[rescue] 10base2 Cable

Doug McIntyre merlyn at geeks.org
Sun Apr 7 01:59:55 EDT 2024


On Sun, Apr 07, 2024 at 12:29:04AM -0500, Lionel Peterson via rescue wrote:
> Seems to me a BNC male to BNC male cable should work, since you only have two nodes, right? (Decstation to hub?)
> 
> If that doesn't work, then add the Ts and terminators. I guess I'm thinking it's like SCSI - you can do a straight controller to drive connection, but when you start adding more drives to the chain you have to add termination...


No, you needed the terminators. 10-Base-2 generally didn't work
without the terminators on each end. If it did, it would be extremely poor signal,
barely anything getting through. 


(And even with a two device SCSI, you still needed to terminate each
end of the bus. But many SCSI HBAs had switchable terminators on their
end, And you _may_ have gotten away with it if you had the HBA
terminator switched in (ie. the default), but the other end of the Bus
was left dangling. But this was NOT best practice, you wanted to make
sure both ends of the SCSI bus were terminated for best performance.





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