Bundle Configuration

Loop Bundles

Loop bundles are created when bundles with common connectors or end points are routed along different paths.

Loop

Bundle Examples

Electrical Wiring Interconnect System (EWIS) loops (Aerospace) — Bundles with common end points separated into multiple parallel bundles to avoid electrical interference.
Routing loops (Automotive / Aerospace) — Bundles split around two paths because of insufficient space to route the bundles.
Multi-entry connector loops — Multiple bundles from different paths that terminate at a common entry connector.

Figure 59: Loop Bundle Representation

Loop

Bundle Manipulation

Loop bundles can be manipulated:

On flex bundles and in non-full scale diagrams, you can increase the graphical length of bundles in a loop.
In the 2019.1 release, the shape of loop bundles in full scale diagrams can be manipulated without disconnecting the loop.

For additional steps to modify the layout of bundles in harness designs and formboard layouts using manipulation handles, see Bundle Manipulation Overview.

Marker

Node

A marker node is a reference node which is automatically added when you create a loop.

One marker node is created on each bundle of the loop (where bundle is a set of connected bundles with no take-outs) unless there is already a reference node (not insulation) on the bundle.
It can be used as a through / not through node to define the path of wire or insulation.
A marker node is created even if there are already reference nodes on the loop bundle.
Marker nodes cannot be created manually.
If the marker node is not used, the wire / insulation will always follow the shortest path.
A marker node behaves like any other reference node where components can be attached (that is, there can be activity at this node)

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Bundle Configuration