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

Usage Example - Refining an Inline Connector After Wiring Synthesis

The following usage example demonstrates how to use connector refinement and signal mapping after 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 the Sedan Hatchback Capital Systems Integrator design of an Automotive Generative project, you refine the inline pair ILC4A / ILC4B that connect the instrument panel IP (blue color) and passenger door DOOR-RF (green color) harnesses.

Figure 69: Inline Pair

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 A-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 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.

Prerequisites

Normally, you would need to have added the harnesses and the inline pair to the design. This has already been done here because we are using the starter data.

Procedure

Run Composite Wiring Synthesis to synthesize the wiring in the vehicle:Press Space Bar and enter Synthesis; the Wiring Synthesis dialog box displays. Select Full Synthesis and click Go; a progress bar displays. When synthesis is complete, click Close.
View the signal map for the inline pair ILC4A / ILC4B:In the Design Browser (Design tab), right-click the ILC4A harness and choose Signal Map; the Signal Map Dialog Box for Inline displays. Figure 70: Signal Map for ILC4A and ILC4B The Connectors tab indicates that one connector ILC4A is mapped to one connector ILC4B and they both have 26 cavities. The system has added the Wire Info tab to the top of the dialog box during wiring synthesis and lists the details of all the wires that you have mapped to the inline pair. The Signal Mappings tab indicates that signals and wires are mapped to some of those 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). Figure 71: Cavity Matings for Inline Pair ILC4A and ILC4B
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 72: New Connector Mating Row for Inline Pair 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 No. of Cavity Count cells for ILC4A_1, and ILC4B_1, specify that they each have 2 cavities.The Cavity Matings tab indicates that: 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 73: Cavity Matings for Inline Pair

The Signal Mappings tab displays rows for the new cavity matings and indicates that no signals are currently mapped to the cavities of the new connectors. Figure 74: Signal Mappings for Inline Pair Note Note that if you select one of the connector mating rows in the top 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 Connectors tab selected, click the Show Fanout () button at the top right corner of the Connectors tab to view the fanout diagram for the connectors ILC4A, ILC4B, ILC4A_1 and ILC4B_1.Figure 75: Fanout for Inline Pair 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 directly at the end of the DOOR-RF harness and ILC4B and ILC4B_1 would be directly at the end of the IP 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 similar to this: Figure 76: Updated Fanout for Inline Pair

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 12 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. Note You can identify that the signals 2N-SPKR-RT-1 and 2N-SPKR-RT-2 are the signals for the Audio-High option by looking at the Wire Info tab. Find where Audio-High displays in the Option Expression column and check the signals in the Signal column for those rows.

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 2)

To do this: In the Signal Mappings table, unmap 2N-SPKR-RT-1 from ILC4A cavity 2 and ILC4B cavity 2 by clicking on the Signal column cell for ILC4A cavity 2 and selecting the blank option at the top of the drop-down list.Figure 77: Unmapping 2N-SPKR-RT-1 The Signal column cells in that mapping row become blank and a new row is added to the top of the Wire Info tab. This new row contains the unmapped 2N-SPKR-RT-1 signal and no Connector or Cavity values. Figure 78: Unmapped 2N-SPKR-RT-1 in New Row

In the Connectors tab, click the ILC4A_1 to ILC4B_1 mating; the Signal Mappings table displays the unmapped signal row and the two mapping rows for the ILC4A_1 and ILC4B_1 connectors. In the Signal Mappings table, map the 2N-SPKR-RT-1 signal to ILC4A_1 cavity 1 (and therefore also to ILC4B_1 cavity 1) by clicking on the Signal column cell for ILC4A_1 cavity 1 and selecting 2N-SPKR-RT-1 from the drop-down list; the unmapped signal row disappears from the Wire Info tab.Figure 79: Mapping 2N-SPKR-RT-1 to ILC4A_1 Cavity 1

Repeat steps a to c for signal 2N-SPKR-RT-2, unmapping it from ILC_4A cavity 3 / ILC4B cavity 3 and mapping it to ILC4A_1 cavity 2 (and therefore also to ILC4B_1 cavity 2).

Parent Topic:

Usage Examples for Connector Refinement and Signal Mapping