PDP-11/35 FC?

First, what's the significance of the FC on the model number? Second, I went through chassis and here's a list of the cards in it. QED stands for Quickware Engineering & Designs. They made several of the cards in this one. Anyone have any info on them? H,Q,U stand for Hex-bus, Quad-bus and Uni-bus respectively. Anyone want to take a stab at id'ing these cards? Slot: Card: 4 M7231D H Data Path 7 CI M60 made by QED Q 9 90 CPU made by QED has DCJ11-AA IC Q 11 MS 95 made by QED H 15-16 M920 U 19-20 M920 U 16 M7254 Q 17 M7255 Q 18 M7256 Q 19 M7257 Q 22 M7762 H 23 Tektronix CL3 Date/Time Option Q 24 Datasystems DLP-11 Q Printer card? 27 M7228 Q 29 M7800 Q 31 M7800 Q 33 M7800 Q 36 M7911 Q 37 M7912 H 38 M7821 fits in single slot (#2) 38 M105 fits in single slot (#3) 38 M796 fits in single slot (#4) 38 M930 U bus terminator? installed in bottom two slots 39 M795 installed u[pside down. Is this correct? Joe