Yamaha MY16-CII MY16-CII Owners Manual - Page 10

Controls & Functions  Panel Connectors and Indicators      MAC XXX *XX XX XX XX XX XX*  [PRIMARY] and  [SECONDARY] Connectors These are 100Base-TX Ethernet connectors. The MY16-CII provides two Ethernet connectors to allow construction of redundancy networks employing dual (primary and secondary) circuits. The [PRIMARY] connector is for connection to the main circuit, while the [SECONDARY] connector is for connection to the backup circuit. If a failure occurs on the PRIMARY circuit (e.g. a cable failure, accidental disconnection, network switch failure, etc.) the SECONDARY circuit will automatically take over. Basic redundancy network setup is described on page 13. Use STP (Shielded Twisted Pair) cables to protect against electromagnetic interference.  [IN USE/CONDUCTOR] Indicators These are the LED indicators to the left of the [PRIMARY] and [SECONDARY] connectors. These indicators will light when power has been properly applied to the MY16-CII card. These indicators will flash when the MY16-CII is operating as the network conductor. If an error occurs on the connected network, both the [PRIMARY] and [SECONDARY] connector [IN USE/CONDUCTOR] indicators will flash orange. If both the [PRIMARY] and [SECONDARY] connector [IN USE/CONDUCTOR] indicators flash orange, try disconnecting the corresponding Ethernet connectors. The indicator will go out if a cable, network switch, or other device connected to the network has failed. If the indicator continues flashing orange even after the cable is disconnected, there may be a fault in the MY16-CII card itself. In this case please refer the problem to qualified Yamaha service personnel.  [LINK/ACTIVITY] Indicators These are green indicators to the right of the [PRIMARY] and [SECONDARY] connectors. The indicator for each connector will light or flash slowly when a network cable is properly connected, and will flash rapidly while data is being properly transferred via the corresponding connector.  MAC Address The MAC (Media Access Control) address allows the CobraNet Manager to differentiate between individual MY16-CII unuts. 10 MY16-CII Owner's Manual