Connecting Shared Resources in the Pin Map

A shared resource is a device on the tester or DIB that is connected to an instrument or relay driver module and shared by multiple sites. To specify a connection between a shared resource and an instrument channel or relay driver module control line, use the following criteria to decide how to define a shared resource in the pin map.

  1. If the resource is a relay:
    1. If there is a single relay shared by all sites, define a system relay.
    2. If there are multiple relays in which each relay is associated with multiple sites, define a site relay.
  2. If the resource is not a relay:
    1. If the resource is shared by all sites and you do not need to burst patterns to the resource using an NI-Digital Pattern instrument, define a system pin.
    2. Otherwise, define a DUT pin.

Connecting a Shared Resource using System Pins and System Relays

For each system pin and system relay in the pin map, the Pin Map Editor displays a row in the Connections table. Complete the following steps in the Pin Map Editor to create a connection for a system pin or system relay that all sites share.

  1. Select Connections on the Pin Map tab.
  2. In the View Connections for drop-down menu, select All Pins and Relays.
  3. In the Connections table, select the instrument and channel or relay driver module and control line from the Instrument and Channel column cells of the system pin or system relay for which you want to create a connection.

Connecting a Shared Resource to One or More Sites using DUT Pins and Site Relays

For each DUT pin and site relay, the Pin Map Editor assumes there is one connection per site and displays a row for each site in the Connections table. Complete the following steps in the Pin Map Editor to create a connection for a DUT Pin or site relay that multiple sites share.

  1. Select Connections on the Pin Map tab.
  2. In the View Connections for drop-down menu, select All Pins and Relays.
  3. In the Connections table, select the instrument and channel or relay driver module and control line from the Instrument and Channel column cells for one of the rows associated with the DUT pin or site relay.
  4. Repeat step 3 for the remaining sites, using the same instrument channel or relay driver module control line for the sites that share the resource. The Pin Map Editor automatically combines the rows that use the same resource into a single row. Alternatively, you can enter a comma-separated list of site numbers in the Site column to specify which sites share the resource. When you save the pin map file, the Pin Map Editor automatically removes any duplicate site connections from the Connections table.