BBU–RRU
EN
Huawei radio category illustration
Illustration
Huawei

RRU3908 V1

What it does: RF transmission / reception. TX / RX modes: 2T2R.

2 part numbers: 02316324 / 02316324; 02317754; 02317758; 02316200; 02316205; 02316266; 02316267; 02317165; 02317178; 02316875; 02317182; 02317756; 02317773; 02317183; 02317184

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Main specifications

TX / RX modes2T2R
RF output powerMaximum configuration: 2 × 40 W
Interfaces / connectorsDC V1: 2 × DIN female RF TX/RX (ANT-A/B), DB2W2 RX_IN/OUT inter-RRU RF, DB9 RET, 2 × DLC optical CPRI (CPRI_E/W), −48 V DC RTN(+)/NEG(−), DB15 EXT_ALM and hardware-reset button
FamilyHuawei RRU3908 V1 remote-radio family
Installation environmentOperating temperature: −40…+50 °C without solar radiation; −40…+45 °C with solar radiation. Operating-environment class ETSI EN 300019-1-4 Class 4.1 (non-weatherprotected locations)
IP ratingIP65
Additional technical information
Dimensions
DC V1: 485 × 380 × 170 mm with housing; PN 02316324 is also documented as 480 × 356 × 140 mm without housing. AC V1: 485 × 380 × 250 mm with housing
For PN 02316324 is also documented as 480 × 356 × 140 mm without housing. AC V1: 485 × 380 × 250 mm with housing.
Weight
DC V1: 23 kg with housing; PN 02316324 is also documented as 21 kg without housing. AC V1: 29 kg with housing
For PN 02316324 is also documented as 21 kg without housing. AC V1: 29 kg with housing.
Power supply
DC V1: −48 V DC (−36…−57 V DC); direct PN mapping 02316324 is −48 V DC. AC V1 variants: 200–240 V AC single-phase (176–290 V AC) or 110 V AC dual-phase (90/180–135/270 V AC)
For PN mapping 02316324 is −48 V DC. AC V1 variants: 200–240 V AC single-phase (176–290 V AC.
Capacity
GSM: 6 TRXs. UMTS: 4 carriers. LTE FDD: 1 carrier with 5/10/15/20 MHz bandwidth
Synchronization
DC V1: In mode CPRI: clock signal recovery from the incoming line; frame synchronization from REC
Chassis
Remote-radio enclosure; DC V1 and AC V1 housing variants are documented separately
Modules
High-speed interface unit, signal-processing unit, power amplifier, duplexer, extension-port section and power module
Architecture
Software-defined 2T2R remote radio unit; internal chain comprises high-speed interface, signal processing, power amplification, duplexing and power sections, with baseband transport to the BBU over CPRI
Details
Converts received RF to IF and performs amplification/A-D; filters, D-A converts and up-converts TX; multiplexes/filters RX and TX on the antenna path; built-in Bias Tee on ANT-A carries OOK and supplies TMA power

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