US ROBOTICS SPORTSTER

Manufacturer: U.S. Robotics
Model: Sportster
Latest Firmware Revision Tried: Supervisor 4.1 (04/22/93)/DSP 10 (03/23/93)
Recommended Firmware Revisions: Supervisor 4.1 (04/22/93)/DSP 10 (03/23/93)
Last Updated: Date: 1998/10/12 20:47:51 $

  Firmware revisions numbers appear to be meaningless; only the data stamps are useful.
  Newer v.34 models include Class 2.0 fax support.

CLASS 1 SUPPORT

- Timing problems have been observed with older firmware revisions; if you have problems, be sure to verify the firmware revision.
- When sending DCD is raised when carrier is first received, but it is then dropped from the first HDLC receive until the point where the initial training is sent (from that point on DCD is asserted); this can be a problem because there is no way to override this behaviour which means that the host must be capable of ignoring DCD for sending to function correctly
- In testing the modem locked up during transmission to a Multi-Tech 1432BA modem and failed to respond to the host dropping DTR

CLASS 2.0 SUPPORT

- No information available.

Modem Index ZyXEL U-1496