ROCKWELL K56 FIRMWARE

There are many modems with the Rockwell AC/K56 firmware : for example

Manufacturer: Diamond Multimedia Model: SupraExpress 56
Manufacturer: Multitech Model: MT5600ZDX
Manufacturer: Zoom Model: 56Kx 2949
Last Updated: Date: 1999/03/24 23:07:11 $

  This firmware can be identified by the modem interrogation results:
  - AT+FMFR?

        ROCKWELL

  - AT+FMDL?

        AC/K56

CLASS 1 SUPPORT

- No comment.

CLASS 2 SUPPORT

Initial versions excluded Class 2 support. It is not known at what firmware version Class 2 support was re-introduced
For example:

Multitech MT5600ZDX bought in 1998 without Class 2 support:
- ATI6 RCV56DPF-PLL L8571A Rev 19.00/19.00

Zoom 56Kx bought in early 1999 with Class 2 support
- ATI6 RCV56DPF L8570A Rev 47.24/47.24

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