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Pawel Kulakowski

Apple Exp Card

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WOW!!  I haven't seen anything like that since the last visit from the Evil Mirror Universe...

 

 

The big IC is a Fairchild TR1602-B, which according to Google is an Asynchronous Receiver/Transmitter...

See PDF Page 18 of this Document:

http://bitsavers.trailing-edge.com/components/westernDigital/_dataBooks/1981_Western_Digital_Product_Handbook.pdf

 

 

MarkO

 

 

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Posted (edited)

It does look odd... I like the backwards silk screening... With MarkO's comment above I'd be going for some kind of networking. The hardware database has some 8 cards from Mountain... but not this thing... Did it get silk screen incorrectly or is it a clone? Things to wonder about...

 

Out of interest whats the screen say behind the connector on the top left? The one in the middle appears to be labeled cal..

Edited by Aunty Entity
More info

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15 hours ago, Pawel Kulakowski said:

Other connector J1 labeled "SIG IN"

I'll stick with my network or print sharing.  Some kind of serial daisy chain arrangement.

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