Troubleshooting - Panasonic PN23129A Operation Manual

T r o u b l e s h o
T r o u b l e s h o
If you find any problem, please take the following steps to check.
 LED indicators
 The power LED (POWER) is not lit.
 Is the power cord connected?
 Please confirm that the power cord is securely connected to the power port.
 The Link/Transmission LED (LINK/ACT.) is not lit.
 Is the cable correctly connected to the target port?
 Is each terminal connected to the target port compliant with its specifications?
 Auto-negotiation may have failed.
 Set the port of this switch or the terminal to half-duplex mode.
 Communications fail.
 Communications with all ports are down or slow.
 Are the communication speed and mode settings correct?
 If the communication mode signal cannot be properly obtained, apply half-duplex mode.
Switch the communication mode of the connection target to half-duplex mode.
Do not fix the communication mode of the connected terminal to full-duplex mode.
 Isn't the bandwidth usage rate of the backbone network to which this switch is connected excessively
high, or a loop occurring?
 Try separating this switch from the backbone network.
 PoE power supply is impossible (PoE supporting models only)
 The PoE power supply LED (PoE) is not lit.
 Is the cable appropriate to use and connected to a port that supports PoE power supply?
 Is the PoE-ready terminal connected to the port compliant with the IEEE 802.3af standard?
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