The Transceiver Model of Consciousness addresses the problem of other minds and cos-mic solipsism through an explicit commitment: reality includes a fundamental plurality of transcendental minds, each genuinely other, each capable of freely willed self-limitation into a shared arena of finitude. This paper strengthens the plurality thesis by grounding it in quantum-theoretic constraints: the conservation of quantum information (no-cloning/no-deletion theorems), entanglement monogamy, and the Heisenberg-style trade-off between quantum mem-ory and computation. These constraints render consciousness topologically protected against reduction to unity. The brain functions not as a generator of consciousness ex nihilo but as an embodied interface—a transceiver that couples to non-EPR vacuum entanglement structures (Reznik 2003). Following Levinas, ethics rather than ontology constitutes First Philosophy: if alterity is irreducible, then non-annexing regard for the Other is the foundational moral posture. The paper separates established science, testable interface hypotheses, metaphysical interpretation, and normative ethics to prevent category conflation.