NetNews Usenet Archive 1992 #31/NN_1992_31.iso/spool/comp/os/os2/misc/40637

Internet Message Format | 1992-12-30 | 1.9 KB

Xref: sparky comp.os.os2.misc:40637 comp.sys.ibm.pc.hardware:34450 comp.os.msdos.misc:6773
Newsgroups: comp.os.os2.misc,comp.sys.ibm.pc.hardware,comp.os.msdos.misc
Path: sparky!uunet!paladin.american.edu!darwin.sura.net!udel!princeton!mccc!pjh
From: [e-mail] (Pete Holsberg)
Subject: Re: Question about Parallel Port, please read
Organization: The College On The Other Side Of Route One
Date: Wed, 30 Dec 1992 16:09:46 GMT
Message-ID: <[e-mail]>
References: <[e-mail]> <[e-mail]> <[e-mail]>
Lines: 29

In article <[e-mail]> [e-mail] (ochealth) writes:
=In article <[e-mail]> [e-mail] (Pete Holsberg) writes:
=>In article <[e-mail]> [e-mail] (ochealth) writes:
=>
=>=>If I set the jumper for bidirectional operation, am I depending on the
=>=>printer electronics to set that bit correctly? Do all printers do it
=>=>correctly?
=>
=Since bit 5 of the control reigister ( 37Ah for LPT1) is non-standard, I
=doubt if many programs will. The bidirectional feature will be useless for
=printer stuff, but since you can use the parallel port for other things,
=like File Shuttle (transfer files between computers) and for add on
=SCSI adapters, tape drives, hard disks, etc., those drivers MAY know about
=non-standard features, it might be usefull.

Indeed, I am using a Trantor SCSI cable and a DAT for backup over the
parallel porrt.
=
=Basically, if you are just putting a printer on the port, it won't matter.
=If you put a tape drive on the parallel port, the biderctional feature will
=be VERY good (I'm pretty sure the driver program will test for bidirectional
=ports, and WILL use them if it can.)
=
=I would leave your IO card jumpered for
=bidirectional ablility unless your printer acts strangely (it can't hurt).

Thanks. I think I will do that.

Happy holidays.