The DS9097U is a sophisticated RS232 to 1-Wire adapter, which performs RS232 level conversion and actively generates the 1-Wire communication signals. Together with an adequate TMEX software driver, it enables an IBM-compatible PC to directly communicate with any 1-Wire device connected to the adapter's RJ-11 port. The DS9097U-E25 reads and writes EPROM 1-Wire devices. To write to EPROM devices, an
external power supply is required.
Notes
The external supply for the DS9097U-E25 must provide well-regulated 12V @ 10mA minimum, center = GND, outer ring = V+ (Newark Electronics Stock No. 84F2081, Allied Electronics Stock No. 928-9895, Stancor Model STA-300R, or equivalent).
The color of the DS9097U-E25 plastic case may vary.
Features
- True-Ground Interface to an RS232 COM Port for Reading and Writing 1-Wire Devices
- Works with Bipolar as well as Unipolar Logic Signals
- Compatible to COM port of (±)6V to (±)12V
- Supports Reading and Writing at Regular and Overdrive Speeds
- Provides Strong Pullup to 5V for Temperature-, Crypto-, and EEPROM 1-Wire devices
- Programs 1-Wire EPROM Devices (with External 12V Power Supply Only)
- Communicates at Data Rates of 9.6 (default), 19.2, 57.6, and 115.2kbps
- Standard DB-25 Female Connector and 6-lead RJ-11 Connector for Easy Attachment of Standard 1-Wire Cables and Probes
Pin Assignment
TXD (2), RXD (3), DTR (20), RTS (4), PC-Ground (7); all other pins not connected
Applications
- Demonstration - Demonstrate the features of iButtons or 1-Wire chips on personal computers.
- Development - Aid development of 1-Wire applications by providing a PC interface to verify device contents and state.
