Alcatel Lucent RRH2X40-07L-AT Remote Radio Head

The Alcatel Lucent RRH2X40-07L-AT is a remote radio head (RRH) designed for modern wireless base station deployments. This outdoor unit houses the RF power amplifier, low‑noise receiver, and filtering stages, enabling the baseband unit to be located remotely via fiber optic CPRI links. The RRH supports high‑power transmission and sensitive reception for LTE and 5G New Radio (NR) networks, significantly reducing feeder losses and improving overall system performance. Its compact, ruggedized enclosure is built for tower‑mounting in all weather conditions.

Overview

The RRH2X40-07L-AT is part of Alcatel Lucent’s RRH family, engineered for multi‑band operation. This model operates in specific frequency bands (typically 700–800 MHz or 1800–2100 MHz, field‑configurable) and provides dual‑path RF chains for 2x2 MIMO support. It incorporates advanced digital predistortion (DPD) and crest factor reduction (CFR) to maximize amplifier efficiency while maintaining linearity. The unit interfaces with the baseband unit (BBU) through a CPRI link, carrying IQ data, control signals, and synchronization.

Key Features

• High output power: up to 40 W per carrier (per path)

• 2x2 MIMO capability for improved capacity and coverage

• Multi‑carrier support with excellent ACLR performance

• CPRI interface with line rates up to 9.8 Gbps (option 7/8)

• Integrated duplexer and band‑pass filters for high selectivity

• Advanced DPD and CFR for >45% efficiency at peak power

• Built‑in VSWR monitoring, load mismatch detection, and automatic gain control

• External antenna connectors: 2x 7/16 DIN (female)

Technical Specifications

• Frequency Bands: 700 MHz / 800 MHz / 1800 MHz / 2100 MHz (variant dependent)

• Transmit Power: 40 W (46 dBm) per carrier, 2x2 configuration

• Receiver Noise Figure: ≤ 2.2 dB

• CPRI Interface: 2x SFP+ (9.8 Gbps) for fiber or electrical connection

• Antenna Ports: 2x TX/RX (duplexed), impedance 50 Ω

• Power Input: -48 VDC nominal, range -40.5 to -57 VDC

• Power Consumption: 500 W typical at full load

• Cooling: Forced air with variable speed fans, IP67 enclosure

• Operating Temperature: -40°C to +55°C

• Dimensions: 420 mm (H) × 480 mm (W) × 200 mm (D)

• Weight: 22 kg

Applications

The RRH2X40-07L-AT is widely used in macro‑cell and small‑cell deployments for LTE‑Advanced and 5G NR. Its high output power makes it suitable for urban and suburban coverage, while its lightweight design facilitates installation on existing tower infrastructure. It is also deployed in private LTE networks for industrial IoT and public safety.

Integration and Management

The RRH connects to the BBU via single or dual fiber links for redundancy. Configuration is managed through the base station’s OAM system using standard 3GPP MIBs and vendor‑specific extensions. The unit supports remote software upgrades, gain adjustments, and diagnostic tests. Real‑time telemetry—including transmit power, reflected power, temperature, and fan speed—is reported to the network management center.

Installation and Maintenance

Installation involves mounting the RRH on a tower or pole using the provided brackets, connecting antenna cables, and routing fiber and power cables. The unit includes built‑in lightning surge protection and grounding points. Routine maintenance includes periodic inspection of air filters, weather‑sealing of connectors, and monitoring fan operation. Front‑panel LEDs indicate power, alarm, and link status, simplifying on‑site troubleshooting.

Conclusion

The Alcatel Lucent RRH2X40-07L-AT remote radio head delivers exceptional RF performance, high efficiency, and robust environmental resilience. Its support for MIMO, multi‑carrier operation, and advanced management features make it a reliable component for modern RAN architectures, enabling operators to meet growing capacity and coverage demands.