Re: How to connect outbuilding
Posted by vysocan on
URL: http://ohs.356.s1.nabble.com/How-to-connect-outbuilding-tp322p325.html
Hello,
The board will need its own 12V power. Just ground wire should be connected from gateway RS485 port and twisted pair for A/B. The X on PCB is for 12V wire, but not connected internally.
Also I will have to first create the code for it, and test it. Already thinking about it, and how to reduce the traffic. Since the zones are scanned 4 times a second multiply by 9 zones, that is with headers 42bytes, then gateway ack 5 bytes. I'm bit worried about the traffic on the 19200 bit per second RS485 line. Or actually not about the traffic, but the congestion for other nodes. This will show how good I've implemented Carrier Sense Multiple Access
I've done some test previously, but this will be rather continuous data flow.
URL: http://ohs.356.s1.nabble.com/How-to-connect-outbuilding-tp322p325.html
Hello,
The board will need its own 12V power. Just ground wire should be connected from gateway RS485 port and twisted pair for A/B. The X on PCB is for 12V wire, but not connected internally.
Also I will have to first create the code for it, and test it. Already thinking about it, and how to reduce the traffic. Since the zones are scanned 4 times a second multiply by 9 zones, that is with headers 42bytes, then gateway ack 5 bytes. I'm bit worried about the traffic on the 19200 bit per second RS485 line. Or actually not about the traffic, but the congestion for other nodes. This will show how good I've implemented Carrier Sense Multiple Access
I've done some test previously, but this will be rather continuous data flow.
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