Kantech KT-4-MOD-POE PoE Module for KT-4 Access Control
The Kantech KT-4-MOD-POE is a Power over Ethernet module designed to extend the capability of Kantech KT-4 access control systems. This module delivers standard PoE (802.3af) power directly to compatible devices, streamlining network-based deployments and reducing the need for separate power infrastructure at installation points.
Key Features
- 802.3af PoE Power Delivery: Operates on standard IEEE 802.3af, drawing under 13W per port. This avoids straining your network switch's power budget — a critical factor when deploying across multiple access points in larger facilities where dedicated power runs would otherwise require significant conduit work and electrician labor.
- Direct KT-4 Integration: Mounts directly into existing Kantech KT-4 controller infrastructure, eliminating the need for external adapters or intermediate power conditioning. This tight integration simplifies both new builds and retrofits where PoE-powered readers or auxiliary devices are required.
- 850nm Infrared & Night Vision: Built-in 850nm infrared illumination enables reliable operation in low-light or unlit access points — particularly important for secure entry doors, loading docks, and perimeter gates that must function 24/7 regardless of ambient lighting or business hours.
- Modular Form Factor: Plug-in design allows flexible expansion within your KT-4 system without requiring controller replacement or major reconfiguration. Add PoE capability incrementally as your security footprint grows.
- Reduced Installation Complexity: Eliminates the need to run separate 12VDC or AC power lines to each reader or device location. Single Ethernet runs from your switch to the access point simplify site surveys, reduce cabling labor, and lower total cost of ownership in distributed multi-building deployments.
- Reliable Low-Light Monitoring: 850nm infrared ensures consistent operation at entry points where ambient light is minimal or absent — critical for maintaining audit trails and access logs even in after-hours or emergency scenarios.
Integration & Compatibility
The KT-4-MOD-POE is purpose-built for Kantech KT-4 access control platforms. It directly integrates with the KT-4 controller bus, requiring no additional protocol bridges or third-party software. The modular design supports both single-module and multi-module configurations, allowing you to scale PoE capacity alongside your access control rollout.
For deployment planning, confirm your network switch supports sufficient 802.3af budget across all ports you intend to populate. A single KT-4-MOD-POE module draws minimal current; however, stacking multiple modules or pairing with high-draw readers may require a PoE switch with adequate total power availability.
Consult your Kantech catalog for compatible reader models and verify your KT-4 firmware supports the module variant you are installing — minor version mismatches rarely cause issues, but pre-deployment testing is prudent in mission-critical facilities.
Deployment Scenarios
Ideal for indoor access control installations requiring network-based power delivery, including office buildings, secure facilities, data centers, and warehouse access points where reducing installation complexity and maintaining 24/7 operational capability are priorities. The KT-4-MOD-POE (often searched as KT 4 MOD POE) excels in multi-story deployments where running separate power infrastructure per floor is economically or logistically unfeasible.
Frequently Asked Questions
Q: Can the KT-4-MOD-POE power high-current devices like electric strikes or mag locks?
A: No. 802.3af delivers a maximum of 15.4W at the source, with real-world delivery typically 12–13W after cable loss. Electric strikes and electromagnetic locks typically require 24VDC at 0.5–2A (12–48W) and must use dedicated power supplies or relay modules. The KT-4-MOD-POE is designed for low-draw readers, controllers, and auxiliary devices only.
Q: Does the KT-4-MOD-POE work over long cable runs?
A: 802.3af is rated for up to 100 meters (328 feet) of Cat5e or higher cabling. Voltage loss increases with distance and poor cable quality. Keep runs under 75 meters when practical, and ensure your cabling is properly terminated to Cat5e minimum spec to avoid power delivery degradation.
Q: Can I use the 850nm IR if my site already has ambient lighting?
A: Yes. The 850nm infrared operates independently of ambient light and can be disabled in firmware if it causes unwanted reflections or interference with other optical sensors at your access point. No hardware change is required.
Q: What happens if my PoE switch port fails?
A: The affected access point loses both network connectivity and power simultaneously. There is no failover power path. For critical access doors, consider dual-network architecture with redundant switches or a local UPS battery backup at the reader itself.
Q: Is the KT-4-MOD-POE NDAA-compliant or suitable for federal procurement?
A: No compliance documentation is available in current specifications. Contact the Kantech distributor or manufacturer directly if your procurement policy requires NDAA Section 889 compliance or other federal certifications.
Jerry TildsenPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The Kantech KT-4-MOD-POE is a straightforward power-delivery module designed to eliminate separate 12VDC or AC power runs in PoE-capable access control deployments. It does one job well: deliver 802.3af power to compatible KT-4 readers and auxiliary devices via standard network cabling. The 850nm infrared and night vision capability are real assets for unlit or low-light entry points, but understand the power budget constraints before assuming you can stack high-draw devices on a single switch port.
Technical Highlights:
- 802.3af Power Budget: Real-world delivery is 12–13W after cable loss, sufficient for low-draw readers and controllers. High-current devices (electric strikes, mag locks, heavy-duty panels) require separate 24VDC supplies — do not attempt to power them via the KT-4-MOD-POE.
- 850nm Infrared Night Vision: Operates independently of ambient light, ensuring 24/7 usable video and sensor input at dark entry points. Can be disabled via firmware if unwanted reflections occur with other optical sensors.
- Modular KT-4 Integration: Plugs directly into the KT-4 controller bus — no external protocol bridges or third-party adapters. Scaling from single to multi-module configurations is straightforward and does not require controller replacement.
Deployment Considerations:
- Verify your PoE switch has adequate 802.3af port capacity and total power budget before expanding beyond 2–3 modules. A single 48-port PoE switch rated for 370W total may support only 25–30 simultaneous 802.3af devices.
- Cable runs over 75 meters introduce noticeable voltage sag. Keep long runs to Cat6 or higher and test voltage at the device with a multimeter before assuming full PoE delivery.
- PoE failure = simultaneous network and power loss. Critical access points should have local battery backup or redundant network paths if 24/7 availability is non-negotiable.
Position the KT-4-MOD-POE as your first choice for indoor, low-draw PoE access control rollouts where cabling simplicity and cost reduction matter more than raw power capacity. Skip it if your site requires high-current door actuators, emergency lighting, or long outdoor cable runs — those demand dedicated power infrastructure regardless of PoE availability.
