link-up
/ˈlɪŋkʌp/noun
1- an instance of two or more people or things connecting or joining（人与人之间的）联系; （物与物之间的）连接。
1.1
- a connection enabling two or more people or machines to communicate with each other会合; 连线：
a live satellite link-up.
现场直播卫星连线。