I will make a simple small PCB populated with 180ohms and 390ohm resistors as shown in the pdf file. I plan to place the PCB on the back side of the backplane with the help of the wire wrap pins.> so...the termination is required?
Termination is used to damp the reflection of signals on the end of a bus, otherwise, it bounces back and messes with the emitted signal. As I remember this effect is particularly strong if the travel time of the signal is shorter than it's rising and lowering times.
This means than for one-meter (~yard) length, the edge times should be (roughly) slower than 5 nanoseconds as electricity travels at ~200.000km/sec.
But in TTL signals, edge times are at ~5nanoseconds, so there is a need for resistors.
(sorry for my broken English)
It seems no termination is required for C and D slots ??? Can I add terminators to both AB and CD.