DSZ ZMODEM problem

[James P. H. Fuller]

In <1991Mar16.190010.21805 at cs.wayne.edu> lee at pandora.cs.wayne.edu (Harrison Y. Lee) writes:


>	Does anyone knows how to use DSZ Zmodem protocol in unix, I got
>	the program and tried it with Procomm Plus 2.0 with internal
>	Zmodem built in, it doesn't seems to work with both the built
>	in zmodem and the external DSZ zmodem.
>	I started the sending in unix and go to Procomm Plus and initialize
>	the receiving and I got timeouts and had to abort the transmission.
>	Do I need to do some extra works in unix to get it work??

    I'd like to hear about this also.  I have Forsberg's rz and sz compiled
for ISC Unix rel.2.2  (SysVr3.2) and whenever people call from DOS machines
and try to download stuff using dsz they get lots of timeouts and error re-
covery and a very low transfer rate.  My modem is a T2500 with the registers
optimized (as best I can) for unix/uucp.  Also my rz/sz is fairly old, since
it's what came as a freebie on the disk Omen Tech sent me when I registered
dsz-for-DOS a couple of years ago.  Would a newer rz/sz help, or is it my
modem settings or something else?  My serial card has only a 16450 UART, but
all the errors happen even at 2400bps, so it doesn't seem that the lack of
a buffer is the problem.
                                                Thanks
                                                James P. H. Fuller
                                                jim%crom2 at nstar.rn.com