Parallel port & SCSI

[hyalaman]

This is continuing a thread from 3 years ago, but I have a question
about a scanner of mine. It is a ScanPlus III 300 scanner, and
according to the online manual, it has a SCSI interface with a SCSI
card included, but looking at the scanner, it appears to have a
parallel port interface(right number of pins), including a connector
with a printer symbol, presumably for sharing the parallel port. Can
anyone explain this seeming contradiction?

Here is the link to the manual.

http://www.gtcocalcomp.com/CalCompfiles/sp3hdwm.pdf (875 KB)

 

[Lil' Dave]

Can't tell crap from figure 1.1 in the manual you enclosed about the
scanner. Nor anything else for that matter regarding your question.

I might pose a similar question regarding the Microtek E3 scanner regarding
all 3 of its ports.
Dave

 

[J.Clarke]

On 8 Sep 2003 22:41:33 -0700

This is continuing a thread from 3 years ago, but I have a question
about a scanner of mine. It is a ScanPlus III 300 scanner, and
according to the online manual, it has a SCSI interface with a SCSI
card included, but looking at the scanner, it appears to have a
parallel port interface(right number of pins), including a connector
with a printer symbol, presumably for sharing the parallel port. Can
anyone explain this seeming contradiction?

Here is the link to the manual.

http://www.gtcocalcomp.com/CalCompfiles/sp3hdwm.pdf (875 KB)

Are you sure that the symbol is a printer and not the SCSI symbol shown
at
<http://www.nikon-euro.com/nikoneuro_en/faq/general/en/FAQ_gen_en_1.htm

(note--that link may have wrapped)?

In any case the 25-pin D connector for SCSI is not unusual.

I'd be very surprised if a Calcomp scanner had a parallel port
interface--Calcomp's major market was pro CAD with Unix workstations
where SCSI would be a given, while a centronics parallel port would not.

 

[Walt]

I have an older HP scanner, and it has a DB25 connector for SCSI.
A DB25 connector is just one standard for SCSI and it is true, a
DB25 connector is also used for parallel printer ports.

SCSI can also be daisy changed and why there is second DB25 connector
on your scanner.

 

[CJT]

I have an older HP scanner, and it has a DB25 connector for SCSI.
A DB25 connector is just one standard for SCSI and it is true, a
DB25 connector is also used for parallel printer ports.

I don't think DB25 is standard for SCSI, but it _was_ used, standard
or not.

 

[hyalaman]

Are you sure that the symbol is a printer and not the SCSI symbol shown

at
<http://www.nikon-euro.com/nikoneuro_en/faq/general/en/FAQ_gen_en_1.htm

Yes it is a printer symbol, and I guess it is a passthrough for a SCSI
printer then, or perhaps a connection to scan and print directly.

Thanks.

 

[Barry OGrady]

I have an older HP scanner, and it has a DB25 connector for SCSI.
A DB25 connector is just one standard for SCSI and it is true, a
DB25 connector is also used for parallel printer ports.

SCSI can also be daisy changed and why there is second DB25 connector
on your scanner.

His scanner probably connects to a printer port, as mine does. The second
DB25 is to allow a parallel printer to be used on the same port.

I have a SCSI external hard drive unit that connects to the computer by a printer
port.


-Barry
========
Web page: http://members.optusnet.com.au/~barry.og
Atheist, radio scanner, LIPD information.
Voicemail/fax number +14136227640

 

[Barry OGrady]

Yes it is a printer symbol, and I guess it is a passthrough for a SCSI
printer then, or perhaps a connection to scan and print directly.

The printer symbol is to indicate that the scanner plugs into the printer port.
It's a very common method of connecting scanners.

Thanks.

-Barry
========
Web page: http://members.optusnet.com.au/~barry.og
Atheist, radio scanner, LIPD information.
Voicemail/fax number +14136227640

 

[Mac McDougald]

I don't think DB25 is standard for SCSI, but it _was_ used, standard
or not.

Well, was as "standard" as any other SCSI port. My HP IIcx has one (also
has Centronics) and the first SCSI Zip drives use the 25pin connector.
Also my Macintosh Power PC 4400/200 has that connector as it's SCSI out
port.

Mac

 

[Cyborg-haf]

Reading the linked Calcomp Manual, the scanner is scsi model, not a parallel
port model. All he needs is scsi card and scsi cable with proper end
connectors for card and scanner. The two ports on the scanner are for
connection to the card and connection to any scsi device daisy-chained to
it.
Herb

 

[Barry OGrady]

Reading the linked Calcomp Manual, the scanner is scsi model, not a parallel
port model. All he needs is scsi card and scsi cable with proper end
connectors for card and scanner. The two ports on the scanner are for
connection to the card and connection to any scsi device daisy-chained to
it.

Why the printer symbol?

My scanner connects to a printer port. The second DB25 is to allow a parallel
printer to be used on the same port.

I have a SCSI external hard drive unit that connects to the computer by a
printer port.


-Barry
========
Web page: http://members.optusnet.com.au/~barry.og
Atheist, radio scanner, LIPD information.
Voicemail/fax number +14136227640

 

[bill]

Why the printer symbol?

My scanner connects to a printer port. The second DB25 is to allow a parallel
printer to be used on the same port.

I have a SCSI external hard drive unit that connects to the computer by a
printer port.


-Barry

I'm being confused by the words you're using.
Is your SCSI external hard drive actually connected through a printer
(parallel) port, or using a DB25 connector?

 

[Barry OGrady]

I'm being confused by the words you're using.
Is your SCSI external hard drive actually connected through a printer
(parallel) port, or using a DB25 connector?

My external hard drive unit uses a SCSI hard drive connected to an interface which
connects to the computer through a standard parallel printer port. I only need load
a small driver in config.sys for the external hard drive to work. It also has a second
db25 for a printer passthrough.


-Barry
========
Web page: http://members.optusnet.com.au/~barry.og
Atheist, radio scanner, LIPD information.
Voicemail/fax number +14136227640