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1991-06-29
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Zmodem Technical Reference Manual Page 1
Zmodem
Zmodem has a built in communications manager and doesn't
need any type of fossil, in fact you should make sure you
turn the fossil OFF if running it on a BBS that uses a
fossil.
Zmodem requires a number of command line switches:
-B, -P, {-R or -F}
-@<filename>, Can be a text file listing the files to Send.
One filename per line, unlimited number of
lines. This is to used in place of -F.
-B<Baud Rate>
-P<Port Number>
-L<Serial Lock Rate>
-R Receive files
-UDrive:path, directs that all files received should be
stored on this drive and in this directory.
This switch is primaryly for NON-OSIRIS,
NON-QT systems. Osiris takes care of this
internally and this switch should NOT be
used.
Example: -UC:\uploads
-UD:\files\temp
-UD:
Do NOT end the path with a backslash "\"
Illegal -U settings would be C:\
C:\uploads\
D:\files\temp\
-F <Filenames>
-K Keep interrupted transfers (Do not use if running on a BBS)
-Nx, with x being the node number in use. For use on Osiris
CBIS systems only. Zmodem will show the name of the
caller as well as where he's from if this switch is used.
-B, supported baud rates 300 - 115,200 Baud.
NOTE: If no -B switch is given, Zmodem will use the
current baud rate the serial port is set to. This is
primaryly a debugging aid. If you leave off the -B and
you are running a LOCKED serial port (high speed modem)
your estimated transfer times, cps, and efficiency
ratings will be off.
-S, Handskaking Slow. Should ONLY be used if you are running
a highspeed modem WITHOUT a 16550 Uart.
-P, Supported Com Ports, COM 1, COM 2, COM 3, and COM 4.
-L, Supported Locked Baud Rates, 300 - 115200 Baud.
-F, As many as DOS allows. Full drive, path, and filename
supported.
Zmodem Technical Reference Manual Page 2
NOTE: -R -@ or -F MUST be the last
parameter on the command line. As soon as
Zmodem encounters either one of these two
switches, it will begin to either Receive
or Send.
Sample Osiris Command line (protocol control file)
Send : -N*N -B*B -P*P -@*U
RCV : -N*N -B*B -P*P -R
QT 2000 (protocol control file definitions)
Send : -B*B -P*P -F *F
RCV : -K -B*B -P*P -R
Items to watch out for
Zmodem has it's own built in commucation driver. Having an
ACTIVE fossil may cause system lockups, sessions not
starting, and other possiblities. Make sure you have the
fossil turned off if your running one.
Zmodem Technical Reference Manual Page 3
Zmodem may be freely used by Osiris Owners. If you do NOT
own Osiris, Zmodem must be purchased.
The price is 15 dollars (US Currency):
Make Checks Payable to: Mike Bryeans
555 North Spring, #39
Cape Girardeau Mo. 63701
Revision History
ver 8.10
Added -S, Handshaking Slow. This causes RTS to DROP during
disk writes. This should only be used *IF* you are running a
high speed modem WITHOUT a 16550 Uart. Try running without the
-S first, if you have a fast computer and you are not running
a multi-tasker or on a Network, you may be able to slide by.
The CORRECT solution is to install a 16550 Uart, priced at
20.00's. If you're computer has the uart soldered to the
mother board you will need to get a second serial card and
install the 16550 on it. ver 8.00
Added the ability to leave off the -B switch setting for
debugging purposes.
ver 7.00
Drastic Speed up in program speed. You may not notice any
increase in transfer speed unless you happen to be running a
slower computer attempting to push a highspeed modem locked
at 38400. Or running a multi-tasker such as Desqview.
ver 6.00
Command line switches and their respective values no longer
have a space between the switch and the value.
Old Method : -N *N -B *B -P *P -F *F
New Method : -N*N -B*B -P*P -F *F
Scrolling Batch effeciency window added.
ver 4.00
New display screen like the one in Tmodem.
Only Zmodem drivers that support this feature will supply
batch information. Zmodem.exe and DSZ are the only two that
I know of at this moment that do. If the sender doesn't
support batch information, the display will remain blank.
Added EFFx.LOG for Osiris Systems.
Zmodem Technical Reference Manual Page 4
ver 3.00
Allowing Zmodem to be used on non-Osiris systems.
If OSIRIS= is not set, Zmodem will assume an alien BBS or
Terminal program and switch to NON-COMPORT.DAT status.
Meaning it'll used the standard com port definitions for
COM1, 2, 3, and 4. Baring in mind that 3 and 4 have no real
standard.