Completed installation of an ITM-X pair of ring heater segments, and associated UHV cables for the lower structure. We assume that the upper UHV cable (D1001521) and bracket (D1001756) -currently installed on the existing ITM-X upper structure- will be (eventually) mated to this lower structure installation. Upper RH: 44.9-ohm Lower RH: 45.6-ohm Photos are attached. See also, the following records: https://dcc.ligo.org//LIGO-T1300463-v21 https://ics-redux.ligo-la.caltech.edu/JIRA/browse/ASSY-D1001838--V7-111 https://ics-redux.ligo-la.caltech.edu/JIRA/browse/ASSY-D1001895--V8-201 --> the temp sensor head broke off at the time of installation, but free cable secured