I think nobody is assuming that you can put a full blown backbone node which handles multiple terabit/s streams to other nodes lightminutes away into a small package.
The interesting question is what is the minimum size for a FTL node that connects a single local network with typical DSL speed (several megabits/s) to a close (1 lightsecond ? 1 lightminute ? even more ? less ?) full blown backbone node ?
The wiki seems to suggest that this minimum size is still "huge"... too large for converted cars, even too large for some spaceships.
The interesting question is what is the minimum size for a FTL node that connects a single local network with typical DSL speed (several megabits/s) to a close (1 lightsecond ? 1 lightminute ? even more ? less ?) full blown backbone node ?
The wiki seems to suggest that this minimum size is still "huge"... too large for converted cars, even too large for some spaceships.