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ALTA Serial Modbus Gateway


Monnit Serial Modbus Gateway

Europe – 868 MHz


£230.00 (£276.00 incl. VAT)

ALTA Serial Modbus Gateway

The Monnit Serial Modbus Gateway acts as a data concentrator for Monnit wireless sensor networks. This device incorporates Monnit’s Access Point Node (APN) and Serial RS-232C and RS-485 Interfacing hardware.

We recommend purchasing the Serial Modbus Gateway – USB programmer and software to help you configure and use your Monnit SMG Gateway.

View Serial Modbus Gateway – USB Programmer



  • Works with Monnit Sensor Networking Solutions
  • Communicates with MODBUS RTU / ASCII Serial Protocols
  • Supports RS-232C / RS-485 Interfacing
  • NEMA 4X / IP66 Rated Enclosure
  • RP SMA Antenna Connector (Antenna Included)


In the Box:

  • Serial Modbus Gateway
  • RP SMA Antenna
  • Serial Modbus Gateway
  • High Gain Antenna



Monnit Serial Modbus Gateway Specifications

Antenna Connector: RP-SMA Gain: 5.0 dBi Standard
Protocols Supported Jumper for RS-232 and RS485
Input Voltage 4.5 – 36.0 VDC
LED Lights Wireless Activity, Wired Activity, System Status
Enclosure Material Durable, Impact-Resistant UV Stabilized Polycarbonate (IP65 of IEC 529 and NEMA 1, 2, 4, 4x, 12 and 13 Rated)
Dimension 179.603 x 90.678 x 41.30 mm
Weight 16 oz.

Variation Specifications

Security Encrypt-RF® (256-bit key exchange and AES-128 CTR)

ALTA 868 MHz Specifications

Operating Frequency 868 MHz Operating Frequency
Certifications CE Certified. Tested and found to comply with: EN 300 220-2 V3.1.1 (2017-02), EN 300 220-2 V3.1.1 (2017-02) and EN 60950.
Security Encrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC)
Device Range Device Range Up to 1,200 ft. non-line-of-sight, wireless device range*


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