After some experimenting I have two new items running via com1 of the remote-rig boxes (old mark1-model, but should also work with the recent model):
Elecraft WN2-Wattmeter: straight forward rs232-cable at control site, 0-modem-cable at remote(radio)-site
com1-settings: mode 3, 9600 Baud, 1 stop bit, no parity on both boxes
Easy Rotor Control Interface (for details about that excellent and cheap antenna rotor interface see
www.schmidt-alba.de): straight forward rs232-cable at control site, 0-modem-cable at remote(radio)-site, com1-settings: mode 3, 9600 Baud, 1 stop bit, no parity
To explain the basics in a few words:
both of the remote-rig boxes com1 act as dce (data communication equipment). dce and dte (data terminal equipment), e.g. a pc can be connected via straight forward RS-232-cable. To connect a dce to another dce, you need a 0-modem cable (at least pin 2 and 3 crossed). Most "radio amateur toys" like wattmeters, antenna rotors or a lot of transceivers are configured as dce. That's the reason why a straight forward cable is needed at the control site and a 0-modem cable is needed at the remote site.
Finally a working wattmeter to monitor a remote station and a good serial rotor interface for azimuth and elevation!
May be this is of interest for some users, saves hours of trying and soldering different cables
![Smiley :)](https://www.remoterig.com/forum/Smileys/default/smiley.gif)
73 and happy remoting de Mark, HB9AZT