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Unclear point about the connections on PCB

Views: 2050

#88905

Unclear point about the connections on PCB | 7 February, 2023

Greetings,

I have a card that I want do the design and get the gerber. I believe the connection ports on the left are RS232.

On the other side of the card the connection lines are clear, what I mean is I can easily see the which line goes from where to where.

But on the side that I have attached, I didnt understand the thick golden line. What is the purpose of it and what is the meaning of making it one thick line combining all the lines between left and right side ?

Any help would be appreciated:)

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#88907

Unclear point about the connections on PCB | 7 February, 2023

To me it looks like grounding.

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#88912

Unclear point about the connections on PCB | 7 February, 2023

is there any convenient way to understand which pins are connected on RS232 without removing the connectors?

thanks for the reply @MagyarT

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#88922

Unclear point about the connections on PCB | 8 February, 2023

This is the normal way. https://www.usconverters.com/index.php?main_page=page&id=61&chapter=0

Yours could be non-standard.

My memory had said, 2 to 3 and 3 to 2 and 7 to 7. But other pins are assigned in the standard. I don't know if all are always needed.

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#88923

Unclear point about the connections on PCB | 8 February, 2023

5 to 5 :) 7 is ground in DB-25 version

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#88928

Unclear point about the connections on PCB | 9 February, 2023

Greetings all, I did some measuring and found out that, thick golden line connects metal cases around RS232 pins (plaese check the new picture I added) to only undermost row of 32 rows of DIN41612.

Btw, the connection port on the right is DIN41612 with 32rows and a+c columns are loaded. I still didnt get the idea why they did it as one thick line looks like connects to 5*2=10 pins but it actually connects to 2 (32-a and 32-c). Should I do the same in my design ?

Thanks in advance.

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#88929

Unclear point about the connections on PCB | 9 February, 2023

Take a photo of the other side of the PCB (not the front). It doesn't have to be RS232 at all - the connector is very popular.

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#88930

Unclear point about the connections on PCB | 9 February, 2023

Sorry for not sharing all at once.

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#88931

Unclear point about the connections on PCB | 9 February, 2023

Also didnt understand the jump from the 6th pin of the 2nd connector on the right side.

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#88932

Unclear point about the connections on PCB | 9 February, 2023

This is "full" RS-232 port:

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#88938

Unclear point about the connections on PCB | 9 February, 2023

Sorry Michal I didnt get that. Do you think that they can be something else other than RS232?

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#88940

Unclear point about the connections on PCB | 10 February, 2023

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#88952

Unclear point about the connections on PCB | 13 February, 2023

Greetings all, Due to extraordinary conditions in my region, I couldn't reply earlier, sorry.

I have tried design the card. Any chance to check and criticise it?

Thanks in advance.

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