<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by MindBender</i>
<br /><b>Breaking News: There is most definitely a difference between the Xanura SAIX module and the Marmitek AWM2.</b>
They use the same injection molds for the housing, but another color of plastic.
They even use the same PCB, but the SAIX module has an extra triac installed (ST Micro, BTA16, TO220 housing).
Both use a Microchip PIC processor for the intelligence, but the labels stuck to them have different numbers written on them: 70AC for the AWM2 and 70AB for the SAIX. Now usually these numbers are checksums, but that would either mean that there's only one bit different in both versions, or that it's a big coincidence (1:65536). There's probably a flag somewhere in the software specifying which unit it is, while all functionality is present.
I didn't check if I can read out its contents; PIC processors have internal security measures to prevent that, so I didn't even try. There are test pads on the back of the PCB and I'm sure the in-circuit-programming pins of the PIC are connected to some of them. These are probably used to program it.
The AWM2 unit uses a PIC16CE625, which is a 'one time programmable' chip. I didn't remove the label of the SAIX unit, but I assume the same processor is used.
<b>Photo of SAIX internals:</b>
[img]images/icon_paperclip.gif[/img] SAIX.JPG<br />26.83?KB
<b>Photo of AWM2 internals:</b>
[img]images/icon_paperclip.gif[/img] AWM2.JPG<br />26.9?KB
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">After wishing a new year to everybody on this forum site, I'd like to come back on this interesting post.
The picture don't let us see the characteristics of the relay each product is equipped with.
Does someone know how many switches the relays are able to ensure in each case (Marmitek and Eiton)?
In my case 100,000 would not be enough.

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