Communications node
A communications node
A communications node was a technological piece of the subspace communication network aboard an Intrepid-class starship.
In 2374, Seven of Nine identified such a node though her ocular implant while working in a Jefferies tube in engineering. She accessed the node 59S47B and was able to send a partial signal to the Borg Collective by using the subspace transmitter before Kes disabled her. (VOY: "The Gift")