bucko
Active Member
This is my latest revision to the M1 Gold layout project (Rev 3) for my HA build. Some of you requested I publish my latest design.
M1 Gold Rev 3
Comments welcome.......
M1 Gold Rev 3
Comments welcome.......
Comments welcome.......
I have not shown my A/C wall warts in the diagram for the sake of readability. All the related board requiring A/C power will have the wall warts. I plan to mount power strips for the wall warts and the power strips will plug into a line conditioner/transformer.Comments welcome.......
How are you powering/charging the batteries on the two power boards? Also it looks like you have those on the data bus connections, hopefully someone else can chime in, I believe the negatives all will need to be common..
Do I see 14 speakers listed? thats alot! and as noted you need to watch the combined impedance.
I have not shown my A/C wall warts in the diagram for the sake of readability. All the related board requiring A/C power will have the wall warts. I plan to mount power strips for the wall warts and the power strips will plug into a line conditioner/transformer.Comments welcome.......
How are you powering/charging the batteries on the two power boards? Also it looks like you have those on the data bus connections, hopefully someone else can chime in, I believe the negatives all will need to be common..
Do I see 14 speakers listed? thats alot! and as noted you need to watch the combined impedance.
Actually, I can have the negatives common via a terminal strip. But to clarify, are you saying that all negative power leads should be common on all the components? So that essentially, both power supply negatives are common to all the other components in the system? This part I am not 100% clear on.
My initial thinking was that if they were separated and 1 power supply should fail, then I would still have part of the system still functioning. Conversely, if they were all common and 1 should fail, wouldn't the remaining one overload? Please clarify this for me.
Speakers. yes I have many. My idea is also to utilize them for the ELK alarm sirens as well. I figure the audio coverage would make it very uncomfortable for any intruder to stand for long.
Thanks
If some sections of the system have a separate power supply/battery then you don't want to connect the +VKP connection of the data bus to these sections. You do want to connect the other three connections. The NEG connection is your common ground that needs to connect all parts of the system.
If some sections of the system have a separate power supply/battery then you don't want to connect the +VKP connection of the data bus to these sections. You do want to connect the other three connections. The NEG connection is your common ground that needs to connect all parts of the system.
So are you saying that some connections are wrong?
If some sections of the system have a separate power supply/battery then you don't want to connect the +VKP connection of the data bus to these sections. You do want to connect the other three connections. The NEG connection is your common ground that needs to connect all parts of the system.
So are you saying that some connections are wrong?
Well it's a little hard to tell exactly what connections are in use from his diagram.
But (usually) you don't want to connect the + outputs of two (or more) power supplies together. If you have a board that connects to the data bus and the +VPK connection is used, then the board will be getting power from the data bus. If you have a local power supply powering this board you don't want to the +VPK line of the data bus connected to this board - just the A, B and NEG. The A & B are your data lines and the NEG is your common (ground).
Ok federick, stay with me here. In his diagram, He had the M1DBH HUB connect to the data bus and +VPK using four wires. This means that the M1DBH Hub is getting power from the data bus. Correct? Secondly, he has the input expander (M1XIN) connected to the P212S and the P212s has its own local power supply, then he further use a wire to connect the four pins connector (A,B,NEG,M) from the p212s to the M1DBH HUB. Based on your explanation, this is wrong since the p212S has a local power supply, then the input expander should get it +VPK from the P212s and only three wires should be running from the P212s to the hub (thus eliminating the +VPK connection). Am I right? I know this is kinda confusing I will try to load an illustration to simply my question. Thanks
bucko, I was looking at your wiring. You only had three wires (+12, A, NEG) running from your M1XIN to the M1DBH hub. I thought you need all four wires running to the HUB? Did you overlook this?
Ok federick, stay with me here. In his diagram, He had the M1DBH HUB connect to the data bus and +VPK using four wires. This means that the M1DBH Hub is getting power from the data bus. Correct? Secondly, he has the input expander (M1XIN) connected to the P212S and the P212s has its own local power supply, then he further use a wire to connect the four pins connector (A,B,NEG,M) from the p212s to the M1DBH HUB. Based on your explanation, this is wrong since the p212S has a local power supply, then the input expander should get it +VPK from the P212s and only three wires should be running from the P212s to the hub (thus eliminating the +VPK connection). Am I right? I know this is kinda confusing I will try to load an illustration to simply my question. Thanks
If he has it connected as you describe then it is incorrect. The M1XIN (getting power from a local power supply) should not have the +VKP data bus connection - just the A, B and NEG connections.
This is an excerpt from the P212S manual:
* * Red Data Bus Wire - Positive (+): This wire is not actually needed as the P212S is a power supply. An isolated screw terminal
marked "Spare" is provided for parking (terminating) this wire or for splicing with another cable if the bus is continuing on. The
important point is that the P212S ONLY NEEDS THREE (3) connections to the M1 Data Bus, Negative (-), Data A, and Data B.
CAUTION: DO NOT connect the Positive (+) wires of multiple power supplies together! It is OK to connect all Negative (-)
wires together, as this will assure the entire system has a common reference to Negative.
In my system, the +VPK data bus connection from the main enclosure to all of the remote enclosures (which each have their own local power supply) is ONLY used to control an ELK relay (in the remote enclosure) that controls the local power supply. When I turn off the power at the main enclosure, the relay in each remote enclosures disconnects the local power supply, shutting down all parts of the system. This was implemented prior to the introduction of the P212S which would also allow shutting down the remote power supplies, in a slightly different fashion.