[sebhc] H8 optoisolators - aka: disk transfer program

[Dwight K. Elvey]

>From: "Steve Thatcher" <melamy at earthlink.net>

>specsmanship is certainly a problem. Different manfuacturers will spec the same 
---snip---
>
>By the way, did Heath use 1488 and 1489 chips for the RS232 along with the 
optoisolators?
>
>best regards, Steve
>
---snip---

 They only used the optos on the H8-5 without any 1488/89's.
On the H8-4 they used a more traditional interface.
Dwight


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