These
apparatus allows a point-to-point (or point-to-multipoint) wireless connection
between two or more RS232/485 devices, in completely transparent mode. All
devices of this series are provided of one optoisolated digital
input and one digital output (relay).
The devices of this series are available in the following
frequencies:
- VHF 169.400-169.475Mhz (DL169),
- UHF 433.050-434.790MHz (DL433)
- UHF 868-870Mhz (DL868)
and are all characterized by low cost and free
use.
Operating on relatively low frequencies, these devices are
suitable in all cases where there is a need to overcome obstacles (trees,
buildings, etc..) Or, however, where there isn't line of sight between them.
It's also possible to extend the coverage, in compliance
of directives, using a third device configured as Digipeater or using a directive
antenna Yagi antenna to replace stylus 1/4Lambda or dipole antenna.
The
device is characterized by an extremely low power consumption and of a power
saving mode that allow the use in battery powered and/or solar powered systems.
The configuration is made through a free software
tool running in Windows™ environment. |