The "breastplate" white is held by a screw located behind the small paper label. We can mount the socket in the housing and add the plastron at the last moment.
The pairs in LSA plug connectors, 2 A and B standards are displayed. Just put the right colors opposite.
For those like me will come two single strands in a cable Batibox 67mm wide and 40mm deep:
Know one position allows to work without cables folded too. Turn the box bati 90 °, move the screws and do well happen each cable in a separate sheath.