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Operation Manual
I-Tech Series Power Amplifiers
page 30
System Location
This parameter is user-settable to any alpha-numeric string of 30 char-
acters or less. The intended use is to communicate a unique descrip-
tion of the device location to a network. This object is stored in
presets.
System Contact
This parameter is user-settable to any alpha-numeric string of 30 char-
acters or less. The intended use is to communicate the designated
contact person (in case of service or other network issue) to the net-
work. This object is stored in presets.
Firmware Version
This parameter is configured at the factory and is read-only. The
intended use is to communicate the presently loaded CobraNet mod-
ule firmware version to a network.
MAC Address
This parameter is configured at the factory and is read-only. The set-
ting defines a unique IEEE802-recognized address for use with any
Ethernet based network.
IP Address
This IP address is for the CobraNet control ONLY. It is used by SNMP
agents such as CobraCad™* to control CobraNet specific functions.
This IP address should not be confused with the TCP/IQ’s IP address
that is used to control and monitor the amplifier.
4.7.3 CobraNet Input Routing
CobraNet input routing includes the following controls:
CobraNet Receive Bundles
The amplifier can receive four unique CobraNet Bundles (RxA, RxB,
RxC, RxD). Each Bundle includes an “Active” indicator to indicate
whether the particular Bundle is being actively transmitted onto the
network.
CobraNet Receive Channels
Each CobraNet Bundle contains up to eight digital audio channels.
Each channel is selected at its respective transmitter to contain none,
16-, 20- or 24-bit audio sample data. A total of two audio channels can
be processed by the I-Tech amplifier at any one time. Any of the eight
channels on a bundle can be can be routed to either of the two pro-
cessing channel inputs on the I-Tech amplifier.
• Channel Label: Each received digital audio channel can be
assigned a user-specified label to indicate intended use, source or
other information. The label is stored in presets along with the bundle
number and receive channel information.
4.7.4 CobraNet Output Routing
CobraNet output routing includes the following controls:
CobraNet Transmit Bundles
CobraNet-equipped amplifiers can transmit up to four unique Cobra-
Net Bundles (TxA, TxB, TxC, TxD). Each Transmit Bundle includes the
following controls and monitor functions:
• Receiver Count: This meter reports the number of CobraNet nodes
actively receiving the Bundle being sourced to the network by this
bundle.
• Transmit Position: This meter reports the transmitter’s relative
position as assigned by the CobraNet Conductor. Lower numbers are
transmitted before higher numbers.
• Transmit Priority: This control adjusts the relative priority for the
particular transmitter. Higher numbers indicate a higher priority. One
may choose to increase the transmitter priority for an emergency page
microphone in a heavily loaded network. The Transmit Priority object
is stored in presets.
CobraNet Transmit Channels
Each CobraNet Bundle can contain up to eight unique digital audio
channels. Each channel is selected at its respective transmitter to con-
tain none, 16-, 20- or 24-bit audio sample data. A total of 32 channels
can be transmitted by a single I-Tech amplifier at any one time; how-
ever, only 4 channels can be sent on up to four Bundles. The CobraNet
Transmit Channel object is stored in presets.
• Channel Label: Each transmitted digital audio channel can be
assigned a user-specified label to indicate intended use, source or
other information. The Channel Label object is stored in presets. The
amplifier provides four audio channels onto the CobraNet network.
• Output Amplifier Audio: By sampling the actual output audio of
the amplifier, CobraNet allows remote access and monitoring of each
amplifier channel at the output of the amplifier! CobraNet
extends the “Listen Bus” feature to any network user, allowing them to
listen to the output of any networked amplifier from any location on the
network.
• Balanced Audio Inputs: This allows the amplifier to be used not
only as a CobraNet receiver for amplifier audio, it provides a remote
access point to allow audio to go onto the CobraNet network. In appli-
cations where a single pair of audio inputs is required into CobraNet,
this feature provides a very cost effective means of CobraNet Input.
4 Advanced Operation
*CobraCAD is a software tool that provides a simple graphic user interface for the design, configuration and monitoring of Cobra-
Net networks. It is available for download from Peak Audio’s website at www.peakaudio.com.