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 Attero Tech LLC 2013 Page 13 614-00002-07
4.2 – Transmit Bundles
The bundle transmitter setup tab (see Figure 10) contains all the parameters to set up a
devices bundle transmitters.
Edit boxes containing the bundle number used for each bundle transmitter are shown at the
top. Below these, the submap grid shows which audio channels are allocated to a bundle.
The number in the top right hand corner of each cell is the sample bit depth. Below the
submap grid, drop down boxes for setting the Subcount, Unicast Mode, and Max Unicast
parameters are given.
Clicking on a bundle edit box or on a cell in the submap grid will select the item so it can be
edited. The bundle number accepts values from 0 to 65535 though private bundles (65280 to
65535) are not supported. For the submap, valid values are from 0 to 32 with a zero meaning
no audio. See section 4.2.1 for more details about bundle numbers and submap settings.
To alter the bit-depth in the submap grid, right click anywhere within the desired cell. This
will display a pop up menu showing the possible options for the bit-depth. The current
selection will be ticked. Click on an alternate value or click anywhere except the menu to keep
the current one.
*Note: Changing the bit depth has consequences. Adding more bits/sample increases the amount data sent over the
network and reduces the number of channels a bundle can hold. Further Information on this can be found on the CobraNet
Programmers Guide.
Other settings available for each transmitter are:
o Subcount – This drop down list configures the bundle to only use the specified number of audio channels. The
cells in the grid above are colored based on this setting. Channels that are being used have a white background
and channels which are not being used have a grey background (see Figure 10). However, the colors shown relate
to the value in the device not the value on the form. If this parameter is changed on the form, it must be applied
for the colors in the grid to update.
o Unicast Mode – This drop down menu specifies the transmission mode. It works in conjunction with the Max
Unicast value. The table below describes the operation of each mode.
Mode Value Description
M 0 Multicast always.
M-U 1 1 Unicast a single channel. Multicast if more.
M-U 2 2 Unicast up to 2 channels. Multicast if more.
M-U 3 3 Unicast up to 3 channels. Multicast if more.
M-U 4 4 Unicast up to 4 channels. Multicast if more.
U 0x7FFFFF
Unicast only. The device can still send to
multiple channels using multi-unicast.
o Max Unicast – This drop down menu specifies the maximum number of unicast destinations supported
simultaneously by the transmitter
1
. It can be set between 1 and 4. Its actual affect is dependant on the setting on
Unicast Mode. If Max Unicast is greater than or equal to Unicast Mode, the bundle will switch to Multicasting
before the limitation on unicasts set by this parameter is reached. In this case, Max Unicast has no effect. If Max
Unicast is less than Unicast Mode and the number of receivers exceeds Max Unicast, the receivers will not receive
audio. However, if the number of receivers exceeds the Unicast Mode value, the bundle switches to Multicasting
and this parameter then has no effect. This parameter is ignored if Unicast Mode is set to Multicast only.
1
A transmitter can service up to four unicast receivers. The number of unicast destinations transmitted to will never exceed
this internal capacity limitation.
Figure 11 - Receiver
Submap