Alcatel-Lucent 9500 MPR 11GHz Microwave Link – High-Capacity Point-to-Point Radio System

The Alcatel-Lucent 9500 MPR (Microwave Packet Radio) system, specifically the MPT HC-HQAM variant operating in the 11 GHz band, represents a state-of-the-art microwave transmission solution for wireless backhaul applications. This outdoor unit (ODU), identified by part number 3DB22001DA, supports high-order modulation up to 2048-QAM (HC-HQAM), enabling throughput exceeding 2 Gbps in a single channel. The 9500 MPR is designed for carrier-grade reliability, with features such as adaptive modulation that dynamically adjusts the modulation scheme based on real-time propagation conditions, ensuring link availability even during fading events. The unit is compact, lightweight, and weatherproof (IP67 rated), making it suitable for tower, rooftop, and pole installations.

RF specifications of the 11 GHz variant include a frequency range of 10.7 to 11.7 GHz, with a channel spacing of 7, 14, 28, or 56 MHz, selectable via software. The transmitter output power is adjustable from +10 dBm to +23 dBm, with automatic level control to maintain constant output over temperature and aging. The receiver has a noise figure of 4.5 dB typical, with a dynamic range of 70 dB, supporting long-distance links with high path loss. The antenna interface is a standard 1.8-meter to 3-meter reflector mount, with an OMT (Ortho-Mode Transducer) for dual-polarization operation, enabling XPIC (Cross-Polarization Interference Cancellation) for capacity doubling. The unit includes a built-in spectrum analyzer function for link alignment and troubleshooting.

Data transport capabilities include both native Ethernet and TDM support, with sync-E and IEEE 1588v2 synchronization for mobile backhaul networks. The system supports multiple VLANs, QoS, and advanced traffic shaping. The management interface is accessible via SNMP, CLI, or a web-based GUI, providing full configuration, alarms, and performance monitoring. The unit also features a built-in loopback test and bit-error-rate (BER) generator for commissioning and maintenance. Redundant power inputs (DC -48V) with automatic failover are standard.

Installation of the 9500 MPR ODU involves mounting the unit on the antenna support structure, connecting the coaxial cable or elliptical waveguide to the antenna, and routing the IF/DC cable to the indoor unit (IDU). The IDU provides the interface to the network. Proper grounding and lightning protection are essential, and the unit includes internal surge suppression. The adaptive modulation feature requires careful alignment to achieve the optimal modulation profile; the alignment procedure is guided by a visual signal strength indicator on the unit. After physical installation, remote commissioning is performed from the NMS (Network Management System).

Maintenance of the microwave link involves periodic monitoring of the error vector magnitude (EVM), received signal level (RSL), and adaptive modulation logs. The unit has self-diagnostics and can be set to generate alarms for degradation. The outdoor unit has no user-serviceable parts; if a fault is suspected, the unit is replaced as a whole. The internal desiccant bag for moisture control should be checked every two years. Firmware upgrades are performed over the air using the management interface.

Typical applications of the Alcatel-Lucent 9500 MPR 11GHz link include mobile backhaul for 4G/5G base stations, connecting remote radio heads to the core network, and providing high-capacity fiber-like connectivity in areas where fiber deployment is impractical. Its high-order modulation and adaptive features make it an ideal solution for urban and suburban deployments where spectrum is scarce. The 9500 MPR series is a trusted platform in operator networks worldwide, renowned for its performance, reliability, and ease of deployment.