I remember now. Those are all DNP. The two caps are in parallel with the feedback resistors for the summing amp. You could put something very small there (2pF) if you noticed any ringing. Or something large there if you wanted to intentionally soften the outputs (turning it into a kind of bandpass filter almost.) The extra resistor placement was for adaptation as a replacement board for an original Sandin IP system, where I/Os were 75 ohm driven and terminated. So I’m guessing it’s a gain setting resistor for the output (to drive at 75 ohms, you would want 2X gain.)
I think we’re good.