Aiphone GT-202HB 4-Module Surface Mount Box
Overview
The Aiphone GT-202HB is a vandal-resistant surface mount enclosure purpose-built for the GT Series modular entrance panel system. It accommodates a 2-horizontal by 2-vertical (2x2) module configuration, enabling secure outdoor installation for multi-unit residential and commercial access control applications. The GT-202HB integrates seamlessly with Aiphone GT Series intercom platforms, supporting combinations of audio and video modules in a single unified mounting frame.
Key Features
- 2x2 Module Capacity: Holds up to four modules in a compact footprint — meaningful when you need multiple call stations or mixed audio/video in a tight space without running separate conduit runs for each tenant or entrance point.
- Vandal-Resistant Construction: Purpose-designed for outdoor and semi-exposed mounting where equipment faces weathering, tampering, or accidental impact — reduces replacement costs and support calls compared to consumer-grade boxes.
- GT Series Compatibility: Supports both GT-DB audio modules and GT-VB video modules in any combination within the 2x2 layout — lets you scale from audio-only to hybrid audio/video without swapping enclosures.
- Tenant Station Integration: Works directly with GT Series tenant stations including GT-1A, GT-1C7W, GT-1C7, GT-1D, GT-1M3, and guard stations such as GT-MKB-N — meaning the box mounts directly at the building entrance with no intermediate adapters.
- Signaling and Panic Support: Accommodates external signaling relays (GT-RY) and panic switches (GFK-PS N/C) for expanded system functionality — enables fire alarm integration, gate release, or emergency notification without external relay cabinets.
- Surface Mount Installation: Mounts directly to wall, post, or pilaster — no recessing required, reducing installation labor and material costs on retrofit projects or buildings where wall cavity access is limited.
Integration & Compatibility
The GT-202HB is a core component of the Aiphone GT Series modular platform. It supports any combination of GT-DB (audio) and GT-VB (video) call modules, allowing integrators to configure the exact feature set each building entrance requires. Compatible guard stations and tenant units include GT-1A, GT-1C7W, GT-1C7, GT-1D, GT-1M3, and GT-MKB-N. External control devices such as door-release relays (GT-RY) and panic buttons (GFK-PS N/C) integrate directly into the module slots, centralizing all entrance electronics into a single weatherproof enclosure. This modular design reduces field wiring complexity and simplifies future upgrades — if a tenant or entrance requirement changes, swap the module rather than replacing the entire box.
Deployment Considerations
The GT-202HB is sized for up to four modules in a 2x2 grid. If your entrance requires more than four call stations, you'll need multiple boxes or a larger GT Series enclosure. Surface mounting means the box is visible and exposed; verify that local codes or HOA guidelines permit exterior-mounted equipment at the planned location. The enclosure is designed for vandal resistance but not for submersion or continuous high-pressure water spray — position away from downspout discharge or irrigation lines. Because it's an accessory enclosure rather than a powered device, all power and signal wiring runs to the modules installed inside; plan for adequate conduit routing to the back of the box during rough-in.
Frequently Asked Questions
Q: Can I mount the GT-202HB vertically or horizontally?
A: The 2x2 module layout is fixed. Mounting orientation (vertical or horizontal box placement) depends on your entrance design and available wall space, but the internal module positions themselves remain in a 2x2 grid regardless of how you orient the box on the wall.
Q: Does the GT-202HB require external power?
A: The enclosure itself is passive — power is supplied by the modules installed inside (audio and video modules draw their power from the GT Series master station or power supply). The box provides mechanical protection and weatherproofing only.
Q: What's the maximum number of tenant units the GT-202HB can support?
A: The box itself holds four modules. Each module can address multiple tenants depending on the module type and master station configuration. Refer to your specific module documentation and master station manual for maximum call-station counts.
Q: Is the GT-202HB suitable for coastal or high-salt-spray environments?
A: The GT-202HB is vandal-resistant and weatherproof but is not explicitly rated for salt-spray or marine environments. If your site is in a coastal zone, consult Aiphone engineering or request material specifications to confirm compatibility with salt-air exposure.
Q: Can I combine GT-DB and GT-VB modules in the same GT-202HB box?
A: Yes — the GT-202HB supports any combination of audio and video modules in the 2x2 layout. You could install two audio modules and two video modules, or all audio, or all video, depending on your entrance requirements.
Q: What's included in the box when I receive the GT-202HB?
A: The GT-202HB is an enclosure only. Modules (GT-DB audio, GT-VB video), tenant stations, and master station equipment are ordered separately and installed inside the box during commissioning.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The GT-202HB is a straightforward but essential piece of the GT Series puzzle. Its 2x2 module capacity and vandal-resistant design make it the right choice for multi-tenant buildings, apartment complexes, and commercial entrances where you need a compact, weather-sealed enclosure that doesn't eat up wall space. The fact that it handles both audio and video modules — in any mix — means you're not locked into a one-feature-per-box design.
Technical Highlights:
- 2x2 Module Grid: Four module slots in a compact footprint reduce installation footprint compared to running individual call stations at separate locations.
- Vandal-Resistant Enclosure: Purpose-built for outdoor mounting, which means lower long-term replacement and repair costs versus consumer-grade boxes on busy commercial entrances.
- Mixed Module Support: Supports any combination of GT-DB audio and GT-VB video modules, so you're not forced to commit to all-audio or all-video upfront; scale features per entrance as budget and requirements allow.
Deployment Considerations:
- The GT-202HB itself is passive — all power comes from the modules and master station. Don't spec a separate 24VDC supply for the enclosure; you're only powering the call modules inside.
- Surface mounting means the box is visible and accessible. If your site has strict architectural guidelines or the entrance is in a high-traffic or vandalism-prone area, confirm that the visible equipment complies with local codes and your client's security policy.
- Conduit routing to the back of the box needs to be planned during rough-in; the enclosure doesn't have built-in cable entries for every possible wiring scenario, so coordinate with the electrician on the number and location of knockouts or drilled entry points.
Size the GT-202HB when you have between two and four call stations at a single entrance and want them all in one weatherproof box. For larger multi-entrance buildings, you'll deploy multiple GT-202HB boxes — one per entrance cluster — and tie them all back to a single master station. That modular approach is the whole point: scale the boxes to the entrance, not the entrance to the boxes.
