Ships quite often had two bridges, didn't they? The main bridge and (I think) the other one was called the 'battle bridge' or similar if the main bridge was damaged. I think the Enterprise in Star Trek had an arrangement like this as the main saucer bit could detach from the rest.

From a practical point of view - I guess the main bridge would be within the cruiser and the battlebridge would serve as the main bridge for the saucer as well as the battlebridge for the cruiser (while connected).