A: Thank you for the inquiry. The DS1402-RP8+ provides the electrical connection between the 1-Wire/iButton adapter and the iButton. All of the adapters you listed will work with the DS1402-RP8+ and have a unique serial number that appears on the 1-Wire network. The differences include:
a) DS9097U-009 - is discontinued. It does not comply with RoHS regulations (preventing import to the EU). It connects to the computer with a DB9 connector and uses RS232.
b) DS9097U-009# - is an active part. It connects to the computer with a DB9 connector and uses RS232.
c) DS9490R# - is an active part. It connects to the computer with USB.
The "#" or "+" at the end of a formerly Maxim Integrated 1-Wire or iButton part number indicates the part complies with RoHS regulations.
Was this answer helpful?
0 of 0 Customer(s) found this Answer helpful.
Answer provided by: David Cooley (3/14/2024)