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What changes to make to the DC502 to add option 7 ?


Attilio
 

greetings to all,
I have the schematic of the option 7 board for the DC508A, but I think it can also be adapted for the DC502, the problem is that I don't know what are the changes to be made to the DC502 and what are the connections to be made between the board of the option 7 and the DC502.
You have documentation on this and / or advice.

Thanks for attention
-- Cheers
Attilio


Attilio
 

Greetings to all,
I looked at option 7 and its connections with the DC508A counter and I am only interested in the COUNT line connection on the DC502 and the negated LATCH line on the DC502.
I noticed that the LATCH line is the same as the rear 19B output (DATA GOOD) and I could connect to that by inverting the signal to get a negated LATCH line.
But for the COUNT line I don't know where to connect on the DC502.

Thanks for your attention
-- Cheers
Attilio