27 Apr
2005
27 Apr
'05
11:18 a.m.
it is possible to build them with just 50 ohm thin
coax soldered to 0.1
connectors?
or are they tightly impedance dependent? Are there resistors on the drive
ends?
I assume that it takes 2 coax cables per drive (in/out) - thus 4
connections
The standard SDI cables we have for a KDA50 are made of a single 32-way
BERG type plug that breaks out into 4 8-way separate cables. These
terminate in VAX bulkhead connectors, and even though it was only last
week that I set up an SDI disk system I can't remember if the bulkhead
connectors can be removed to allow you to plug the 8-way cable ends
directly into a drive :o\
If not you need 3 cables to get the pinouts correctly aligned; typically
you had the KDA50 -> bulkhead then the 'liquorish' flat cable to the drive
housing/cabinet, then another bulkhead -> drive connection that was
internal to the housing/cabinet.
I don't have pinouts but it should be fairly easy to make something I
would've thought.
--
adrian/witchy
Binary Dinosaurs creator/curator
www.binarydinosaurs.co.uk - the UKs biggest home computer collection?