A desktop must plug into the wall jack that accepts the wider eight-position connector, not the narrower telephone plug. Which connector is that?
Select an answer to reveal the explanation.
Short Explanation
The desktop plug is the wider one with eight contacts, not the little phone plug. You use RJ45. The telephone plug, a coax thread, and a serial connector do not match that wall jack.
Full Explanation
RJ45 is the eight-position connector used for twisted-pair Ethernet, and it is wider than the telephone plug. The desktop jack that rejects the narrower phone plug is RJ45. RJ11 is the narrower telephone connector. Calling it the wider eight-position plug swaps the two. An F-type connector threads onto coaxial cable. It is not an eight-position plug. DB9 is a serial connector. It does not snap into an Ethernet wall jack. Exam caveat: an RJ11 plug can be forced into an RJ45 jack and damage the outer contacts. If the plug feels small, stop. Operational check: seat an RJ45 patch cable, confirm it clicks, and confirm the link light comes on. Listen for the click and confirm the link light. Do not force a telephone plug into the jack. Record the result on the ticket before you close the call. Retire any telephone cable that was forced into the data jack.