Hi there

David Lord wrote:

> I saw it as CTS on brown and RI on Orange

Correct.

> All refclocks docs I've checked, by no means all, expect serial
> data on RxD.

Rewiring the plug might help;

Brown and Orange probably have opposite polarity;

     +-+       +-+    + 12 V
     | |       | |
  ---+ +-------+ +--- - 12 V

  ---+ +-------+ +--- + 12 V
     | |       | |
     +-+       +-+    - 12 V

    >   < 0.1 or 0.2 seconds

     <--------> 1 or 2 seconds

So the thing to do is to connect the positive going pulse to RXD (2).
This will probably work with the following NTPD setting;

server 127.127.8.0 mode 5
fudge 127.127.8.0 time1 0.220 refid DCF77

After a few minutes 'ntpq -p' should yield something like;

remote         refid   st t when poll reach   delay   offset  jitter
=====================================================================
+GENERIC(0)   .DCF7.   0  l   61   64 377     0.000   0.151   0.002


Regards
Rob
-- 
Nowadays people know the price of everything, and the value of nothing
Oscar Wilde

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