Thanks Peder for the info, but no new boxes needed, just a little software modification for the existing webswitch. Implementing of a settable timer to generate switching pulses of selectable duration, that's what I'm asking for. Pulses should be negative (switch connected device off for a few seconds and go back to "on" status - eg for reset of a router) or positive switching (switch on for a few seconds, then switch off again - remote control of pulse switches).
73 de Mark, HB9AZT