| Technical Data | Value |
|---|---|
| Auxiliary power supply terminal | Screw terminal 12–30 VDC / GND |
| Operating temperature | +5 °C to +45 °C |
| Enclosure dimensions | 2 SU |
| Mounting | DIN rail |
| Ethernet | RJ45 connector |
| Communication protocol (events) | SIA over local Ethernet |
| Communication protocol (commands) | Encrypted AJAX cloud protocol (internet required) |
| Modbus TCP port | 502 |
| Modbus Unit ID | 1 |
| Simultaneous Modbus TCP connections | 2 |
| Supported Modbus function codes | 0x01 (Read Coils), 0x05 (Write Single Coil) |
| Maximum detectors | 96 per gateway |
| Maximum areas | 4 per gateway |
| Total coils | 145 |
Modbus TCP Gateways for Alarm Systems / AJAX-MBTCP User Manual
Technical data
Power, mounting, temperature, Modbus connection limits and supported alarm capacity.
elausys · 19 September 2026Frequently Asked Questions
What are the supply and operating temperature limits?
The auxiliary supply is 12-30 VDC. The operating temperature range is +5 °C to +45 °C.
How is the gateway mounted?
The gateway mounts on a DIN rail and occupies two space units.
Keep exploring
Find the other guides for this product in the documentation.
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