The SPC-1 Interface Module provides a direct interface to the Oregon Micro/Pro-Dex VME-58-8S Controller. Differential receivers are used for connection to differential encoder outputs. A jumper option is provided for single board encoder outputs.

The SPC-2 Interface Module provides 3 front panel connectors for the connection of an external eight channel indexer/controller. Step and direction inputs are single ended and require 6mA sinking drivers.

The SPC-3 Interface Module provides 8 front panel connectors for the connection of an external eight channel indexer/controller. The SCP-3 provides differential receivers on step and direction inputs for all eight channels. Encoder outputs connected to the back panel of the SPR-9 are also brought to the front panel connectors.

The SPC-4 Interface Module provides 8 RJ-45 front panel connectors for the connection of an external eight channel indexer or controller. The SPC-4 facilitates system wiring through the use of standard cables.