Aiphone GT-104HB 4-Module Surface Mount Enclosure
The Aiphone GT-104HB is a vandal-resistant hooded surface mount enclosure engineered for the GT Series modular entrance panel system. This accessory accommodates a single-row, four-module configuration (1HX4V layout), providing a weather-sealed outdoor mounting solution for multi-tenant intercom installations where panel security and environmental protection are non-negotiable.
Key Features
- Hooded Design: Protects mounted modules from direct rain, dust, and intentional physical damage without requiring a separate back box. The hood redirects weather away from the module face, extending component lifespan in exposed outdoor environments.
- Vandal-Resistant Construction: Built to withstand deliberate impact and tampering. This matters in shared-access buildings, parking structures, and multi-unit properties where modules face frequent contact and potential abuse.
- 4-Module Capacity (1HX4V Layout): Accommodates four modules in a single horizontal row, making it suitable for small apartment buildings, office entry points, or gated communities with up to four separate tenant call stations or mixed audio/video configurations.
- Exclusive GT-4F Compatibility: Works only with the GT-4F single-row frame—no GT-4B back box required. This simplifies the bill of materials and reduces installation depth at the wall.
- Module Flexibility: Supports audio modules (GT-1A, GT-1D, GT-DB), video modules (GT-1C7, GT-1C7W, GT-1M3, GT-VB), and mixed configurations. You can deploy different module types within the same enclosure to match tenant needs—some units may require video intercom while others need audio-only.
- GT Series Distributed Architecture: Integrates into Aiphone's modular intercom ecosystem, supporting up to 25 tenants per trunk and 125 total tenant connections across a system. Scales without requiring a central control unit at each entrance.
Integration and Compatibility
The GT-104HB is designed exclusively for Aiphone GT Series modular intercom installations. Compatible modules include:
- GT-1A (audio only)
- GT-1D (audio handset)
- GT-1C7 (7-inch video display)
- GT-1C7W (audio/video with mobile app capability)
- GT-1M3 (3.5-inch compact video)
- GT-DB and GT-VB audio/video modules
The enclosure operates within the GT Series distributed architecture, allowing installers to configure entry panels without dedicated trunk lines. This reduces cabling complexity for multi-unit residential or commercial properties.
Deployment Context
Use the GT-104HB when you need to mount a four-module entrance panel on an exterior wall or gate and weather/vandalism protection is mandatory. The hooded design is particularly valuable in high-traffic areas, coastal environments where salt spray accelerates corrosion, or properties with high humidity. Surface mounting avoids the need for in-wall installation, reducing construction time and cost.
When to Choose a Different Model
If your installation requires more than four modules in a single enclosure, the GT Series offers additional frame sizes within the same family. For installations requiring flush-mount or recessed mounting rather than surface mounting, evaluate alternative frame configurations compatible with the back box option.
Frequently Asked Questions
Q: Does the GT-104HB require a back box for installation?
A: No. The GT-104HB is engineered as a standalone surface mount enclosure and does not require the GT-4B back box. It mounts directly to an exterior wall or post using the included fastening hardware.
Q: Can I mix audio and video modules in the same GT-104HB enclosure?
A: Yes. The GT-104HB accommodates any combination of compatible GT Series modules—audio (GT-1A, GT-1D, GT-DB) and video (GT-1C7, GT-1C7W, GT-1M3, GT-VB)—within the four-module limit. Each module operates independently on the distributed trunk.
Q: What weather protection does the hooded design provide?
A: The hood protects mounted modules from direct rain, wind-driven moisture, dust, and UV exposure. It does not make the enclosure submersible—install it on covered soffits or recessed entries where standing water is not a risk.
Q: Is the GT-104HB suitable for coastal or high-humidity environments?
A: The vandal-resistant hooded construction provides meaningful protection from weather and salt spray exposure. For extreme corrosion risk, verify that all modules and fasteners meet the environmental rating required for your specific site.
Q: How many total tenant connections can a system support?
A: A single GT-104HB can host up to four modules. Within the distributed GT Series architecture, the system supports up to 25 tenants per trunk line and 125 total tenant connections across multiple entrance points.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The GT-104HB is a purpose-built accessory for security integrators deploying Aiphone's modular intercom architecture in multi-unit residential and commercial environments. The hooded design eliminates reliance on a separate back box, reducing both material cost and installation labor—especially valuable on retrofit projects where wall depth is constrained or exterior aesthetics matter.
Technical Highlights:
- Vandal-Resistant Hood: Weather-sealed protection without a back box requirement means faster installation and lower system cost per entrance point, typically 15–20% reduction in panel enclosure BOM versus back-box installations.
- 4-Module 1HX4V Layout: Compact single-row form factor fits standard wall-mount clearances and post-mount spacing. Larger multi-family projects can deploy multiple GT-104HB units side-by-side at multiple entrances without physical conflicts.
- Distributed Architecture Support: The GT Series supports 25 tenants per trunk and 125 total connections—meaning a single entrance enclosure doesn't bottleneck system growth. Adding a second or third entrance point simply adds another GT-104HB without requiring additional control hardware.
Deployment Considerations:
- The hooded design protects from rain and dust but is not submersible. Install on covered soffits, recessed entries, or under a canopy—not in direct exposure to standing water or horizontal spray.
- Module compatibility is strict to the GT Series family. Verify that all modules you plan to deploy (audio, video, mixed) are GT-series certified before specifying; third-party or legacy intercom modules will not work.
- Surface mounting requires solid substrate (masonry, metal post, or composite panel). Verify wall construction and anchor specifications before installation—the hooded design adds wind load and weather exposure that demands proper fastening.
The GT-104HB is the right choice for small-to-mid-size multi-tenant properties, gated communities, and office complexes where a vandal-resistant, weather-sealed four-module entrance panel must deploy without construction complexity or system cost inflation. It's not the answer for single-module installations (use a simpler frame) or for large campuses requiring eight or more modules per entrance.
