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The Solution for Seagate 7200.11 HDDs

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#4776
mcsoba

mcsoba
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really
the other side of the board,,but this a bit erased I can identify.....

VCC = CTS

DCD = Data Carrier Detect = GND

DSR = Data Set Ready = RXD

RI = Ring Indicator = DTR

RTS = Request To Send = TXD

----------------------------------------------------

------------------------------------------------------

From Adapter (TX) to >>> RX (on Seagate)

From Adapter (RX) to >>> TX (on Seagate)

 

I can connect the powersupply PC Direct on HD???

okey???

--------------------------------------------------------

---------------------------------------------------------
I purchased one adapter RS232 to TLL female
waiting for the delivery....

 

I can connect directly the adapter to the PC male??,,or need to use a cable nullmodem???




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#4777
jaclaz

jaclaz

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From Adapter (TX) to >>> RX (on Seagate)
From Adapter (RX) to >>> TX (on Seagate)

AND From Adapter (GND) to >>> GND (on Seagate)
That would be READ-ME-FIRST point #7
http://www.msfn.org/...-read-me-first/
and FGA's #4 and #7:
http://www.msfn.org/...-720011-drives/

 


I can connect the powersupply PC Direct on HD???
okey???

Sure. :)
 

I purchased one adapter RS232 to TLL female
waiting for the delivery....
 
I can connect directly the adapter to the PC male??,,or need to use a cable nullmodem???

The generic idea is that the more links you put into a chain the more probable it is that one of the links is weaker of the other (or if you prefer that something goes wrong).

It is of course "better" if you plug that RS232-to-TTL converter directly in the port of your PC, as you remove a link from the chain, in any case you DO NOT want a null-modem cable (which is crosslinked):
http://en.wikipedia....wiki/Null_modem
you want - in case - a plain RS-232 extension cable.

The general idea is the following, you are using a serial console (or Terminal program) in the OS, so a direct RS-232 to TTL is preferred because the data goes like this:

  1. Serial Port
  2. TTL converter
  3. SHORT piece of cable
  4. Device (your Seagate disk)

 

 

(and back)

 

The above is "better" (or "shorter" if you prefer) than:

 

  1. Serial Port
  2. Serial cable
  3. TTL converter
  4. SHORT piece of cable
  5. Device (your Seagate disk)

(and back)

 

And possibly even better than:

  1. Virtual Serial port (or if you prefer Serial port simulated through a software driver) 
  2. USB port
  3. USB to TTL adapter
  4. SHORT piece of cable
  5. Device (your Segate disk)

(and back)

 

And - to repeat myself - GROUNDING together all devices involved is ALWAYS a good idea.

 

jaclaz

 



#4778
mcsoba

mcsoba
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Tkss ...

 

yes RS-232 extension cable,,i followed this source Wikipedia...
after Christmas I will do missing now TORX6 ...

merry christmas to all
...






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