Connector Refinement and Signal Mapping > Usage Examples for Connector Refinement and Signal Mapping

Usage Example - Refining an Inline Connector Before Wiring Synthesis

The following usage example demonstrates how to use connector refinement and signal mapping before running Composite Wiring Synthesis to model an inline pair where you want to have two connectors on each side.

You might want to do this because:

There are a large number of signals going between the harnesses and a single, very large connector is unavailable or impractical.
Some of the signals are only required on a small number of vehicles. By moving these into a separate connector, you can save the cost of the connector for the majority of the vehicles.

In a Sedan Hatchback Capital Systems Integrator design of an Automotive Generative project, you refine the inline pair ILC4B/ ILC4A that connect the instrument panel IP (blue color) and door DOOR-RF (green color) harnesses.

Figure 59: Inline Pair ILC4A and ILC4B

You assume that the majority of vehicles are sold with either the option Audio-Base (2 Speaker - Base Audio System) or Audio-Mid (4 Speaker - Premium Audio System). A smaller percentage of vehicles are sold with the option Audio-High (6 Speaker - Premium Audio System). You therefore decide to map the two additional Audio-High wires to their own connectors on each side of the inline pair. This allows you to use a 26 cavity connector most of the time and to add the extra 2 cavity connector only when the Audio-High option is selected.

Note

The screenshots and video in this usage example were created in a release before various changes were made to the Signal Map dialog box.

Those changes have no impact on the validity of this usage example.

You can play a video of the steps in this usage example.

Prerequisites

Normally, you would need to have added the harnesses and the inline pair to the design. This has already been done in this example.

Procedure

In the Design Browser (Design tab), right-click the ILC4B inline connector and choose Signal Map; the Signal Map Dialog Box for Inline displays.Figure 60: Signal Map ILC4A and ILC4B The Connectors tab indicates that one connector ILC4A is mapped to one connector ILC4B and both have 26 cavities. The Cavity Matings tab displays 26 rows in which the ILC4A cavities (numbered 1 to 26) are mated with the equivalent cavities on ILC4B (that is, ILC4A cavity 1 is mated with ILC4B cavity 1, and so on). The Signal Mappings tab displays 26 rows which display the same matings as on the Cavity Matings tab as well as the fact that no signals are currently mapped to any of the mated cavities.
Add a 2-cavity connector to each side of the inline pair:In the Connectors tab, click the cell in the mating row for the ILC4A and ILC4B connectors and click Add connector mapping ().A new connector mating row is added: Figure 61: New Connector Mating Row There are now two connectors (ILC4A and ILC4A_1) on the IP side of the inline pair and two connectors (ILC4B and ILC4B_1) on the DOOR-RF side. ILC4A is mated with ILC4B. ILC4A_1 is mated with ILC4B_1.

In the Cavity Count cells for ILC4A_1, and ILC4B_1, change 26 to 2 to specify that they each have 2 cavities, and click the top of the table.The Cavity Matings tab indicates that: The ILC4A connector cavities are mated to the equivalent ILC4B connector cavities (that is, ILC4A cavity 1 to ILC4B cavity 1, and so on).

The ILC4A_1 connector cavities are mated to the equivalent ILC4B_1 connector cavities (that is, ILC4A_1 cavity 1 to ILC4B_1 cavity 1, and so on). Figure 62: Cavity Matings between ILC4A, ILC4B, ILC4A_1 and ILC4B_1

The Signal Mappings tab displays rows for the new cavity matings and still shows that no signals are currently mapped to any of the cavities. Figure 63: Signal Mappings between ILC4A, ILC4B, ILC4A_1 and ILC4B_1 Note Note that if you select one of the connector mating rows in the Connectors tab, the Signal Mappings and Cavity Matings tabs display only details related to that specific connector mating. You can click the Clear Selection button to display the details for all connector matings.

With one of the rows in the Connector Mating table selected, click the Show Fanout () button at the top right corner of the Connector Mating table to view the fanout diagram for the connectors ILC4A, ILC4B, ILC4A_1 and ILC4B_1.Figure 64: Fanout for ILC4A, ILC4B, ILC4A_1 and ILC4B_1 The fanout is used to specify whether any add-on bundle length is required for a wire to pass from the end of the harness bundle to the cavities of the connectors. The length value uses the standard unit of measurement applied to harnesses by your company. At the moment, this indicates no add-on is required for any of the connectors which means that both ILC4A and ILC4A_1 would be located at the end of the IP harness and ILC4B and ILC4B_1 would be located at the end of the DOOR-RF harness. You specify that: The wires for the Audio-High option need an add-on of 10 to reach the cavities of the 2-cavity ILC4A_1 and ILC4B_1 connectors.

