Hi all, I just moved and got 2 Motorola DCH3200 boxes from Comcast. I noticed that they have USB, IEEE 1394 (not sure if they're active) and what appears to be a mini-jack plug marked serial. It looks very similar to the one on my S2 TiVos. Does anyone know if I need a special cable to connect the two mini-jack type serial ports to each other? Thanks!