Data Cartridge

[ziloo]

Folks......what is the use(s) of this item:

https://www.ebay.com/itm/2660367072...=true&nordt=true&rt=nc&_trksid=p2047675.l2557

I vaguely remember a similar device for data backup...several years ago.

ziloo

 

[krebizfan]

The link seems to show 6 QIC tapes now. Which version of QIC? Don't know, not spending the time to calculate the capacity.
If it was a different cartridge, then I hope you saved a picture of the earlier post.

 

[Chuck(G)]

It's the backup storage for a Siemens SICOMP-M26 PLC.

https://cache.industry.siemens.com/dl/files/043/18320043/att_66119/v1/C79000-P9076-C086_04-B2.pdf

Also search on "TELEPERM M"

 

[ziloo]

The media storage for a process control system with
650 pages of manual.

Data Cartridge specifications say: 12.500 fpi;
does it mean 12,500 frames of data per inch, and
is that a high number!?

Compared to regular audio cassette tapes that
have two reels with two openings for the spindles
to engage, I don't see any on these cartridges!
How do the reels rotate?

ziloo

 

[djg]

I don't see any on these cartridges!
How do the reels rotate?

Internal drive belt that goes over tape reels driven by capstan

https://www.computerlanguage.com/results.php?definition=quick+tape

 

[krebizfan]

Data Cartridge specifications say: 12.500 fpi;
does it mean 12,500 frames of data per inch, and
is that a high number!?

FPI is Flux (Reversals) per Inch. It provides the basis for the more useful bits per inch calculation depending on how many flux reversals are needed per bit. 12,500 fpi was expected for cartridges which could store 60 MB on 9 tracks; less if using one of the versions with fewer tracks.