Type Capacity Maximum Output Power Typical Output Power RRU3936 (850 MHz) GSM: 8 carriers UMTS: 6 carriers LTE FDD: 2 carriers. The bandwidth per carrier is 1.4, 3, 5, 10, 15, or 20 MHz. LTE NB-IoT: 1 carrier 1x80 W For details, see Typical Power Configuration Reference for RRU (Excluding NB-IoT) and NB-IoT Typical Power Configurations (RRU). RRU3936 (900 MHz) GSM: 8 carriers UMTS: 6 carriers LTE FDD: 2 carriers. The bandwidth per carrier is 1.4, 3, 5, 10, 15, or 20 MHz. LTE NB-IoT: 1 carrier 1x80W For details, see Typical Power Configuration Reference for RRU (Excluding NB-IoT) and NB-IoT Typical Power Configurations (RRU). RRU3936 (1900 MHz) GSM: 8 carriers UMTS: 6 carriers LTE FDD: 2 carriers. The bandwidth per carrier is 1.4, 3, 5, 10, 15, or 20 MHz. 1x80W For details, see Typical Power Configuration Reference for RRU (Excluding NB-IoT) . RRU3936 (1800 MHz) GSM: 8 carriers LTE FDD: 2 carriers. The bandwidth per carrier is 1.4, 3, 5, 10, 15, or 20 MHz. LTE NB-IoT: 1 carrier 1x80W For details, see Typical Power Configuration Reference for RRU (Excluding NB-IoT) and NB-IoT Typical Power Configurations (RRU). The Huawei RRU3936 is a radio remote unit RRU used in the Huawei DBS3900 series. It is a compact and powerful RRU that supports various wireless communication technologies.It enables flexible coverage along railway lines, especially tunnels and bridges. It consists of a Baseband Unit and a number of Remote Radio Units RRUs.