RJ45S Jack
Now obsolete, RJ45S was an RJ standard for connecting a single data line, utilising a keyed 8P8C connector and a programming resistor, apparently used to correct signal levels. RJ45 (without the S) colloquially refers to the un-keyed 8P8C Ethernet connectors covered by the TIA-568-D.2 standard. While widely accepted as “standard”, no IEEE or TIA standards … Read more