Bruknet and kermit (or nmrnet) transfer the 24 bit Aspect
data by splitting the data word into three 8-bit bytes. The two
protocols differ in the order they store these bytes, one uses
the byte order 1, 2, 3, while the other uses the order 3, 2, 1.
Mike Engelhardt (eng@bruker.de) said that there is an utility
available in the 930901 UXNMR version called convswp which will
convert kermit style files to Bruknet style, readable by the
conv or btran utilities. For those of us who cannot upgrade to
the newer UXNMR, he has a c program 'swap3' which will
do the same conversion. Also, for the conv and btran utilities,
the files to be converted need to have uppercase file names.
For the people who were interested in nmrnet, we have been using
this program for some time and are very happy with it. Those who
are using zznet may want to consider switching to nmrnet; it uses
the same hardware as the zznet program, does a better job of
transfering the parameter block, and has been less prone to
crashing than was zznet. Nmrnet can also be run in batch mode,
though we haven't tried this as of yet.
Nmrnet (and zznet) require a parallel card in a IBM compatable
PC (We use the CIO-DIO 24 board from Computer Boards Inc.,
Mansfield MA, (508)261-1123) and a custom PC <-> Aspect interface
which is described in Appendix 2 of Zolnai et al.,
J. Magn. Reson. 88, 511-522 (1990).
The nmrnet program is written by Charles. E. Cottrell at Ohio State,
his email address is cottrell.2@osu.edu.