The interface board feature an on board Multi channel TDL2A-433-9 OEM serial modem, MAX232 RS232 driver, 9 way D connector, 5V voltage regulator and SMA RF connector, hence requires just a Voltage supply to power up and operate without any additional interface circuitry. The TDL2A modules would be soldered directly on to the interface board for better grounding and to improve RF performance. The helical antenna and the SMA connector shown are optional. User could also use a two pin terminal block instead to mount a 1/4 whip antenna made of piece of wire or metal rod
Features
RS232 driver and DB9F connector for direct interface to PC serial port
Serial modem baud rate at 9600bps (half-duplex)
Carries ASCII and RTU MODBUS messages
Addressable point-to-point
5 serial select wideband channels
Access to internal diagnostic/Test modes using HyperTerminal
On board SMA antenna connector
Signal LED for visual indication of valid code received
Setup is simple as Plug-and-Play
Set-up and configuration using HyperTerminal
Conforms to EN 300 220-3 and EN 301 489-3
Size: 61mm x 33mm (excluding helical antenna length of 55mm)
Applications
Handheld / portable terminals
PDAs, organisers & laptops
Industrial telemetry and telecommand
In-building environmental monitoring and control
Remote data acquisition system, data logging
Fleet management, vehicle data acquisition