Microtek 9800XL Firewire or SCSI?

  • Thread starter Thread starter Chris
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Chris

What is the fastest transfer rate scsi or firewire?
I am using firewire at present on my microtek 9800XL but it seems a
little slow, so would there be an improvement in using a scsi
interface instead?
tia
Chris
 
Chris said:
What is the fastest transfer rate scsi or firewire?
I am using firewire at present on my microtek 9800XL but it seems a
little slow, so would there be an improvement in using a scsi
interface instead?
tia
Chris
Click to expand...

Firewire is faster than SCSI.

The theoretical speeds are:
USB 2.0 480 Megabits per second. Translates to about 60 Megabytes per
second.
FireWire 400 Megabits per second. Translates to about 50 Megabytes per
second.
USB 1.1 12 Megabits per second. Translates to about 1.5 Megabytes per
second.

SCSI is about 33-40 Megabytes per second.
http://www.pcguide.com/ref/hdd/if/scsi/protSpeed-c.html
 
"... Firewire is faster than SCSI...."

Not really true in all cases.

FWIW:
33-40 Megabytes per second is 264 to 320 Megabits per second.

And ... that's just for the slower version of SCSI. Data transmission rates
go up to 320 megaBYTES per second ... on a two byte wide path ... for 640
megaBYTES per second throughput.

That's roughly 5,120 megaBITS per second.
 
What is the fastest transfer rate scsi or firewire?
I am using firewire at present on my microtek 9800XL but it seems a
little slow, so would there be an improvement in using a scsi
interface instead?
Click to expand...

No. Both SCSI and Firewire are quite a bit faster than a scanner can
go, so you wouldnt see any difference. It really doesnt matter just
how much faster than the scanner, the scanner simply cannot go that
fast. It might matter if it were a faster device, like a disk drive.

If you could drop back to a USB 1.1 or a parallel port inferface, then
it is no longer necessarily true that they are faster than the scanner,
so you likely would see a difference then - cases when the scanner has
to pause and wait for the interface.
 
RSD99:
Did you even look at the link I gave for SCSI or was that a knee jerk
reaction?

The link has a very good detail about SCSI and the speed of 16 bit transfer.
However scanners are mostly slow and 8 bit data transfer.
 
I usually go by what the Adaptec site says ... and I've been using SCSI
successfully for about twenty (20) years now.
 
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