[time-nuts] Meinberg DCF77 C51 - serial connection?

[Poul-Henning Kamp]

In message <1168635395.7585.35.camel at thor.hjemme>, Rune Magnussen writes:
>fre, 12 01 2007 kl. 17:40 +0000, skrev James R Miller:

>DCF77C51                        PC(9pol.)
>
>Pin 2  -->  RxD              ----      Pin 3  -->  TxD
>Pin 3  -->  TxD              ----      Pin 2  -->  RxD
>Pin 7  -->  GND              ----      Pin 5  -->  GND

>I use a standard modem cable (25 pin male / 9 pin female). 
>described pinout mean it is like a computer?

no, a standard modem cable would have 2-2 and 3-3 connections
instead of 2-3 and 3-2.

>Since I got the unit there has been trouble detecting the signal.

Make sure to avoid any nearby televisions, the 5th overtone of
the horizontal deflection is 78.125 kHz and can be a very strong
magnetic field.

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