doubt about mesa card 7i76e

Good evening to everyone.
I almost finished wiring all the electronics for my new XYYZ router and I am in the middle of studying the card's manual.
So far my machine has 4 stepper motors but i am planning to add another 2 stepper in the future.

My doubt is about the power supply; I have purchased a 24 VDC powers supply for the card and i was thinking if I need at this stage (with 4 stepper motor) to power up TB3 or I can just power up TB1.

This is probably to most of you a stupid question but this part seems to me a bit unclear and please take into consideration that I am a very slow learner.
Another question is about the jumpers named W7 and W12 that in my case are both DOWN (in my understanding i don't need to enable power to some break board that I don't have) but my question arise when I saw I document in this web site that show how to wire this card and on the first page under jumpers, set up W7 up and W12 down..
So I suppose the set up is W7 UP due to the fact he has wired a break board (W7 control the power option on P1 and W12 control the power option on P2).
Who are P1 and P2 ?

Any help would be great.
Thanks in advance.
V.

PS I might leave this topic open because i am sure that some more doubts arise on the way.

1. You need to supply 24V to both TB1 (Field power) and TB3 (Ethernet/Logic power)
2. W7 and W12 don't matter if you are not using the 26 pin expansion connectors P1 or P2

This explains it

Thank you very much to all of you for your help.

PS Mr Rod, your tutorial is very very good, thanks

sibelius wrote:

PS Mr Rod, your tutorial is very very good, thanks

Thanks for your kind words.

Good evening everyone

I manage to wire the mesa card and set the Ethernet communication to ping the card.
So far so good.

Next step was to set the Pncconf Wizard for my machine, I m going to open a new topic for this.
Thanks again

Hi Rod, I would like to talk to you about our project with Mesa. Thanks

diam wrote:

Hi Rod, I would like to talk to you about our project with Mesa. Thanks

Sure, you can contact me via my web site here www.vmn.com.au/contact

Thank you, I wrote, I'm waiting for an answer