When Jugglers are added into the network and assigned to Network Project Groups, they are recognised and added into the Project running for that Network Project Group, becoming visible in the Project panel.

•Drag a Juggler or Jugglers from the Project panel into a Nodes assembly panel. If necessary expand the Nodes assembly panel and press V to view all, or zoom in to reveal more detail and text. Drag further Jugglers in, and position them on the grid as best fits your purpose.

•These Jugglers are now nodes. A Juggler that has been added to the Nodes panel has an indicator against it in the Project panel:

Naming and arrangement

With many Jugglers in various roles, you are probably working to a diagram of how they are connected and their functions. It is useful to bame and arrange your Jugglers in the Nodes panel (and/or use the alignment tools – see below) to best represent your diagram.

Juggler title bar

Identifies the Juggler name and allows the Canvas to be selected for all video channels in the Juggler.

GPIO
These four indicators correspond to the GPIO HD-BNC ports on the back panel 1-4 left to right.
Grey: not enabled (in Juggler properties)
Red: enabled but no signal present
Green: enabled and connected

Juggler node status bar information

Canvas Mode
Reflects the type of Juggler firmware being used: Windowing, or Warp and Blend (MPCDI).

Temperature
For internal monitoring of the Juggler.

Unit ID
Last 2 digits of the Juggler module’s IP address, to provide an identifier within the Project Group.

IP Address
Full IP address of the Juggler module.

Internal Comms
Indicates the status of communication within the Juggler module between the Linux processor running Compere and the main board processing the pixels.

The four Juggler video channels

Every Juggler has four channels of processing: 4 × Rx, 4 × Tx. Available processing channels are arranged left to right and coloured; unavailable channels (e.g. being utilised for the bus) are grey. Here are the essential parts of channel 2:

On the left is the square green Juggler module input pin, here DisplayPort #2 (DpRx : 2). It is showing green because a valid media feed has been detected on it.

Hint: Click any input or output pin to show its properties in the Properties panel.

➢See Video Channels Properties

Video Input

•This block accepts either the input to this video channel, and/or an input from the bus.

•With NDI enabled, any video appearing here is that arriving at the adjacent physical input for the channel.

•It can connect an input directly to a matched output, bypassing any further processing, or it can process an input in order to position it on the output canvas (i.e. in a named canvas window).

•An adjacent input pin does not have to be handled by this video channel. It could instead be selected in the bus for this Juggler, in order to pass it on to a different Juggler to handle (process to a window, or bypass to a matched output).

Process: this selector chooses the source for this channel to process. Select ‘Off’ if nothing to process. In the example shown here, DpRx : 2 has been selected as an input to process. This has connected it automatically to the Video Processing block, adding the green connecting link. You might equally want to take a media stream from the bus as an input for this channel to process.

Bypass: media can, if required, bypass all processing and go straight to the same-numbered channel output. Select ‘Off’ if nothing to bypass. This direct routing reduces bandwidth if no processing is required. A warning is given if the resolutions do not match and the pin will be yellow.

You can bypass one input and simultaneously process another in the same video channel.

Video Processing

If you process an input, you are locating it in a window on a canvas.

Canvas Select: select a named Canvas within which this channel will be displayed. The list is populated from Canvases added to the Project, named and placed in the Canvas assembly panel. This can be set from the title bar to apply to all available video channels per Juggler.

Window: select a Window of the selected Canvas, in which the channel media will be displayed (if required). The list is populated when the Canvas Windows are added and named.

Video Output

Output: select a Canvas Output for this channel. The list is populated when the Canvas Outputs are added and named.

Tx: select the port out from Juggler module to a display (square pin on the right-hand side of the Juggler node in Compere).

Note that when Tx here is assigned here to a Juggler output, the EDID of that output port will pass to the Canvas Output selected in the Output selector. The Canvas Output will adopt size and resolution of the EDID. This is a quick way of setting the properties of a Canvas Output, which can then be positioned in the Canvas panel.

See also:

➢Media connectors: Connecting Inputs and Outputs

Colours, pins and links

Channel headers, pins and links are grey if unavailable (for example channels dedicated in a Juggler module to a bus). Available channel headers will be coloured when available. Pins and links will be red if disconnected, and green if connected. A yellow pin indicates an incompatibility.

The small square pins on the left and right edges of a Juggler in Compere, are labelled as channel inputs (Rx, left) and outputs (Tx, right).

The larger round pins inside a Juggler in Compere represent connection points for processing media through a channel.

Links are drawn between pins to show these connections, and naturally can become difficult to trace and distinguish with many units. The Nodes toolbar button allows some clarification:

‘Show selected object links’, for example, will show links to, from and inside a selected Juggler only.

The square pins in the Bus block (upper right of each Juggler node) are the bus connections. These pins will show green when valid media is available on the bus lane.

Multiple selection

Whilst properties cannot be displayed for more than one object, you may want to move or arrange multiple Jugglers. Select a node by double-clicking on it, or click on its name in the Project panel. To select several nodes at once use Ctrl+select.

Nodes panel toolbar

The Juggler bus options

On the side of the Juggler node is the bus block. Jugglers can have one of two optical fibre bus options: 4-lane (2 × Rx and 2 × Tx video channels) and 8-lane (4 × Rx and 4 × Tx video channels). The pins on the left show green when the bus pin is connected. This example shows a fully connected 8-lane Juggler. Its green title bar shows it is active. An inactive bus is red.

Wider bus options with 12 and 16 lanes are being developed.

For how the bus connections correspond to the physical cabling, see Bus Connections in a Juggler System.

Page edited [d/m/y]: 26/09/2022