2 Aug
2005
2 Aug
'05
1:23 p.m.
-----Original Message-----
From: cctech-bounces at classiccmp.org
[mailto:cctech-bounces at classiccmp.org] On Behalf Of Tony Duell
Sent: Tuesday, August 02, 2005 1:56 PM
To: cctalk at classiccmp.org
Subject: Re: Analog modem emulator?
...
I have seen something like that. It essentially simulates a
telephone
> network.
I am surprised, but I have never seen a published schematic
for such a unit, neither in a magaxine or on the web. They
can't be _that_ complicated, surely?
-tony
I think because there are several different options on things like ring
detection - current loop vs. wink start, IIRC. Plus you might want to check
out the various dialing options, etc. If you were in the business of making
(or maybe servicing) modems you wanted to be able to simulate all possible
situations. If you are only trying to make a connection between two boxes in
some specific situation you would be correct.
Gil