Subject: From: Date:

Re: [ECS] [Fwd: Lightning strike] Bill Walters Mon, 26 Apr 1999 22:51:39 -0500

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Thanks Joe - the IR-3 is the "IR Jukebox", or that's how it was
aparently marketed.  There are more than several of them in use on ECS
systems, as ECS supports it directly.  The IR-3 differs from the IR-100
in several ways:  3 input "plugs" in back of unit, 3/8" jack for 9 vdc,
RJ-11 for RS-232, and RJ-45 which provides connections to ground, IR
emitters 1-4, and IR-IN...  

Standard wooden base, red plastic transparent box....

I'd LOVE some info on what chip might be which...


Bill Walters


joerut@epix.net wrote:
> 
> Subject: Lightning strike
> Date: Mon, 26 Apr 1999 19:29:08 -0400
> From: joerut@epix.net
> To: wtwalters@hom.com
> 
> Hello
> 
> What exactly is the IR-3. I had a similar situation. Found that the
> surge traveled through my serial ports pretty much trashing them. As for
> the interfaces most serial devices go directly into some sort of driver
> chip. The older style go into a 1488 or 1489 RS-232 driver chip the
> newer style go into a MAX 232 chip to drive the serial ports. If you
> trace the signal into the two interfaces it will be the first chip the
> lines go into. I would suggest replacing them. the reason I was
> wondering about the IR-3 is because the IR master 100 has all the chip
> #'s taken off but I have a drawing on how that unit works if needed. If
> the power surge came from the power line I would look for a voltage
> regulator like a 7805 7812 or 7815 it probally smoked that. I do
> electronic repair for a living if all else fails I can check them for
> you before you trash them.
> 
> Joe Rut

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