Renamed all seismometer's channel names last week, please refer here.
For example, channels of the trillium120QA are changed from K1:PEM-{Place}_SEIS_{NS/WE/Z_SENSINF_OUT_DQ to K1:PEM-{Place}_GND_TR120Q_{X/Y/Z}__OUT_DQ.
The X and Y indicate X and Y arm direction. It is easy to understand which direction the axis of the seismometer is aligned.