DS9490R# is a USB bridge with 1-wire RJ11 interface to accommodate 1-wire receptacles and networks. Its based on the DS2490 USB-to-1-wire bridge chip that enables communication between a USB host system and a 1-wire bus. It provides regular, overdrive, and flexible 1-wire communication speeds and a full speed 12Mbps connection to USB. USB vendor specific commands defined in this specification are used to control the DS2490 and communicate with attached 1-wire devices.
High speed 12Mbps USB interface
Supports standard and overdrive 1-wire communication
Slew rate controlled 1-wire timing and active pull up for improved 1-wire network performance
RJ11 interface for standard connectivity (accessories such as the DS1402D-DR8)
Built in custom DS2401 identification chip
Reads all 1-wire and writes all except EPROM 1-wire devices
