[GreenKeys] Fw: [Bulk] Re: Acoustic Coupler

[Larry Tighe]

----- Original Message ----- 
From: "Larry Tighe" <larryradio at att.net>
To: <gfmurphy at earthlink.net>
Sent: Sunday, October 16, 2011 5:19 PM
Subject: Re: [Bulk] Re: [GreenKeys] Acoustic Coupler


> HI Jerry,
>
> I screwed up calling it a telex...it's a TWX.  It's a Model 33ASR running 
> at 20 ma.
>
> The loop keying device that should be with the AJ was not there so I'm 
> using a Black Box CL-51A.  That box has RS 232 in and out to key the loop 
> and when the KB keys the loop, it comes out of the Black Box as RS 232.
>
> Problem seems to be that the AJ acoustic coupler has a Molex connector 
> labeled DAA.  Nothing came with the machine to go into that.  There are 
> only 4 pins active on that Molex but, so far, I don't know what they're 
> for.
>
> I'm using a 181720 power supply that gives me 80 volts at 20 ma.  for the 
> Black Box to key for loop....works fine.
>
> So, I think the problems are narrowed down to DAA.
>
> lar