Interface cases with snap-fixing covers with moulded in connector openings. Supplied with applicable mounting hardware.

PCB mounting types require custom made PCBs to mount the RJ11/45 or 90° connectors
Solder bucket types can be used directly with standard D connectors
Internal PCB board area

The abbreviation (CA) refers to Cable Attachment and (CC) refers to Captive Connector, which requires a PCB mounted connector. There is no back/side support for the connector, only a front retainer, so there has to be 88mm between the front of the connector flange and the back of the PCB to stop it sliding back, and it needs to be 35mm wide to locate it laterally.