The wires for the Audio-Base and Audio-Mid options need an add-on of 50 to reach the cavities of the 26-cavity ILC4A and ILC4B connectors (this could be because it clips onto the harness in a different way).

To do this: Click ILC4A_1 in the top left window; the bundle add-on graphic for it is highlighted in red. In the Length field on the left, enter 10. You may need to click outside of the field several times before the length is updated on the fanout diagram Click ILC4B_1 in the top right window; the bundle add-on graphic for it is highlighted in red. In the Length field on the right, enter 10. You may need to click outside of the field several times before the length is updated on the fanout diagram. Click ILC4A in the top left window; the bundle add-on graphic for it is highlighted in red. In the Length field on the left, enter 50. You may need to click outside of the field several times before the length is updated on the fanout diagram. Click ILC4B in the top right window; the bundle add-on graphic for it is highlighted in red. In the Length field on the right, enter 50. You may need to click outside of the field several times before the length is updated on the fanout diagram.The dialog box should look like this: Figure 65: Updated Fanout for ILC4A, ILC4B, ILC4A_1 and ILC4B_1

Click Close to exit the dialog box.

Specify component library parts for the ILC4A_1 and ILC4B_1 connectors:Click in the Part cell for the ILC4A_1 connector in the Connectors tab, and click the ellipsis (...).The Part Selection dialog box displays.

Click Search parts using criteria specified (); the Parts table lists all the available connectors with 2 or more cavities. Select C-61276 and click Insert; the Part Number cell for ILC4A_1 updates. Repeat steps a to c for the ILC4B_1 connector, selecting C-61277. Note You can view a faceview symbol for each of the connectors by clicking the Show Faceviews () button below the Signal Mappings tab. When you are editing a signal map for an inline connector, a panel displays for each side of the inline pair. You select the connector for which you want to display the faceview in the Connector field in a panel. See Viewing Connector Faceview Symbols in Signal Maps for more information.

Specify that you want the signals for the Audio-High option to go to the ILC4A_1 and ILC4B_1 cavities.The signals 2N-SPKR-RT-1 and 2N-SPKR-RT-2 are the signals for that option. You map them as follows: Signal 2N-SPKR-RT-1 to ILC4A_1 cavity 1 (and therefore also to ILC4B_1 cavity 1)

Signal 2N-SPKR-RT-2 to ILC4A_1 cavity 2 (and therefore also to ILC4B_1 cavity 1)

To do this: On the Signal Mappings tab, click the Preferred Signal cell for the ILC4A_1 cavity 1 to ILC4B_1 cavity 1 mapping and select 2N-SPKR-RT-1.Figure 66: Preferred Signal for ILC4A_1 Cavity 1 to ILC4B_1 Cavity 1

Click the Preferred Signal cell for the ILC4A_1 cavity 2 to ILC4B_1 cavity 2 mapping and select 2N-SPKR-RT-2. Click OK to exit the dialog box.Note See Preferred Signal Behavior during Wiring Synthesis for more detail on how wiring synthesis handles preferred signals.

Run Composite Wiring Synthesis to see that it maps the 2N-SPKR-RT-1 and 2N-SPKR-RT-2 signals to those mated cavities and creates wires accordingly:Press Space Bar and enter Synthesis; the Wiring Synthesis Dialog Box displays. Click Full Synthesis (the default selection) and click Go; wiring is synthesized. In the Design Browser (Design tab), right-click the ILC4A inline and choose Signal Map; the Signal Map Dialog Box for Inline displays.The Signal Mappings tab shows that the 2N-SPKR-RT-1 and 2N-SPKR-RT-2 signals map to those cavities and so do the wires that carry those signals. Figure 67: 2N-SPKR-RT-1 and 2N-SPKR-RT-2 Mapped to Cavities The system adds a Wire Info tab to the top of the dialog box and lists the details of all the wires that map to the inline pair. Figure 68: Wire Info Tab for Mapped Inline Pair

Parent Topic:

Usage Examples for Connector Refinement and Signal Mapping