HELP REPLACING A CEILING BATTEN HOLDER

I have to replace an existing batten holder type ceiling fitting as the lamp holder crumbled away whilst changing a bulb ! got a similar holder hoping to replicate the connections . undid the original existing batten holder to find that it has different connections (there are three connections directly on the lamp holder) ! the original one has four cables coming in with each having a red and a black wire. all the reds are twisted together and connected on one terminal . three black cables are twisted and connected on a second terminal and one black wire is connected on the third terminal.
The new holder has a base plate with terminals marked loop, n and l and earth -- so the question is how do i make the connections ?
any advice greatfully received
thank you

Were there definatly THREE blacks twisted together on your existing fitting?

Could you recheck this? I would normally expect there to be two black wires together.

OP stated 4 cables. Therefore 3 neutrals and one switched return.

OP - put the three blacks that were twisted together in the neutral bar - the blue of the lampholder may already be connected to it. Its the bar with three holes on one end. The four reds to the centre "Loop" terminal (again, has three holes) and the one solitary black to the live connection to the lamp. That will be the end bar with 2 holes.

Obviously ensure the circuit is dead before you work on it.

thank you for the info David. I have light !!