Huawei RRU 3959a — 2100 MHz (Band 1) Multimode Remote Radio Unit, S/N 02312CFD

1) Product overview

RRU 3959a is a multimode outdoor remote radio unit (RRU) for Huawei DBS/BBU macro sites. It adopts SDR (software-defined radio) so the same hardware can run different RATs (GSM / UMTS / LTE FDD) via software configuration. It is installed near the antenna to reduce feeder loss and connects to the BBU over optical CPRI. Scribd+1

2) Frequency & RF (02312CFD / 2100 MHz variant)

• 3GPP band / service: Band 1 (2100 MHz) for UMTS/LTE FDD; typical ranges RX 1920–1980 MHz / TX 2110–2170 MHz. Uonel Co.Limtied

• Paths / MIMO: 2T2R. Uonel Co.Limtied

• Output power: up to 2 × 60 W total PA rating (variant-dependent; verify on nameplate for your unit). pdfcoffee.com+1

• Supported RATs on platform: GSM / UMTS / LTE FDD (mode mix subject to license and software baseline). Scribd

Variant mapping: Channel and datasheet entries explicitly list RRU 3959a, WD5MIRULC10D, 02312CFD with TX 2110–2170 / RX 1920–1980 MHz, 2T2R, 2×60 W, −48 V DC, CPRI up to 9.8 Gb/s. Uonel Co.Limtied

3) Interfaces & front-haul

• CPRI ports: 2× optical CPRI; typical supported line rates 1.25 / 2.5 / 4.9 / 9.8 Gb/s; star/chain/dual-star topologies supported at the site level. cosconor.fr+1

• Antenna ports: 2× RF (DIN-type or 4.3-10 depending on lot); connects to external antennas/RET. cosconor.fr

• RET / AISG: DB-9 RET control port; DB-15 external alarm input. cosconor.fr

• Power input: tool-less −48 V DC press-fit connector. cosconor.fr

4) Mechanical & environmental (family values, applicable to 3959/3959a class)

• Outdoor enclosure with weather sealing; designed for pole/wall/tower mounting near the antenna. Uonel Co.Limtied

• Typical operating conditions for this class include −40 °C…+55 °C (ambient) and telecom-grade humidity; confirm against site method statement for your software/hardware release. actfornet.com

5) System integration

• Compatible BBUs: Huawei DBS/BBU3900/3910/5900 families over optical CPRI. cosconor.fr

• Software baselines: documented for SRAN/eRAN/GBSS releases (e.g., SRAN 10.1+ / eRAN 8.1+ for 3959a in hardware descriptions). Actual mode combinations and carrier counts are license/version-dependent. cosconor.fr

6) Typical planning figures (reference)

• Max PA rating: 2×60 W (platform statement for RRU 3959a). pdfcoffee.com

• CPRI distance: single-mode fiber front-haul (tens of km possible depending on BBU optics and line rate; design per project baseline). actfornet.com

Engineering note: Some public Huawei docs for RRU3959/3959w focus on 900 MHz variants; for RRU 3959a (2100 MHz) use the 2100 MHz tables and your unit label (02312CFD) as the source of truth for band and power. cosconor.fr+1

7) Incoming inspection checklist (recommended)

1. Nameplate / PN: Confirm RRU 3959a – 02312CFD (and any commercial code such as WD5MIRULC10D). Uonel Co.Limtied

2. Optics / CPRI: Check SFP type and CPRI rate up to 9.8 Gb/s; perform optical power and loopback tests. cosconor.fr

3. RF / RET: Verify both RF ports, measure output power per path, and test RET (DB-9) and external alarms (DB-15). cosconor.fr

4. Power: Verify −48 V DC feed and ground; inspect environmental seals for outdoor deployment. cosconor.fr+1

Open, verifiable sources

• RRU3959a Technical Specifications — multimode SDR, platform capabilities; typical power notes. Scribd+1

• RRU3959/3959w Hardware Description — ports (RF×2, CPRI×2, DB-9 RET, DB-15 alarm, press-fit DC), outdoor design, topologies. cosconor.fr

• DBS3900/DC Blade RRU Hardware Description — product versions and baseline applicability including RRU 3959a. cosconor.fr

• Channel listings confirming the exact variant (RRU 3959a – 02312CFD, TX 2110–2170 / RX 1920–1980 MHz, 2T2R, 2×60 W, −48 V, CPRI up to 9.8 G). Uonel Co.Limtied