Tektrionix VAXBI board and DC100 training tapes?

[Antonio Carlini]

On 19/09/2019 22:06, Paul Koning via cctalk wrote:
>
>> On Sep 19, 2019, at 3:45 PM, Mattis Lind via cctalk <cctalk at classiccmp.org> wrote:
>>
>> An ex DEC engineer offloaded some stuff that he had found in his attic.
>> ...
>> Then there were some DC100 tapes in a huge heap of TU58 diagnostic tapes
>> for VAX-11/730 and  VAX-11/750 that looked different.
>>
>> https://i.imgur.com/6n8yCxd.jpg?1
>>
>> They were marked "BI-SYNC TRAINING TAPE" and "ASYNC TRAINING TAPE
>> TAP-895-103-1.0 3.04"
> BI-SYNC is an odd spelling, but I would guess it means "BISYNC", the ancient communication protocol mostly used by IBM.  With the hyphen it sounds like it's related to BI, but I suspect that's a red herring.
>
> 	paul
>

It must be BISYNC - DEC had many bisync comms products over the years.


VAXBI stuff on TU58 doesn't make very much sense to me !


Antonio



-- 
Antonio Carlini
antonio at acarlini.com