[time-nuts] Advice on 5370A vs 5370B differences please

Poul-Henning Kamp phk at phk.freebsd.dk
Sat Aug 29 10:51:55 UTC 2009


In message <72C46D68028C463EBDB775EE14FB9578 at LapTop>, "Roy Phillips" writes:
>Tim
>I have recently acquired a 5370B and find your comments of interest. So in 
>addition, what was the intention of designing the mother-board to have no 
>less than three additional (and in my case,unused) pcb slots following the 
>uP and Display interface, marked ROM, MEM(optional) and SERVICE(AID)

The backplane is the same as in the 5370A.

The SERVICE AID is mentioned in the manual, amongst other things it has
two D/A converters so you can watch the address bus on a X/Y scope.

The optional MEM I have not found any references to, but the 5370A might
have its ram there.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.




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