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MITS 88 SIOB Serial-TT, An Single Serial I/O Port S-100Board For the Altair 8800

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$836.08 $983.62

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MITS 88 SIOB Serial-TT, An Single Serial I/O Port S-100Board For the Altair 8800

 

In perfect condition ! 
Sell as is due its age ! 
 
 
     The board was designed around a SMC 2502 UART chip.  Baud rate and address selection was selected by jumper wires on the board.  There were 3 variations of the board. The “88-SIO A” had standard RS-232 signal levels, the “88-SIO B” and “88-SIO C” had TTL level inputs slightly different (see manual below).
 
    The board was often used in those early days with Teletype Corporation’s ASR33 “Teletype”. Later versions of the ASR33 had an RS-232 hookup option but earlier machines relied on a 20mA current loop connection.  See here for some issues using the latter.
 
    The manual for this board (with code examples in octal!) can be obtained in the S100 Computers site.
 
    Often this board was used with a “modem” board that MITS supplied to read and write data to a cassette.  This was called the MITS 88-ACR Board.
    

 

 

Shipping :

Europe : The price is for Air Priority Shipping with tracking number – takes about 8 – 15 working days !

USA and other Countries : The price is for Air Shipping with tracking number – takes about 15 – 25 working days !

Shipping Information:

Every Item is carefully packed and put in special box or special envelope for that use. We use our Bulgarian Post Services to send The Items Abroad. They are very reliable and good working. Every Item We send has an Tracking Number and can be tracked all over the World.

Return Policy Details:

We Accept Money Back and Replacement. The Important thing is the Buyer to be satisfied ! Please if you have any questions feel free to ask us. We will answer them As soon as we can. Wish you all best from Bulgaria !

Feedback :

Dear Customers, the Computer Parts we sell are about 20 years old. We test them twice – one time before the listing and one after the Item is Sold. We packed them with anti-static bags and put them in boxes.
Please if you have any issues with the parts when you test them contact us before leaving an feedback and We will do everything to help you !

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