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Alta-Serial-Gateways
Alta Series Serial RS232/RS485 Modbus RTU Gateways
Models In Stock
- Receive Data from Up to 50 ALTA Wireless Sensors
- Available in 915 MHz for USA Canada or 868 MHz for Europe
- IP65 NEMA 4X Enclosure
- Uses Standard MODBUS Protocol for Transferring Sensor Data to Customer Devices / Applications
Alta-Serial-Gateways
From
$
393.63
Models In Stock
Product Overview
- Approvals FCC ID: ZTL- RFSC1 and IC: 9794A-RFSC1
- Data Interface RS232, RS485
- Data Interface Note Protocol Selector: Modbus RTU / ASCII Serial, RS232C: TXD (OUT), RXD (IN), and Ground / Common, RS-485: D+, D-, and Ground / Common; Devices Supported, Max: 50
- Display Type N/A
- Electrical Output N/A
- Enclosure Material Polycarbonate
- Enclosure Ratings IP65, NEMA Type 1, NEMA Type 12, NEMA Type 13, NEMA Type 2, NEMA Type 4, NEMA Type 4X
- Enclosure Type N/A
- Height 90.678 mm
- LED Indicators Wireless Activity, Wired Activity, System Status
- Length 179.603 mm
- Operating Temperature, Max 85 °C
- Operating Temperature, Min -40 °C
- Reset Communication / Factory Settings Reset Jumper
- Series ID Alta-Serial-Gateways
- Storage Temperature, Max 85 °C
- Storage Temperature, Min -40 °C
- Supply Current 100 mA
- Supply Power Note Voltage Range: 4.5 - 36.0 VDC, Minimum Current Required: 100mA (500mA Recommended)
- Supply Power Type DC
- Supply Voltage 4.5 to 36 Vdc
- Weight 16 oz
- Width 41.3 mm
- Wireless Band 900 MHz
- Wireless Range Note RFSC1 Module by Monnit Frequencies: 433, 868 and 900 MHz (Future support for WiFi and 500 mW modules); Antenna Gain: 5.0 dBi Standard; Antenna Connector: RP-SMA
Supported Applications
The Omega Alta Series Serial RS232/RS485 Modbus RTU Gateways function as data concentrators for Monnit wireless sensor networks. The device connects up to 50 wireless sensing devices per gateway to existing serial Modbus infrastructures, supporting open standards like Modbus RTU and ASCII protocols. This capability enables integration with SCADA systems, PLCs, and other industrial control environments by allowing the wireless expansion of traditional wired networks.
Operating Conditions & Performance
The gateway operates within an ambient temperature range of -40°C to +85°C (-40°F to 185°F) with identical storage limits. It is housed in a durable, impact-resistant UV stabilized polycarbonate enclosure rated IP65 (IEC 529) and NEMA 1, 2, 4, 4x, 12, and 13 Rated. The unit requires an input voltage of 4.5 - 36.0 VDC with a minimum current requirement of 100mA; 500mA is recommended for operation.
Communication performance relies on the RFSC1 Module by Monnit, supporting frequencies at 433 MHz, 868 MHz, and 900 MHz. The standard antenna configuration utilizes an RP-SMA connector with a gain of 5.0 dBi. Future support for WiFi and 500 mW modules is noted in the specification documentation.
Configuration Options
The series provides configurable communication interfaces via jumpers to select between RS-232C or RS-485 protocols on a 3-wire interface. The physical design includes status indicators for wireless activity, wired activity, and system status LEDs.
- Communication Interfaces: Supports RS-232C (TXD, RXD, Ground/Common) or RS-485 (D+, D-, Ground/Common).
- Housing & Dimensions: Enclosure measures 179.603 x 90.678 x 41.30 mm and weighs 16 ounces.
- Reset Features: Includes a jumper for communication or factory settings reset.
Certifications include FCC ID: ZTL-RFSC1, IC: 9794A-RFSC1, CISPR 22:2008-09 / EN 55022:2010 - Class B, and ETSI EN 300 220-2 V2.4.1 (2012-05).
Key Product Differences
The Alta Series is offered as the Monnit Serial Modbus Gateway (SMG). The available variant, model MNG2-9-SG-SMG, represents a specific configuration within this family. While the series supports multiple frequency bands (433 MHz, 868 MHz, and 900 MHz), individual units are configured for specific regional or application requirements as defined by the selected module.
PDFs & Manuals
