Engineering guides, written from the firmware
One deep-dive per AXON board plus topic guides on elevator access control, bus protocols and anti-cloning RFID. Pinouts, bus parameters, encryption model, failure modes, installation requirements — and what is shipping versus what is roadmap, stated openly.
Twelve boards, twelve guides
Each guide follows the same structure: an answer summary, what the board does, components, end-to-end operation, bus configuration, pinout, protections, installation, troubleshooting, comparison, roadmap and FAQ.
Masters
Decision-making controllers — cabin and building.
Axon Access CCU-32 — Cabin Control Unit for 32-Floor Elevator Access
The cabin-mounted master controller of the AXON elevator access stack: local-first credential validation, redundant communication, hardware-watchdog…
Read the guide · 19 minAxon Access ICM-GE — Infrastructure Master with Ethernet, GSM and RS-485 BUS
The master controller for non-cabin access points in commercial and residential buildings — doors, ramps, floors, garages. Hybrid Ethernet + GSM uplink,…
Read the guide · 17 minAxon Access ELM-GE — Elevator Master with Direct Controller Integration
The elevator master tier of the AXON platform. Ethernet and GSM uplinks for remote management, RS-485 BUS to readers, nodes and expansion modules locally,…
Read the guide · 18 minFloor nodes & readers
Credential capture and the per-floor bridge onto the encrypted bus.
Axon Access Node — Floor Node on the Encrypted CAN Bus
A compact STM32F072 floor module that reads Wiegand-26 cards, drives two relays, and talks to the AXON Master over CAN bus with AES-128 CTR encrypted…
Read the guide · 20 minAxon Access URX-Secure — Encrypted RFID Reader for Access Control
A unified DESFire/MIFARE RFID reader designed for migration from legacy Wiegand installations into a fully encrypted RS-485 access network — anti-clone…
Read the guide · 17 minAxon Access W2R-N — Wiegand to RS-485 Bus Converter Node
The migration bridge that brings legacy Wiegand 26/34 readers onto a modern, encrypted, addressable RS-485 BUS without ripping out wall plates or replacing…
Read the guide · 16 minAxon Access SBT-TRF — Smart Touch Button with RFID & Biometric Fingerprint
A next-generation smart access button that unifies a capacitive touch surface, RFID, and biometric fingerprint authentication in a single panel, with…
Read the guide · 18 minCommunication & retrofit
Uplinks and bridges for sites where cable is impractical or the elevator is old.
Axon Access ICM-LR — Long-Range LoRa Master for Distributed Access
The master for campuses, parking lots and fragmented sites where pulling cable between locations is impractical. LoRa link up to ~1 km line-of-sight, RS-485…
Read the guide · 15 minAxon Access PBC-Bridge — Push-Button & Legacy Signal Converter to AXON BUS
A converter module that bridges existing elevator push-button lines and legacy protocol signals into the AXON BUS, so a non-invasive retrofit can put a…
Read the guide · 19 minRelay & I/O
Outputs next to the load: locks, gates, barriers, signal channels.
Axon Access RBN-2 — Dual-Relay Bus Expansion Node
A compact RS-485 expansion module with two independent industrial relays. Designed to switch local loads next to the door, gate, or zone — not next to the…
Read the guide · 18 minAxon Access SC-E — Dual-Relay Add-on Expansion Module
A two-relay add-on for the AXON access control system. Each relay exposes NO and NC contacts, both can be commanded independently or together over the AXON…
Read the guide · 18 minAxon Access SSR-32 — 32-Channel Solid-State Relay Board
A high-density solid-state output expansion board for the AXON RS-485 BUS. Thirty-two channels with no mechanical contacts, fast switching, high cycle…
Read the guide · 17 minConcepts behind the boards
Read these first if you are evaluating AXON against alternatives or planning a riser, an entrance topology or a credential policy.
MIFARE DESFire EV3 vs MIFARE Classic — How to Choose Your RFID Card
An honest engineering comparison for building managers, integrators and IT decision-makers. No marketing, no scare tactics — the actual trade-off is threat…
ReadHow Elevator Access Control Works: Reader to Floor Relay
Step-by-step guide to how elevator access control works: DESFire EV3 card tap, encrypted RS-485 to the cabin controller, local decision, per-floor relay pulse.
ReadElevator Access Control System: Floor-Level RFID Permissions
How an elevator access control system limits each card to authorised floors — DESFire EV3 readers, the CCU-32 cabin master, offline decisions and anti-cloning.
ReadElevator RFID Reader Module for Cabin Access Integration
How an elevator RFID reader module fits into the cabin: DESFire EV3 card authentication, RS-485 to the CCU-32 cabin master, floor relays and installation notes.
ReadAccess Control for Multi-Entrance Buildings: Design Guide
How to run entrances, garage gates, ramps and elevator landings from one AXON master: zone modeling, CAN segmentation, DESFire EV3 cards and fail-closed nodes.
ReadRS-485 vs CAN vs Ethernet for Access Control: Which Bus Where
Why AXON uses RS-485 for readers and relays, CAN at 250 kbit/s for the floor-node riser and Ethernet only for the cloud uplink — and why one bus is not enough.
ReadAnti-Cloning RFID Access Control with DESFire EV3
How AXON stops cloned RFID cards — DESFire EV3 AES-128 mutual authentication, per-card diversified keys, encrypted RS-485 and CAN links, and offline decisions.
ReadPreventing RFID Cloning in Access Systems: Practical Controls
Cut RFID card cloning risk in buildings and elevators: DESFire EV3 mutual authentication, encrypted reader and CAN buses, master-side policy and card lifecycle.
ReadRFID Access Control System for Buildings and Elevators
How an RFID access control system secures doors, entrances, garages and elevator floors — DESFire EV3 cards, RS-485 readers, CAN backbone, offline decisions.
ReadSmart Building Access Control with Centralized AXON Management
How AXON smart building access control works — offline decisions on the master, encrypted RS-485 readers, CAN floor nodes and one MQTT audit stream.
ReadAccess Control in Kosovo for Buildings, Elevators and Garages
How AXON access control works in Kosovo: DESFire EV3 readers, cabin and building masters that decide offline, and bus modules for doors, elevators and garages.
ReadSomething the guides do not answer?
Send us the building and the question. Support comes from the engineers who designed the boards.