Huawei GM5D00GTMU01 BTS3900 / DBS3900 / BBU3900 / BBU3910 Radio Controller Module

The Huawei GM5D00GTMU01 is a GTMUb (GSM Main Control and Transport Unit) board, confirmed by multiple telecom equipment suppliers as a main control and transport card fitted to Huawei’s BTS3900, DBS3900, BBU3900 and BBU3910 base station platforms. The GTMU provides the main control processing and transport connectivity for the BBU/BTS subrack, coordinating the baseband, transmission and power boards fitted alongside it and running the base station’s system-level software and clock functions. The GTMUb revision operates from a -48V DC supply, weighs around 5kg and supports GSM, LTE FDD and combined GL/LM/GLM working modes, reflecting its role as a multi-technology control board within Huawei’s SingleRAN base station family. As GTMU boards sit at the heart of the base station control plane, correct hardware and firmware revision matching to the host system’s software baseline is essential before fitting. Genuine GTMUb boards are recovered from decommissioned or upgraded base stations and tested before resale, since new manufacture of this legacy control board has ceased. Tech-Star (UK-based, shipped worldwide) stocks GTMU main control boards including the GM5D00GTMU01 for operators maintaining Huawei BTS3900/BBU3900 base station infrastructure. Please enquire for current stock and pricing.