Bittree B48DC-NNSST/E3 M2OU12L is a 2RU 2x24 Long-Frame Audio Patchbay with Front Selectable TRS, 3-Pin ELCO rear interface and Non-Normal/Switched grounds.
Patchbays with switched grounds feature an additional switching contact in every jack. Grounds are lifted when patching, ensuring a proper grounding scheme is maintained, and ground loops, or earth loops, are avoided.