[comp.sys.mac] Common Comm Misconception

svc@well.UUCP (Leonard Rosenthol) (11/22/89)

In article <1464@mrsvr.UUCP> hallett@gemed.ge.com (Jeffrey A. Hallett (414) 548-5163) writes:
>In article <128005@sun.Eng.Sun.COM> rock%warp@Sun.COM (Bill Petro) writes:
>>[delete stuff about White Knight 11 and Kermit Problems]
>
>You  will not be   able to transmit  binaries  unless  you are running
>8-bit, no parity.  .hqx files (being just  7-bit ascii) will work fine
>for  7-bit, odd or even, but  to  utilize the MacBinary   transfer for
>Kermit or any *MODEM, 8-bit,N must be running.
>
	This is a common misconception in the world of Macintosh Telecom. Just
because MacBinary is an 8bit file format, DOES NOT mean that it can be not be
transmitted over a 7 bit data path PROVIDED that the transmitting protocol is
able to handle such a contingency.
	Kermit is the perfect example.  Most Kermit xfers are done over a 
7bit (even/odd parity) path, but there is no reason that you can not xmit
an 8bit data file over that path ASSUMING that both Kermits are able to 
perform this feat.  Most/All UNIX and VMS Kermits that we have tested seem to
have no problem with this, and the Kermit implementation in MicroPhone II 
has always supported this.  I would recommend that others do as well.

Leonard Rosenthol
Software Ventures
MicroPhone II Development Team

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