ecg-p12x & dual power supplies

sysco

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Joined
Feb 25, 2012
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6
a little confused about hooking up 12 volts power supply to each bank on the board looked at the manual but still uncertain as what to do so the first power supply is hooked up to p13 ground and positive and the next power supply is hooked up to poo ground and positive I think this part is right? and the K1 is hooked up V1 - POSITIVE------ VO-and +5 are joined by a jumper and ground is ground my question is where does the positive V1 red wire come from and the ground also on the K1 thank you
 

bluzervic

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Dec 31, 2011
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Fremont, Calif.
I use 12vdc for this example below

1. place the P12x with the Ethernet connector facing towards you "RJ1"
2. locate the jumper "K1" on the left side

Depending on how "K1" is jumper-ed determines if your Board gets power by its self or from one of the top board PSU's
I jumper mine so the top board will supply the power for the board its self
To do so, jumper as follows:
1. jumper V+ to VI
2. jumper +5v to VO

P12x Ethernet should still be facing you "RJ1"

Supply board power to the top left(+12vdc, GND) part of the board.
This will power the left side top board and supply power to the board its self

I have never used 2 supplies, So the rest is not verified.

I am not sure if the left side and the right side of the top board have common GND's
You can check with a ohm meter before supplying power.

If you are using 2 different PSU's make sure your GNDS are shared between PSU's

The right side can get its +12vdc from the other PSU, however it will not power the P12x board its self

See this Video on you-tube for the 5 volt version with single power supply.
View: https://www.youtube.com/watch?v=JfzjHc9mHNA


There is a manual, I will try to locate it and put link here
 

sysco

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Joined
Feb 25, 2012
Messages
6
bluzervic thank you for your reply, can you tell me if I can use 12 strings of 2811's sharing 1 power supply or will it support more
 
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