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Original Usenet message from de.alt.rec.ascii-art, 11 Jun 2007.
Re: Langfristige Vorschlaege zum Erhalt von dara-a

Re: Langfristige Vorschlaege zum Erhalt von dara-a

On 2007-06-11, Stefan Ram <ra...@zedat.fu-berlin.de> wrote:
>       ASCII-art zur Veranschaulichung technischer
>       oder wissenschaftlicher Sachverhalte

Da h�tte ich vielleicht etwas. Einen *einfachen* Pegelwandler den ich
gebaut habe um auf die Konsole meiner Fritzbox (DSL-Router) zu kommen:

Pegelwandler f�r FritzBox
=========================


                                    ^ + 12 V
                                    |
                                    |
                                  -----
                                  |   |
                                  |   |
                        4,7 kOhm  |   |
                                  |   |
                                  -----
                                    |
                                    *--------o Pin 2 DSub
                                    |
                                   /
                                | /
         |---------|            |/
TxD o----| 10 kOhm |----*-------|\  BC 548C
         |---------|    |       | \
                        |       |  V
                      -----        | 
                      |   |       ---  
                      |   |
            4,7 kOhm  |   | 
                      |   |
                      -----
                        |
                        |
                       ---

3,3 V o----------                          *----o Pin 5 DSub
                |                          |
                |                          |
              -----                       ---
              |   |
              |   | 2,2 kOhm
              |   | 
              |   |
              -----
                |
                |
RxD   o---------*--
                   \  |
                    \ |         |---------|
                     \|-----*---| 15 kOhm |-----o Pin 3 DSub
           BC 548C   /|     |   |---------|
                    / |     |
                   V        |
                   |      -----
                  ---     |   |
                          |   |  10 kOhm
GND   o--*                |   |
         |                |   |
         |                -----
        ---                 |
                            |
                          -----


Gr��e
  Dieter

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From: "Dieter R." <use...@d-ra.ath.cx>
Newsgroups: de.alt.rec.ascii-art
Subject: Re: Langfristige Vorschlaege zum Erhalt von dara-a
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Date: Mon, 11 Jun 2007 16:21:51 +0000 (UTC)
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