The Microphone model is composed of 4 Mono Microphone or line level inputs and 4 stereo line level outputs. The inputs and outputs can be wired with the DB25 connectors or the RJ45 connectors. The top DB25 connector is for the inputs while the bottom DB25 is for outputs. A bank of 4 RJ45 is for Mic inputs and a bank of 4 RJ45 is for outputs.
Important !
The connector layout in the microphone model is different than any other xNode2. Traditionally the inputs are on the top RJ45s and outputs are on the bottom RJ45s. Due to the large difference in signaling between the input and output (microphone level vs line level), the design was changed where the microphone signals are isolated from the line output to reduce the risk of cross talk between the channels. Please make note of this change and use the rear silkscreening as reference on where the inputs are vs the outputs.
Power to the model is either with an AC power input or a PoE+ at the top network connection. The bottom network connection is a non PoE+ interface used for management or streaming redundancy.
Setup
Chapter Two describes how to assign an IP address to the xNode2. Chapter Three, In-Depth, describes the various pages available in the xNode2. Once you have your inputs inserted into the connector of choice, DB25 or RJ45, login to the HTML interface and select the I/O link. Give each AoIP Sender a name that describes the audio source. This becomes useful when browsing the network. Assign any gain needed for the source or leave at the default unity gain of 0. Each sender on the network needs a unique channel between 1 and 32767. A common model is to use the last octet of the IP address as a preamble to the channel number. For example, and address of 192.168.2.201 could utilize the channels 2011 - 2014. Figure out a scheme that works for your facility deployment. Define if the stream shall be a Live Stereo or Standard Stereo (likely Live since these are Microphone inputs). Determine if the microphone connected is a condenser microphone and if so you will need to apply phantom power to the microphone. The mode of the input is assumed to be microphone, but there is the option to switch it to line. Determine an appropriate mic gain that provides suitable audio. Press the Save button and now the xNode2 is streaming AoIP into the network.
The AoIP Receivers portion of the I/O page is similar in that the name field is useful for documenting what is connected to the xNode2 and thus receiving the audio in the AoIP stream. Define any gain values needed for each receiver or leave at the default unity gain. Use the channel picker to browse the network for the desired stream or type it in directly into the channel field if the channel number is known. Press the Save button and now the devices connected to the xNode2 are receiving audio (assuming there is audio in the received audio streams).
