[comp.sys.cbm] 1670 modem

BSJ100@psuvm.psu.edu (Broderick S. Jolley) (04/10/90)

Does anyone know how to check to see if your 1670 is operating correctly? I
have a 128, a 1670, and QuantumLink software from the back of a GEOS disk and I
cannot get the program to dial the number of QuantumLink. I have called in to
their service line, but they have done all they can. I hope the problem is in
the software and not the hardware. I believe it's in the hardware because the
program worked once before, actually twice in one night (just lucky, eh?).

Also, does anyone at Penn State have a copy of Kermit 128 or Desterm 128 that I
could get a copy of?

One last thing, does anyone know the telephone number of the BBS that is in the
University Park/Stat College, PA area?
                                                      Thanx
                                                      Rick

roger@stretch.cs.mun.ca (Roger White) (09/20/90)

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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