The WMO-400S Series Radio modems are a range of high performance modems. The modems have the ability to transfer data at 19.2kb/s over distances up to 100Km using a frequency range between 430 – 490MHz bands which are licenced and licence-free radio channels. The unit features two RS232 and one RS485 connection, (two data ports and one configuration port).
Products available below, or contact us for more options and pricing.
The WMO-400S radio modem provides RS232 or RS485 connections by radio. It provides are wireless connection between a PLC and remote dataloggers, sensors and supervisory computers.
The WMO-400S has been designed to be easy to use and simple to install. It operates in the frequency range of 430-490MHz, with low and high transmitter power and a maximum achieveable range of up to 60 miles (100Km). Each modem can operate as a repeater and to a serial device, allowing the units to optimise the network and an increased range.
Features
Specifications
Serial Port
Port types: 1 x RS485 (1.2 to 187.5 kb/s),1 x RS232 (1.2 to 115.2 kb/s) and a second RS232 port for configuration/diagnostics.
Data Configuration: 7/8 data bits, 1/2 stop bits, odd/even/no parity
Digital Input/Output
One I/O channel
Input voltage-free contact / Output FET 30V DC 500mA
DI can be transmitted to remote DO
Also used for alarm output, or powering up local devices, or hot redundant standby control.
Radio Specifications
Frequency: 430 – 490MHz radio transceiver, half-duplex or simplex operation. Up to 9.6/19.2 kb/s wireless data (12.5/25 kHz channels)
Frequency configurable: 5/6.25 kHz steps within ±10MHz band
Frequency tolerance: +/-1.5 ppm over temperature range
Configurable transmitter power: 10 to 500mW, 0.5 to 5W
Data modulation: DFSK, GMSK, 4-level FSK
Duty cycle: 50%, 30 second maximum transmission time, also limited by configurable timeout and internal thermal shutdown protection
Receiver sensitivity: –112dBm @ 10E-3 BER–120dBm @ 12dB SINAD
Lightning protection: Internal gas discharge arrester
General
Environmental
Temperature Range: -30°C to +60°C
Humidity: 0 to 99% non-condensing
Input Power
Supply Voltage: 11 to 30V DC
Battery Charger: Float charge voltage 13.8V DC with current limit set to 1.6A (minimum supply voltage 15V)
Low power sleep mode: configurable using DTR control
Physical
Housing: Powder-coated, extruded aluminium
Dimensions: 140 x 114 x 30mm
Mounting: ‘T’ section 35mm DIN rail to EN 50022
Weight: 0.4 kg
WMO-400S
£754.00
Not
Available
online
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