What the hybrid pinout means for your cable assembly
The TE Connectivity 2178148-1 is a CLOUDSPLITTER-series modular plug that carries a hybrid pinout: 8p8c (RJ45) for the data pair plus two dedicated power contacts. That 8p8c + 2 Power arrangement means this single plug terminates both the Ethernet signal and the DC feed into one connector body — no separate power jack needed at the device end. The translucent clear polycarbonate housing lets you inspect the termination through the shell, which saves a continuity check step when you're building harnesses in the field. It's rated for Cat5e, so the twisted pairs are good for 100 MHz signaling; don't spec it for a Cat6 run expecting 250 MHz performance.
Wire gauge and contact plating — what to match before you crimp
The plug accepts 24-26 AWG stranded round cable, which covers the common patch-cord and structured-cabling diameters. The unshielded shell keeps the assembly light and flexible; if you need EMI protection, this isn't the plug for that run.