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Forum index » Electronix » Repair
Need cable pinout for Royal RC40 scale
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Jack Edin
electronics forum beginner


Joined: 21 Sep 2005
Posts: 2

PostPosted: Wed Sep 21, 2005 2:25 am    Post subject: Need cable pinout for Royal RC40 scale Reply with quote
I'm hoping somebody here HAS this scale, and more importantly has the
tools and skill set to probe it's cable for me.

The scale has a 9-pin DB9M. So a PC cable would be female-female.

It isn't straight through, nor did a null-model help.

It is non-standard!

Well they provide the wire, but I got mine without.

It is completely useless if I can't upload the new rates into the scale.

Anybody?

Help!

Thankx, in advance.

Jack
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Franc Zabkar
electronics forum Guru


Joined: 01 May 2005
Posts: 616

PostPosted: Thu Sep 22, 2005 5:02 am    Post subject: Re: Need cable pinout for Royal RC40 scale Reply with quote
On Tue, 20 Sep 2005 21:25:54 -0700, Jack Edin
<nospam@logicunlimited.com> put finger to keyboard and composed:

Quote:
I'm hoping somebody here HAS this scale, and more importantly has the
tools and skill set to probe it's cable for me.

The scale has a 9-pin DB9M. So a PC cable would be female-female.

It isn't straight through, nor did a null-model help.

It is non-standard!

Does the scale's interface look like RS232, or is it TTL? That is, do
the scale's pins produce voltage swings of +/-12V or 0-5V, or
something else? If RS232, which are the output pins, ie which pins are
held at logic high or logic low? Input pins will probably float at
close to 0V. Is pin 5 the scale's ground pin? Is any pin connected to
the scale's metalwork?

-- Franc Zabkar

Please remove one 'i' from my address when replying by email.
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