KBC Networks ESUL8P-PC2 - Manual (Page 11)

Ethernet Switch User Manual
Manual-ESUL8P-PC2_Series_HW-Rev1201
Copyright © KBC Networks Ltd. Page 11 of 15 www.kbcnetworks.com
3 Troubleshooting
3.1 Self-testing
When the device is powered on, all LEDs on the front panel will flash twice,
indicating that the ports are running normally and the Power (PWR1/2) indicator
lights will be illuminated if power is connected to the respective input.
If problems are encountered when using this Ethernet switch please check the
following:
 Verify that the correct power supply unit is being used; this unit requires a
48Vdc supply.
 Ensure that the correct cables are being used to construct your network:
o Unshielded Twisted Pair or Shielded Twisted Pair for RJ45 connections
o 100Ω Cat 3 cable or above for 10Mbps connections
o 100Ω Cat 5 cable or above for 100Mbps connections
o 100Ω Cat 5e cable or above for 1000Mbps connections
o Twisted pair connection must not exceed 100m (328 feet)
 See section 2.7 for LED status indicators.