Same product family
Huawei
RRU3281
What it does: RF transmission / reception. Operating RF bands / ranges: 2600 (B7), RX 2500–2570 MHz, TX 2620–2690 MHz.
5 part numbers: 02311HEF= / 02311HEG / 02311PKB …
Viewing: model overview
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Main specifications
TechnologiesLTE FDD
Operating RF bands / ranges2600 (B7), RX 2500–2570 MHz, TX 2620–2690 MHz
Browse: B7 · 2500–2570 MHz · 2620–2690 MHz
Browse: B7 · 2500–2570 MHz · 2620–2690 MHz
Uplink frequency2600 (Band 7): 2500 – 2570 MHz
Downlink frequency2600 (Band 7): 2620 – 2690 MHz
TX / RX modes4T4R
RF output power4 × 40 W
Interfaces / connectors4 × DIN-female TX/RX (A-D; A/B support RET signal); 2 × CPRI optical; RET; EXT_ALM (RS485 + 2 dry contacts); -48 V DC power socket; PGND
Interfaces and data rates2 CPRI ports, 1.25, 2.5, 4.9, or 9.8 Gbit/s, Star, chain, or ring; RET antenna control supports AISG 1.1/2.0; 12 V feeding voltage; 2.3 A feeding current
Power supply-48 V DC; voltage range: -36 V DC – -57 V DC
Installation environmentOperating environment: ETSI EN 300019-1-4 V2.1.2 (2003-04) Class 4.1, "Non-weatherprotected locations".
IP ratingIP65
Additional technical information
- Dimensions
- 400 mm x 300 mm x 150 mm (18 L, without the housing)
- Weight
- ≤ 21 kg (without the housing)
- Bandwidth
- 2600 (Band 7): IBW 60 MHz
- Capacity
- LTE FDD: 3 carriers. The bandwidth per carrier is 5, 10, 15, or 20 MHz.
- Synchronization
- In mode CPRI: clock signal recovery from the incoming line; frame synchronization from REC
- Chassis
- Remote-radio enclosure/form factor; documented dimensions: 400 mm x 300 mm x 150 mm (18 L, without the housing); ingress protection: IP65
- Modules
- Fixed internal high-speed interface unit, signal-processing unit, power amplifier, duplexer, extension ports and power module; paired Huawei-certified SFP duplex or SFP BIDI optical modules for CPRI
- Functional role
- Remote radio unit (RRU)
- Architecture
- DC blade remote radio unit linked to a BBU or cascaded RRU over two CPRI optical ports; four RF channels connect to the antenna system
- Subtype
- LTE FDD remote radio unit
- Details
- Converts, amplifies and digitizes received RF signals; up-converts transmit signals; multiplexes and filters RX/TX; built-in bias tee on RF ports A/B and DC TMA feed on RF ports A-D
- Connection notes
- BBU via CPRI
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