Navtel 9460 Protocol Analyzer info?

Joe wrote... Someday I'll pick up a "datascope" (aka serial protocol analyzer) cheap. I did a lot of serial communications programming in a prior life, and absolutely lived with a datascope. Not sure of the brand, but I remember is was blue. No keyboard in the real sense, but a data entry pad on the front. It was the most incredibly useful thing... you could program it to watch for a particular sequence of ascii characters, then start capturing data. One button would flip the display between ascii/ebcdic, hex, binary.. and it had a dual display mode where it showed transmit on top of the line and receive on the bottom of the line. It was a godsend. It had a breakout box built into it, could buffer to floppy, etc. It could also do sync & async. Anyways... one thing to watch out for. As I've been halfway mildly looking for one, I've noticed a lot of the units on ebay (being different brands than what I used) are often wired via an external module for only certain types of connections. Be careful that the one you're looking at may ONLY do V.35. It may not do something more useful like RS232. Jay