| Posted: Saturday Oct 17th, 2020 06:49 pm |
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1st Post |
Tas
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I have old board which I was trying to replace because LP51,LP52 have blown and I figured I might as well upgrade the board instead of messing about with soldering. However half-way through I noticed that the DP connection for MIC/Voice is not present on the new board (or I can't see it). The old board has a door phone module connected to a Fermax door entry system. Is there a way to connect the new board or is there something else I need to do?
Many thanks,Tas
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| Posted: Sunday Oct 18th, 2020 02:13 am |
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2nd Post |
slychiu
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| Joined: | Saturday Apr 29th, 2006 |
| Location: | Singapore |
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On CM9001, the DSI01 plug in submodule includes the Ringer, Door station Mic/Voice, and Local Telephone support circuits, see http://www.cytech.biz/product_details.php?item_id=498 which includes the DSI01 manual download.
This offloads the circuits and makes the CM9001 lower cost for those who do not need these features
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| Posted: Wednesday Oct 21st, 2020 08:19 am |
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3rd Post |
Tas
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Thanks, that explains the differences. How can I find my exact board model. On the DSI01 page on this forum the CM9001 board has a switch, K51, which needs to be set when installing the DSI01, however my board does not have this switch. I purchased the board just a couple of months ago.
Many thanks,
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| Posted: Thursday Oct 22nd, 2020 02:13 am |
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4th Post |
slychiu
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The board model is not printed in the PCB. The main visuakl difference CM9001 lacks the large heatsink and uses a DC Power supply instead of a transformer. The new power suppy is ligher and more efficient.
You can also find out the model by doing Scan for modules in Comfigurator
K51 is no longer needed. the manual should be corrected. It has been replaced by a 2 x shunt which is plugged in to the socket where the DSI01 should be plugged in, You have to remove the shunt in order to plug in DSI01.. If you do get DSI01, kepp that shunt i case you remove DSI01 on future
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| Posted: Thursday Oct 22nd, 2020 08:15 am |
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5th Post |
Tas
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Ok. I see the shunt now. Thank you for the explanation
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