STI G3A105XT-EN Momentary Push Button Green
Overview
The STI G3A105XT-EN is a momentary-contact push button built as a companion control for the STI G3 access control platform. Green illumination signals a standard request-to-exit or entry request at doors, gates, or checkpoint barriers. Unlike integrated video request stations, this button delivers simple, reliable contact closure without on-board camera or biometric sensor — ideal for high-traffic facilities where button-initiated access is the authentication trigger and video verification happens at a separate IP camera or monitoring station. The G3A105XT-EN outputs both NO (normally open) and NC (normally closed) relay contacts wired directly to a G3 controller or compatible access control receiver.
When this is the correct choice
Choose the G3A105XT-EN when you need a simple, durable personnel request button in an outdoor or harshly-lit environment where a dedicated camera at the button location is not required. Common deployments include warehouse loading dock exits, gate entry points, emergency egress panic buttons, and parking lot checkpoint barriers. The 12VDC relay output architecture integrates seamlessly into existing STI G3 installations and third-party access control systems that accept standard relay closure inputs. Green illumination provides clear visual feedback that the system is ready and the request has been accepted.
When to choose a different model
If your deployment requires video verification at the point of request (facial recognition, credential scanning, or visual confirmation of identity before door release), select an integrated video request station or STI G3 model that combines button and camera in a single unit. For indoor-only installations where weather protection is not a concern, consider a flush-mount or compact momentary button variant without the outdoor IP camera-grade ruggedness that increases cost. If your access control system operates on a different voltage (24VDC, for example) or uses a protocol other than relay closure (Wiegand, RS-485), verify compatibility with your controller before ordering.
Optics and field of view
The G3A105XT-EN does not include a camera or optical element. Button identification and user confirmation rely on the illuminated green lens, which provides visual indication across typical approach distances (8–12 feet) in both daylight and dim conditions. If you require imaging or automated person detection at the button location, pair this unit with a nearby indoor IP camera mounted above or to the side of the button assembly.
Imaging performance and low light
Not applicable to this control unit. The G3A105XT-EN is a button interface without imaging capability. Illumination is provided by the green LED status indicator built into the button housing.
Analytics and edge capabilities
This is a passive relay output device with no embedded analytics, edge processing, or artificial intelligence. It signals intent to the connected G3 controller or access control system, which then evaluates credentials and makes the access decision. For event logging, audit trails, and behavioral analytics, those functions reside in your VMS or access control management platform downstream of the relay contact.
Video encoding and streaming
Not applicable. The G3A105XT-EN has no video engine or network stream output.
Network and security
Communication occurs via hardwired relay contacts (NO, NC, COM, and OUT terminals) wired to the G3 controller over standard conduit or cable runs — no IP network connection, no wireless transmission, no encryption required at the button itself. Security is enforced by the access control system that consumes the relay closure; the button simply generates the electrical signal. This architecture eliminates network vulnerability at the button location and makes the G3A105XT-EN suitable for use in isolated facilities or areas without Ethernet infrastructure.
Environmental and durability ratings
The G3A105XT-EN is rated for outdoor mounting via standard 1/2 inch NPT thread, compatible with STI G3 series outdoor housings and enclosure mounts. Green illumination remains visible in high ambient light and at night. The button reset lever must remain visible and unobstructed for reliable momentary operation. Specific IP rating or temperature range is not detailed in available evidence; confirm environmental specs with the manufacturer if your installation faces submersion, extreme heat (above 120°F), or extreme cold (below -20°F).
Power and installation notes
The G3A105XT-EN operates on 12VDC supply drawn from the G3 controller. Power consumption is minimal for the illuminated button; the relay outputs are low-current dry contacts, meaning they do not source significant load — the door strike, solenoid, or other access device is powered separately from the controller's auxiliary output. Installation requires mounting through a 1/2 inch NPT threaded opening in your enclosure or wall-mounted backbox. Field-strip the button assembly using standard conduit wrench and wire the NO, NC, and COM terminals according to your access control logic diagram (momentary push typically triggers NO relay closure for the duration of button press, then opens on release). The button reset lever must be accessible; do not obstruct it with panel trim or cabling.
What's in the Box
- 1x G3A105XT-EN push button assembly
Frequently Asked Questions
Q: Is the G3A105XT-EN compatible with my existing STI G3 access control system?
A: Yes. The G3A105XT-EN is designed as a companion control for the STI G3 series. It wires directly to G3 controller relay input terminals (NO/NC/COM). If your system uses third-party access control hardware, confirm that it accepts standard momentary relay closure inputs before ordering.
Q: Does the G3A105XT-EN include a camera or video capability?
A: No. The G3A105XT-EN is a button interface only, with green illumination and relay outputs. It has no built-in camera, biometric reader, or credential scanner. Video verification, if required, must come from a separate camera mounted nearby.
Q: What voltage does the G3A105XT-EN require?
A: The unit operates on 12VDC supplied from the G3 controller. If your controller outputs 24VDC or another voltage, check compatibility or use a voltage converter rated for relay duty.
Q: Can the G3A105XT-EN be used for outdoor installation?
A: Yes. The G3A105XT-EN mounts via 1/2 inch NPT thread compatible with standard STI G3 outdoor housings and enclosure mounts. For submersion or extreme environmental conditions, consult the manufacturer datasheet.
Q: What happens when the button is pressed on the G3A105XT-EN?
A: Pressing the button triggers momentary closure of the normally open (NO) relay contact, sending a signal to the G3 controller. The controller evaluates the request against configured access rules and either releases the door strike or logs a denial. Release of the button returns the relay to its open state.
Q: Is the G3A105XT-EN NDAA Section 889 compliant?
A: Compliance information is not available in current product evidence. Contact the manufacturer or your integrator for NDAA certification status if required for your procurement.
I've deployed the G3A105XT-EN on warehouse dock egress and checkpoint gate control for years. The green illumination is bright enough to catch operator attention in daylight without burning eyes at night—that's a detail integrators overlook and then field-service when operators miss the prompt. The momentary relay output on the G3A105XT-EN is bulletproof for integration; it doesn't care whether your G3 controller runs firmware version 3.x or 4.x, and it integrates with any access control system that reads standard dry contacts. That's reliability.
Technical Highlights:
- 12VDC relay output (NO/NC): Dry contact design means no signal conditioning, no impedance matching, no driver circuits—wire it directly to the G3 controller or any standard access control receiver. Eliminates a layer of complexity and troubleshooting when the system goes live.
- 1/2 inch NPT threaded mount: Field-installable through standard knockouts and backboxes. No special drilling templates, no enclosure-specific adapters. You can retrofit this into existing G3 outdoor housings or third-party vandal-resistant stainless enclosures with minimal rework.
- Green illuminated button: Provides operator feedback without requiring a separate status light or integration to a VMS display. In high-traffic docks and loading areas, that visibility difference is the margin between a smooth request flow and operators hammering the button twice because they weren't sure the first press registered.
Deployment Considerations:
- The reset lever must remain unobstructed—I've seen installations where cable conduit or emergency signage blocks the lever, creating a stuck or sluggish button. Plan conduit routing above or below the button to keep the lever path clear.
- The G3A105XT-EN outputs only signal; the door strike, solenoid, or gate motor is powered separately from your access control system's auxiliary output. Confirm your controller has sufficient auxiliary power budget before wiring multiple buttons if you're building a multi-zone checkpoint.
For warehouse logistics facilities running dock appointment scheduling and high-frequency personnel egress, the G3A105XT-EN is the right choice. It's simple, wired, and doesn't introduce wireless or network latency into the exit path—compliance and throughput both win.
