Alcatel‑Lucent SBEVM BNJ82 1:12 Module – AV950‑01168

The Alcatel‑Lucent SBEVM BNJ82 is a dedicated service and environmental monitoring module, identified by the part code AV950‑01168. This 1:12 unit provides comprehensive supervision of up to twelve individual channels or equipment shelves, collecting critical telemetry data such as temperature, voltage, current, and door contact status. It is an essential component for maintaining the operational integrity of central office and remote telecom shelters.

Product Overview

The SBEVM (Service Board Environmental Voltage Monitor) BNJ82 is designed to interface with the main system controller via a high‑speed serial bus. It continuously polls its twelve input channels, each connected to sensors or power distribution points within the rack. The module processes these analog and digital signals, converts them to digital values, and reports them to the network management system (NMS). In the event of a threshold violation, it generates a local visual alarm and transmits a priority alert to the operations center.

The 1:12 designation indicates a single module capable of monitoring twelve distinct points, significantly reducing the need for multiple discrete sensors and simplifying cabling. The BNJ82 variant includes enhanced electromagnetic interference (EMI) filtering and surge protection, ensuring accurate readings even in high‑noise environments.

Technical Specifications

• Product Type: Environmental and Voltage Monitor

• Model: SBEVM BNJ82

• Part Number: AV950‑01168

• Monitoring Channels: 12 (software‑configurable)

• Analog Inputs: 8 x 0‑10 V or 4‑20 mA (programmable)

• Digital Inputs: 4 x dry contact or 12‑24 VDC

• Measurement Accuracy: ±0.5% full scale

• Communication Interface: RS‑485 (Modbus RTU) and 10/100 Ethernet (SNMP)

• Alarm Outputs: 2 x Form C relays (30 VDC / 1A)

• Power Supply: –48 VDC (nominal, range –36 to –72 VDC)

• Power Consumption: 12 W typical

• Operating Temperature: –20°C to +65°C

• Dimensions: Single‑slot eurocard (6U x 160 mm)

Key Features

• Real‑time monitoring of 12 independent environmental and power parameters.

• Programmable high/low alarm thresholds per channel.

• Integrated event log with time‑stamped entries for fault analysis.

• Web‑based configuration interface for easy setup.

• Redundant communication paths for high availability.

• Visual LED status indicators per channel.

Deployment Scenarios

In a typical central office deployment, the SBEVM BNJ82 is installed in the same shelf as the main processing unit. It monitors the temperature of critical cards, the voltage of power feeders, and the status of cooling fans. If the temperature exceeds a preset limit, the module can activate an external alarm or initiate a fan speed change via its relay outputs.

In remote outdoor cabinets, it monitors battery float voltage and ambient humidity, providing early warning of potential failures. This proactive supervision reduces field dispatches and prevents costly equipment damage.

Integration and Management

Integration with the host system is fully plug‑and‑play; the module is automatically discovered and its channel mapping is configured via the NMS. The SNMP interface allows polling by standard network managers, while the Modbus interface supports integration with legacy building management systems. Firmware upgrades are performed remotely via the Ethernet port.

Reliability

The SBEVM BNJ82 is built to telecom‑grade standards with an MTBF of over 200,000 hours. All inputs are isolated to 1500 VAC to protect against surges and ground loops. The module is NEBS Level 3 certified for temperature and fire resistance.

Conclusion

The Alcatel‑Lucent SBEVM BNJ82 1:12 module (AV950‑01168) offers a compact, intelligent solution for environmental and power monitoring. Its robust design, flexible channel configuration, and remote management capabilities make it an indispensable tool for ensuring the longevity and reliability of telecom infrastructure.