Nokia RRU FXDB — Triple-Sector 3×80 W Radio Module for 900 MHz (Band 8)

Product Overview

The Nokia FXDB is a triple-sector Flexi Remote Radio Module (RFM) designed for macro base stations operating in 900 MHz (Band 8 / GSM / WCDMA / LTE). Each sector supports 80 W transmit power, giving a total output capability of 3 × 80 W = 240 W. It integrates TX/RX paths and sector diversity inside a single outdoor enclosure, simplifying deployment and reducing equipment footprint.

Key Features

• Power Architecture: 3×80 W (80 W per sector) transmit output.

• Sector Configuration: 3 × TX chains, with support for 6 RX paths (dual-diversity per sector).

• Operating Frequencies: TX 925–960 MHz, RX 880–915 MHz (aligned with Band 8).

• Instantaneous Bandwidth: Up to 35 MHz full Band 8 support in LTE.

• Connectivity / Interfaces:
   • 3 × OBSAI RP-3 interfaces toward the baseband / radio chain
   • 3 × antenna ports (TX/RX)
   • 3 × RX diversity ports
   • AISG 2.0 / RET support for remote antenna tilt control
   • Optical interface (e.g. SFP) for backhaul / chain multiplexing

• Multi-Mode Support: Compatible with GSM, WCDMA, and LTE (FDD) modes.

• Environmental Design: Outdoor rated; designed for rooftop, tower, or mast installation.

• Mounting Options: Pole mount, wall bracket, rack mounting adaptors as required.

• Typical Dimensions & Weight: Module size approx. 115 mm (H) × 420 mm (W) × 400 mm (D); weight around 20–30 kg (actual may vary by hardware revision).

• Power Supply: –48 V DC standard (verify on the specific unit).

Applications & Use Cases

• Macro cell deployment in 900 MHz used areas (coverage or capacity layers).

• 2G/3G/4G integrated sites upgrading or coexisting in hybrid mode.

• Sites with constrained space where a triple-sector module is preferred over three discrete units.

• Rural or suburban networks requiring reliable coverage across long distances.