BBU–RRU
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Huawei radio category illustration
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Huawei

pRRU5921

What it does: RF signal processing. Operating RF bands / ranges: 900, 1800, 2100, and 2600 MHz.

1 part number: 02312TNY

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Main specifications

Technologies900 MHz: GSM/UMTS/LTE FDD/LTE NB-IoT and listed multi-RAT modes; 1800 MHz: GSM/LTE FDD/LTE NB-IoT; 2100 MHz: UMTS/LTE FDD/LTE NB-IoT; 2600 MHz: LTE TDD/NR
Operating RF bands / ranges900, 1800, 2100, and 2600 MHz
Uplink frequency900: 880–915 MHz; 1800: 1710–1785 MHz; 2100: 1920–1980 MHz; 2600 TDD: 2496–2690 MHz
Downlink frequency900: 925–960 MHz; 1800: 1805–1880 MHz; 2100: 2110–2170 MHz; 2600 TDD: 2496–2690 MHz
TX / RX modesGSM: 1T1R; UMTS: 1T1R or 1T2R; LTE FDD/LTE TDD/NR: 2T2R
RF output power900 MHz: 2 × 100 mW; 1800/2100/2600 MHz: 2 × 250 mW
Interfaces / connectors1 × RJ45 PoE/DC CPRI_E0; 1 × RJ45 ETH CPRI_E1; 1 × optical CPRI RX/TX
Interfaces and data ratesCPRI_E0: 10.1 Gbit/s star; CPRI_E1: 1.25/3.072/10.1 Gbit/s chain; optical CPRI: 10.1 Gbit/s star
Power supply−48 V DC by PoE or DC input; typical consumption 55 W at 50% load, maximum average 65 W at 100% load
FamilyHuawei DBS5900 LampSite
Installation environmentIndoor, temperature-controlled location (ETSI EN 300 019-1-3 Class 3.1); operating temperature −5 °C to +40 °C
IP ratingIP20
Additional technical information
Dimensions
200 × 200 × 58 mm
Weight
≤2.5 kg
Bandwidth
Instantaneous bandwidth: 900 20 MHz; 1800 22.5 MHz; 2100 25 MHz; 2600 TDD 100 MHz
Capacity
GSM: 2 subbands × 4 carriers; UMTS: 4 carriers; LTE FDD: 3 carriers; LTE TDD: 3 carriers; NR: 1 × 100 MHz carrier; LTE TDD+NR: 1 LTE TDD + 1 NR (80 MHz)
Synchronization
In optical mode CPRI: clock signal recovery from the incoming line; frame synchronization from REC
Chassis
Remote-radio enclosure/form factor; documented dimensions: 200 × 200 × 58 mm; ingress protection: IP20
Modules
High-speed interface, digital and analog signal processing
Functional role
Indoor pico remote radio unit for RF processing and CPRI transport
Architecture
Integrated indoor radio and omnidirectional internal antennas; CPRI over copper or optical connection to RHUB
Subtype
pRRU with internal antennas
Details
Internal antenna gain: 1.5 dBi at 900 MHz and 3 dBi at 1800/2100/2600 MHz; linear polarization, omnidirectional
Connection notes
Electrical RHUB (PoE) / optical RHUB (DC)

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