Path: utzoo!attcan!uunet!stretch.cs.mun.ca!roger
From: roger@stretch.cs.mun.ca (Roger White)
Newsgroups: comp.sys.cbm
Subject: 1670 modem
Message-ID: <1990Sep20.022207.10227@stretch.cs.mun.ca>
Date: 20 Sep 90 02:22:07 GMT
Sender: roger@stretch.cs.mun.ca (Roger White)
Distribution: na
Organization: CS Dept, Memorial University of Newfoundland
Lines: 33

I was looking through the 1670 manual and came across a few things that
aren't explained very well (at all!). Could someone please explain what each of 
the following is all about?

a) page 14, register settings. S16 Modem Self-test.
				0 Data Mode (no testing)
				1 Analog loopback

What does analog loopback do? It says a self test but it seems to do nothing.

b) page 70, DIP switch settings.
			  4 Data Terminal Ready
				DTR always on        		 	DOWN
				DTR normal, computer controls DTR	UP

What exactly does this mean? And how do you control it with the computer?
It also tends to do nothing when I change the setting.
 


If anybody has the answers could you please reply by either posting or
E-Mail. I am interested in what exactly I can do with these modes.
 
Roger.


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|                            | Roger White                                   |
| ...treat her like a lady,  | roger@stretch.mun.edu, roger@stretch.cs.mun.ca|
| and she will always bring  |-----------------------------------------------|
| you home -- Bones          | Memorial University of Newfoundland           |
|                            | St. John's, Newfoundland, Canada              |
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