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- Message-ID: <IBM7171%93012711155710@VM.TCS.TULANE.EDU>
- Newsgroups: bit.listserv.ibm7171
- Date: Wed, 27 Jan 1993 09:05:46 PST
- Sender: Protocol Converter list <IBM7171@TCSVM.BITNET>
- From: "Mike Friedman (510) 642-1410" <SPGMNF@UCBCMSA.BITNET>
- Subject: Re: Dialup Problems
- In-Reply-To: Message of Tue,
- 26 Jan 1993 08:51:48 EDT from <BHART@KENTVM.KENT.E DU>
- Lines: 26
-
- On Tue, 26 Jan 1993 08:51:48 EDT Bob Hart said:
- >
- >User's using higher than 2400 baud are reporting that after the
- >'connect' msg is received, the "TERMINAL TYPE:" prompt fails to appear
- >60-80% of the time after hitting <CR>. This also happens to a
- >lesser degree at 2400 sometimes.
- >
- There is a field in NV-RAM, at DC00:02F4, which specifies the time in
- milliseconds to delay before reading the first carriage return (used for
- determining baud rate). Years ago, when I first installed my 7171's, I
- discovered that if this value was too small or too large, the terminal-type
- prompt would not always get through. I somehow settled on the value 3000ms
- (3 seconds), which has been working all this time. Our 7171 ports are attached
- to a Develcon port selector, to which the users' terminals connect via twisted
- pair and modems.
-
- To change the value to 3 seconds, issue this 7171 Operator Maintenance command:
-
- S DC00:02F4 B80B
-
- Of course, you may require a different value in your environment.
-
- (Note: The 7171 stores full-word (two byte) values in byte-reversed order.
- So, B80B = x'0BB8' = 3000 decimal).
-
- I hope this helps.
-