Aiphone NHX-30G 30-Call Add-On Selector
The Aiphone NHX-30G is a 30-call add-on selector designed to expand the capacity of the NHX-50M 50-call audio master station. This modular expansion card allows integrators to scale institutional intercom deployments from 50 to 80 total calls without replacing the core master station or rewiring existing infrastructure. The direct-connect architecture and plug-in design make it ideal for facilities planning phased capacity growth as operational needs expand.
Key Features
- 30 Additional Calls: Direct expansion of NHX-50M master station. Scales the system from 50 to 80 total calls in a single addition.
- Direct-Connect Installation: Supplied connectors eliminate custom wiring. Installs via standard cable bundling to NHX-50M without configuration changes.
- Modular Architecture: Expansion is additive—no rip-and-replace of existing master station or central control infrastructure required.
- NHR-30K PC Board Required: Requires NHR-30K 30-call add-on PC board installed in NHX-80X central control unit to manage expanded call capacity.
- UL Listed: UL-certified for institutional and commercial life-safety applications, including healthcare, hospitality, and multi-tenant residential.
- 2-Year Manufacturer Warranty: Factory warranty covers defects and hardware failure under normal operation.
- Lightweight Design: 0.5 lb module—minimal footprint and cable load. Manufactured in Japan with proven reliability in high-call-volume environments.
The NHX-30G is built for institutional deployments where bedside stations, nurse-call systems, duty stations, and corridor light fixtures need coordinated audio coverage across multiple floors or wings. By adding capacity incrementally, facility managers avoid the cost and downtime of a complete system replacement while preserving existing endpoint configurations and training investment.
Integration is straightforward: the module connects directly to the NHX-50M master station using the supplied connectors, and the NHR-30K PC board upgrade to the NHX-80X central control unit manages the expanded call routing. This two-component upgrade (selector module + PC board) keeps the expansion simple and predictable. No software updates, no re-commissioning of existing calls—just plug-and-play hardware addition.
Deployment scenarios include healthcare facility expansions, hotel properties scaling guest-assistance audio networks, and multi-unit residential buildings adding community-space coverage. The modular design supports phased rollout: install the selector and PC board, test on a subset of new endpoints, then migrate additional stations without service interruption to existing users.
The NHX-30G is sourced factory-new with full manufacturer warranty. It carries UL certification for institutional life-safety use and complies with North American fire and safety codes. For facility managers planning 3–5-year growth in call capacity, this expansion path is both cost-effective and operationally lower-risk than single-phase large-system replacement.
Marty AllisonPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
We've deployed the Aiphone NHX-30G across healthcare networks, hospitality properties, and large residential complexes where call capacity was undersized at initial installation or where phased operational growth demanded incremental expansion without full system replacement. The appeal is straightforward: Aiphone's modular approach lets you add 30 calls to a 50-call master station at a fraction of the cost and commissioning effort of a new 80-call master station. What differentiates this expansion card is the plug-and-play electrical architecture—supplied connectors mean no custom harness fabrication, and the NHX-50M doesn't need to come offline during installation. You route the cable, install the NHR-30K PC board in the NHX-80X central unit, and existing bedside and duty stations continue operating without interruption. The trade-off: you're locked into Aiphone's ecosystem and the NHX-80X central unit. If your facility later grows beyond 80 calls, you'll need to migrate to a larger master station anyway. But for a 10–15-year facility lifespan with modest growth, this expansion module is the right economics.
Technical Highlights:
- 30-Call Expansion Module: Increases master station capacity from 50 to 80 calls in one addition. Sufficient for typical floor expansions or additional zones without architectural redesign of the call tree.
- Direct-Connect Connectors: Supplied connectors mean integrators don't engineer custom wiring harnesses or deal with connector mismatches. Installation is cable routing + power, not reconfiguration.
- NHR-30K PC Board Pairing: The expansion requires the NHR-30K 30-call add-on board in the NHX-80X central unit. This is the only software/firmware component—all call logic and routing is hardware-handled by the PC board, no licensing or per-station fees.
- UL Certification: Meets institutional life-safety codes for healthcare, hospitality, and multi-tenant residential. No additional approval or variance documentation required.
- Modular Scaling Path: The NHX-30G is the only expansion option for the NHX-50M—after 80 calls, you transition to a larger master (NHX-100M or custom), but the 50-call master hardware remains useful as a secondary or zone-specific controller.
Deployment Considerations:
- The NHR-30K PC board is a separate line item and must be ordered and installed in the NHX-80X central unit. Confirm you have access to the central unit before ordering the selector module—some facilities keep it in locked closets or equipment rooms, requiring coordination with facilities staff.
- Installation assumes the NHX-50M master station is already operational and the cable route to the central unit is established. Run the selector expansion cable in the same conduit or path as existing cables to avoid cross-talk or EMI issues.
- Endpoint registration (bedside stations, call buttons, light fixtures) does not change with the expansion—existing calls remain active and configured. New call stations added post-expansion are commissioned through the central unit only, not through the selector module.
- If your facility is planning growth beyond 80 calls within 3–5 years, consider the economics of the NHX-30G versus a larger-capacity master station from the start. Expansion modules are cost-effective for single additions; multiple expansions may favor a larger master.
- The supplied connectors are Aiphone proprietary. Keep spares on hand—a damaged connector on either the master or central unit can disable the entire expanded system until replaced.
The NHX-30G is the right choice for facility teams with mature Aiphone installations that need predictable, low-disruption capacity growth without replacing core infrastructure. If you're planning a multi-call expansion or currently running an NHX-50M at or near capacity, explore the selector module path before considering a wholesale system upgrade. For deeper integration guidance and compatibility questions, consult the Aiphone catalog.
