Hi Drew,
 It's a Yamaha P90 digi piano... the last of the pre USB models... MIDI DIN In and Out, and I just looked; No "Thru". It has an additional old style PS2(?) connector for a serial connection to a PC.
 
 It has nice weighted keys and it has a very nice, continuous input sustain pedal/function.
 
 I want to add the other two pedals so they can talk to Synthogy Ivory.
 
 best regards,
mike
 
 

Thanks Dave.
 
I'm ready to go find a pedal device now. :-)
 
Thanks everyone!
 

Sorry I was not clear and what I was referring to was an armed midi track not the actual synth. I'll edit that so as not to leave wrong info laying around for history to dig up... And that is a good trick to insert 2 midi tracks and assign the output to the same synth.