B&W DM 602 S3 connection question

I bought a pair of used B&W DM 602 S3 and this is the first pair of speakers that i have owned that has 4 connection posts for possible bi-amping or bi-wiring.

Are the separate pairs of connectors supposed to be connected by a link? I don't have access to the owners manual since i bought the speakers used.

Do i just link both pairs together? or is it allright to use either one of the pairs without connecting them together?

Any help would be appreciated.