The RJMG163118101NR is a 10/100 BASE T Modular Jack with black thermoplastic polyester insulator and gold-plated over surface phosphor bronze contacts. The modular jack features nickel-plated copper alloy shield.
Green LED-1 (right side) and LED-2 (left side)
4 x 75R Resistors, 1000pF (2kV) transmit shunt choke