Chapter 4: Troubleshooting4-2 7F06-02 FDDI SmartSwitch Interface Module User’s Guide4.2 PORT RECEIVE LEDSTable 4-1 indicates the state of the receive port.4.3 PORT TRANSMIT LEDSTable 4-2 indicates the state of the transmit port.4.4 A/B LINK LEDSTable 4-3 indicates the state of the A/B Link LEDs.Table 4-1 Port Receive LEDsLED Color StateYellow (Flashing) Data activity (flashing to steady on indicates rate)Off No activity, port can be disabled or enabledTable 4-2 Port Transmit LEDsLED Color StateGreen (Flashing) Data activity (flashing to steady on indicates rate)Off No activity, port can be disabled or enabledTable 4-3 Link LEDsA P S B StateGreen N/A N/A Green Ports Enabled & ActiveGreen Green Off Green THRU A, MAC on Primary,Secondary Bypasses BoardGreen Green Yellow Green THRU A, MAC on Primary,No MAC on Secondary