3 Configuration Sections include z Web Browser CHAPTER ...
Page 62: ...Figure 3 1 31 QoS Configuration EKI 2548I_Manual_ed2 54 ...
Page 68: ...EKI 2548I_Manual_ed2 60 ...
Page 69: ...61 Appendix A Troubleshooting CHAPTER ...
Page 71: ...63 Appendix A Pin Assignments Wiring APPENDIX ...