View Full Version : What Does DB mean on a SCSI?

04-05-2005, 01:27 PM
I'm looking at an image that says:
NARROW SCSI: DB 25-pin connector

What does the DB mean? Not Database, not decibals, but something mysterious!

04-05-2005, 01:44 PM
Weird... I've never asked the question either, but I do know the D is just the shape of the connector. I have no idea what the B stands for.

04-05-2005, 02:00 PM
[...]The "D" orginally described the shape of the housing. The second letter : A, B, C, D, or E originally specified the size of the housing where the "E" is used somewhat like it's used as a drawing size (i.e., smaller then a "D"). [...]

04-05-2005, 03:23 PM
Hey Thantos what was your Google query?

So "D" is the shape of the SCSI connector and "B" is the size type.

04-05-2005, 03:25 PM
No google. I own that book

04-05-2005, 03:33 PM
Hey Thantos what was your Google query?

Searching "DB 25-pin connector" would have a succesful hit 3 down