Huawei 27030053 M900/M1800-family GSM base station cabinet Telecom System Card / Module

The 27030053 is a Huawei M900-ESCU3.0-4/WT Environment and System Control Unit, a numbered variant of the same ESCU3.0 board family used across Huawei’s M900/M1800 GSM base station cabinet range (the ‘/WT’ designation typically denoting a specific configuration-specific build). Like other boards in the ESCU family, it monitors cabinet environmental conditions and power/signal distribution status, reporting fault conditions such as temperature excursions or power irregularities back to the site’s operation and maintenance system. It works alongside the DTRU/DDPU combining and duplexing boards and the cabinet’s fan and power modules to keep an M900/M1800-family GSM site running within safe operating limits. As with other ESCU-family boards, exact sub-variant differences beyond the base ESCU3.0 function are not independently documented, so the specific WT configuration detail should be confirmed against your site’s build sheet. Tech-Star (UK-based, shipped worldwide) supplies this as a tested spare. Get in touch with our team to confirm compatibility before ordering.