Simulating old SAIX and SAX15 behavior using a SAIX12

[Lennart]

Hi all,

When Xanura still had the old SAIX module (not SAIX12), you could use a potential free contact to switch the internal SAIX 230V relay. You could, for instance, easily create a loop with a magnetic (door/mailbox/whatever)-contact (reed switch) and have the local relay switch in sync with the magnetic contact and/or have the SAIX send an X10 command.

Now, with the new SAIX12 module, this is not as easy, as its switching wire is 230V. One could use an IMX but that sometimes requires an extra module as it is lacking the local relay. Or one could use a SAX15 that has 2 potential free inputs (but not a local 230V relay).

Furthermore, sometimes you'd like to have it work the other way around: switch a potential free (or low voltage) contact using a Xanura module. One could again use the SAX15, which also has a local relay to switch low voltage circuits.

However, the SAX15 is more expensive than a new SAIX12 module. Furthermore, I like the versatility of using only SAIX12 modules instead of dedicated modules for each application.

So my questions (and I guess these are especially for Henk):

1) How could one use a SAIX12 to switch a low voltage circuit?

2) How could one switch the local SAIX12 relay using a potential free circuit?

For 1) the answer would probably be something like Conrad product 503981 as discusses here: http://www.domoticaforum.eu/topic.asp?TOPIC_ID=2429, but what other parts are required? Is 502839 not required as well? And what about a "vrijloopdiode"? And what are the differences between all these different relays that are available from Conrad?

Another option would be an IPPower, but sometimes that's overkill (for instance, when only one switch is required and no network cable is available).

Thanks!

Lennart

[Henk]

SAIX12 output - use a 230V relay in a holder and use the relay contacts - vrijloopdiode not required - mostly this diode will be used to protect the transistor.

SAIX12 input you may use sensors rated to handle 230V - like reed relay (see Conrad 230V reed relay) and also take care of good and safe isolation . Otherwise use a low voltage relay special in case of an active device with an open collector output - this will limit the risk of smoke ...

You may also look at non Xanura devices (Powerflash) - there are plug-in modules sending an X10 command after a contact closure and providing an closed contact by transmitting a X10 command.

Henk

[William.abbo]

Take a look at this: http://www.act-solutions.com/PCC/PCCSpecFrame.htm

[William.abbo]

And this: http://www.act-solutions.com/PCC/pdfs/P ... x_spec.pdf