registered jack
standardized telecommunication network interface, including connectors and wiring standards
en-GB/ˈɹɛd͡ʒɪstəd ˈd͡ʒæk/
en-US/ˈɹɛd͡ʒɪstɚd ˈd͡ʒæk/
standardized telecommunication network interface, including connectors and wiring standards