Actually my configuration is as follows:

PCB9 --> RJ11--> Max202---->Pic18F252

On going into standby, the RX line (into the PIC) stays at 5v with the execption of a 5ms +/- pulse as the computer shuts down.

Now on the way up, as soon as I hit the space bar to wake up the computer, it generates a 100ms pulse (H-L-H). The framing error happens here and interestingly not on the way down.

The line is never "floating" since it's being driven by the max202


/chris'