OK Guys, tell me one thing !?!
With 10 Mbps Ethernet chip going at around 6 or 8 dollars like
the new Crystal Semiconductor one that makes possible a board
that is more performant than a 3COM '09 for sub 20$ prices.
Why would any ISDN TA manufacturer build an Internet PC
ISA card that would need a high-speed serial port.
What are the dis-advantages of a PC seeing a TA as
a nic instead of a serial port ?
How important is it to be synchroneous in this packetized world ?
Can you do synchrone over an Ethernet bus ?
How about just forgetting on an unstable software driven
interface and just build on top of a 10 year old and
stable NDIS/PKT/ODI industry that ha jut be quite
happily living with it.
Lemme guess: BOM of a ISA-based internal TA that supports
10$ for the PCB
10$ for the Crystal Ethernet Chip
50$ for a 68E356
25$ for all the code
20$ for assembling
Looks like a 199$ retail price to me ;) Why pay for a Gandalf
5250i or a P50 at 1000$