John, Thanks for info. Is that a TELCOM limit? The reason I ask is because when 
running virtual T with TS-DOS, I notice that the buffer can go to 255. Or at 
least the byte which holds the buffer size.


    On Monday, October 17, 2016 11:36 AM, John R. Hogerhuis <> 


On Mon, Oct 17, 2016 at 7:14 AM, Kurt McCullum <> wrote:

Even though the buffer is 256 bytes in size, TELCOM sends the XON/XOFF commands 
when the buffer is only slightly full, so I have had to block the sending of 
the data in small packets and check for XOFF.

The serial receive buffer is 64 bytes.
-- John. 


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