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NG-IOM-ATT Release 1.2
July 12, 2019
4.4 DAC/WAC Unit
The NextGen CoolLinks™ controller contains a five-port Ethernet router as shown below. All Ethernet devices in the
system connect through this router. The right-most port connects to the main processor circuit board. The Ethernet
cable from the DAC/WAC connects to any open port (the ports on the router are not dedicated) and to the RJ45 plug on
the CoolLinks™ board as shown below. The router supports auto negotiation of transmission speeds as well as auto
MDI/MDI-X crossover to allow either crossover or patch cable connections for any third-party Ethernet devices.
Figure 7: CoolLinks™ DAC/WAC Unit Ethernet Connections
The NetAddr DIP-switch selects the last octet of the IP address of the CoolLinks™ board. The factory default setting for
all DAC/WAC units is all four switches in the down or off position corresponding to IP address 192.168.0.201. Note that it
is necessary to cycle power to the board for the changes to take effect however the switches on the DAC/WAC
CoolLinks™ board should NOT be changed from the factory setting.
Figure 8: CoolLinks™ DAC/WAC Unit Ethernet Address Settings
