Addressable RS-485 to 1-WIRE Converter
ADA-401WA

Addressable RS-485 to 1-WIRE Converter* The prices are given in the response to the offer.
The industrial addressable RS-485 converter to 1-WIRE ADA-401WA enables on basis of the RS485 bus to build the network with addressable node, to which it is possible to connect a lot of devices with the 1-WIRE interface so as: arrangements for the measurement of the temperature, clocks of the real time, the EPROM memory, A/C converters, for and the like. Applying ADA-401WA converter as addressable node for the 1-WIRE bus increase the distance up to 1200m between 1-WIRE devices and the computer with the monitoring software or other the MASTER type device. This distance can be increased for another 1200m by using ADA-4040 repeater.
The DS2480B system provide conversion from 1-WIRE interface to RS-485 interface in ADA-401WA and the converter of TTL levels on RS-485. It is exempt the user from go into details of the enough complicated 1-WIRE protocol.
Applying the additional RS-485 converter to RS-232 ADA-1040 or USB to RS-485 ADA-I9140 enables to monitor and/or to control the 1-WIRE negotiations through the RS-232 interface or USB in the computer of the class equipped with the PC into the appropriate software. CEL-MAR Company gives the materials to creating software on the basis of ADA-401WA converters.
ADA-401WA is equipped with screw terminal for twisted connection of 1-WIRE and RS-485 bus, as well as for connecting the power supply.
Over-voltage protection on each RS-485 line was made on base over-voltage LEDs and fuses.
It is possible to connect 32 ADA-401WA devices operating in linear topology to RS-485 bus. It is possible to connect other 32 converters by applying ADA-4040 repeater.
ADA-401WA is adapted for powering permanent tension from the outside source which value should contain oneself around from the 10V up to the 30V and was delivered from power pack about the power of 2W min. Converter has Implemented protection against opposite polarization of power supply.

Example of connection ADA-401WA converter