We suspect that both of these problems are being caused by an improperly
configured Log Mode Table on the host. Specifically, we are looking at the
PSERVIC field in the Log Mode Table that has the following format:
02 80 00000000 2050 1850 7F 00
| | | | | | |
| | reserved | | | reserved
| | | | |
| Query bit | | Screen Size Switch
| | |
LU Type | Alternate Screen Size
|
Default Screen Size
Where:
1) LU Type is the device type. 02 is a display device.
2) Query bit determines file transfer ability. You need the first digit of
this byte set to 8 or higher to enable DFT file transfer.
3) Default Screen Size and Alternate Screen Size are values determining the
terminal model being used. The following table shows the possible settings:
Model 1 1828
Model 2 1850
Model 3 2050
Model 4 2B50
Model 5 1B84
4) Screen Size Switch sets your ability to switch between the default and
alternate display types. If this is set to 7F, you can. If it is set
to 7E, you cannot.
In your case, we suspect that the Query bit and Default Screen Size fields need
to be reset, based on the functionality you desire. It is quite likely that
the settings are still those used when MacDFT 1.0 was being used through a
Coax/Twinax card in CUT mode.