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5. Troubleshooting
This chapter contains information to help you solve issues. If the Industrial Gigabit PoE+ Switch is not
functioning properly, make sure the Industrial Gigabit PoE+ Switch was set up according to instructions in
this manual.
The Link LED does not light up
Solution:
Check the cable connection and also try to swap one new cable.
Performance is bad
Solution:
Check the speed duplex mode of the partner device. The Industrial Gigabit PoE+ Switch is run at
Auto-negotiation mode and if the partner is set to half duplex, then the performance will be poor.
1000Base-T port link LED lights up, but the traffic is irregular
Solution:
Check that the attached device is not set to full duplex. Some devices use a physical or software
switch to change duplex modes. Auto-negotiation may not recognize this type of full-duplex setting.
Why the Industrial Gigabit PoE+ Switch doesn’t connect to the network
Solution:
Check per port LED on the Industrial Gigabit PoE+ Switch. Try another port on the Industrial Gigabit
PoE+ Switch. Make sure the cable is installed properly. Make sure the cable is the right type. Turn
off the power. After a while, turn on the power again.
Why after my PoE PD device
is connected to MC352-4P-2S, it cannot power on?
Solution:
1.
Please check the cable type of the connection from MC352-4P-2S (port 1 to port 4) to the other
end. The cable should be an 8-wire UTP, Category 5 or above, EIA568 cable within 100
meters. A cable with only 4-wire, short loop or over 100 meters, all will affect the power supply.
2.
Please check and assure the device is fully complied with IEEE 802.3af/IEEE 802.3at standard.
Can I install S30-SXX or other non wide temperature SFP module into SFP slot of Industrial
Gigabit PoE+ Switch?
Solution:
Yes, you can. However, since the S30-SXX and other non wide temperature SFP modules
cannot
operate under -40 Degree C, it must be brought to attention. Please pay attention to this point.
