DIGICOM SCOUT+

Manufacturer: Digicom Systems
Model: Scout+
Latest Firmware Revision Tried: 3507/3506
Recommended Firmware Revisions: 2A19/2931
Last Updated: Date: 1998/10/12 20:47:51 $

  There is online documentation and an FAQ for Digicom modems.

CLASS 1 SUPPORT

- `AT+FMFR?`, `AT+FMDL?`, and `AT+FREV?` all return "`3`" in some versions of firmware (where vestiges of Class 2 support were present)
- `ATS17=2` can be used to force 1300 Hz CNG tones to be sent (the register is not documented)
- RTS/CTS is not honored while sending page data; software flow control must be used (`AT*F2`). This is fixed in rev 3507/3506 firmware by adding a register `S24` that can be used to control flow control in facsimile mode:
    0 means use XON/XOFF,
    1 means use RTS/CTS, and
    2 means use whatever is specified by AT*F.
  Note however that `S24` is not permanent; it is reset after each disconnect. On power on `S24` is 0. `S24` is unchanged by `AT&F`.
- Receiving at 4800 baud v.27 does not work correctly; received data is garbage (fixed in firmware revision 3225/3310).
- Commands must not be sent to the modem too fast, no more than every 50ms (or more) depending on what the modem is doing.
- The modem gets confused by receivers that assert a data carrier before sending CED; a `+FCERROR` result is returned before usually returning "`NO CARRIER`"; this can sometimes be overcome by sending 1300 Hz CNG tones instead of the normal 1100 Hz tones.

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