1.Top Entry RJ11 PCB connector/Telephone socket/pcb jack with 2PIN or 4PIN 2.UL,RoHS, ... ISO9001-2000 Description:Top Entry RJ11 PCB connector/Telephone socket/pcb jack with 2PIN or 4PINNumber of ports: 1Number ... inch, 15u inch, 30u inch, 50u inch Top Entry 4p RJ12 Telephone PCB Jack/socket