Simulating old SAIX and SAX15 behavior using a SAIX12
Posted: Thu Apr 16, 2009 10:41 am
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
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