Each Buchla 200e module type has a module ID that lets the preset manager and internal bus address multiple identical modules independently

When multiple modules of the same type coexist (e.g., four 261e oscillators), the preset manager and internal MIDI bus need to distinguish them. DIP switches on the back of each module set a module ID (A, B, C, or D). The ID determines which MIDI bus messages a module listens to, and allows memory cards to back up each module’s parameters separately. Modules without IDs (those where only one instance is expected) do not use this facility. Conflicting IDs are not catastrophic for live use but prevent independent memory card backup.

Examples

Set oscillator #1 to ID A, #2 to B — the 225e then routes bus A’s pitch to oscillator A, bus B’s pitch to oscillator B, enabling four-voice polyphony without patching.

Assessment

A system has two 261e complex oscillators and one 292e. Explain how to configure module IDs so each oscillator receives independent pitch information from the 225e internal bus.