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HAMELBUILDING TECHNOLOGIESHamel Building Technologies

Product datasheet

DS-AN-232 · Rev A · 2026-09

Supervisory controller

AeroNode 232

Two RS-485 trunks plus two RS-232 ports.

The same controller with a mixed serial configuration. COM3 and COM4 are isolated RS-485 trunks for BACnet MS/TP or Metasys N2. COM1 and COM2 are RS-232 ports for point-to-point serial equipment through Aero's RS-232 drivers. Everything else matches the AeroNode 485.

LAN1 · 1GLAN2 · 2.5GHDMISVCPWRRUNNETCOMAeroNode 232COM1 RS-232TRGCOM2 RS-232TRGCOM3 RS-485ABGCOM4 RS-485ABGDI12CDO12C7–36V+−AeroNodeAN-232

Key features

  • No point or device licensing; no annual SMA
  • BACnet/IP, BACnet MS/TP and Metasys N2 (N2 Open) drivers, each in its own supervised process
  • Program sheets with PID, formula and reusable macros; schedules; trending; alarms
  • HTML5 AeroView served over HTTPS; nothing to install
  • Outbound-only encrypted connection to AeroServer and AeroConnect
  • Signed firmware with automatic rollback

Specifications

Compute

Processor
Quad-core 64-bit Arm, 2.4 GHz
Memory
8 GB with ECC
Storage
32 GB eMMC; optional M.2 NVMe SSD up to 1 TB
Real-time clock
Battery-backed RTC
Watchdog
Hardware watchdog with automatic recovery

Communications

Ethernet
2 independent ports: LAN1 1 GbE, LAN2 2.5 GbE
Serial
2× RS-232 (COM1–COM2, TX/RX/GND); 2× isolated RS-485 (COM3–COM4) with termination jumpers
USB
USB 3.2 and USB 2.0 host ports
Wireless (option)
Dual-band Wi-Fi 5 (802.11ac) + Bluetooth 5.0, external antenna
Cellular (option)
4G LTE Cat-4 global-band modem with GNSS, Nano-SIM slot

I/O & power

Binary inputs
2× isolated binary inputs (up to 36 VDC)
Binary outputs
2× isolated solid-state (open-drain) outputs for interposing relays
Power input
7–36 VDC, pluggable screw terminal (24 VDC nominal)
Indicators
Power, activity, network and user status LEDs; buzzer

Software

Firmware
AeroNode firmware with signed updates and automatic rollback
User interface
AeroView, HTML5 in any modern browser, served over HTTPS
Field protocols
BACnet/IP, BACnet MS/TP, Johnson Controls Metasys N2 (N2 Open)
BACnet server
Publishes selected points as BACnet/IP objects for third-party front ends
Licensing
No point or device licensing. No annual SMA.

Physical & environmental

Enclosure
Fanless aluminum alloy, passive cooling
Mounting
35 mm DIN rail (clip included) or VESA 75 wall mount
Dimensions
Approx. 5.4 × 3.6 × 1.6 in (137 × 92 × 40 mm)

Ordering information

Part / codeDescription
AN-232AeroNode 232, standard configuration
…-WWi-Fi & Bluetooth: Wi-Fi 5 + Bluetooth 5.0 (Dual-band 802.11ac, external antenna)
…-LCellular modem: 4G LTE Cat-4 + GNSS (Global bands, 150/50 Mbps, Nano-SIM slot, external antennas)
…-N256Expandable storage: + 256 GB NVMe SSD
…-N512Expandable storage: + 512 GB NVMe SSD
…-N1TExpandable storage: + 1 TB NVMe SSD