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- From: stritzi@Physik.TU-Muenchen.DE (Peer Stritzinger)
- Newsgroups: comp.unix.aix
- Subject: High-speed modem at built-in serial port (RS/6000)
- Keywords: modem rs/6000
- Message-ID: <stritzi.714925276@Physik.TU-Muenchen.DE>
- Date: 27 Aug 92 14:21:16 GMT
- Sender: news@news.lrz-muenchen.de (Mr. News)
- Organization: Leibniz-Rechenzentrum, Muenchen (Germany)
- Lines: 29
-
- I just connected two different modems (ZyXEL 1496E and Trailblazer T2000) to
- an RS520 and encountered the following problems:
-
- 1. Character loss
- When connecting the modem at 9600 or 19200 Bits/s, I get lots of character
- loss. The error-report tells me to reduce load (isn't too high) or choose a
- lower baud rate (9600 isn't too high, either). Is this normal?
- By the way, I've set up the modems for hardware handshaking, so why doesn't
- the RS/6000 just tell the modem to stop sending when it can't take the stuff
- from the line?
- A slip connection at 19200 over the same line, modem etc. doesn't produce
- this problem. Why?
-
- 2. DCD Handling
- There is only one device (/dev/tty1 in my case) which doesn't allow me to dial
- out until CD is high. So I told the modem to keep CD up all the time, but I
- do not get disconnected from cu when carrier drops.
- I'd like the CD line to be up only when carrier is detected and still be able
- to dial out?
-
- If 1. is a unsolvable problem, how are the experiences with intelligent
- serial adapters.
-
-
- --
- Peer Stritzinger
- Phone: +(49)8141-90613
- Fax: +(49)8141-95235
- Internet: stritzi@physik.tu-muenchen.de
-