HARDWARE ID SWITCHES Four rotary switches for setting the hardware ID. Located behind tamperproof panel.
FAULT LED Indicates an unexpected condition within the network interface. Some fault conditions will also light the RX Error and/or TX Error LEDs; this is to indicate whether the unexpected condition is in the receive or transmit processes. The errors are reported by a series of flashes.
LINK LED Indicates the physical layer connection has been established between the CAB 4n and the network switch. The status of the connection is also indicated by the Link LED in the block in NWare.
HARDWARE ID INDICATORS or AUDIO METERS. These LEDs are dual-purpose:
Before a valid network connection is in place, they indicate the hardware ID. They are used in conjunction with the hardware ID switches (see item #1 above) to set the Hardware ID, which allows NWare and the NIONs to communicate with, and control, the CAB 4n.
Once the CAB 4n is being controlled by the NION software, they become peak reading LED ladder displays, indicating audio input/output levels. For inputs, the signal level is displayed after the A/D converters. For outputs, the signal level is displayed after the D/A converters.
POWER LED Indicates that the CAB 4n is powered from an AC mains power source.