Switch PLANET IGS-501T

Hardware 
Hardware Version 4
Copper Ports 5 x 10/100/1000Base-T RJ45 TP auto-MDI/MDI-X, auto-negotiation
Connector Removable 6-pin terminal block
Pin 1/2 for Power 1; Pin 3/4 for fault alarm; Pin 5/6 for Power 2