Ruijie RG-AP680-AR Hardware Installation And Reference Manual page 8

5.3 Hardware Maintenance ......................................................................................................... 36
6 Troubleshooting ............................................................................................................................. 37
6.1 General Troubleshooting Procedure .................................................................................... 37
6.2 Common Troubleshooting Procedures ................................................................................ 37
6.2.1 Ethernet Port Is Not Working After the Ethernet Cable Is Plugged In .................. 37
6.2.2 LED Is Off for a Long Time ......................................................................................... 37
6.2.3 LED Is Steady Red ....................................................................................................... 38
6.2.4 LED Is Steady Green ................................................................................................... 38
6.2.5 LED Keeps Blinking Blue at an Interval of 0.2s (in Fit Mode) .................................. 38
6.2.6 LED Does Not Turn Steady Blue or Blinking Blue .................................................... 38
6.2.7 No Wireless Signal Searched ..................................................................................... 38
7 Appendix ......................................................................................................................................... 39
7.1 Connectors and Media ........................................................................................................... 39
7.2 Cabling Recommendations ................................................................................................... 42
7.3 Optical Modules and Specifications ...................................................................................... 47
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